Senior Electrical Engineer I

iRhythm•San Francisco, CA

4d•$135,000 - $175,000•Hybrid

About The Position

Career-defining. Life-changing. At iRhythm, you’ll have the opportunity to grow your skills and your career while impacting the lives of people around the world. iRhythm is shaping a future where everyone, everywhere can access the best possible cardiac health solutions. Every day, we collaborate, create, and constantly reimagine what’s possible. We think big and move fast, driven by our commitment to put patients first and improve lives. We need builders like you. Curious and innovative problem solvers looking for the chance to meaningfully shape the future of cardiac health, our company, and your career About This Role: iRhythm is seeking a Senior Electrical Engineer to lead our sustaining engineering (end-of-life, cost-down) and failure analysis efforts for our existing products. This role is focused on troubleshooting, process optimization, and ensuring reliable, compliant production. The role will be a member of the Electrical Engineering design and test team within iRhythm’s R&D (Product Development) Department. The ideal candidate is detail-oriented, collaborative, and comfortable working across disciplines to sustain high-quality, life-critical devices.

Requirements

Bachelor’s degree in Electrical Engineering or a related field (Master’s preferred).
5–8 years of experience in electrical engineering, preferably in the medical device or other regulated industries.
Strong understanding of analog and digital circuit design, PCB design, and component selection.
Experience with component lifecycle management, EOL replacements, and cost reduction initiatives.
Familiarity with schematic and layout tools (Altium a plus) as well as circuit analysis and simulation tools (SPICE).
Hands-on lab experience including soldering, data acquisition, debugging techniques, and lab test equipment: multi-meters, oscilloscopes, power supplies, etc.
Experience with a scripting language for analyzing and plotting data (Python a plus).
Comfortable working with minimal supervision.
Excellent documentation, communication, and cross-functional collaboration skills.

Nice To Haves

Proficiency in root cause analysis tools (Fishbone, 5 Whys, FMEA) and statistical methods (SPC, DOE).
Experience conducting root cause analysis and implementing corrective actions (CAPA).
Familiarity with design controls, risk management, and verification/validation processes under FDA Regulation.
Understanding of 60601 testing standards.
Ability to thrive in a fast-paced environment and manage multiple sustaining initiatives concurrently.

Responsibilities

Lead electrical lifecycle activities for iRhythm’s commercialized medical devices.
Identify and qualify replacements for end-of-life (EOL) electrical components to maintain supply continuity.
Execute cost-down and design optimization projects to improve product reliability and reduce manufacturing costs.
Perform failure analysis for field and manufacturing issues; conduct root cause investigations.
Support design transfer activities and ensure smooth communication between R&D, Manufacturing, and Quality teams.
Review and update electrical schematics, PCB layouts, and BOMs as needed for sustaining changes.
Prepare and execute test protocols, test reports, and related medical technical documentation.
Update FMEA, Requirements, and other documentation per FDA design control requirements.
Foster a close relationship with iRhythm’s supply chain, manufacturing, and quality departments, as well as iRhythm’s external suppliers.
Provide technical mentorship to junior engineers.