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Unlock the future of digital security with us!

We are a pioneer in digital locking technology and, with a team of over 550 employees, we ensure that people's lives become safer and more comfortable. We don't just open doors; we open paths to more protected and intelligent living spaces. We achieve this through continuous innovation, team spirit, and a deeply rooted passion for the industry.

As a Senior Firmware Developer, you will design and implement C++ application firmware on microcontrollers (ARM Cortex-M) running an RTOS. Your focus will be on application-level features and the integration of physical and smartphone-based credential processing flows (Mifare DESFire, HCE, mobile wallets).

Sounds exciting? Then become part of our journey!

WHAT YOU CAN EXPECT

• Firmware Development: Implement C++ application-layer firmware on an RTOS (tasking, IPC, power-aware scheduling).
• Credential Logic: Develop application logic for existing (Mifare DESFire) and future standards: app/file model, access conditions, personalization, and lifecycle management.
• Connectivity & Workflows: Integrate NFC/BLE/WLAN stacks and mobile credential workflows (provisioning, HCE, revocation).
• Security Implementation: Interface with secure elements / SAMs for key storage and transaction offload. Implement secure boot, signed/encrypted OTA, and application-level runtime protections.
• Software Maintenance: Enhance and maintain internal software suites (C++, C#).
• Testing & CI/CD: Build tests and CI/CD artifacts; use protocol sniffers and hardware debuggers for validation.
• Collaboration: Work closely with mobile, backend, hardware, and QA teams; produce technical and security documentation.

WHAT YOU BRING

• Experience: + 5 years of embedded firmware experience.
• Core Skills: Strong C++ experience for microcontrollers in resource-constrained environments and practical RTOS experience (Zephyr is an advantage).
• RFID/NFC: Hands-on RFID / NFC experience (ISO 14443, Mifare DESFire EVx preferred).
• Mobile Credentials: Experience with smartphone credential flows (mobile wallets, HCE, provisioning).
• Security: Familiarity with applied cryptography in embedded systems (secure messaging, AES/HMAC, key usage), secure elements / SAM integration, secure boot, and OTA.
• Tools: Debugging skills (JTAG/SWD, logic analyser) and embedded CI/CD experience.
• Languages: Good German and strong English skills.
• Nice to have: Deep Mifare DESFire EVx personalization experience, low-power design, mobile platform SDKs/APIs, knowledge of access control standards, security compliance (CRA, NIST, ETSI), and familiarity with Git, Jira, and embedded test frameworks.

OUR OFFERING

• Modern Tech Stack & Impact // Work in a high-innovation, security-relevant environment with professional test infrastructure and the latest tools.
• Work-Life-Balance // Flexitime model including time off in lieu, remote work possible (1 day/ week), 30 days vacation without probationary period ban.
• Growth & Development // Structured & inspiring onboarding process, hands-on training, access to Busuu, Allegion Academy & LinkedIn Learning, mentoring on development and career paths
• Sustainable mobility // Cost-effective leasing of job bikes and e-bikes
• Health // €30 gross fitness allowance per month, employee assistance program for all life issues, free drinks & fresh fruit.
• Family & More // Up to €250 gross childcare allowance per month, company pension subsidy (€40 plus 20% of the conversion amount), exclusive employee discounts
• Culture // Inspiring spirit, flat organizational structures, a bright team from 17 nations, great helpfulness & cohesion, many great events

Sounds interesting?

Then Lea Tikvic is looking forward to getting to know you! If you have any further questions, please contact us

SimonsVoss Technologies GmbH | Feringastraße 4

85774 Unterföhring | Germany | Phone +49 89 99228 0

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#Engineering #AccessControl #FirmwareEngineering #TechJobs #JobsMunich

Not sure if your experience is a perfect fit for the job?

At SimonsVoss, we are committed to creating a diverse, inclusive, and authentic workplace. So, if you're interested in this position, but your experience doesn't perfectly match everything in the job description, you should still apply. You may be just the right candidate for this position.

We celebrate who we are!

SimonsVoss is a proud part of the international Allegion group—a global security network. Together with Allegion, we are committed to diverse and inclusive workplaces. We consider all applicants, regardless of experience, appearance, national origin, religion, age, gender, gender identity, disability, sexual orientation, or other legally protected characteristics.

© Allegion plc, 2014 | Block D, Iveagh Court, Harcourt Road, Dublin 2, Co. Dublin, Irland

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