133 Network Administrators jobs in Dallas
Network Security Engineer
Posted 1 day ago
Job Viewed
Job Description
Responsible for the overall design and implementation of technology security initiatives and risk management for the district. Ensure the District's infrastructure, systems, and data are appropriately secure and maintained with proper authorized control within District policies, standards, and objectives.
QUALIFICATIONS:
Education/Certification:
- Bachelor's degree in Computer Science, Information Systems, or related field or equivalent experience in Information Technology security administration preferred.
- Cisco CCNA - Security/CCNP - Security preferred.
- Certified Information Systems Security Professional (CISSP) preferred.
• In depth understanding of local area (LAN) networks, wide area networks (WAN), servers, storage, DNS, and network protocols.
• Knowledge of firewalls, intrusion detection systems, anti-virus software, data encryption, current and evolving information security concepts and strategies, and other industry-standard techniques and practices.
• Experience in conducting intrusion and exploit analysis.
• Strong knowledge of securing Windows, Linux, Cisco, Palo Alto, and other devices in a production environment.
• Fundamental understanding, practice, and implementation of enterprise cloud security.
• Ability to manage and safeguard sensitive information from unauthorized access.
• Experience in database administration and robust log file analysis and reporting.
- Strong organizational skills and ability to multi-task with minimal supervision.
- Ability to function in a team based environment with the ability to share knowledge and a willingness to learn from other team members.
- Ability to communicate effectively with various levels of technical ability.
- Strong commitment to customer service.
- Technical, analytical and interpersonal skills.
EXPERIENCE:
- Three or more years of information technology security and risk management experience is preferred.
Network and Data Security:
• Develop and enhance an information security management and control framework based on established industry standards.
• Design, perform, and/or oversee penetration testing of all systems in order to proactively identify system vulnerabilities; define security requirements; correct security issues.
• Analyze and resolve security breaches and vulnerability issues accurately in a timely manner. Identify the root cause analysis to prevent it from reoccurring.
• Evaluate, recommend, and manage existing and new security products, services, and techniques for enhancing information security controls and practices; responsible for the integration, monitoring and remediation of network security devices, backend infrastructure, and endpoint security.
• Participate, plan for disaster recovery exercises and business continuity plans, and update them as needed.
• Design, implement, and maintain public key infrastructures (PKIs), with use of certificate authorities (CAs) and digital signatures for all systems where applicable.
• Maintain district system logging aggregation for multiple systems.
• Safeguard all CISD sensitive information from unauthorized exposure.
• Provides strategic risk guidance for IT projects and trusted learning environments including the evaluation and recommendation of technical controls and solutions.
• Serve as liaison to software and hardware vendors to maintain appropriate product support and to resolve any issues that occur.
• Maintain network design and configuration documentation for all security hardware and services.
• Provide assistance to all staff to identify and resolve security issues and answers to technology security related questions.
• Provide technical assistance and support to all Technology Support Specialists on any issue that they are unable to resolve.
• Maintain and evaluate district-wide security for all systems.
• Perform district security audits and make recommendations for improvement. Monitor activity reports, take actions of intrusion, and act on findings.
• Identify, curtail and prevent possible infractions of the district's Responsible Use for Technology Resources policy.
Administrative Functions:
• Proactively promote information security awareness and education by establishing and overseeing end user training programs tailored to the evolving needs of the District.
• Coordinate investigations of suspected computer system misuse with the appropriate data owners, application owners, and document the results of such investigations; coordinate with Human Resources and District administration as necessary.
• Work with the appropriate District resources to monitor the external threat environment for emerging threats, and advises relevant stakeholders on the appropriate courses of action.
• Identify and recommend the acquisition of new services, software and hardware to meet the security needs of the District.
• Provide technical training sessions as required.
• Manage assigned projects and programs to deliver services in accordance with established objectives.
Organization Improvement:
• Provide ongoing research for technologies and strategies that serve to further the security hardening posture for the district.
• Perform network traffic audits and make recommendations for improvement.
• Serve as an internal information security consultant to the organization by ensuring the District applies industry best practices surrounding information security.
• Attend all technology related meetings as designated by the Director of Technical Services.
• Promote departmental culture of customer service through frequent communication, positive relationships and prompt support.
Records and Reports:
• Ensure that all security related documentation is current and accurate; report on appropriate information security standards adherence.
• Implement, manage, and enforce information security directives as mandated by federal and state law, the State Board of Education, and the local board policy; perform ongoing risk assessments and audits to ensure that information systems are adequate and meet these requirements.
• Maintain accurate documentation, diagrams and maps of district security infrastructure.
• Maintain accurate, up to date records of preventive maintenance.
• Maintain accurate records of time and materials required to perform repairs and service.
• Participate in assignment, priority and record keeping of technology-related work orders.
• Compile, maintain, and file all physical and computerized reports, records, and other security documents as required.
• Comply with policies established by federal and state law, the State Board of Education, and the local board policy.
Classroom Management and Organization
• Working Conditions:
• The majority of the job responsibilities for this position will occur within an indoor office and/or campus environment.
• T he employee will occasionally be required to engage in labor in buildings without air conditioning.
• The employee must be willing to work in alternative locations and environments as needed.
Mental Demands/Physical Demands/Environmental Factors:
• Repetitive hand motions and prolonged use of computer; lifting and moving of heavy equipment; stooping, bending, and kneeling.
• Lift, carry, push and/or pull items of up to 50 lbs. on a daily basis.
• Prolonged and irregular hours as needed.
• Maintains professionalism under stress.
• Districtwide and statewide travel may be required.
• Meet deadlines as defined.
• Hear and speak to exchange information in person and/or on the telephone.
• Accurately perceive sound, near and far vision, color vision, peripheral vision, depth perception and the ability to adjust focus.
• Sit or stand for extended periods of time.
START DATE: 07/01/2025
Network Security Engineer
Posted today
Job Viewed
Job Description
Responsible for the overall design and implementation of technology security initiatives and risk management for the district. Ensure the District's infrastructure, systems, and data are appropriately secure and maintained with proper authorized control within District policies, standards, and objectives.
QUALIFICATIONS:
Education/Certification:
- Bachelor's degree in Computer Science, Information Systems, or related field or equivalent experience in Information Technology security administration preferred.
- Cisco CCNA - Security/CCNP - Security preferred.
- Certified Information Systems Security Professional (CISSP) preferred.
•In depth understanding of local area (LAN) networks, wide area networks (WAN), servers, storage, DNS, and network protocols.
•Knowledge of firewalls, intrusion detection systems, anti-virus software, data encryption, current and evolving information security concepts and strategies, and other industry-standard techniques and practices.
•Experience in conducting intrusion and exploit analysis.
•Strong knowledge of securing Windows, Linux, Cisco, Palo Alto, and other devices in a production environment.
•Fundamental understanding, practice, and implementation of enterprise cloud security.
•Ability to manage and safeguard sensitive information from unauthorized access.
•Experience in database administration and robust log file analysis and reporting.
- Strong organizational skills and ability to multi-task with minimal supervision.
- Ability to function in a team based environment with the ability to share knowledge and a willingness to learn from other team members.
- Ability to communicate effectively with various levels of technical ability.
- Strong commitment to customer service.
- Technical, analytical and interpersonal skills.
EXPERIENCE:
- Three or more years of information technology security and risk management experience is preferred.
Network and Data Security:
•Develop and enhance an information security management and control framework based on established industry standards.
•Design, perform, and/or oversee penetration testing of all systems in order to proactively identify system vulnerabilities; define security requirements; correct security issues.
•Analyze and resolve security breaches and vulnerability issues accurately in a timely manner. Identify the root cause analysis to prevent it from reoccurring.
•Evaluate, recommend, and manage existing and new security products, services, and techniques for enhancing information security controls and practices; responsible for the integration, monitoring and remediation of network security devices, backend infrastructure, and endpoint security.
•Participate, plan for disaster recovery exercises and business continuity plans, and update them as needed.
•Design, implement, and maintain public key infrastructures (PKIs), with use of certificate authorities (CAs) and digital signatures for all systems where applicable.
•Maintain district system logging aggregation for multiple systems.
•Safeguard all CISD sensitive information from unauthorized exposure.
•Provides strategic risk guidance for IT projects and trusted learning environments including the evaluation and recommendation of technical controls and solutions.
•Serve as liaison to software and hardware vendors to maintain appropriate product support and to resolve any issues that occur.
•Maintain network design and configuration documentation for all security hardware and services.
•Provide assistance to all staff to identify and resolve security issues and answers to technology security related questions.
•Provide technical assistance and support to all Technology Support Specialists on any issue that they are unable to resolve.
•Maintain and evaluate district-wide security for all systems.
•Perform district security audits and make recommendations for improvement. Monitor activity reports, take actions of intrusion, and act on findings.
•Identify, curtail and prevent possible infractions of the district's Responsible Use for Technology Resources policy.
Administrative Functions:
•Proactively promote information security awareness and education by establishing and overseeing end user training programs tailored to the evolving needs of the District.
•Coordinate investigations of suspected computer system misuse with the appropriate data owners, application owners, and document the results of such investigations; coordinate with Human Resources and District administration as necessary.
•Work with the appropriate District resources to monitor the external threat environment for emerging threats, and advises relevant stakeholders on the appropriate courses of action.
•Identify and recommend the acquisition of new services, software and hardware to meet the security needs of the District.
•Provide technical training sessions as required.
•Manage assigned projects and programs to deliver services in accordance with established objectives.
Organization Improvement:
•Provide ongoing research for technologies and strategies that serve to further the security hardening posture for the district.
•Perform network traffic audits and make recommendations for improvement.
•Serve as an internal information security consultant to the organization by ensuring the District applies industry best practices surrounding information security.
•Attend all technology related meetings as designated by the Director of Technical Services.
•Promote departmental culture of customer service through frequent communication, positive relationships and prompt support.
Records and Reports:
•Ensure that all security related documentation is current and accurate; report on appropriate information security standards adherence.
•Implement, manage, and enforce information security directives as mandated by federal and state law, the State Board of Education, and the local board policy; perform ongoing risk assessments and audits to ensure that information systems are adequate and meet these requirements.
•Maintain accurate documentation, diagrams and maps of district security infrastructure.
•Maintain accurate, up to date records of preventive maintenance.
•Maintain accurate records of time and materials required to perform repairs and service.
•Participate in assignment, priority and record keeping of technology-related work orders.
•Compile, maintain, and file all physical and computerized reports, records, and other security documents as required.
•Comply with policies established by federal and state law, the State Board of Education, and the local board policy.
Classroom Management and Organization
• Working Conditions:
•The majority of the job responsibilities for this position will occur within an indoor office and/or campus environment.
•T he employee will occasionally be required to engage in labor in buildings without air conditioning.
•The employee must be willing to work in alternative locations and environments as needed.
Mental Demands/Physical Demands/Environmental Factors:
•Repetitive hand motions and prolonged use of computer; lifting and moving of heavy equipment; stooping, bending, and kneeling.
•Lift, carry, push and/or pull items of up to 50 lbs. on a daily basis.
•Prolonged and irregular hours as needed.
•Maintains professionalism under stress.
•Districtwide and statewide travel may be required.
•Meet deadlines as defined.
•Hear and speak to exchange information in person and/or on the telephone.
•Accurately perceive sound, near and far vision, color vision, peripheral vision, depth perception and the ability to adjust focus.
•Sit or stand for extended periods of time.
START DATE: 07/01/2025
Network Security Engineer
Posted 1 day ago
Job Viewed
Job Description
Benefits: Work Environment & Culture Career & Growth Development Opportunity for advancement Position: Network Security Engineer Location: Dallas, TX Type: Long Term Are you a Network Security Engineer with a passion for designing, securing, and optimizing enterprise-level network infrastructures? We are looking for a results-driven professional who thrives in high-stakes environments, tackling complex security challenges while ensuring seamless network performance. If you have a strong background in network architecture, security compliance, and performance optimization, we invite you to join our team and make an impact! Key Responsibilities: Network Architecture & Optimization – Design, configure, and optimize network infrastructure, including routers, switches, firewalls, and VPNs. Security & Compliance – Implement robust security policies, risk mitigation strategies, and access controls to safeguard critical data. Monitoring & Threat Detection – Leverage advanced tools for real-time network monitoring, anomaly detection, and security incident response. Incident Response & Troubleshooting – Analyze security threats, diagnose network issues, and deploy timely solutions to maintain business continuity. Disaster Recovery & Redundancy Planning – Develop and maintain backup, recovery, and failover strategies to ensure high availability. Collaboration & Documentation – Work cross-functionally with IT teams to enforce security best practices and document network configurations. Qualifications & Experience: Experience: Minimum 7+ years in network security engineering, covering: Network design, architecture, and security enforcement. Advanced routing, switching, and firewall configuration. Hands-on experience with IDS/IPS, VPNs, SD-WAN, and cloud security controls. Deep knowledge of network security monitoring and threat intelligence tools. Technical Skills: Strong expertise in TCP/IP, VPNs, VLANs, BGP, OSPF, EIGRP, and MPLS. Proficiency in securing LAN/WAN environments, firewalls (Palo Alto, Cisco, Fortinet), and cloud-based security. Familiarity with SIEM, intrusion detection/prevention systems, and vulnerability management. Scripting experience (Python, PowerShell, or Bash) is a plus. Certifications (Preferred but not mandatory): CCNA, CCNP, CCIE, CISSP, MCSE, MCSA, or equivalent. If you’re ready to elevate network security standards and drive innovation, we’d love to hear from you! #J-18808-Ljbffr
Network Security Engineer / Network Admin
Posted today
Job Viewed
Job Description
Dallas, TX
Exp. Reqd.: 8 - 10Years
Contract Role
Onsite form Day 1
Required Skill:
- Cisco Routing and Nexus switching / SDWAN
- Network Security Palo Alto, Cisco
- Some exp. in Azure
- Must have good communication skill
- Good team player
Diverse Lynx LLC is an Equal Employment Opportunity employer. All qualified applicants will receive due consideration for employment without any discrimination. All applicants will be evaluated solely on the basis of their ability, competence and their proven capability to perform the functions outlined in the corresponding role. We promote and support a diverse workforce across all levels in the company.
Senior Network Security Engineer
Posted today
Job Viewed
Job Description
REQUIREMENTS: Bachelor's or foreign equivalent degree in Computer Science, Information Systems, Computer/Electronic Engineering, Cybersecurity, or a related field, and 8 years of experience in the job offered or as a Network Engineer, Cloud Security Engineer, IT Security Analyst, Software Engineer, or in a related/similar position. Experience therein to include the following:
- 8 years in Information Security Technology, including Building Security Architecture/Design for Infrastructure, Cloud, and Apps, Cloud Architecture, and Cloud Security Solutions;
- 4 years in Networking, including Routers and Switches, Internet Routing, Network Attack Vectors, Wide Area Networks (WAN), and Network Access Controls;
- 4 years in Firewalls (Fortinet or Cisco FTD Firewalls), including Configuration, Policy Management, Auditing, and Monitoring; and
- 2 years with Azure and AWS Cloud Architecture and Security; Site-to-Site and Remote Access VPNs; and Endpoint Protection (EDR) and Data Loss Prevention (DLP) Technologies.
#LI-DNI
#xindREQUIREMENTS: Bachelor's or foreign equivalent degree in Computer Science, Information Systems, Computer/Electronic Engineering, Cybersecurity, or a related field, and 8 years of experience in the job offered or as a Network Engineer, Cloud Security Engineer, IT Security Analyst, Software Engineer, or in a related/similar position. Experience therein to include the following:
- 8 years in Information Security Technology, including Building Security Architecture/Design for Infrastructure, Cloud, and Apps, Cloud Architecture, and Cloud Security Solutions;
- 4 years in Networking, including Routers and Switches, Internet Routing, Network Attack Vectors, Wide Area Networks (WAN), and Network Access Controls;
- 4 years in Firewalls (Fortinet or Cisco FTD Firewalls), including Configuration, Policy Management, Auditing, and Monitoring; and
- 2 years with Azure and AWS Cloud Architecture and Security; Site-to-Site and Remote Access VPNs; and Endpoint Protection (EDR) and Data Loss Prevention (DLP) Technologies.
RATE OF PAY: $144,789-$193,107 /year
REFER TO: Job code KSHH-I.
#LI-DNI
#xindNotice of Filing of Application for Alien Employment Certification
This Notice is being provided as a result of the filing of an application for permanent alien labor certification for the position shown below. Any person may provide documentary evidence bearing on the application to the Certifying Officer, U.S. Department of Labor, Employment and Training Administration, Office of Foreign Labor Certification
200 Constitution Avenue, NW, Room N-5311, Washington, DC 20210, Telephone: ( , Fax: (
EMPLOYER: Overhead Door Corporation
JOB TITLE: Senior Security Network Engineer
LOCATION: 2501 S. State Hwy 121 Business, Suite 200, Lewisville, TX 75067
DUTIES: Report to the Director of Information Security and Compliance. Work on-site at Overhead Door's Corporate HQ. Manage day-to-day operations of on-premise and cloud security. Administer all security systems and tools. Identify, investigate, and resolve security incidents. Assist in designing security systems and strategy. Participate in creating and maintaining policies, standards, baselines, guidelines, and procedures. Ensure detail and process-oriented work. Demonstrate problem-solving abilities. Implement and oversee cloud security solutions and architectural designs (Azure/AWS). Manage email/web filtering technologies. Conduct risk assessments and apply security principles/best practices. Perform vulnerability scanning, penetration testing, and application testing. Apply emerging technologies to develop secure solutions across diverse network/communication protocols. Utilize frameworks such as NIST and CIS for security compliance. Architect, design, and implement large-scale WAN architectures with a focus on network security. Manage firewalls (Cisco FTD, FortiGate), IPS/IDS devices, routing, and switching. Implement and manage endpoint detection and response (EDR) and DLP technologies. Configure and audit VPN technologies, including site-to-site and remote access VPNs. Use firewall security orchestration and automation tools. Troubleshoot and resolve complex security issues.EMPLOYER: Overhead Door Corporation
JOB TITLE: Senior Security Network Engineer
LOCATION: Lewisville, TX
DUTIES: Report to the Director of Information Security and Compliance. Work on-site at Overhead Door's Corporate HQ. Manage day-to-day operations of on-premise and cloud security. Administer all security systems and tools. Identify, investigate, and resolve security incidents. Assist in designing security systems and strategy. Participate in creating and maintaining policies, standards, baselines, guidelines, and procedures. Ensure detail and process-oriented work. Demonstrate problem-solving abilities. Implement and oversee cloud security solutions and architectural designs (Azure/AWS). Manage email/web filtering technologies. Conduct risk assessments and apply security principles/best practices. Perform vulnerability scanning, penetration testing, and application testing. Apply emerging technologies to develop secure solutions across diverse network/communication protocols. Utilize frameworks such as NIST and CIS for security compliance. Architect, design, and implement large-scale WAN architectures with a focus on network security. Manage firewalls (Cisco FTD, FortiGate), IPS/IDS devices, routing, and switching. Implement and manage endpoint detection and response (EDR) and DLP technologies. Configure and audit VPN technologies, including site-to-site and remote access VPNs. Use firewall security orchestration and automation tools. Troubleshoot and resolve complex security issues.
Senior Network Security Engineer
Posted 18 days ago
Job Viewed
Job Description
Do you want to tackle the biggest questions in finance with near infinite compute power at your fingertips?
G-Research is a leading quantitative research and technology firm, with offices in London and Dallas.
We are proud to employ some of the best people in their field and to nurture their talent in a dynamic, flexible and highly stimulating culture where world-beating ideas are cultivated and rewarded.
This is a hybrid role based in our new Dallas infrastructure hub where we work on the latest technologies in a cutting-edge environment.
The role
As G-Research's Lead Network Security Engineer, you will play a critical role in managing, implementing and optimising a hyperscale network security infrastructure.
As a technical leader, you will oversee complex security architecture initiatives, mentor peer engineers, handle escalated incident response efforts and ensure compliance with the latest security standards. Our company roadmap is centred on automation, therefore a background in automation and interest in leveraging automation is key to this role.
Key responsibilities of the role include:
- Mentoring junior and mid-level engineers, overseeing team activities and providing guidance in complex troubleshooting and architecture decisions
- Implementing and managing advanced security solutions using firewalls, proxy, system hardening, treat profile and segmentation strategies to secure the intellectual data
- Acting as a lead escalation for critical security incidents
- Developing automation playbooks, network security policies framework and consolidation, treat model and drive root cause analysis with corrective actions
- Overseeing network vulnerability assessments, penetration testing coordination and remediation planning
- Championing the integration of automated tools for infrastructure build, day two support and lifecycle management of all security infrastructure using platforms like Python, Terraform, and vendor APIs, leveraging tools such as Algosec, Tufin, Jenkins and Git
- Working closely with infrastructure, DevOps and application teams to embed security best practices throughout the technology stack
The ideal candidate will have the following skills and experience:
- Extensive experience in network engineering and security engineering, along with proven architectural experience in trusted, untrusted and DMZ environments
- Proven leadership experience in a senior or lead engineering role, with the ability to drive the team and work individually
- Strong understanding of network protocols and the OSI model, with hands-on experience in TCP/UDP-based applications, routing, switching and load balancing
- Extensive knowledge of network security technologies, including firewalls, VPNs, proxies, MACsec, IPsec, HTTPS, certificate chains, DNS, NTP, AAA, and domain-based authentication and authorisation
- Expertise with multiple security vendors, such as, Palo Alto, Fortinet, Check Point and F5
- Strong understanding of Zero Trust principles, segmentation, and secure cloud networking in AWS or Azure
- Familiarity with scripting and automation using Python, Ansible, or Terraform for example
- Certifications such as CISSP, CCIE Security, GIAC (GSEC/GCIH/GXPN), Palo Alto, Fortinet or equivalent highly preferred
- Core network with VxLAN EVPN DC architecture experience
- Experience with hybrid or multi-cloud environments
- Prior involvement in M&A technical integrations
- Background in building SOC capabilities or working with MSSPs
- Excellent written and verbal communication skills
- Firewall automation experience is beneficial
- Market-leading compensation plus annual discretionary bonus
- Lunch provided in the office (via GrubHub)
- Informal dress code and excellent work/life balance
- Excellent paid time off allowance of 25 days
- Sick days, military leave, and family and medical leave
- Generous 401(k) plan
- 16-weeks' fully paid parental leave
- Medical and Prescription, Dental, and Vision insurance
- Life and Accidental Death & Dismemberment (AD&D) insurance
- Employee Assistance and Wellness programs
- Generous relocation allowance and support
- Great selection of office snacks, and hot and cold drinks
- On-site gym and car parking
This role is employed through our US affiliate.
G-Research is committed to cultivating and preserving an inclusive work environment. We are an ideas-driven business and we place great value on diversity of experience and opinions.
We want to ensure that applicants receive a recruitment experience that enables them to perform at their best. If you have a disability or special need that requires accommodation please let us know in the relevant section
Senior Network Security Engineer
Posted 18 days ago
Job Viewed
Job Description
Dallas, TX (onsite)
Full Time
Role Summary And Responsibilities;
A Security Engineer specializing in Cisco and Juniper firewalls is responsible for designing, implementing, and maintaining robust security measures to protect network infrastructure. This role involves collaboration with various teams to support business objectives and provide technical guidance
Roles & Responsibilities:
Firewall Management:
- Configure, manage, and troubleshoot Cisco ASA and Juniper SRX firewalls
- Develop and implement firewall policies and rule sets to ensure network security
- Perform regular security assessments and vulnerability scans to identify and mitigate risks
- Implement and manage network security measures, including IPS/IDS, VPNs, and NAC
- Monitor network traffic for suspicious activity and respond to security incidents
- Ensure compliance with industry standards and regulations
- Respond to security incidents and provide on-call support as needed 1 2.
- Troubleshoot complex security issues and provide timely resolutions 1 2.
- Create and maintain comprehensive documentation for all implemented security configurations and associated troubleshooting steps
- Maintain accurate network inventory and documentation.
- Implement and maintain security best practices.
- Ensure compliance with industry standards and regulations.
- Conduct security assessments and vulnerability scans.
- Implement and manage access control policies.
- Collaboration and Communication:
- Collaborate with cross-functional teams, including system administrators, security engineers, and application developers.
- Communicate effectively with stakeholders to provide updates and resolve issues.
- Provide technical support and training to end-users.
- Work with vendors to resolve hardware and software issues.
- Strong understanding of network security principles and technologies (firewalls, VPNs, IPS/IDS, NAC).
- Proficiency in configuring and managing Cisco ASA and Juniper SRX firewalls
- Knowledge of network protocols and technologies (TCP/IP, OSPF, BGP, VLANs, etc.)
- Experience with network monitoring and management tools
- Familiarity with cloud security concepts and technologies (AWS, Azure, GCP).
- Knowledge of scripting languages like Python or Perl is a plus
- Firewall : Juniper and Cisco
- Strong analytical and problem-solving skills.
- Excellent communication and interpersonal skills.
- Ability to work independently and as part of a team.
- Strong Operation management skills.
- Ability to adapt to rapidly changing technologies.
- Bachelor's degree in computer science, Information Technology, or a related field.
- 7-10 Years of Domain Experience.
- Equivalent firewall certification would be preferred.
Diverse Lynx LLC is an Equal Employment Opportunity employer. All qualified applicants will receive due consideration for employment without any discrimination. All applicants will be evaluated solely on the basis of their ability, competence and their proven capability to perform the functions outlined in the corresponding role. We promote and support a diverse workforce across all levels in the company.
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Senior Network Security Engineer
Posted today
Job Viewed
Job Description
Do you want to tackle the biggest questions in finance with near infinite compute power at your fingertips?
G-Research is a leading quantitative research and technology firm, with offices in London and Dallas.
We are proud to employ some of the best people in their field and to nurture their talent in a dynamic, flexible and highly stimulating culture where world-beating ideas are cultivated and rewarded.
This is a hybrid role based in our new Dallas infrastructure hub where we work on the latest technologies in a cutting-edge environment.
The role
As G-Research's Lead Network Security Engineer, you will play a critical role in managing, implementing and optimising a hyperscale network security infrastructure.
As a technical leader, you will oversee complex security architecture initiatives, mentor peer engineers, handle escalated incident response efforts and ensure compliance with the latest security standards. Our company roadmap is centred on automation, therefore a background in automation and interest in leveraging automation is key to this role.
Key responsibilities of the role include:
- Mentoring junior and mid-level engineers, overseeing team activities and providing guidance in complex troubleshooting and architecture decisions
- Implementing and managing advanced security solutions using firewalls, proxy, system hardening, treat profile and segmentation strategies to secure the intellectual data
- Acting as a lead escalation for critical security incidents
- Developing automation playbooks, network security policies framework and consolidation, treat model and drive root cause analysis with corrective actions
- Overseeing network vulnerability assessments, penetration testing coordination and remediation planning
- Championing the integration of automated tools for infrastructure build, day two support and lifecycle management of all security infrastructure using platforms like Python, Terraform, and vendor APIs, leveraging tools such as Algosec, Tufin, Jenkins and Git
- Working closely with infrastructure, DevOps and application teams to embed security best practices throughout the technology stack
The ideal candidate will have the following skills and experience:
- Extensive experience in network engineering and security engineering, along with proven architectural experience in trusted, untrusted and DMZ environments
- Proven leadership experience in a senior or lead engineering role, with the ability to drive the team and work individually
- Strong understanding of network protocols and the OSI model, with hands-on experience in TCP/UDP-based applications, routing, switching and load balancing
- Extensive knowledge of network security technologies, including firewalls, VPNs, proxies, MACsec, IPsec, HTTPS, certificate chains, DNS, NTP, AAA, and domain-based authentication and authorisation
- Expertise with multiple security vendors, such as, Palo Alto, Fortinet, Check Point and F5
- Strong understanding of Zero Trust principles, segmentation, and secure cloud networking in AWS or Azure
- Familiarity with scripting and automation using Python, Ansible, or Terraform for example
- Certifications such as CISSP, CCIE Security, GIAC (GSEC/GCIH/GXPN), Palo Alto, Fortinet or equivalent highly preferred
- Core network with VxLAN EVPN DC architecture experience
- Experience with hybrid or multi-cloud environments
- Prior involvement in M&A technical integrations
- Background in building SOC capabilities or working with MSSPs
- Excellent written and verbal communication skills
- Firewall automation experience is beneficial
- Market-leading compensation plus annual discretionary bonus
- Lunch provided in the office (via GrubHub)
- Informal dress code and excellent work/life balance
- Excellent paid time off allowance of 25 days
- Sick days, military leave, and family and medical leave
- Generous 401(k) plan
- 16-weeks' fully paid parental leave
- Medical and Prescription, Dental, and Vision insurance
- Life and Accidental Death & Dismemberment (AD&D) insurance
- Employee Assistance and Wellness programs
- Generous relocation allowance and support
- Great selection of office snacks, and hot and cold drinks
- On-site gym and car parking
This role is employed through our US affiliate.
G-Research is committed to cultivating and preserving an inclusive work environment. We are an ideas-driven business and we place great value on diversity of experience and opinions.
We want to ensure that applicants receive a recruitment experience that enables them to perform at their best. If you have a disability or special need that requires accommodation please let us know in the relevant section
Senior Network Security Engineer
Posted 1 day ago
Job Viewed
Job Description
Dallas, TX (onsite)
Full Time
Role Summary And Responsibilities;
A Security Engineer specializing in Cisco and Juniper firewalls is responsible for designing, implementing, and maintaining robust security measures to protect network infrastructure. This role involves collaboration with various teams to support business objectives and provide technical guidance
Roles & Responsibilities:
Firewall Management:
- Configure, manage, and troubleshoot Cisco ASA and Juniper SRX firewalls
- Develop and implement firewall policies and rule sets to ensure network security
- Perform regular security assessments and vulnerability scans to identify and mitigate risks
- Implement and manage network security measures, including IPS/IDS, VPNs, and NAC
- Monitor network traffic for suspicious activity and respond to security incidents
- Ensure compliance with industry standards and regulations
- Respond to security incidents and provide on-call support as needed 1 2.
- Troubleshoot complex security issues and provide timely resolutions 1 2.
- Create and maintain comprehensive documentation for all implemented security configurations and associated troubleshooting steps
- Maintain accurate network inventory and documentation.
- Implement and maintain security best practices.
- Ensure compliance with industry standards and regulations.
- Conduct security assessments and vulnerability scans.
- Implement and manage access control policies.
- Collaboration and Communication:
- Collaborate with cross-functional teams, including system administrators, security engineers, and application developers.
- Communicate effectively with stakeholders to provide updates and resolve issues.
- Provide technical support and training to end-users.
- Work with vendors to resolve hardware and software issues.
- Strong understanding of network security principles and technologies (firewalls, VPNs, IPS/IDS, NAC).
- Proficiency in configuring and managing Cisco ASA and Juniper SRX firewalls
- Knowledge of network protocols and technologies (TCP/IP, OSPF, BGP, VLANs, etc.)
- Experience with network monitoring and management tools
- Familiarity with cloud security concepts and technologies (AWS, Azure, GCP).
- Knowledge of scripting languages like Python or Perl is a plus
- Firewall : Juniper and Cisco
- Strong analytical and problem-solving skills.
- Excellent communication and interpersonal skills.
- Ability to work independently and as part of a team.
- Strong Operation management skills.
- Ability to adapt to rapidly changing technologies.
- Bachelor's degree in computer science, Information Technology, or a related field.
- 7-10 Years of Domain Experience.
- Equivalent firewall certification would be preferred.
Diverse Lynx LLC is an Equal Employment Opportunity employer. All qualified applicants will receive due consideration for employment without any discrimination. All applicants will be evaluated solely on the basis of their ability, competence and their proven capability to perform the functions outlined in the corresponding role. We promote and support a diverse workforce across all levels in the company.
Senior Network Security Engineer
Posted today
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Job Description
- 8 years in Information Security Technology, including Building Security Architecture/Design for Infrastructure, Cloud, and Apps, Cloud Architecture, and Cloud Security Solutions;
- 4 years in Networking, including Routers and Switches, Internet Routing, Network Attack Vectors, Wide Area Networks (WAN), and Network Access Controls;
- 4 years in Firewalls (Fortinet or Cisco FTD Firewalls), including Configuration, Policy Management, Auditing, and Monitoring; and
- 2 years with Azure and AWS Cloud Architecture and Security; Site-to-Site and Remote Access VPNs; and Endpoint Protection (EDR) and Data Loss Prevention (DLP) Technologies.
REFER TO: Job code KSHH-W
#LI-DNI
#xindREQUIREMENTS: Bachelor's or foreign equivalent degree in Computer Science, Information Systems, Computer/Electronic Engineering, Cybersecurity, or a related field, and 8 years of experience in the job offered or as a Network Engineer, Cloud Security Engineer, IT Security Analyst, Software Engineer, or in a related/similar position. Experience therein to include the following:
- 8 years in Information Security Technology, including Building Security Architecture/Design for Infrastructure, Cloud, and Apps, Cloud Architecture, and Cloud Security Solutions;
- 4 years in Networking, including Routers and Switches, Internet Routing, Network Attack Vectors, Wide Area Networks (WAN), and Network Access Controls;
- 4 years in Firewalls (Fortinet or Cisco FTD Firewalls), including Configuration, Policy Management, Auditing, and Monitoring; and
- 2 years with Azure and AWS Cloud Architecture and Security; Site-to-Site and Remote Access VPNs; and Endpoint Protection (EDR) and Data Loss Prevention (DLP) Technologies.
RATE OF PAY: $144,789-$193,107 /year
REFER TO: Job code KSHH-I.
#LI-DNI
#xindNotice of Filing of Application for Alien Employment Certification
This Notice is being provided as a result of the filing of an application for permanent alien labor certification for the position shown below. Any person may provide documentary evidence bearing on the application to the Certifying Officer, U.S. Department of Labor, Employment and Training Administration, Office of Foreign Labor Certification
200 Constitution Avenue, NW, Room N-5311, Washington, DC 20210, Telephone: ( , Fax: (
EMPLOYER: Overhead Door Corporation
JOB TITLE: Senior Security Network Engineer
LOCATION: 2501 S. State Hwy 121 Business, Suite 200, Lewisville, TX 75067
DUTIES: Report to the Director of Information Security and Compliance. Work on-site at Overhead Door's Corporate HQ. Manage day-to-day operations of on-premise and cloud security. Administer all security systems and tools. Identify, investigate, and resolve security incidents. Assist in designing security systems and strategy. Participate in creating and maintaining policies, standards, baselines, guidelines, and procedures. Ensure detail and process-oriented work. Demonstrate problem-solving abilities. Implement and oversee cloud security solutions and architectural designs (Azure/AWS). Manage email/web filtering technologies. Conduct risk assessments and apply security principles/best practices. Perform vulnerability scanning, penetration testing, and application testing. Apply emerging technologies to develop secure solutions across diverse network/communication protocols. Utilize frameworks such as NIST and CIS for security compliance. Architect, design, and implement large-scale WAN architectures with a focus on network security. Manage firewalls (Cisco FTD, FortiGate), IPS/IDS devices, routing, and switching. Implement and manage endpoint detection and response (EDR) and DLP technologies. Configure and audit VPN technologies, including site-to-site and remote access VPNs. Use firewall security orchestration and automation tools. Troubleshoot and resolve complex security issues.EMPLOYER: Overhead Door Corporation
JOB TITLE: Senior Security Network Engineer
LOCATION: Lewisville, TX
DUTIES: Report to the Director of Information Security and Compliance. Work on-site at Overhead Door's Corporate HQ. Manage day-to-day operations of on-premise and cloud security. Administer all security systems and tools. Identify, investigate, and resolve security incidents. Assist in designing security systems and strategy. Participate in creating and maintaining policies, standards, baselines, guidelines, and procedures. Ensure detail and process-oriented work. Demonstrate problem-solving abilities. Implement and oversee cloud security solutions and architectural designs (Azure/AWS). Manage email/web filtering technologies. Conduct risk assessments and apply security principles/best practices. Perform vulnerability scanning, penetration testing, and application testing. Apply emerging technologies to develop secure solutions across diverse network/communication protocols. Utilize frameworks such as NIST and CIS for security compliance. Architect, design, and implement large-scale WAN architectures with a focus on network security. Manage firewalls (Cisco FTD, FortiGate), IPS/IDS devices, routing, and switching. Implement and manage endpoint detection and response (EDR) and DLP technologies. Configure and audit VPN technologies, including site-to-site and remote access VPNs. Use firewall security orchestration and automation tools. Troubleshoot and resolve complex security issues.