DevOps Engineer - SIP Core (Voice Platform)

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

Benefits offered by this job

Full relocation support

200 euros monthly telephone/internet allowance

Gym subscription

25 paid vacation days plus national holidays

Job summary

Swisscom AG in Rotterdam is looking for a skilled DevOps Engineer to manage and improve their SIP Voice Platform. Your role will focus on ensuring high availability and performance of voice services while driving automation in a collaborative environment.

Your tasks include operating SIP-based systems, troubleshooting issues, and actively participating in on-call rotations. This position offers a dynamic work environment in the World Trade Center, with numerous benefits promoting work-life balance.

Qualifications

• Experience working in agile setups.
• Familiarity with monitoring tools and ITSM / ITIL.
• German language skills are a plus.

Responsibilities

• Operate and improve SIP-based telecommunication backend systems.
• Ensure high availability, stability, and performance of voice services.
• Monitor systems proactively and prevent incidents.

Skills

Experience operating SIP/VoIP platforms

Strong knowledge of SIP, VoIP protocols

Solid networking fundamentals

Experience with Linux systems

Good English skills (C1)

Tools

Automation & DevOps tools (Jenkins, Git, Terraform, Ansible)

Scripting skills (Python, Bash)

Experience with Kubernetes / cloud environments

Job description

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