Senior Linux Network Support Engineer (VoIP/SIP)

U.S. Citizens or Green Card holders only – no sponsorship available

Do you enjoy solving complex Linux, networking, and VoIP issues that others can’t?

We’re partnering with an established telecommunications technology company looking for a Senior Network Support Engineer to support mission-critical communication platforms used by enterprise customers. This is an excellent opportunity for someone who enjoys troubleshooting at the operating system, application, and network layers while working alongside engineering teams to resolve challenging production issues.

If Linux, SIP, packet analysis, and root cause troubleshooting are your strengths, we’d like to hear from you.

What You’ll Do

• Troubleshoot complex issues across Linux-based telecommunications platforms
• Analyze SIP signaling, RTP traffic, and network behavior to identify root causes
• Capture and interpret packet traces using Wireshark and tcpdump
• Resolve Linux operating system, networking, and application-related issues
• Work directly with customer engineering teams to diagnose production problems
• Apply software updates, patches, and configuration changes in production environments
• Develop Methods of Procedure (MOPs) for maintenance activities and deployments
• Gather logs and technical data for engineering and development teams
• Participate in platform upgrades and scheduled maintenance activities

What We’re Looking For

Required Qualifications

• 5+ years supporting Linux environments (Red Hat, CentOS, Ubuntu, or similar)
• Strong troubleshooting experience across Linux servers, networking, and applications
• Hands-on experience with VoIP technologies and SIP protocol
• Experience analyzing packet captures with Wireshark
• Solid understanding of TCP/IP networking, DNS, and routing
• Comfortable working from the Linux command line
• Strong communication skills with the ability to work directly with customers

Preferred Qualifications

• Experience with Asterisk, FreeSWITCH, Kamailio, or Session Border Controllers (SBCs)
• Bash, Python, or other scripting experience
• Exposure to Diameter protocol
• VMware or virtualized server environments
• Cisco networking knowledge

Why You’ll Want This Role

• Competitive salary of $125,000-$130,000
• Hybrid work schedule
• Highly technical, customer-facing role with significant ownership
• Opportunity to work on large-scale, mission-critical telecommunications platforms
• Collaborative engineering environment with challenging technical work every day

If you’re the engineer who enjoys digging into Linux logs, decoding SIP traces, and solving complex production issues, we’d love to speak with you. Apply today to learn more.