175 Network Administration jobs in Dallas County

Senior Network Security Engineer

Dallas, TX (Day 1 onsite)

Full Time

Salary - $100k-$120k/annum

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

ROLE 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
Network Security

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
Incident Handling:

Respond to security incidents and provide on-call support as needed 1 2.
Troubleshoot complex security issues and provide timely resolutions 1 2.
Documentation:

Create and maintain comprehensive documentation for all implemented security configurations and associated troubleshooting steps
Maintain accurate network inventory and documentation.
Security and Compliance:

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.

REQUIRED TECHNICAL QUALIFICATION

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
OEM :

Firewall : Juniper and Cisco
Soft Skills:

Strong analytical and problem-solving skills.
Excellent communication and interpersonal skills.
bility to work independently and as part of a team.
Strong Operation management skills.
bility to adapt to rapidly changing technologies.
EDUCATION REQUIREMENTS

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.

Job Description:

This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

AT&T will not hire any applicants for this position who require employer sponsorship now or in the future.

Join AT&T and reimagine the communications and technologies that connect the world. Our Consumer Technology experience team delivers innovative and reliable technology solutions to power differentiated, simplified customer experiences. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won't just imagine the future-you'll create it.

As a Lead Network Technology Support, you will be part of the Mobility IP Ops Lifecycle team who provides fault and performance monitoring for all Mobility Layer 3, Load Balancers, Text Messaging (SMS), Mult-Media-Messaging (MMS), Mission Critical Push-To-Talk (MCPTT), Location Based Services (LBS), Over-The-Air Activations (OTA), Evolved Packet Core (EPC) Core NEO consumer LTE, Enterprise EPC LTE, FirstNet EPC LTE, Cricket EPC LTE, 5G EPC consumer, 5G EPC FirstNet, and Standalone 5G EPC network elements.

Key Roles and Responsibilities:

• FAULT MANAGEMENT

• Technical support and troubleshoot network platform issues including alarm and KPI monitoring (proactive and reactive)

• Investigation/diagnose network issues, triage and communicate event status and coordinate root cause analysis; mitigate/remediate complex technology fault conditions that span multiple production platforms and environments

• Implement restoration of service; and may involve the implementation of vendor/IT fixes or design changes

• Solves Tier 2 issues independently and works with additional support teams and vendors as needed

• Proactively monitor and maintain system configurations to achieve designed performance and reliability levels using key performance indicators (KPIs)

• TECHNOLOGY INSERTION AND PRODUCT DEVELOPMENT

• Works closely with business partners in a DevOps methodology partnering with Labs, product development, and engineering teams to create process documentation, methods, procedures, and guidelines for current network planning, capacity management and use/test cases during new technology instantiation

• Participates in collaboration sessions with vendors on product capabilities and improvements

• Reviews and interprets technical documentation and vendor specs for inclusion/adaptation into database templates

• May interact with customers virtually or in person to outline or recommend technical solutions for their business or explaining root cause of a network event

• Collaborate with upstream and downstream partners (hardware or software vendors, CTO, engineering, product development, provisioning, etc.) to design and implement custom solutions for internal and external customers and conduct change management procedures

• Develop applications, scripts, and act as system DBA (database administration), building websites, web applications, and internal messaging BOTs while maintaining other key critical software/data platforms

• Knowledge of and the ability to use tools and techniques for analyzing and documenting logical relationships among data, processes or events translating business problems into insights

• AUTOMATION

• Perform automation functions through scripting and programming to bring efficiency to support and monitoring functions

• Perform data analysis on platform and/or organizational metrics using industry standard analytics and data presentation tools

Required Experience:

• 5-8 years' experience; Technical Career Pathway (TCP) role

Required Qualifications:

• Mobility Network troubleshooting, maintenance, implementations

• Strong troubleshooting skills

• Knowledge of mobility architecture

• Morning shift, with rotational on-call/weekend

Desired Education:

• Bachelor's degree in Math, Science, Engineering, Computer Sciences or Operations preferred

Desired Qualifications:

• Knowledge of Network Planning, Engineering, Construction and Mobility architecture

• Knowledge of cloud applications/networks, including OpenStack, VMware, Azure and Kubernetes

• Scripting knowledge such as Ansible and Python

• Certifications desired but not necessary (CCNA, CCNP, JCNIA, JCNIP)

• Excellent working knowledge of Cisco IOS, NX0S, Junos, F5 BIGIP(LTM/GTM) and F5VvE BIGIP

• A foundational understanding of SDN networks understanding concepts of Virtual NFS, Juniper Contrail, and spine/leaf architecture

• Technical writing skills

Supervisory: No

Environmental Requirements:

This position may be responsible for contributing to ATT compliance with environmental laws and regulations as applicable to its job function. This may include, but is not limited to, work related to fuel tanks, emergency and stand-by generators, boilers, hazardous waste, hazardous materials, batteries, manholes and vaults, water wells, linear and other construction projects, water discharge, or air emissions.

Our Lead Network Technology Support, earns between $106,100 - $78,200 annually. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.

Joining our team comes with amazing perks and benefits:

• Medical/Dental/Vision coverage

• 401(k) plan

• Tuition reimbursement program

• Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)

• Paid Parental Leave

• Paid Caregiver Leave

• Additional sick leave beyond what state and local law require may be available but is unprotected

• Adoption Reimbursement

• Disability Benefits (short term and long term)

• Life and Accidental Death Insurance

• Supplemental benefit programs: critical illness/accident hospital indemnity/group legal

• Employee Assistance Programs (EAP)

• Extensive employee wellness programs

• Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

AT&T is leading the way to the future - for customers, businesses, and the industry. We're developing new technologies to make it easier for our customers to stay connected to their world. Together, we've built a premier integrated communications and entertainment company and an amazing place to work and grow. Team up with industry innovators every time you walk into work, creating the world you always imagined.

Ready to #transformdigital with us? Apply now!

#LI-Onsite - Full-time office role

Weekly Hours:

40

Time Type:

Regular

Location:

Bothell, Washington

Salary Range:

106,100.00 - 178,200.00

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws

We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status

Primary Skills: Technical expertise and hands-on experience on Netscaler ADCs to manage and troubleshoot load balancing, application delivery and security solutions.

Experience: L3: 12+ years

Required Skills:

Expertise in Netscaler Client products including Netscaler MPX, SDX, VPX, CPX and BLX

Ability to manage Netscaler in various environments.

Handson knowledge of Netscaler Application Delivery Controller (Client)

Understanding of OSI Layer 3/4 and Layer 7 load balancing techniques.

Familiarity with configuring persistence methods.

Setting up virtual servers, services and service groups to manage traffic and backend servers

Configuration of SSL/TLS offloading and managing digital certificates

Implementing GSLB and configuring ADNS (authoritative DNS)

Deployment of HA pairs using HA-INC or floating IP

Managing redundant Netscaler appliances in active-passive or active-active modes

Mitigating DDoS attacks by leveraging Netscaler's traffic management capabilities

Configuring experience in Netscaler AppFirewall is preferred.

Integrating Netscaler with other security appliances like Cisco ASA, Palo Alto and Checkpoint FWs

Experience with analyzing Netscaler logs and generating reports on traffic patterns, events and server health etc. Generating reports for compliance with HIPAA

Familiarity with MPLS & WAN communication technology like Internet VPN, SSL VPN.

Knowledge of Load Balancer, WAN Optimizer and security devices is an additional advantage.

Familiarity with ITIL Framework concepts such as Incident, Change, and Problem Management.

Ability to meet deadlines and work well under pressure.

Flexibility for long working hours and readiness to work in 24x7 rotational shifts and weekends.

Excellent interpersonal skills and effective communication at all levels.

Ability to work alone as an individual contributor and as a participant in a team environment.

Preferred Certifications: CCA-N, CCP-N, CCE-N

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.