DevOps Engineer - SIP Core (Voice Platform)

Swisscom; Rotterdam; On-site; EUR 60,000 - 75,000; Full time

Benefits offered by this job

Full relocation support

Monthly telephone/internet allowance

Health insurance contribution

Paid training days

Home office allowance

Gym subscription

Job summary

Swisscom is looking for a professional to manage and enhance a mission-critical SIP platform in Rotterdam. This role emphasizes operational excellence, ensuring the stability and availability of vital voice services while driving automation and modernization.

The perfect candidate will have significant experience with SIP and VoIP technology, outstanding troubleshooting abilities, and a commitment to operational excellence in a DevOps setup.

Qualifications

• Experience operating SIP/VoIP platforms, ideally Ribbon SIP Core.
• Strong knowledge of SIP, VoIP protocols.
• Solid networking fundamentals, experience with Linux systems.

Responsibilities

• 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.

Skills

SIP/VoIP platform operation

SIP, VoIP protocols, RTP, SRTP, TLS

TCP/IP, routing, switching, IPSec

Linux systems

Troubleshooting

Good English skills

Tools

Automation Tools (Jenkins, Git, Terraform, Ansible)

Scripting (Python, Bash)

Kubernetes

Monitoring tools

Job 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)

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 (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

What’s in it for you?

Work environment

• 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 availability for office commute
• Events building a stronger Swisscom community – culture lunches, quizzes, game nights, etc.

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 Swisscom learning platformsTravel 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

• No fixed‑term contract beyond one year, possibility of extension after 6 months with feedback meeting
• Salary ranges mentioned are base annual gross salaries including the 8% holiday allowance
• Salary range: 60k to 75k euros gross per year, including 8% holiday allowance