Senior Electronics Engineer – Functional Safety, RIVR

pRIVR, an Amazon company, is building Physical AI by deploying autonomous robots for real-world doorstep delivery. Operating daily in diverse urban environments, RIVR's robots continuously learn from and navigate the millions of scenarios encountered during deliveries. By owning the full stack from software to hardware, RIVR is purpose-built for safety, reliability, and the customer from day one. /p pAs a Senior Electronics Engineer – Functional Safety, you will own the hardware-level Functional Safety design for our robots’ custom electronics. You will design fault‑tolerant circuits at the schematic and PCB level — implementing redundant architectures, hardware diagnostics, and safe‑state mechanisms — and perform the quantitative reliability analysis to substantiate that your designs meet the required Safety Integrity Level. This is a hands‑on circuit design role, not a systems‑level safety concept or process management position. /p h3Key job responsibilities /h3 ul liDesign fault‑tolerant circuits for safety‑critical subsystems, selecting appropriate safety architectures (e.g., 1oo2, 1oo2D) based on the required SIL target. /li liImplement hardware diagnostic and monitoring mechanisms to detect dangerous failures. /li liDesign circuits that enforce a defined safe state when a fault is detected. /li liApply Common‑Cause Failure mitigation techniques at the component and PCB level. /li liPerform FMEDA on your own schematics — identifying failure modes per component and calculating Safe Failure Fraction (SFF) and Diagnostic Coverage (DC). /li liBuild Reliability Block Diagrams and compute SIL metrics to verify your designs meet the target. /li liSelect and derate components based on failure rate data, mission profiles, and expected lifetime. /li liAdvise system architects on hardware safety constraints and review PCB layouts for safety compliance. /li liCollaborate with electronics, firmware, and systems engineering teams to integrate safety functions into the overall robot design. /li liCreate and maintain Functional Safety documentation for your hardware modules. /li /ul h3BASIC QUALIFICATIONS /h3 ul li5+ years designing electronics hardware for Functional Safety–certified products. /li liProven work under IEC 61508 (preferred), ISO 13849, or ISO 26262. /li liDelivered PCB‑level hardware that achieved SIL 2 or SIL 3 (or equivalent PL d/e, ASIL B–D) certification. /li liBackground in analog, power, and/or mixed‑signal circuit design. /li liHands‑on experience implementing safety architectures in schematics — not just block diagrams. /li liAbility to perform FMEDA and SIL metrics calculations on your own designs. /li liUnderstanding of failure rate data sources and component derating for reliability. /li liStrong problem‑solving skills and ability to debug fault‑tolerant hardware. /li liComfortable working cross‑functionally with firmware, mechanical, and systems teams. /li liMaster’s degree or higher in Electrical Engineering, Electronics, or a closely related field. /li /ul h3PREFERRED QUALIFICATIONS /h3 ul liExperience with safety‑rated ICs (safe supply supervisors, safety MCUs, smart drivers with diagnostic feedback). /li liHas contributed to or authored a Safety Manual for a hardware module. /li liFamiliar with Proven‑in‑Use argumentation for off‑the‑shelf components. /li liPCB layout skills relevant to safety (creepage/clearance, redundant channel routing). /li liExperience with circuit simulation (SPICE) to verify fault response behaviour. /li liExperience in robotics, automotive, aerospace, or medical device sectors. /li /ul #J-18808-Ljbffr