Senior Voice & IP Networking Engineer with PoCs & On-Call

Ekinops; Massy; On-site; EUR 70,000 - 90,000; Full time

Job summary

Ekinops in Massy, France is seeking a senior technical support engineer for the CSO Access team to own complex customer incidents and drive PoCs with PreSales. You will diagnose issues, configure, and validate interoperability across networks and services.

You will investigate voice signalling, IP connectivity and collaborate with R&D on defects, while delivering customer trainings and participating in a 24/7 on-call rotation.

Qualifications

• Hands-on VoIP/SIP expertise with SBCs and SIP/SDP call flows.
• Strong IP networking knowledge: routing, switching, TCP/IP, VLAN, NAT, QoS, VPNs.
• Experience in telecom/network technical support or engineering; voice troubleshooting.
• Fluent professional English is a must.

Responsibilities

• Own complex customer incidents from diagnosis to resolution.
• Prepare and execute technical PoCs with PreSales: integration and interoperability tests.
• Investigate voice signalling, media and IP connectivity via traces and captures.
• Collaborate with R&D on defect analysis and fix validation; provide training or workshops.
• Participate in the 24/7 on-call rotation.

Skills

VoIP & SIP expertise

SBCs

IP networking

SIP/SDP

RTP media

ISDN BRI/PRI

English fluency

Troubleshooting

Job description

Ekinops in Massy, France is seeking a senior technical support engineer for the CSO Access team to own complex customer incidents and drive PoCs with PreSales. You will diagnose issues, configure, and validate interoperability across networks and services.

You will investigate voice signalling, IP connectivity and collaborate with R&D on defects, while delivering customer trainings and participating in a 24/7 on-call rotation.