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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 (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?
We are serving the Swiss market as Switzerland’s leading IT & Telecom company. Thus, we are actively driving digitalization and networking, and tapping new paths for our customers and our employees. Our values are sparking passion, aiming high and standing true.
Since 2019, we have been building up the coolest DevOps Center with a wonderful office at the World Trade Center in the heart of Rotterdam. We are currently recruiting IT passionate professionals who are keen on developing high-quality software, have an agile mindset and appreciate the collaboration with motivated colleagues from all over the world.
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!
Are you coming to the office by bike or car? You can park right here at the office
Be a part of our events to build a stronger Swisscom community - for example, culture lunches, fun quizzes, game nights and a lot 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 Swisscom learning platforms
Travel allowance reimbursement
500 euros home office allowance
Gym subscription, Tax advice, and language course
Salary range: 60,000 to 72,000 euros gross per year including holiday allowance
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 of your employment with us, after a feedback meeting with the team, there is a possibility of extending the contract
The salary ranges mentioned in our Job Descriptions are base annual gross salaries including the 8% holiday allowance
Since this role consists of varying seniorities, the salary range is between 60k to 75k euros gross per year, including the 8% holiday allowance
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