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# DevOps Engineer - SIP Core (Voice Platform)

- **Company:** Swisscom Bekijk Alle Vacatures
- **Location:** Rotterdam, Netherlands (Remote available)
- **Salary:** €5,000.0 - €6,000.0
- **Contract:** Temporary contract
- **Skills:** Agile Methodology, Bash Shell, VoIP, Linux, DevOps, Monitoring of Systems, Internet Protocol Security (IP SEC), Python (Programming Language), Networking Basics, Routing, Ansible, TCP/IP, Scripting, Cloud Platform System, System Availability, Ribbon (Software), Backend, Git, Kubernetes, Terraform, Jenkins
- **Published:** October 22, 2026
- **Apply:** https://www.careerjet.nl/jobad/nld2d5f91c5da67c339174394bc25f0b0f

## About the Role

Experience operating SIP/VoIP platforms (ideally Ribbon SIP Core)

 - Strong knowledge of SIP, VoIP protocols, and secure transport (RTP, SRTP, TLS)
 - Solid networking fundamentals (TCP/IP, routing, switching, IPSec)
 - Experience with Linux systems and system operations
 - Hands-on mindset in troubleshooting and problem-solving
 - Good English skills (C1)
Nice-to-haves:

 - Automation & DevOps tools (e.g., Jenkins, Git, Terraform, Ansible)
 - Scripting skills (Python, Bash)
 - Experience with Kubernetes / cloud environments
 - Familiarity with monitoring tools and ITSM / ITIL
 - Experience working in agile setups
 - German language skills
Want to know more about us?

## Description

Help us run and evolve a mission-critical SIP platform used by business customers every day. In this role, you ensure stability and availability while actively driving automation and modernization of our voice services. You'll work in a DevOps setup with real ownership and impact - from operations to continuous improvement. What you can expect: -High-impact role on a critical VoIP platform (SIP Core / Ribbon) -Modern DevOps environment with automation and continuous improvement -Collaboration across network, architecture, and operations teams -Agile setup (SAFe) with real influence in PI Planning and execution -Room to shape and improve systems - not just operate them.
What impact will you have?

 - Operate and improve SIP-based telecommunication backend systems
 - Ensure high availability, stability, and performance of voice services
 - Monitor systems proactively and prevent incidents
 - Troubleshoot complex issues and perform root cause analysis
 - Test and deploy updates, fixes, and improvements
 - Drive automation, monitoring, and operational efficiency
 - Contribute to capacity planning and system health checks
 - Maintain and improve documentation and runbooks
 - Participate in on-call rotation (Engineer on Duty)