{"id":118924,"url":"https://alion.io/job/shield-ai-power-electronics-electrical-engineer-i","title":"Power Electronics - Electrical Engineer I","company":{"id":50,"name":"Shield AI","domain":"shield.ai","url":"https://alion.io/company/shield-ai","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":73,"open_postings":82,"ghost_share":0,"stale_share":0.854,"repost_share":0.012,"time_to_fill_p50_days":65,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Hardware","role_family":"Hardware","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seattle, United States","San Diego, United States","Dallas, United States","Boston, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":81456,"max":122184,"currency":"USD","period":"year","gross":null,"usd_annual":122184},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"KiCad","optional":false}],"status":"live","first_seen_at":"2025-12-11T16:23:38Z","employer_posted_date":"2025-12-11","last_verified_at":"2026-10-29T12:02:10Z","board_verified":true,"closed_at":null,"days_open":321,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":321},"description":"Job Description:\nShield AI is redefining autonomous aviation with cutting-edge AI and GPS/RF-denied navigation technologies. Now, we’re building our next-generation aircraft, XBAT, like no other-one that will push the boundaries of innovation and performance.\nWe are looking for an entry-level Power Electronics Engineer who is excited to help bring X-BAT’s next-generation power systems to first flight. In this role, you will own a meaningful project directly tied to our power architecture critical path, while receiving direct mentorship from senior power and electrical engineers. We value first-principles thinking, hands-on engineering, and extreme ownership.\nWhat you'll do:\nOwn a power electronics design that directly impacts X-BAT system performance and major flight test milestones, supported by a senior engineer who provides technical guidance and review.\nContribute to the full hardware lifecycle including concept development, modeling, worst-case analysis, schematic capture, simulation, prototyping, bring-up, verification, integration, and flight test support.\nDesign and analyze low-voltage and high-voltage power systems including DC-DC converters, inverters, motor controllers, battery systems, power distribution, and protection circuits.\nDesign systems across power ranges from 10 kW high-power applications while balancing efficiency, thermal constraints, EMI/EMC performance, and reliability.\nPartner with ECAD engineers on PCB layout for power density, thermal performance, EMI mitigation, and manufacturability.\nExecute hands-on board bring-up, debug, root-cause analysis, and validation using oscilloscopes, power supplies, electronic loads, and other test equipment.\nSupport environmental, stress, and qualification testing (HALT, vibration, temperature cycling) for aerospace-grade reliability.\nCollaborate closely with Mechanical, Embedded, Software, Production, and Aircraft teams to ensure robust system integration and clear interface ownership.\nDrive disciplined engineering practices including documentation, risk reduction, and closing the loop between analysis and test results.\nRequired qualifications:\nB.S. in Electrical Engineering or equivalent.\nStrong technical fundamentals in circuits, electronics, and power systems.\nHands-on experience (coursework, labs, clubs, or internships) with power electronics such as converters, motor drivers, batteries, or high-power systems.\nFamiliarity with electrical design tools (Altium, KiCad, etc.).\nExperience using lab equipment such as oscilloscopes, power supplies, e-loads, and 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