(Senior) Embedded Software Engineer

Your mission We're looking for an experienced and curious Embedded Software Engineer to join our Product & Engineering team. At Seroton, we create hardware you can feel with your body. We transform sound, meditation, and breath into physical sensations, delivered through furniture people already sit and lie on. As our Embedded Software Engineer, you'll own the firmware that brings this experience to life. In this role, you'll take ownership of our firmware and embedded systems - the core layer that powers Seroton's unique relaxation experience. You’ll work closely with the Co-Founder and collaborate with Hardware, Production, Mobile Engineering and Product Experience. Part of a small, ambitious startup, you’ll have real impact from day one - shaping not just how our hardware works, but how our users feel. If you enjoy building thoughtful products, working hands-on with hardware, and turning firmware into real, physical experiences, this role is for you. Your Responsibilities Own Seroton’s embedded firmware stack end-to-end, from prototyping to testing to release and iteration Design and optimize embedded software for microcontroller-based systems with a focus on reliability and performanceDevelop and refine open- and closed-loop control systems for haptic and pneumatic actuationBuild deep expertise in our SMA-based hardware and continuously improve system behaviorImplement real-time sensor processing to enable interactive, user-facing experiences Your profile Several years of experience in embedded software development on real, shipped productsStrong C/C++ on resource-constrained microcontrollers; real-time thinking, RTOS experienceExperience in control engineering (PID and beyond), actuator or pneumatics work, BLE, or embedded signal processingComfort working at the intersection of hardware, firmware, and digital productsA degree in Electrical Engineering, Robotics, Mechatronics, Physics, or a related field (or equivalent experience)A hands-on, entrepreneurial mindset - comfortable with ownership, ambiguity, and fast iteration Curiosity for new technologies and digital product developmentA passion for building and creating, with confidence using AI tools in your daily workflow and orchestrating agents in order to increase product impactClear communication skills and enjoyment of cross-functional collaboration Why us? Early Stage & Growth: Join a fast-growing start-up and actively shape the experience backbone that future products and features will rely on - your work has a direct impact on our growth. Learning Curve & Ownership: Take on real projects, contribute your ideas, and receive regular feedback directly from the founders. This position is designed to evolve - more responsibility, more ownership, more impact over time. Impact: Work on a mission-driven product designed to help people reduce stress, improve mental recovery and wellbeing. Work-Life: A workplace with a diverse, international team offering flexible working models, 30 days of paid vacation, and the opportunity for workations. Office & Benefits: Located in the heart of Munich, within walking distance of Olympiapark and well connected to the central station (Hauptbahnhof). Free drinks, fruit, and coffee, as well as exclusive fitness offers (Wellpass). About Us Seroton is a fast-growing HealthTech startup redefining mental recovery. We merge the power of meditation and massage into an immersive, full-body experience—making relaxation effortless and effective. App-powered and device-enabled, our smart technology is seamlessly integrated into everyday furniture. The Seroton App acts as the intelligent bridge between hardware and software, delivering personalized experiences and serving as the personal companion for our users.