Senior SIM Expert (all) - Riga

We are 1NCE

1NCE is a pioneering company at the forefront of reshaping the IoT connectivity landscape. As a key player in the industry, we are on a mission to change the telecoms/IoT landscape. With a focus on innovation, customer satisfaction and industry leadership, 1NCE is ready to change the system.

Your team

Become an important part of 1NCE as

Senior SIM Expert (all)

and work directly with our 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.

Your mission

SIM/eSIM profile management

Ensure correct parametrization of SIMs in compliance with GSMA and 3GPP specifications to guarantee seamless interaction between SIM, device, and network.

SIM lifecycle ownership

Oversee the entire SIM lifecycle process, from requirement engineering through to operational management.

Vendor coordination

Act as the primary interface to SIM and OTA vendors, standardizing SIM-related procedures across all partners.

Process documentation

Create and maintain clear documentation of technical processes to ensure consistency and transparency.

Project participation

Contribute to development projects that are connected to or reliant on SIM/OTA functionalities.

SIM customization and maintenance

Manage SIM customization, ongoing maintenance, and reprogramming to support operational needs.

Additional responsibilities

• Handle handset interaction tracing, AuC security policy, and OTA-related processes.
• Your skills

Educational background

Completed studies in Electrical Engineering, Technical Computer Science, or a related field of education.

Professional experience

Approximately 5 years of experience in a similar role, such as Engineering or Roaming.

Technical and administrative skills

Strong administrative and IT abilities with a solid background in the telecom industry.

SIM troubleshooting expertise

Skilled in SIM card troubleshooting, including the ability to perform SIM, Wireshark, and network traces, provision SIMs, and change IMSIs.

eSIM provisioning knowledge

Experienced in eSIM Remote SIM provisioning following GSMA SGP 01/02 standards.

Multi-IMSI familiarity

Proficient in working with multi-IMSI applications and creating or updating related procedures.

Vendor coordination

Capable of liaising effectively with SIM vendors in collaboration with managers.

OTA systems maintenance

Experienced in maintaining OTA systems (preferred, though training can be provided if needed).

HLR knowledge

Able to perform basic checks on an HLR for SIM card provisioning.

Work approach

Self-starter mentality, proactive, and confident in taking initiative.

Team and customer orientation

• Strong team player with a customer-focused mindset and a confident, competent professional appearance.
• Your gains
• 26 Days of paid vacation per Year
• Further professional development - Become part of our international team and an exciting environment that will revolutionise the telecommunications market for IoT
• An exciting environment that will revolutionise the mobile market for IoT with simplicity
• Varied, agile work in a young company with an international team where fun is not neglected
• Short decision-making paths and plenty of room for manoeuvre - with us, you can really get involved and help shape the future
• Trust-based working hours, laptop, mobile phone and the option to work remotely
• Modern office in a central location with drinks, fruit, office snacks, subsidised Urban Sports Club membership and excellent public transport connections
• Your contact
• ​Vladimir Kaiser

In case of any additional questions regarding the position

<[email hidden]>