Senior Network Administrator - TS/SCI with CI Poly - Chantilly, VA

Posted 4 Days Ago
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Chantilly, VA, USA
In-Office
175K-230K Annually
Senior level
Information Technology • Consulting • Cybersecurity • Infrastructure as a Service (IaaS)
The Role
Designs, configures, troubleshoots, and maintains complex Layer 2/3 data center networks using BGP, VXLAN, Spine-Leaf fabrics, MCLAG, LACP, and RoCEv2. Supports high-performance and AI-focused workloads, network installations, upgrades, testing, documentation, and incident resolution. Provides technical guidance to junior staff and collaborates with cross-functional teams. The role is onsite five days per week, includes up to 20% domestic and international travel, and requires an active TS/SCI clearance with CI polygraph and IAM Level II certification.
Summary Generated by Built In

Senior Network Administrator

Location: McLean, VA (with an opportunity to work from the Chantilly, VA location by the end of the year)
Work Arrangement: Onsite, 5 days per week
Travel: Up to 20%
Clearance: Active TS/SCI with Counterintelligence (CI) Polygraph
Certification Requirement: Current IAM Level II certification to satisfy DoD 8570 IAT requirements
Salary: $175,000–$230,000

Key Responsibilities

  • Design, configure, troubleshoot, and maintain cutting-edge and complex Layer 2/3 data center architectures using BGP, ECMP, VXLAN, MCLAG, Spine-Leaf topologies, RoCEv2, and related technologies.
  • Collaborate with cross-functional teams to understand business requirements and translate them into effective network solutions.
  • Troubleshoot complex network issues and help drive incidents through resolution.
  • Provide expert technical guidance and support to junior team members, contributing to their professional growth and development.
  • Participate in network installations, upgrades, implementations, testing, and operational improvement initiatives.
  • Contribute to the documentation of network infrastructure designs, configurations, and operational procedures.
  • Stay current on networking trends, technologies, and best practices and proactively expand technical expertise.
  • Support the design, implementation, and optimization of networking infrastructure supporting AI and other demanding workloads.
  • Travel up to 20% as required to perform on-site installations, maintenance, troubleshooting, and operational support at customer sites or data centers.

Required Qualifications

  • Proven experience designing, configuring, and managing complex BGP, VXLAN, and Layer 2/3 data center architectures.
  • Expertise in designing and troubleshooting complex Layer 2/3 network topologies.
  • Experience with redundancy protocols such as MCLAG (Multi-Chassis Link Aggregation Group) or LACP.
  • Experience with Spine-Leaf data center fabrics, including architecture design and implementation.
  • Ability and willingness to develop and maintain expertise in RDMA over Converged Ethernet (RoCEv2) supporting ultra-high-speed data transfers.
  • Strong problem-solving skills, attention to detail, and commitment to quality work.
  • Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.
  • Ability to stay current with industry trends and technology advancements.
  • Ability and willingness to travel up to 20% domestically and internationally.
  • Active TS/SCI clearance with Counterintelligence (CI) Polygraph.
  • Current IAM Level II certification to satisfy DoD 8570 IAT requirements.

Preferred Qualifications

  • Experience with Linux-based Network Operating Systems (NOS).
  • Experience mentoring or providing technical guidance to junior network professionals.

Experience supporting high-performance or AI-focused data center environments.


Requirements
  • Proven experience designing, configuring, and managing complex BGP, VXLAN, and Layer 2/3 data center architectures.
  • Expertise in designing and troubleshooting complex Layer 2/3 network topologies.
  • Experience with redundancy protocols such as MCLAG (Multi-Chassis Link Aggregation Group) or LACP.
  • Experience with Spine-Leaf data center fabrics, including architecture design and implementation.
  • Ability and willingness to develop and maintain expertise in RDMA over Converged Ethernet (RoCEv2) supporting ultra-high-speed data transfers.
  • Strong problem-solving skills, attention to detail, and commitment to quality work.
  • Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.
  • Ability to stay current with industry trends and technology advancements.
  • Ability and willingness to travel up to 20% domestically and internationally.
  • Active TS/SCI clearance with Counterintelligence (CI) Polygraph.
  • Current IAM Level II certification to satisfy DoD 8570 IAT requirements.

Preferred Qualifications

  • Experience with Linux-based Network Operating Systems (NOS).
  • Experience mentoring or providing technical guidance to junior network professionals.
  • Experience supporting high-performance or AI-focused data center environments.

Benefits

Our comprehensive benefits package for full-time salaried employees is effective immediately upon the start date. Benefits include comprehensive PPO medical coverage with access to a Health Savings Account (HSA) option, a vision plan, and dental insurance with the base dental plan option paid for by PGTEK. Life Insurance, Short and Long-Term disability, and Critical Illness insurance have premiums covered.  Additionally, PGTEK offers a matching 401(k) plan and a discount on pet insurance through ASPCA Pet Insurance.   An Employee Assistance Program is available at no cost to all employees.  PGTEK offers a generous amount of PTO and Holidays, and an Education Assistance Program is available after 12 months of employment.

ABOUT PGTEK:

PGTEK is a true consulting organization dedicated to helping clients achieve their business and technology objectives utilizing our decades of experience and business relationships. PGTEK invests in the educational advancements of our staff by providing the necessary resources to complete Professional and Business Certifications. Our company is our people, and we treat them like family.

EOE, including disability/veterans

Skills Required

  • Experience designing, configuring, and managing complex BGP, VXLAN, and Layer 2/3 data center architectures
  • Expertise designing and troubleshooting complex Layer 2/3 network topologies
  • Experience with redundancy protocols such as MCLAG or LACP
  • Experience with Spine-Leaf data center fabrics, including architecture design and implementation
  • Ability and willingness to develop and maintain expertise in RoCEv2
  • Strong problem-solving skills, attention to detail, and commitment to quality work
  • Excellent communication and teamwork skills
  • Ability to stay current with industry trends and technology advancements
  • Ability and willingness to travel up to 20% domestically and internationally
  • Active TS/SCI clearance with Counterintelligence Polygraph
  • Current IAM Level II certification satisfying DoD 8570 IAT requirements
  • Experience with Linux-based Network Operating Systems
  • Experience mentoring or providing technical guidance to junior network professionals
  • Experience supporting high-performance or AI-focused data center environments
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The Company
HQ: Washington, DC
160 Employees
Year Founded: 2002

What We Do

PGTEK is a technology solutions provider specializing in enterprise IT infrastructure, cloud computing, and cybersecurity, with a focus on supporting federal and defense sector clients.

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