IPX Engineer Signalling at our HQ

Comfone AG
CH - Bern
March 27, 2025

We live in a connected world. Whether you are chatting to loved ones overseas, or depending upon connected healthcare devices, reliable connectivity is essential and therefore we provide easy and borderless communication to all people and things. Comfone is a pioneer in global international roaming services, a market in constant technological evolution. We are proud of our contributions in defining the standards and shaping this industry. Over more than 25 years, our roaming services have helped billions of subscribers stay connected when it really matters. We are a Swiss company based in Bern with regional offices covering Europe, Latin America, North America and Asia Pacific. We are an international team with staff from more than 40 different nationalities, speaking more than 32 languages and driven by values of diversity, equity, and inclusion into our daily operations.
To learn more about the company, please check our website ***

Operate, maintain and develop the IPX signalling services and systems of Comfone
Implement and manage signalling links, including planning, routing, testing, documentation, and providing technical support to Comfone customers and peer
Enhance Comfone's IPX signalling network ensuring reliable performance and scalability
Proactively monitor the IPX signalling network and manage its capacity to ensure optimal performance and prevent issues before they impact service
Troubleshoot services and resolve technical incidents worldwide to minimize downtime and restore services efficiently
Provide 2nd-level on-call duty support to internal and external parties

University degree or equivalent in the field of telecommunications, communication systems or comparable with a very good understanding of Mobile Networks and protocols
Experience in operating STP, DRA, PGW and HSS, as well as VAS platforms, including configuration, troubleshooting and performance optimization
Deep knowledge of Mobile Network related protocols and technologies, including SS7/SIGTRAN, Diameter, GTP and DNS, as well as signalling routing and roaming
Proficient in Wireshark/tcpdump and other industry-standard tracing/monitoring tools
At least 5 years of professional experience in operating mobile networks or IPX
Knowledge of the 5G SA mobile network standards is a plus
Ability to script in Python, Linux shell and SQL, with knowledge of Linux system is a plus
Dynamic, communicative and customer focused, with a commitment to delivering high-quality, reliable service
Fluent in English, both written and spoken. Extra languages are a plus
You are willing to work in Bern, Switzerland

The position is open to Swiss and EU nationals, and to holder of a valid Swiss work permit.

Beside of a variety of challenges within a growth-oriented market, and the possibility to shape the future of our dynamic and highly successful company, we offer:

A friendly work environment with theme evenings, Apéros, raclette evenings and more!
A multi-cultural and multi-linguistic team with English as the corporate language (giving you the chance to polish your context switch when mingling!)
Yearly international events with our clients from all over the world (ConneXion)
Competitive salary
Flexible and partially remote work time
Brand new office with state-of-the-art equipment
SBB half-fare abonnement
Mobile phone subscription and subsidy for handset purchase
Special prices at restaurants close to HQ in Bern
Onboarding with consequent training and introduction to all departments
Support for advanced education
Company events (Summer events, Christmas Party, Team events …)

Read the full job description and apply online on the recuiter's web-site

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