Network Engineer III

Job description

Overview:
We’re seeking an experienced NOC Engineer to join our network operations team supporting large-scale enterprise and carrier-grade environments. This role is responsible for monitoring, troubleshooting, and maintaining network infrastructure across legacy and modern systems, ensuring uptime and optimal performance. The ideal candidate will have deep hands-on experience with Cisco and Juniper network gear, strong routing protocol expertise, and a proactive approach to network reliability and service restoration.

Key Responsibilities:

  • Monitor network infrastructure and respond to incidents impacting availability, latency, and performance.

  • Troubleshoot and resolve routing, connectivity, and hardware issues across Cisco and Juniper platforms.

  • Perform root cause analysis and create detailed documentation (MOPs, diagrams, and post-incident reports).

  • Participate in the 12 a.m. – 6 a.m. maintenance window for planned changes, upgrades, and testing.

  • Support network migrations, site due diligence, new equipment installations, firewall requests, and break/fix tickets via ServiceNow.

  • Contribute to network drawings, documentation, and continuous process improvements.

  • Participate in the on-call rotation (1 week at a time, currently every 4 weeks, moving to every 6 weeks).

Must-Have Qualifications:

  • 5+ years of professional NOC or network engineering experience.

  • Strong hands-on experience with Cisco and Juniper equipment (legacy gear, 15–25 years old—not data center gear).

  • Proven ability to design and troubleshoot BGP, OSPF, and VRF routing environments.

  • Solid understanding of T1, Ethernet, and Async technologies.

  • Experience writing and executing Methods of Procedure (MOPs).

  • Excellent documentation, analytical, and communication skills.

Preferred Skills:

  • Experience with firewall configurations and network migrations.

  • Familiarity with ServiceNow for incident and change management.

  • Ability to work effectively in a fast-paced, team-oriented environment.

Team & Projects:
You’ll support initiatives such as network migrations, site due diligence, equipment installations, network drawings, and break/fix activities. The team values precision, collaboration, and accountability in maintaining critical network systems.

Job details

Job type Contract

Location United States

Reference JOB-4752

Apply now

"*" indicates required fields

Step 1 of 3

Accepted file types: pdf, doc, docx, txt, Max. file size: 4 MB.
If hired, will you now or in the future require sponsorship for employment visa status (e.g., H-1B visa)?
Employment with Tier4 Group and our clients may be contingent upon successfully passing a background check, in compliance with applicable laws. Do you consent to a background check if offered employment?
Are you legally authorized to work in the United States?*