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

About the role

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% domestically and internationally. Clearance: active TS/SCI with Counterintelligence (CI) Polygraph required. Certification: current IAM Level II certification to satisfy DoD 8570 IAT requirements. Salary range: $175,000–$230,000.

PGTEK is a consulting organization dedicated to helping clients achieve their business and technology objectives utilizing decades of experience and business relationships. PGTEK invests in the educational advancements of staff by providing resources to complete professional and business certifications.

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.

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.

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

• Comprehensive PPO medical coverage with access to a Health Savings Account (HSA) option.
• Vision plan.
• Dental insurance with the base dental plan option paid for by PGTEK.
• Life Insurance, Short and Long-Term disability, and Critical Illness insurance with premiums covered.
• Matching 401(k) plan.
• Discount on pet insurance through ASPCA Pet Insurance.
• Employee Assistance Program available at no cost.
• Generous amount of PTO and Holidays.
• Education Assistance Program available after 12 months of employment.