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

PGTEK; Chantilly (VA); On-site; USD 158,000 - 205,000; Full time

Benefits offered by this job

Health insurance

Vision plan

Dental insurance

Life Insurance

Disability insurance

Critical Illness insurance

401(k) plan

Pet insurance discount

Employee assistance program

PTO and holidays

Education assistance

Job summary

PGTEK is seeking a Network Administrator to support high-performance data center networking in a fast-paced environment. The role focuses on implementing advanced networking technologies and collaborating with engineers to ensure scalable, reliable infrastructure.

Expect hands-on work with BGP, ECMP, VXLAN, and Spine-Leaf designs, while advancing toward senior networking expertise. Onsite duties in McLean, VA with potential relocation to Chantilly by year end, and up to 20% travel.

Qualifications

• Familiarity with networking fundamentals such as TCP/IP, routing, switching, VLANs and basic troubleshooting.

Responsibilities

• Assist with documentation, monitoring, maintenance, and troubleshooting of high-performance data center networking infrastructure.
• Learn and progressively develop expertise with advanced networking technologies including BGP, ECMP, VXLAN, Spine-Leaf architectures, MCLAG, RoCEv2.
• Identify performance trends, capacity constraints, and emerging issues before they impact services or customers.
• Partner with experienced engineers to deploy, optimize, and scale network infrastructure supporting AI and other demanding workloads.
• Investigate network incidents, perform root cause analysis, and drive issues to resolution.
• Participate in network upgrades, implementations, testing, and operational improvement initiatives.
• Contribute to network documentation and procedures.
• Continuously expand technical expertise through learning, mentorship, and training.
• Travel up to 20% to support deployments, installations, maintenance, and operations at sites.

Skills

Troubleshooting

Analytical thinking

Problem-solving

Communication

Job description

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: $158,000–$205,000

About the Role

PGTEK is seeking a motivated Network Administrator to support high-performance data center networking infrastructure in a fast-paced and continuously evolving environment.

This is a growth-oriented opportunity for someone with a foundation in IT systems, infrastructure, technical support, or networking who wants to develop advanced data center networking expertise. You will work alongside experienced engineers while gaining hands-on experience with technologies including BGP, ECMP, VXLAN, Spine-Leaf architectures, MCLAG, and RoCEv2.

The ideal candidate is naturally curious, technically motivated, and excited to develop into a highly skilled data center networking professional.

Key Responsibilities

• Assist with the documentation, monitoring, maintenance, and troubleshooting of high-performance data center networking infrastructure.

• Learn and progressively develop expertise with advanced networking technologies, including BGP, ECMP, VXLAN, Spine-Leaf architectures, MCLAG, RoCEv2, and related technologies.

• Assist in identifying performance trends, capacity constraints, and emerging issues before they impact services or customers.

• Partner with experienced engineers to deploy, optimize, and scale network infrastructure supporting AI and other demanding workloads.

• Investigate network incidents, perform root cause analysis, and help drive issues through resolution.

• Participate in network upgrades, implementations, testing, and operational improvement initiatives.

• Contribute to network documentation and operational procedures.

• Continuously expand technical expertise through hands-on experience, self-directed learning, mentorship, and training.

• Travel up to 20% as needed to support deployments, installations, maintenance activities, and operational support at customer sites or data centers.

• Strong troubleshooting, analytical, and problem-solving skills.

• Self-motivated with a strong sense of ownership, accountability, and follow-through.

• Excellent communication and collaboration skills.

• Ability to work effectively in a fast-paced environment where technology is continuously evolving.

• Willingness and enthusiasm to continuously learn and develop new technical skills.

• 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

• Familiarity with networking fundamentals, including TCP/IP, routing, switching, VLANs, SNMP, and basic network troubleshooting.
• Experience with monitoring, telemetry, observability, alerting, or performance management tools.
• Exposure to Linux systems or Linux-based Network Operating Systems (NOS).

Our comprehensive benefits package for full-time salaried employees is effective immediately upon the start date.

• 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 have premiums covered
• Matching 401(k) plan
• Discount on pet insurance through ASPCA Pet Insurance
• An Employee Assistance Program is available at no cost to all employees
• Generous amount of PTO and Holidays
• 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