
RIVR · Zürich
RIVR, part of Amazon is a robotics company pioneering Physical AI through real-world doorstep delivery. Founded in 2024 as an ETH Zurich spin-off, RIVR develope...
RIVR, part of Amazon is a robotics company pioneering Physical AI through real-world doorstep delivery. Founded in 2024 as an ETH Zurich spin-off, RIVR developed wheeled-legged robots designed to operate in complex, unstructured environments such as stairs, gates, doors, and uneven urban terrain. We believe that achieving general physical intelligence requires solving real customer problems in the real world, where robots can learn from rich operational data at scale.
Following our acquisition by Amazon in March 2026, we are continuing this mission with greater reach and speed. By combining custom robot hardware, onboard autonomy, and cloud-based coordination, RIVR, part of Amazon is building the next generation of safe, reliable autonomous robots for last-mile delivery
Job Description
As a Senior Electronics Engineer, you will spearhead the design, development, and testing of our robots' custom electronics. Your expertise will encompass power electronics (battery management system, motor drivers), digital electronics (PCBA design, edge computing, microprocessor boards) firmware, communication protocols, and interfaces, ensuring that our robots not only meet specific application requirements but are also scalable and cost-effective for mass production. We value candidates with a proven track record of transitioning projects from prototyping and proof-of-concepts to MVPs, full products, and ultimately, mass production. If you are driven to innovate in robotic design, we invite you to join our team and help shape the future of intelligent robotics.
RIVR, part of Amazon is a robotics company pioneering Physical AI through real-world doorstep delivery. Founded in 2024 as an ETH Zurich spin-off, RIVR developed wheeled-legged robots designed to operate in complex, unstructured environments such as stairs, gates, doors, and uneven urban terrain. We believe that achieving general physical intelligence requires solving real customer problems in the real world, where robots can learn from rich operational data at scale. Following our acquisition by Amazon in March 2026, we are continuing this mission with greater reach and speed. By combining custom robot hardware, onboard autonomy, and cloud-based coordination, RIVR, part of Amazon is building the next generation of safe, reliable autonomous robots for last-mile delivery Job Description As a Junior Electronics Engineer, you will spearhead the design, development, and testing of our robots' custom electronics. Your expertise will encompass power electronics (motor control, power distribution), digital electronics (PCBA design, microprocessor) firmware and communication protocols, ensuring that our robots not only meet specific application requirements but are also scalable and cost-effective for mass production. We value candidates with a proven track record of transitioning projects from prototyping and proof-of-concepts to MVPs, full products, and ultimately, mass production. If you are driven to innovate in robotic design, we invite you to join our team and help shape the future of intelligent robotics.
ABOUT US Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected. About the Role Power electronics are the bottleneck on every next-generation UAS airframe we build: motor controllers, gate drivers, and DC-DC stages are what define flight time, payload, thermal envelope, and field reliability. We're looking for a senior IC to own the analog power chain end-to-end across our UXV platforms: from MOSFET commutation simulation through PCB layout to lab validation. You will be the technical reference on power electronics inside our Lausanne engineering hub, unblocking propulsion, airframe, and embedded teams in parallel as we scale from prototype cadence to multi-platform deployment. This is a builder role, not a research seat. You ship hardware. Responsibilities * Power Stage Architecture: Lead motor-controller and DC-DC topology across fixed-wing, multicopter, and hybrid UXV platforms. Translate mission constraints into power-chain specification. * MOSFET Commutation & Gate-Drive Design: Own the analog switching design: dead-time tuning, gate shaping, switching-loss vs EMI vs thermal trade-offs. * Multi-fidelity Simulation: Deploy the full stack: analytical loss budgeting, transient SPICE (LTspice), system-level modelling in PLECS or Simulink. * BLDC Drive Stages: Design three-phase inverters with integrated current sensing, protection, Trapezoidal and FOC-aware hardware interfaces. * High-Power-Density PCBA: Lead schematic and layout in Altium or KiCad with thermal, parasitics, and EMC engineered in from the first revision. * EMI / EMC Engineering: Drive pre-compliance, filter design, and root-cause debug under flight-representative loads. * Prototype-to-Production: Take motor-controller PCBAs through revision discipline, DFM, and qualification - closing the loop on field returns. * Lab Validation: Execute bench characterization (power analysers, oscilloscopes, thermal imaging, double-pulse testing) and reconcile against simulation. * Firmware & Controls Interface: Partner with embedded and propulsion on FOC tuning, current-sense calibration, and the hardware/firmware compensation boundary. * Design Authority & Mentorship: Set the bar via design-decision records and reference designs. Mentor 1–2 junior engineers. Candidate Requirements * MSc or PhD in Electrical Engineering, Power Electronics, or equivalent. * 5+ years of hands-on R&D experience on motor drives, BLDC/PMSM controllers, or high-power-density power electronics. * Deep working mastery of MOSFET commutation design: gate-driver selection, dead-time tuning, switching transitions, loss budgets. * Proven ownership of at least one motor-controller PCBA shipped from prototype through production (or pre-production qualification): ideally on drone, robotics, eVTOL, or automotive platforms. * Fluency in simulation (LTspice, PLECS, or Simulink) and PCB design (Altium). * Strong, hard-earned intuition for EMI / EMC design and debug. * Lab-bench discipline: you've personally debugged what simulation missed. * Comfort with scale-up iteration speed and end-to-end ownership. * English fluent (working language); French is a nice-to-have, not a requirement. Bonus points for: GaN / SiC experience, safety-critical design exposure , applied control theory implemented in hardware, exposure to defense, aerospace, or UAS programmes. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.
Därför är detta jobb för dig Vi tror att du har ett stort intresse IoT och en passion för problemlösning. Hårdvaran som ska konstrueras kan vara alltifrån kraftfulla plattformar med Embedded Linux för Edge AI tillämpningar till enklare kostnadseffektiva realtidsplattformar. Som konsulter hjälps vi åt där det behövs och beroende på uppdrag jobbar vi in-house- eller ute hos kund. I nuläget arbetar ca 50% av våra konsulter in-house med ett 10-tal olika projekt. Bland våra kunder finns allt från små start-up till globala företag. Du har passion för ny teknik och digital elektronik med flera års erfarenhet, gärna med intresse för hårdvarunära programmering. Du har erfarenhet från olika branscher, såsom industri, försvar, fordon och medicinteknik. Vidare har du kunskap om olika micro controllers, realtidssystem, kraftdesign etc. Du kommer att arbeta inom affärsområdet Software & Cloud, där vi hjälper kunder att utveckla framtidssäkra, storskaliga dator- och mjukvarusystem – från inbyggda system och elektronik till datadrivna företagsapplikationer, AI och molnbaserade lösningar. Arbetsuppgifter Utveckla innovativ elektronik för att bredda vårt erbjudande och möta våra kunders tekniska behov. Utforska och implementera nya teknologier och lösningar inom elektronikutveckling. Arbeta i tvärfunktionella team för att lösa komplexa problem och leverera spetslösningar till kunder inom olika branscher. Ta en aktiv roll i hela produktutvecklingscykeln, från koncept till färdig produkt. Kvalifikationer Konstruktör digital och analog elektronik inkl kraftdesign EMC och CE-märkning Micro controllers och inbyggda system Embedded Linux C programmering Trådlös kommunikation, IoT Talar och skriver svenska och engelska flytande Relevant utbildningsbakgrund Körkort, B En spännande resa med Knightec Group Knightec Group är idag en av Norra Europas ledande strategiska partners inom produkt- och digital tjänsteutveckling – hur häftigt är inte det? Genom att förena ingenjörskompetens, digital expertis och affärsförståelse hjälper vi våra kunder att omvandla ny teknik till verkliga lösningar som skapar värde. Vi arbetar i skärningspunkten mellan affärsstrategi och teknikutveckling och stöttar våra kunder genom hela resan – från de första idéerna till utveckling, implementering och vidare utveckling. På Knightec Group samlas människor med olika perspektiv, erfarenheter och specialistområden. Tillsammans skapar vi innovation som gör verklig skillnad – för företag, människor och samhället i stort. För våra medarbetare innebär det stora möjligheter att vara med och forma framtidens lösningar genom meningsfulla projekt i teknikens absoluta framkant. Här får du inte bara utvecklas och växa i din roll – du blir också en del av ett team där nyfikenhet, samarbete och modet att utmana driver oss framåt. Låter det som platsen för dig? Häng med på vår fortsatta resa! Praktisk information Detta är en tillsvidareanställning med en provanställning på sex månader, placerad på vårt kontor i Göteborg, Lindholmsallén 2. Startdatum är så snart som möjligt eller enligt överenskommelse. Skicka in din ansökan så snart som möjligt. Om du har några frågor om tjänsten är du välkommen att kontakta Victoria Olsson, Talent Acquisition Specialist. Observera att vi, på grund av GDPR, endast tar emot ansökningar via vår karriärsida. Vi ser fram emot att höra från dig!