Job
- Level
- Senior
- Job Field
- Embedded
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Unterföhring
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will develop C++ firmware for ARM Cortex-M microcontrollers, integrate smartphone-based credentials, and implement security protocols for mobile applications and embedded systems.
Job Technologies
Your role in the team
- 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).
- 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.
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Our expectations of you
Qualifications
- Security: Familiarity with applied cryptography in embedded systems (secure messaging, AES/HMAC, key usage), secure elements / SAM integration, secure boot, and OTA.
- Languages: Good German and strong English skills.
Experience
- 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: Practical experience with RFID / NFC (ISO 14443, Mifare DESFire EVx preferred).
- Mobile Credentials: Erfahrung mit Smartphone-Authentifizierungsprozessen (Mobile Wallets, HCE, Provisioning).
- Tools: Debugging skills (JTAG/SWD, logic analyser) and embedded CI/CD experience.
- 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.
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What we offer
- 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 company 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.
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Benefits
Health, Fitness & Fun
Food & Drink
Work-Life-Integration
Topics that you deal with on the job
Job Locations
This is your employer
Allegion
Allegion PLC, a Dublin-based company in the security technology sector, operates globally with around 10,000 employees and generates annual revenue of 2 billion US dollars. Its products are distributed to over 130 nations worldwide.
Description
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Handcraft, Trade
Senior Firmware Developer
- Location
- Unterföhring
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
