ppThe CompanyCubic³ provides advanced software-defined vehicle solutions to over 200 countries around the world. Our powerfully smart connectivity enables leading automotive, agriculture, and transportation OEMs to deliver innovative new services and fully compliant in-vehicle experiences that customers desire, regardless of local market requirements.We believe in leadership that supports empowerment and responsibility, while recognising and developing leadership qualities across Our Team. Together we bring out the best in each other. So, whether you’re interested in joining us as an individual contributor, manager, senior leader – or someone who aspires to growing into a leadership role – we look for people who are results focused, empathetic, visionary, empowering, and who ‘champion’ our cultures and values. /ph3The Role /h3pWe are looking for a SIM Engineer Level I with hands‑on experience in SIM and eSIM technologies. You will join a dynamic SIM Engineering team and play a key role in delivering Cubic³ solutions within the evolving SIM/eSIM Remote SIM Provisioning technology domain. The SIM Engineer Level I will contribute to building advanced connectivity solutions, managing SIM/eSIM card logistics and fulfilment, and providing technical support to our global customers. You will work directly with the latest developments in eSIM and emerging connectivity standards. /ph3Responsibilities /h3ulliDesign, validate, and maintain electrical and logical profiles for SIM and eSIM products /liliDevelop and implement Java Card applets for SIM/eSIM services, ensuring compliance with 3GPP, ETSI, and GSMA standards /liliCreate and update technical documentation (e.g., applet specifications, test plans) /liliCollaborate with cross-functional teams spanning mobile core networks, security, and device vendors /liliSupport the development,



testing, and integration of SIM-based applications and tools /liliUtilize smart card test and trace tools to ensure quality and performance /liliParticipate in technical reviews, troubleshooting, and team meetings /li /ulh3What’s in it for you /h3ulliInvolvement in end-to-end SIM/eSIM ordering and provisioning processes /liliOpportunities to work with advanced IoT and connectivity technologies /liliProfessional growth and skills development in a collaborative environment /liliThe ability to drive ideas and technical initiatives within a highly skilled team /li /ulh3Required Skills Experience /h3ulliBachelor’s degree in engineering, computer science, or a related discipline /lili3+ years of relevant experience in telecoms technology, connectivity, or related sectors /liliProven experience with SIM/eSIM technologies and protocols (APDU, ISO 7816) /liliKnowledge of 3GPP, ETSI, and GSMA standards /liliExperience with Java, Java Card, or scripting languages /liliFamiliarity with mobile network elements and smart card technologies /liliStrong analytical and problem-solving skills; quality-focused and self-motivated /liliEffective written and verbal communication skills /li /ulh3Desirable /h3ulliExperience with Git, Postman, or smart card test tools (e.g., Comprion) /liliExposure to Kanban/Agile methodologies /li /ulpNew hires at Cubic³ are required to work onsite five days a week during their six-month probation period to get to know the company, their team, and our ways of working. After probation, we offer a adaptable arrangement of up to eight work‑from‑home days per month, provided it aligns with business needs and performance standards. This arrangement is not a given for all roles. /ppCubic³ is an equal opportunities employer and committed to fostering a diverse and inclusive workplace. /p /p #J-18808-Ljbffr

📌 SIM Engineer I (Madrid)
🏢 Doist
📍 Madrid