Senior UICC/eUICC/eSIM Engineer

EMnify GmbH; Świnoujście; On-site; PLN 180,000 - 300,000; Full time

Job summary

EMnify GmbH is seeking a hands-on UICC/eUICC/eSIM specialist to own the engineering, interoperability, and certification readiness of our Consumer eSIM (SGP.22) and IoT eUICC (SGP.32) products. The role spans profile design, technical specification, validation, and production readiness.

You will work across SIM technology, devices, and mobile networks, ensuring high quality and interoperability before rollout while coordinating with internal teams and external vendors.

Qualifications

• Hands-on experience in SIM/eSIM/eUICC engineering, validation, or related technical domain.
• Proven experience with GSMA standards, especially SGP.22 and SGP.32.
• Solid understanding of UICC/eUICC architecture, profile lifecycle, and OTA/provisioning processes.

Responsibilities

• Own end-to-end engineering and validation of SGP.22 and SGP.32 eSIM products, including profile design reviews and translating requirements into specs.
• Define and execute certification/validation strategies using GSMA artefacts (SAIP, BAP), including lab and real-world testing.
• Investigate and resolve cross-domain issues (SIM, device, network) with root-cause analysis and coordination of fixes.
• Serve as technical contact for remote provisioning platforms and SIM/eUICC vendors, defining acceptance criteria and supporting production rollout decisions.
• Produce clear technical documentation to enable Product, Support, and Customer-facing teams.

Skills

SIM/eSIM/eUICC

GSMA standards

OTA provisioning

cross-domain debugging

Tools

SAIP

BAP

Job description

Your Role

We are looking for a hands-on UICC/eUICC/eSIM specialist to take ownership of the engineering, interoperability, and certification readiness of our Consumer eSIM (SGP.22) and IoT eUICC (SGP.32) products.

You will operate across the full lifecycle, from profile design and technical specification to validation and production readiness, working at the intersection of SIM technology, devices, and mobile networks. The role is focused on ensuring our eSIM products meet a high bar for quality, reliability, and interoperability before rollout.

Your Impact

• Own the end-to-end engineering and validation of SGP.22 and SGP.32 eSIM products, including profile design reviews and translation of product requirements into technical specifications
• Define and execute certification and validation strategies using GSMA artefacts (e.g. SAIP, BAP), including lab and real-world interoperability testing across devices and networks
• Investigate and resolve complex cross-domain issues (SIM, device, network), providing clear root cause analysis and coordinating fixes with internal teams and external vendors
• Act as the technical point of contact for remote provisioning platforms (SMDP+, eIM) and SIM/eUICC vendors, including defining acceptance criteria and supporting go/no-go decisions for production rollout
• Produce clear technical documentation (test reports, defect analysis, certification status) to enable Product, Support, and Customer-facing teams

Your Skills

• Strong hands-on experience in SIM/eSIM/eUICC engineering, validation, certification, or a closely related technical domain
• Proven experience working with GSMA standards, particularly SGP.22 and SGP.32
• Solid understanding of UICC/eUICC architecture, profile lifecycle, and OTA/provisioning processes
• Experience designing and executing test strategies using certification-style artefacts (e.g. SAIP, BAP or similar)
• Ability to debug complex issues across SIM, device, and network layers and coordinate resolution with multiple stakeholders
• tyle operational models.