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About the job Cisco Firewall & Network Security Engineer
Top Secret Clearance Jobs is dedicated to helping those with the most exclusive security clearance find their next career opportunity and get interviews within 48 hours.

Job Description: Type of Requisition: Regular

Clearance Level Must Currently Possess: Top Secret/SCI

Clearance Level Must Be Able To Obtain: Top Secret/SCI

Suitability: Public Trust/Other Required: None

Job Family: Information Security

Skills: Job Qualifications: Cisco FirePOWER, Firewalls, Gigamon, Snort

Certifications: Experience: 10 + years of related experience

US Citizenship Required: Yes

Job Description: Information Security Analyst Sr Advisor

Please take this opportunity to join one of GDIT's fastest long-standing growing programs! US Battlefield Information Collection and Exploitation System eXtended (US BICES-X) is a cutting edge program supporting DoD intelligence information sharing on current and emerging global threats to mission and coalition partners and emerging nations. With an internationally dispersed team supporting each combatant command, the US BICES-X Team is in direct support of the war fighter and their missions.

We are seeking a creative and driven professional with a passion for solving real-world issues on a cross-functional, fast-paced team. You will be part of a dynamic team that is delivering a business driven Enterprise Network to support BICES Global Enterprise Mission Support Services increasing performance, security, scalability, and stability while reducing costs and complexity resulting in increased supportability.

Responsibilities:

• Performs Defensive Cyber Operations (DCO) activities (formally known as Cyber Network Defense) for a large Program; coordinates with government Program staff, USAF, and other government agencies to assist in the creation, dissemination, direction, and auditing of program policy, standards, and operating procedures.
• This position will be working within our Defensive Cyber Operations-Infrastructure environment. The primary duties of this role include Implementation and Administration of Security Ops, utilizing Cisco ASA Firewalls, Cisco Firepower/Secure Firewall Next-Gen Firewalls & Next-Gen IPS, Gigamon Traffic Visibility devices, and Cisco ISE.
• As a member of the DCO Firewall Team, supports the program with routine and often high-level troubleshooting for the enterprise network and all the systems, programs, and traffic that traverse the network. The enterprise network consists primarily of Cisco network infrastructure utilizing such technologies such as 802.1x/MAB Network Access (NAC), TACACS+, EIGRP/OSPF/BGP Routing, BFD, Site-to-Site VPNs, as well as various other Campus, WAN and Data Center network technologies.
• Conduct network and system audits for vulnerabilities using Security Technical Implementation Guides (STIGs), Security Requirements Guides (SRGs), ACAS vulnerability scans, and DISA SCAP. Modify device configurations and practices to comply with all directives and mitigate findings for associated network operating systems.
• Uses defensive measures and information collected from a variety of sources to identify, analyze, and report events that occur or might occur within the network to protect information, information systems, and networks from threats.
• Utilize available resources to conduct Cybersecurity activities, and report to senior GDIT and government personnel on overall program security posture.
• Provides guidance and work leadership to less-experienced technical staff members.
• Maintains current knowledge of relevant technology as assigned.
• Participates in special projects as required.

• 10+ years of experience required.
• Must possess and maintain a TS/SCI clearance.
• BA/BS degree required or equivalent work experience.
• Must meet DOD 8570.01M requirements for IAT Level II & CSSP-Infrastructure Support.
• Requires CCNA or better for Firewall Administration.

• Proficiency with Next-Gen Firewalls/Next-Gen IPS (Cisco Firepower/Secure Firewall).
• Experience with Snort Signatures & IPS technology.
• Experience with Gigamon Traffic Visibility devices and technology.
• Experience/Familiarity with Splunk or similar Security Incident and Event Management (SIEM) solutions.
• Experience/Familiarity with Linux operating system is a plus.
• Experience/Familiarity with Cisco Identity Services Engine (ISE).
• The ability to work and set priorities on multiple projects/tasks at once and operate in a dynamic, fast-paced team-oriented environment.
• The work is typically performed in an office environment, which requires normal safety precautions; work may require some physical effort in the handling of light materials, boxes, or equipment.

Interview : Video

Visa : USC, GC, GC EAD, H4, L2

This is hybrid from day-1 ( Need local candidates )

Description :
Key Responsibilities:

• Design, implement, and optimize ultra-low latency (ULL) network solutions to support high-frequency trading.
• Configure and manage high-performance Cisco networking environments with a focus on low-latency performance.
• Troubleshoot complex network issues, perform deep packet analysis, and optimize routing/switching configurations.
• Deploy and maintain multicast, QoS, and network automation strategies for latency-sensitive applications.
• Monitor, analyze, and fine-tune network performance using tools such as Corvil, Wireshark, and IXIA .
• Collaborate with trading teams, infrastructure teams, and third-party vendors to enhance network efficiency.
• Implement security best practices and ensure compliance with financial industry standards.
• Document network designs, configurations, and troubleshooting procedures for internal knowledge sharing.
• Required Skills & Experience:
• 7-10 years of experience in network engineering with a focus on ultra-low latency environments .
• CCIE certification (Enterprise, Data Center, or Service Provider) required.
• Expertise in Cisco Nexus, Arista, and Juniper networking technologies.
• In-depth knowledge of low-latency routing, switching, multicast, and TCP/IP protocols.
• Experience optimizing Layer 1-3 networking for electronic trading environments.
• Hands-on experience with Corvil, SolarWinds, or similar network performance tools .
• Proficiency in network automation (Python, Ansible, Terraform) .
• Strong analytical, troubleshooting, and problem-solving skills in high-pressure environments.

• Experience in high-frequency trading (HFT), financial markets, or electronic trading infrastructure .
• Knowledge of Linux-based network performance tuning .
• Familiarity with FPGA-based networking and ultra-low latency hardware solutions .
• Prior experience in financial services or large-scale enterprise networking .

• Opening for a Cisco Engineer within its Process Control Systems group located in Granite City, IL.
• This high-profile role combines the challenges of project management and information architecture working within a highly skilled team.
• The successful candidate will be responsible for developing and maintaining Software and Hardware of Process Control systems in all areas of the plant.
• Plant Process Control systems routinely consist of Allen-Bradley Programmable Logic Controllers communicating to real-time applications, models and databases hosted on Open VMS and Windows Servers.
• Work is done in accordance with Safety and Quality Standard Operating Procedures.
• Due to the nature of our business, our facilities operate 24 hours/day, 7 days/week, 365 days/year.
• This is a normally 40 hour/week position, working day shift Monday through Friday with little to no travel.
• However, after hour support rotation is shared among team members and is required.
• Therefore, this position may require occasional work on off-hours, weekends and/or holidays.

• Analyzing production processes and user requirements for system development, Detail design of system specification including hardware and software requirements, Coding, testing and implementation of applications / systems and user training,
• Supporting the critical production systems in a timely fashion; troubleshooting problems and maximize operating efficiencies with minimal interruption, Project Management: coordinate the design and development efforts of a small project team.

• Intermediate knowledge in Cisco network technology. Proven ability to design, configure, support and troubleshoot OT networks.

• Intermediate knowledge in high-level C#, .NET, and/or FORTRAN programming, SQL Server and/or OpenVMS.

• Bachelor Degree or 4 years equivalent experience in Computer or Electrical field.
• Critical Competencies for Success: Self-motivated yet works well in a team environment. Effective oral & written communications. Logical/analytical thought process.

Title: Cisco Engineer

Location: St. Louis, MO

Duration: 9 months (Contract) with extensions

Rate: $open

Requirements

QUALIFICATIONS

• Bachelor’s Degree
• Cisco Certifications (Cisco CCNP Route/Switch)
• Experience with Multi-Protocol Label Switching (MPLS)
• Experience implementing IPv6.
• Strong project management skills.

ESSENTIAL FUNCTIONS

• Installs current network operating system on new or existing network devices and/or installs communication equipment including routers, switches and firewalls
• Installs software on networking devices.
• Provides phone support to employees or customers relative to networking technology.
• Analyzes network topologies to determine potential issues and makes suggestions for recommended changes.
• Assists with the preparation of network assessments and certifications.
• Additional essential functions for network installations at a customer site:
• Installs current network operating server software on new or existing server-class hardware and/or installs communication equipment including routers, terminal servers, switches and firewalls.
• Installs supporting applications and peripherals on the above mentioned servers including tape backup hardware and software, email software, anti-virus software, etc. and/or implement technologies.
• Installs user workstation hardware, operating software and various application software and/or pre-configured equipment.
• Configures user IDs and customer-specific settings on servers and transfers data from the old environment to the new environment.
• Corresponds with customer and other divisions within the company to insure all customer concerns and issues are resolved in a timely manner.
• Assists Sales by analyzing customer requirements and recommending appropriate products and services.
• Prepares statements of work relative to upcoming network installations and general preparations for installations.

Benefits

Note: If interested please send your updated resume and include your salary requirement along with your contact details with a suitable time when we can reach you. If you know of anyone in your sphere of contacts, who would be a perfect match for this job then, we would appreciate if you can forward this posting to them with a copy to us.

We look forward to hearing from you at the earliest!

Position Title: Cisco Engineer Clearance: Desired, not required Location: Huntsville, AL/Remote Salary*: 140,000+ *Dependent upon qualifications Summit 7 is here to rise above the ordinary. The work we do here goes far beyond day-to-day projects - it further protects the US defense industrial base from cyber threats, fosters thought leadership, and creates growth opportunities. Our support staff, sales team and technicians are all coming together to make a difference. We also recognize that you're a person with life beyond work, that's why we invest in meaningful health and welfare benefits such as: Excellent health/dental benefits from BCBS See into the future with our luxurious VSP vision benefits Prepare for the long-haul courtesy of our 401k with company matching Unlimited mobile phone plan 10 days' vacation, 7 days sick time Bonuses and salary increase potential via our certifications plan We do cool work here, defying expectations by simply being who we are - each of us makes an impact. Essential Functions Responsible for designing, implementing, and automating enterprise network infrastructure using Cisco technologies, network automation tools, and modern DevOps practices. The ideal candidate will have hands-on experience with Cisco platforms, network security, infrastructure as code (IaC), and the ability to optimize and secure network operations across cloud and on-prem environments. Duties and Responsibilities Design, implement, and maintain enterprise network solutions using Cisco routers, switches, firewalls, and wireless technologies. Collaborate with cross-functional teams to ensure network solutions align with security, compliance, and performance standards. Develop network automation scripts and workflows using Python, Ansible, or other automation tools to streamline device provisioning, configuration, and management. Leverage infrastructure as code (IaC) tools such as Ansible, Terraform, and Git to maintain version-controlled, repeatable network deployments. Architect and support secure, scalable cloud networking environments across Azure and hybrid infrastructures. Deploy and manage SD-WAN solutions to optimize network performance, resiliency, and cost-efficiency across distributed sites. Ensure network architectures and configurations meet compliance requirements defined in NIST SP 800-171 and 800-53. Integrate network infrastructure with ServiceNow and other ITSM tools to support automated change management and incident response processes. Monitor network performance, troubleshoot connectivity issues, and proactively address system reliability and latency concerns. Implement and manage secure connectivity solutions including VPNs, ACLs, VLAN segmentation, and firewall rules. Participate in the development of CI/CD pipelines for infrastructure updates and configuration changes. Document network designs, standards, and operational procedures for team knowledge sharing and audit readiness. Qualifications - Required Bachelor's degree in Information Technology, a related field, or equivalent experience. Proven experience as a Cisco Network Engineer or similar role. Deep understanding of Cisco technologies, including routers, switches, firewalls, and wireless systems. Experience configuring and managing enterprise network protocols (e.g., BGP, OSPF, EIGRP, VLANs, STP). Familiarity with Microsoft 365 and Azure networking components, including hybrid connectivity and VPNs. Strong understanding of network security principles, including firewalls, VPNs, access control lists (ACLs), and intrusion detection/prevention systems (IDS/IPS). Solid understanding of network security principles and hands-on experience with firewalls, NAC, and IDS/IPS. Proficiency in scripting languages such as Python, PowerShell, or Bash for network automation and tooling. Experience with network automation and CI/CD tools such as Ansible, Terraform, Azure DevOps, or GitHub Actions. Familiarity with ServiceNow for ITSM and operational workflows related to network infrastructure. Proficiency in version control systems, especially Git and GitHub Enterprise, for configuration management. Strong analytical and troubleshooting skills with attention to detail. Excellent verbal and written communication skills, with the ability to collaborate across cross-functional teams. Understanding of network and security best practices. Excellent problem-solving skills and attention to detail. Strong communication and collaboration skills. CCIE certification. Qualifications - Optional/Desired Relevant certifications such as Cisco CCNP, CCIE, or Cisco Certified CyberOps Associate; additional certifications like Microsoft Certified: Azure Network Engineer Associate or ServiceNow Certified Implementation Specialist are a plus. Experience with automated network testing and validation tools (e.g., Batfish, Cisco NSO, or custom Python-based test frameworks). Knowledge of ITIL processes and best practices, particularly in incident, change, and problem management related to network operations. Familiarity with network monitoring and logging tools such as Cisco DNA Center, SolarWinds, Splunk, or Azure Monitor. Experience working in or supporting Government Community Cloud (GCC, GCC High, or DoD) environments. Understanding of compliance frameworks such as NIST SP 800-171 and SP 800-53, with experience applying network controls in regulated environments. Familiarity with monitoring and logging tools such as Azure Monitor, Log Analytics, or Splunk. Working knowledge of containerized environments (e.g., Docker) and how they integrate with enterprise networks. Summit 7 Systems is an equal opportunity/ affirmative action employer and an alcohol and drug free workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. Summit 7 Systems requires background investigations. Any offer of employment is contingent upon the results of a reference/background check. We are a drug and alcohol-free workplace and require pre-employment drug sc reening. #J-18808-Ljbffr

Network Security Engineer - Cisco, Fortinet & Zscaler

Denton , Texas

Hybrid

Contract

$55/hr - $65/hr

This global company delivers complete solutions for processing, packaging, and distributing food products, with a focus on efficiency, sustainability, and gentle product handling. They are currently looking for a Network Security Engineer to join their team and support their advanced infrastructure and security operations.

The ideal candidate is a hands-on engineer with strong experience in Cisco, Fortinet, SD-WAN, Zscaler, and ITSM processes. This is a great chance to join a global team, expand your network security skills, and work with cutting-edge tools in a balanced, no-travel environment.

This is a 12-month contract-to-hire opportunity with a hybrid schedule 3 days onsite in the Denton, TX area and 2 days remote.

Required Skills & Experience

• Strong knowledge of TCP/IP, BGP, Cisco routers and switches, Spanning Tree, and VTP

• Proficient in Cisco Firewalls, IDS, Firepower Management Console

• Experience with Fortinet FortiGate firewalls and FortiManager

• Working knowledge of SD-WAN, Dynamic Multipoint VPN

• Familiar with Zscaler (Private and Internet Access), Infoblox DHCP/DNS/IP management

• Experience with Cisco ISE, Prime, DNAC, and wireless controllers (IOS and AireOS)

• Proficient in using ServiceNow and understanding of ITIL processes (Incident, Change, Problem, Knowledge)

• Strong troubleshooting, incident response, and documentation skills

• Minimum of 3 years in a similar role

Desired Skills & Experience

• Familiarity with scripting (Python preferred)

• Strong communication and interpersonal skills

• Able to work across time zones and on holidays if needed

• Highly collaborative, proactive, and service-minded

• Strong work ethic and ability to perform under pressure

What You Will Be Doing

Tech Breakdown

• 60% Cisco Meraki hardware, switches, wireless

• 40% Microsoft Azure, Office 365, SharePoint

Daily Responsibilities

• 70% Hands-on technical tasks (monitoring, troubleshooting, improving operations)

• 20% Security and compliance-related duties

• 10% Team collaboration and documentation

The Offer

• Eligible for bonus or commission

• Benefits include:

• Medical, Dental, and Vision Insurance

• Paid vacation time

• Stock options

Applicants must be currently authorized to work in the US on a full-time basis now and in the future.

You will receive the following benefits:

• Medical Insurance - Four medical plans to choose from for you and your family

• Dental & Orthodontia Benefits

• Vision Benefits

• Health Savings Account (HSA)

• Health and Dependent Care Flexible Spending Accounts

• Voluntary Life Insurance, Long-Term & Short-Term Disability Insurance

• Hospital Indemnity Insurance

• 401(k) including match with pre and post-tax options

• Paid Sick Time Leave

• Legal and Identity Protection Plans

• Pre-tax Commuter Benefit

• 529 College Saver Plan

Motion Recruitment Partners (MRP) is an Equal Opportunity Employer. All applicants must be currently authorized to work on a full-time basis in the country for which they are applying, and no sponsorship is currently available. Employment is subject to the successful completion of a pre-employment screening. Accommodation will be provided in all parts of the hiring process as required under MRP's Employment Accommodation policy. Applicants need to make their needs known in advance.

Posted by: Zoe Zinser

Specialization:

• Network Security

• Network Engineering

• Troubleshoot and maintain Cisco routing and switching (R/S) infrastructure, focusing on Layer 2 and routing protocols.
• Manage and optimize Palo Alto firewalls using Panorama.
• Perform Cisco-to-Palo Alto migrations, ensuring minimal downtime and optimal configurations.
• Work with OSPF and MPLS protocols to maintain a robust and efficient network.
• Collaborate on legacy infrastructure transitions and provide expertise for policy optimization on Palo systems.
• Operate in a hybrid work environment, primarily onsite (4-5 days a week).
• Coordinate with remote team members to ensure network consistency and performance.

• Proven experience with Cisco routing and switching (R/S) technologies.
• Strong understanding of Layer 2 networking and routing protocols.
• Proficiency in Palo Alto firewalls and Panorama management.
• Hands-on experience with Cisco-to-Palo Alto migrations and legacy network systems.
• Familiarity with OSPF, MPLS, and other networking protocols.
• Ability to work in a hybrid setting with flexibility to be onsite 4-5 days a week.
• Strong troubleshooting and problem-solving skills with a detail-oriented mindset.

• Experience with policy optimization and fine-tuning firewall configurations.
• Strong interpersonal skills and the ability to work both independently and in a team setting.
• Familiarity with large campus environments and hybrid work structures.

• Competitive salary and benefits package.
• Opportunity to work on innovative projects in a collaborative environment.
• Professional growth and development within a technology-forward company.

This global company delivers complete solutions for processing, packaging, and distributing food products, with a focus on efficiency, sustainability, and gentle product handling. They are currently looking for a Network Security Engineer to join their team and support their advanced infrastructure and security operations.

The ideal candidate is a hands-on engineer with strong experience in Cisco, Fortinet, SD-WAN, Zscaler, and ITSM processes. This is a great chance to join a global team, expand your network security skills, and work with cutting-edge tools in a balanced, no-travel environment.

This is a 12-month contract-to-hire opportunity with a hybrid schedule 3 days onsite in the Denton, TX area and 2 days remote.

Required Skills & Experience

• Strong knowledge of TCP/IP, BGP, Cisco routers and switches, Spanning Tree, and VTP
• Proficient in Cisco Firewalls, IDS, Firepower Management Console
• Experience with Fortinet FortiGate firewalls and FortiManager
• Working knowledge of SD-WAN, Dynamic Multipoint VPN
• Familiar with Zscaler (Private and Internet Access), Infoblox DHCP/DNS/IP management
• Experience with Cisco ISE, Prime, DNAC, and wireless controllers (IOS and AireOS)
• Proficient in using ServiceNow and understanding of ITIL processes (Incident, Change, Problem, Knowledge)
• Strong troubleshooting, incident response, and documentation skills
• Minimum of 3 years in a similar role

• Familiarity with scripting (Python preferred)
• Strong communication and interpersonal skills
• Able to work across time zones and on holidays if needed
• Highly collaborative, proactive, and service-minded
• Strong work ethic and ability to perform under pressure

• 60% Cisco Meraki hardware, switches, wireless
• 40% Microsoft Azure, Office 365, SharePoint

• 70% Hands-on technical tasks (monitoring, troubleshooting, improving operations)
• 20% Security and compliance-related duties
• 10% Team collaboration and documentation

• Eligible for bonus or commission
• Benefits include:
• Medical, Dental, and Vision Insurance
• Paid vacation time
• Stock options

• Medical Insurance - Four medical plans to choose from for you and your family
• Dental & Orthodontia Benefits
• Vision Benefits
• Health Savings Account (HSA)
• Health and Dependent Care Flexible Spending Accounts
• Voluntary Life Insurance, Long-Term & Short-Term Disability Insurance
• Hospital Indemnity Insurance
• 401(k) including match with pre and post-tax options
• Paid Sick Time Leave
• Legal and Identity Protection Plans
• Pre-tax Commuter Benefit
• 529 College Saver Plan

• Network Security
• Network Engineering