pWe are Senbiosys, also known as Velia after our first product, the Velia smart ring. A fast-growing Neuchâtel-based technology and product company dedicated to creating innovative solutions that empower people to live healthier and more connected lives. Our vision is to combine cutting-edge science with thoughtful design, delivering products and experiences that enhance well-being and longevity. We value curiosity, excellence and teamwork, and we are building a culture that thrives on innovation and trust. /ppPersonal health and wellness tracking is a dynamic and growing market. People want to understand their bodies better, using insights from signals such as heart rate and blood oxygen to build healthier habits and stay motivated. The challenge is to integrate sensors that measure these signals more accurately, without placing an excessive burden on the battery. /ppThat challenge is at the heart of what we do. We have developed a new, patented generation of photoplethysmography (PPG) sensors that use CMOS image sensor technology to build monolithic PPG sensors. They capture a high-quality signal with far less power, in a fraction of the space of conventional approaches. In the Velia ring, our patent pending 360° sensor constellation, with 108 optical paths, tracks signals such as sleep, breathing and heart rhythm, and the app turns them into meaningful guidance instead of constant alerts. /ppEvery microamp matters in a ring. Our sensors make measurement efficient; the next challenge is turning that efficiency into outstanding battery life. That's where you come in. /ph3About the Role /h3pWe are seeking an experienced Battery Electronics Engineer to join our Electronics Engineering team in Neuchatel. This role will be responsible for defining, developing, validating, and optimising lithium-ion battery systems for consumer electronics and wearable products. /ppThe successful candidate will have a proven track record of taking battery and power electronics from concept through prototype, validation and mass production. They will act as the technical lead for battery-related development activities, working closely with battery suppliers, electronics engineers, firmware engineers, mechanical engineers, and manufacturing partners. /ppThis position is critical to delivering products with industry-leading battery performance, reliability, safety, and lifetime. /ph3Key Responsibilities /h3h3Battery System Ownership /h3ulliLead battery technology selection and specification for new consumer electronic and wearable products. /liliDefine battery performance requirements including capacity, energy density, cycle life, charging performance, operating temperature range, and safety requirements. /liliDevelop battery qualification plans and acceptance criteria. /liliOwn battery-related technical decisions throughout the product development lifecycle. /li /ulh3Battery Validation Reliability /h3ulliDesign and execute battery characterisation and validation programmes. /liliAnalyse battery performance under real-world use cases and environmental conditions. /liliDrive root cause investigations for battery-related issues during development, manufacturing, and field operation. /liliDefine and manage reliability, lifetime, and degradation testing. /liliEstablish battery performance metrics and monitoring strategies. /li /ulh3Battery Management System (BMS) Development /h3ulliSpecify and optimise battery management system architectures for lithium-ion powered products. /liliWork closely with hardware and firmware teams to implement: /liliState of Charge (SOC) estimation /liliState of Health (SOH) monitoring /liliCharging algorithms /liliProtection systems /liliPower management strategies /liliOptimise charging, discharging, and power consumption behaviour to maximise user experience and battery longevity. /liliSupport development of battery fuel gauging and calibration methodologies. /li /ulh3Electronics Development Support /h3ulliContribute to system architecture and power subsystem design. /liliDefine battery-related hardware requirements including: /liliPower path management /liliThermal monitoring systems /liliSupport PCB design reviews and validation activities. /liliCollaborate with firmware teams on power optimisation and battery control strategies. /liliAct as primary technical interface for battery suppliers and battery-related component vendors. /liliReview supplier test data, qualification reports, and manufacturing controls. /liliDrive supplier technical reviews and issue resolution. /liliSupport sourcing activities, supplier audits, and technology evaluations. /liliWork with manufacturing partners to ensure consistent battery quality and performance. /li /ulh3Product Development Manufacturing /h3ulliSupport products through EVT, DVT, PVT, and mass production phases. /liliDevelop manufacturing test and screening requirements for battery systems. /liliReview production data and drive continuous improvements. /liliSupport regulatory compliance and certification activities related to battery safety and transportation. /li /ulh3Required Experience /h3ulliBachelor’s or Master’s degree in Electronic Engineering, Electrical Engineering, Physics, Materials Science, or a related discipline. /lili5+ years of experience developing lithium-ion battery powered consumer electronics products. /liliDemonstrated experience delivering products from concept through mass production. /liliExperience specifying and qualifying rechargeable lithium-ion batteries for consumer electronics, wearables, or portable devices. /liliStrong understanding of battery degradation mechanisms, cycle life, and reliability engineering. /liliExperience working directly with battery manufacturers and suppliers. /liliHands-on experience with battery characterisation, test methods, and data analysis. /liliExperience defining battery qualification and validation plans. /liliStrong understanding of power electronics and embedded hardware design. /li /ulh3Preferred Experience /h3ulliExperience developing wearable devices, smart rings, smart watches, fitness trackers, or other highly space-constrained battery powered consumer or medical electronic products. /liliExperience with fuel gauge ICs and battery management ICs. /liliUnderstanding of lithium-ion cell chemistry selection and trade-offs. /liliExperience with thermal modelling and battery thermal management. /liliFamiliarity with battery safety standards and regulatory requirements. /liliExperience analysing battery field-return and reliability data. /li /ulh3Key Skills /h3ulliLithium-ion battery technology /liliBattery qualification and reliability testing /liliBattery Management Systems (BMS) /liliFailure analysis and root cause investigation /liliSupplier technical management /liliCross-functional collaboration /li /ulh3Success Measures /h3ulliAchievement of product battery life and runtime targets. /liliDelivery of battery systems meeting reliability and safety requirements. /liliSuccessful qualification and launch of battery-powered products. /liliReduction of battery-related field failures and warranty returns. /liliContinuous improvement of battery lifetime, charging performance, and user experience. /liliStrong supplier performance and technical partnerships. /li /ulh3What you can expect /h3ulliA flexible and dynamic working environment within a motivated startup team cumulating a vertical stack of technology from sensor chip to wearable health monitoring devices and associated algorithms and applications /liliDaily challenges as a member of a very motivated, multicultural team. /li /ul #J-18808-Ljbffr
Battery & Electronics Engineer
