Crowndental.AI is a startup building tech for preventive healthcare, starting in the dental field. We're early-stage, fast-moving, and hands-on. If you like short paths to decisions, real impact, and working on embedded systems that matter, we'd love to meet you. Senior Firmware Developer (f/m/x) What you'll work on: * Develop firmware for custom hardware platforms based on ARM Cortex-M microcontrollers * Implement and manage data transfer pipelines from image sensors to embedded processors * Develop bootloaders and handle connectivity features such as Wi-Fi and Bluetooth * Interface with sensors using low-level communication protocols (e.g., SPI, I²C, MIPI) for configuration and data acquisition * Collaborate closely with hardware and product teams to design and deliver reliable embedded systems * Design and execute test strategies to validate image acquisition performance under real-world conditions * Write efficient and maintainable firmware in C, using RTOS and low-level hardware interfaces * Contribute to the development of a scalable and maintainable embedded firmware architecture within the company What you bring: * 5 years of experience in firmware/embedded systems development * Proficient in C and real-time operating systems (RTOS) * Academic degrees are welcome, but skills matter more * Experience with wireless protocols like Wi-Fi and Bluetooth * Deep understanding of bootloaders, low-level peripherals, and system architecture * Proactive, independent, and creative problem solver * Fluent in English, and a collaborative team player Why join us? * We're building embedded tech that could reshape how preventive care is delivered - starting with smarter dental diagnostics * Your work directly shapes the product and the company * Located at Rennweg - easy to reach by public transport Salary The actual minimum salary is 4,485 EUR gross per month (on a 38.5-hour basis), the actual salary depends on your qualifications and experience. The salary is paid 14 times per year. The collective agreement Informationstechnologie, Datenverarbeitung (IT) applies. We're willing to overpay depending on your experience and skills. Overtime This is an all-in salary, which already includes any accrued overtime. We'd love to hear from you! Send your CV, portfolio, GitHub, or just a few words about what you've built. Let's build something meaningful together. About this job Employment type Full Time (Permanent employment) Salary from 4,485 EUR monthly Seniority level Professional Experience Place of work Wien Field of work IT, Data Processing Unfilled vacancies 1 vacancy unfilled for this position About the company Employer CrownDental.AI GmbH Number of employees 1 - 10 employees Locations Wien Details about this job Full Time (Permanent employment) * Monday to Friday * 38,5 hours Place of work * Wien Must-have skills * Embedded C * Firmware Development * Microcontrollers * RTOS (Real-Time Operating Systems) * Debugging * Bootloader Required languages * English C1 Nice-to-have languages * German B2 All infos regarding your application Required application documents: * Résumé