DevOps Engineer - SIP Core (Voice Platform)
Summary
Run and evolve a critical SIP-based voice platform for business customers, ensuring high availability and driving automation in a DevOps environment.
DevOps Engineer - SIP Core (Voice Platform)
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)
Must‑haves
- 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 (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
What's in it for you?
- Agile way of working, multi‑cultural work environment promoting work‑life balance
- Autonomy, flexibility, opportunity and growth
- Cool office space in the World Trade Center Rotterdam
- Parking available at the office
- Part of our events to build a stronger community — culture lunches, quizzes, game nights and more!
Allowances
- Full relocation support (Housing, settling in, etc.) for you and your family
- 200 euros per month telephone/internet allowance
- 275 euros per month contribution to health insurance
- 5 paid training days and access to learning platforms
- Travel allowance reimbursement
- 500 euros home office allowance
- Gym subscription, tax advice, and language course
Leaves policy
- Care, bereavement, maternity and paternity leaves
- 25 days paid vacation days plus Dutch national holidays
Contract terms
- To begin with you will receive a fixed‑term contract (one year); after 6 months, a possible extension depending on performance
- Salary ranges mentioned are base annual gross salaries including the 8% holiday allowance
- Salary range is between €60k to €75k gross per year, including the 8% holiday allowance