SIM/ OTA Engineer (all)

Permanent employee, Full-time · Cologne

Your team
Become an important part of 1NCE as SIM/ OTA Engineer (all) and work directly with our CTO and the entire technical team. We are looking for real “doers” with a positive drive and energy who complement our team in the best possible way and who enjoys mastering challenges and growing together with us.
This position is based in Cologne and can be done onsite or hybrid.
Your mission
  • You are responsible for SIM/eSIM Profile Management with the correct parametrization of our SIMs according to GSMA and 3GPP specification, to ensure that SIM, device and our network interact perfectly together
  • You are responsible for the SIM lifecycle process, from requirement engineering to operations
  • You act as the interface to our SIM/OTA vendors and standardize the SIM procedures for all vendors
  • You create documentation of the technical processes
  • You participate in development projects being attached or related to SIM/OTA
  • You are responsible for SIM customization, maintenance, and SIM reprogramming
  • Additionally you take care of Handset Interaction Tracing, AuC Security Policy & OTA
Your skills
  • You successfully finished your studies of electrical engineering, technical Computer Science, or a relatable education
  • You possess around 5 years’ experience in a similar role (Engineering, Roaming)
  • You have excellent administrative and IT skills
  • You have a background in the telecom industry
  • You have SIM card related troubleshooting skills
  • You are able to perform SIM, Wireshark and network traces, provision SIMS, change IMSIs
  • You bring experience in eSIM Remote SIM provisioning GSMA SGP 01/02
  • You are familiar of working with multi IMSI applications and creating/updating procedures in the process
  • You are capable of liaising with SIM vendors (in conjunction with Managers)
  • You are experienced in the maintenance of OTA systems (preferred, but this can also be learned on the job)
  • You know how to do basic checks on an HLR for SIM card provisioning
  • You have a self-starter mentality, proactive, not afraid to take the initiative
  • You are a team player, customer focused and have a confident and competent appearance
Your gains
  • An exciting environment that will revolutionize the telecommunications market for IoT
  • Varied, agile work in a growing company with an international team where teamwork is more than a buzzword
  • Short decision-making paths and a lot of creative freedom - with us you can really get involved and help shape the future
  • Urban Sport membership
  • Nilo.Health platform for your well-being 
  • Work around the world program
Your contact
Margarita Kiefer
About us

Take your 1NCE in a lifetime opportunity !

1NCE is set to change the IoT connectivity market forever. This requires courage, creativity and a unique team with special skills.
Are you ready to join us in shaping the future of the IoT? 1NCE offers you unique career opportunities in one of the fastest growing markets in the world. 

At 1NCE, we are committed to providing equal employment opportunities to all individuals regardless of their race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other legally protected status. We value diversity, inclusion, and equity, and believe that a diverse and inclusive workforce is a key driver of our success.

We strive to create a workplace where everyone feels valued, respected, and empowered to bring their full, authentic selves to work. We are dedicated to providing a fair and equitable hiring process that ensures all candidates are evaluated based on their qualifications, skills, and experience without bias or discrimination.
We look forward to meeting you!
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