Senior Network Engineer – Certification & Implementation – freelance – onsite – Middletown, New Jersey, USA

Comgent • Middletown Township, NJ

12d • Onsite

About The Position

Comgent is seeking a Senior Network Engineer to certify networking solutions in a laboratory and support their implementation in customer environments. The role combines Juniper configuration and troubleshooting with test planning, technical documentation, and customer-facing delivery across enterprise and service-provider networks. The assignment is freelance/contract, onsite in Middletown, New Jersey, and scheduled for 40 hours per week.

The engineer will independently design, build, validate, and deploy networking solutions; certify hardware, software releases, and network designs; and support customer onboarding and migrations. The role requires coordinating across projects and working with engineering, operations, and customer teams.

Requirements

• At least five years of hands-on experience with Juniper routing, switching, and security, including laboratory certification and customer implementations.
• JNCIP-level configuration and troubleshooting proficiency; certification is not mandatory.
• Ability to configure and troubleshoot multicast, GRE, IPsec VPNs, NAT, BGP, OSPF, IPv6, CoS, routing instances, J-Flow, Real-Time, RPM, VRRP, and SNMP.
• Hands-on experience with SRX300/SRX400 and mid-range SRX; MX204/MX301/MX304/MX240/MX480; EX3400/EX4000/EX4650; and QFX5120 platforms.
• Experience configuring, deploying, monitoring, and supporting Mist WAN Assurance and Mist Switch Assurance environments.
• Experience using Spirent TestCenter and PRTG Network Monitor.
• A degree in Computer Science, IT, or Engineering, or equivalent experience.
• Ability to design, build, validate, and deploy solutions independently.
• Strong analytical, consulting, and presentation skills.
• Clear communication with engineering, operations, and customer audiences.

Nice To Haves

• Juniper certifications.
• Experience with SD-WAN, Metro Ethernet, and LTE/5G resilient WAN.

Responsibilities

• Develop, execute, and document test plans for new hardware, software releases, and network designs, validating Junos features, interoperability, and performance.
• Configure laboratory environments and use test equipment to determine whether solutions meet design and operational requirements.
• Design, configure, and deploy routing, switching, security, and cloud-managed solutions, supporting onboarding, migrations, and operational readiness.
• Design resilient WAN architectures using Metro Ethernet, Internet, and LTE backup services, and troubleshoot complex implementation issues.
• Create certification reports, configuration guides, deployment standards, and engineering procedures, presenting test results and recommendations clearly.
• Present technical findings and transfer knowledge to engineering, operations, and customer teams, coordinating delivery across multiple projects and priorities.
• Provide technical leadership during customer onboarding and migrations, collaborating with customer engineering and implementation teams.

What This Job Offers

• Career Level: Senior