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# Senior Network Engineer (Polygraph Preferred)

- **Company:** TEKSYSTEMS INC.
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Salary:** $124,800.0 - $187,200.0
- **Contract:** Temporary contract
- **Skills:** Application Programming Interfaces (APIs), Border Gateway Protocol, Complex Networks, Data Centers, DevOps, Distributed Systems, Ethernet, Virtual Private Networks (VPN), Multi-protocol Systems, Jinja (Template Engine), Python (Programming Language), Multicasting, Netconf, Network Architecture, Network Installation Services, Routing, Open Shortest Path First (OSPF), Ansible, Wide Area Networks, Extensible Markup Language (XML), Scripting, Reliability of Systems, Juniper, Restful APIs, Open Network Automation Platform, Grpc
- **Published:** October 22, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9254104/senior-network-engineer-polygraph-preferred

## About the Role

7+ years of hands-on network engineering experience.

 - Strong background supporting medium-to-large-scale ISP, carrier, or service provider network environments.
 - Expertise with Juniper routing platforms, particularly Juniper MX Series.
 - Deep understanding of WAN technologies and transport architectures.
 - Proven experience supporting mission-critical production networks.

Required Technical Skills:

 - Juniper Networking
 - BGP (Border Gateway Protocol)
 - OSPF (Open Shortest Path First)
 - MPLS (Multiprotocol Label Switching)
 - EVPN (Ethernet VPN)
 - Multicast Networking
 - L2VPN and L3VPN
 - WAN Architecture and Operations
 - ISP/Service Provider Networking
 - Advanced Networking Knowledge

Experience with:

 - Hierarchical IS-IS
 - Segment Routing (SR-MPLS and SRv6)
 - MPLS Traffic Engineering (TE)
 - RSVP and LDP
 - Routing Policies
 - Pseudowires
 - VXLAN
 - GRE Tunneling
 - Data Center Routing and Switching Architectures
 - Automation & DevOps Skills

Experience with one or more of the following is highly desirable:

 - Python
 - Juniper PyEZ
 - ncclient
 - REST APIs
 - NETCONF
 - XML APIs
 - gRPC
 - Ansible
 - Jinja2 Templates
 - Network Automation Frameworks
 - Operational and Event-Driven Scripting

Nice to Have:

 - Experience with Juniper Routing Director.
 - Juniper certifications (JNCIS, JNCIP, JNCIE) or equivalent vendor certifications.
 - Data center design and architecture experience.
 - Network automation and infrastructure-as-code expertise.
 - Experience implementing Segment Routing solutions in production environments.

## Description

We are seeking an experienced Senior Network Engineer to support large-scale service provider and mission-critical network environments. This role is ideal for a networking professional with deep expertise in Juniper technologies, advanced routing protocols, MPLS architectures, and WAN engineering.

As a trusted technical resource, you will help design, deploy, optimize, and troubleshoot complex network infrastructures while working closely with customer engineering teams, internal stakeholders, and technical support organizations. You will play a key role in ensuring network reliability, performance, and scalability across geographically distributed environments.

What You'll Do:

 - Support and maintain large-scale service provider and enterprise network environments.
 - Design, plan, and implement network deployments and upgrades.
 - Develop implementation and test plans for new network solutions.
 - Serve as a primary technical point of contact for operational incidents and escalations.
 - Troubleshoot complex routing, switching, and transport network issues.
 - Collaborate with internal engineering teams and customer stakeholders on network initiatives.
 - Open, manage, and coordinate technical support cases through resolution.
 - Perform root cause analysis and communicate findings to stakeholders.
 - Provide technical briefings, documentation, and knowledge-sharing sessions.
 - Identify opportunities to improve network architecture, performance, and operational efficiency.