Resident Engineer – Network Infrastructure

Salt; Mount Laurel Township (NJ); On-site; USD 120,000 - 160,000; Full time

Job summary

Salt is seeking an experienced Resident Engineer to deliver hands-on technical support for complex Juniper-based networks in large enterprise and service provider environments. You will design, implement, test, and operate critical networks, collaborating with customer teams to ensure reliability and performance.

The role emphasizes deep Juniper know-how, IP routing, and network automation using Python, Ansible, YAML, and PyEZ, with responsibilities spanning pre-production testing through

Qualifications

• 5+ years designing and supporting large-scale IP networks.
• Hands-on with Juniper MX, PTX, ACX routing platforms.
• Advanced Junos OS, CLI configuration and troubleshooting.
• Experience in service provider networking, TCP/IP, MPLS, IPv6.
• Experience with network automation using Python, Ansible, YAML, PyEZ.

Responsibilities

• Design, implement, and operate large-scale IP networks.
• Plan and deploy Juniper routing platforms.
• Test and validate new designs and software before production.
• Troubleshoot complex issues with customer teams.
• Develop network operating procedures and automation.
• Produce technical reports on performance and issues.
• Collaborate with internal teams and customers.
• Provide training and guidance to customer staff.

Skills

IP networking design

Juniper MX/PTX/ACX

Junos OS & CLI

BGP/OSPF/IS-IS

Network automation

Customer-facing communication

Tools

Python

Ansible

Juniper PyEZ

YAML

Job description

About the Company Our client is a global technology organization specializing in enterprise networking, infrastructure, and advanced connectivity solutions. The company partners with leading organizations to design, implement, and support secure, scalable, and high-performance network environments.

About the Role We are seeking an experienced Resident Engineer to provide hands‑on technical expertise and post‑sales support within a large‑scale customer network environment. This is a highly technical, customer‑facing role focused on network design, implementation, testing, troubleshooting, and ongoing operational support. You will work closely with customer engineering and operations teams to ensure network reliability, performance, and successful deployment of new technologies. The ideal candidate brings strong expertise in Juniper networking technologies, large‑scale IP routing, and service provider network environments, combined with excellent troubleshooting and customer engagement skills.

Key Responsibilities

• Provide technical support for the design, implementation, and ongoing operation of large-scale IP networks.
• Support network planning and deployment activities involving Juniper MX, PTX, QFX, and related routing platforms.
• Conduct laboratory testing and validation of new network designs, software releases, features, patches, and fixes before production deployment.
• Troubleshoot complex network issues across pre‑production and live environments, coordinating with vendor technical support teams through resolution.
• Develop and maintain network operating procedures, configuration standards, fault diagnosis processes, and implementation plans.
• Support major network upgrades, maintenance windows, migrations, and infrastructure changes.
• Conduct technical workshops with customers to assess existing network architecture, understand requirements, and recommend solutions.
• Provide technical guidance and training to customer engineering, implementation, and support teams.
• Develop and maintain network automation scripts and tools to improve operational efficiency.
• Produce regular technical reports covering network performance, design projects, equipment issues, and resolution activities.
• Collaborate with internal engineering teams and technical specialists to share best practices and minimize risks associated with network changes.
• Serve as a subject matter expert on Juniper networking platforms, software, and associated technologies.

Required Skills & Experience

• 5+ years of experience designing, implementing, and supporting large-scale IP networks.
• Strong hands‑on experience with Juniper MX, PTX, and ACX routing platforms.
• Advanced knowledge of Junos OS and CLI configuration, troubleshooting, and administration.
• Strong understanding of service provider networking technologies and protocols, including:
  • TCP/IP, MPLS, and IPv6
  • BGP, OSPF, IS-IS, RSVP, LDP, and MPLS-TE
  • Routing policies, BGP peering, migration, and scalability
  • MPLS VPNs, L3VPN, VPLS, MVPN, and tunneling technologies
  • Ethernet switching, VLANs (802.1Q), QoS, and Class of Service
• Experience with network automation using Python, Ansible, YAML, and Juniper PyEZ.
• Proven experience supporting network upgrades, software validation, maintenance activities, and production deployments.
• Strong troubleshooting and fault isolation skills within complex networking environments.
• Ability to translate technical requirements into practical network designs and implementation strategies.
• Excellent communication, presentation, and customer‑facing skills.
• Ability to communicate effectively with technical teams and senior stakeholders, including during critical network incidents.

Nice to Have

Professional networking certifications such as JNCIS, JNCIP, JNCIE, CCNP, or CCIE. Experience supporting large enterprise or telecommunications/service provider network environments. Exposure to additional Juniper networking platforms and technologies. Experience developing network testing frameworks, operational standards, and automation solutions.

Why Consider This Opportunity?

This is an opportunity to work directly within a complex, large‑scale networking environment, supporting critical infrastructure and advanced routing technologies. You will play a key role in network design, operational stability, and technology deployment while working closely with experienced engineering teams and customer stakeholders. If you are an experienced Network Engineer with deep Juniper expertise and enjoy solving complex technical challenges in a customer‑facing environment, we'd love to hear from you.

Salt is acting as an Employment Agency in relation to this vacancy.