Sr. Field Service Technician - Lake Forest, CA

Rivian•Lake Forest, CA

About The Position

Rivian is hiring an experienced Senior Field Service Technician to serve as a technical expert and leader supporting complex vehicle repairs and field operations. The role is based primarily at a service center, but may also involve remote work, travel to remote locations, or work at production plants as business needs require. The technician will diagnose and repair vehicles, provide advanced troubleshooting support, mentor junior team members, and drive continuous improvement and consistent repair standards. The position involves advanced work across high-voltage and low-voltage electrical systems, vehicle networks, chassis and drivability systems, thermal management and HVAC, and ADAS and body/glass integration. It also includes parts operations, repair documentation, root-cause analysis, customer and supplier engagement, and collaboration with field service, engineering, and leadership teams.

Requirements

Minimum age of 21 years.
Valid driver’s license with a clean driving record; no suspensions or revocations within the past 3–5 years.
Availability for a standard 40-hour workweek, including weekends, holidays, early mornings, evenings, or overnight shifts as required.
Ability to travel to regional locations or production plants as needed.
Proficiency in Windows/Mac environments, work order management systems, and specialized engineering or diagnostic documentation systems.
Physical ability to sit, stand, bend, kneel, and lift up to 50 lbs.
State mechanic certifications where required by jurisdiction.
3 to 8+ years of hands-on experience working on vehicle high-voltage systems and high-voltage diagnostic work.
Deep understanding of high-voltage architecture, HVIL, charging isolation, and safety power-down protocols using appropriate PPE; ability to diagnose complex high-voltage faults and isolation issues.
Advanced knowledge of automotive electronics, CAN and LIN bus communication, electrical schematics, and wiring harness repairs.
Mastery of chassis service, including alignments and braking systems, and advanced diagnosis of ABS, traction control, power steering, and NVH concerns.
Comprehensive knowledge of HVAC systems, coolant drain/fill operations, A/C machine use, 609 refrigerant certification, and thermal management diagnosis.
Proficiency in calibrating ADAS and replacing or adjusting sensors, body panels, and glass to manufacturer tolerances.

Nice To Haves

High school diploma, GED, or recognized equivalent credential.
Graduation from an accredited automotive repair school or vocational program.
Ability to drive a non-commercial truck and trailer.
5 to 8+ years of automotive repair experience, with extensive bumper-to-bumper diagnostic experience.
Experience in a leadership or supervisory role, such as Shop Foreman, Team Lead, or Technical Mentor.
Background in continuous improvement, process standardization, and escalation management.

Responsibilities

Perform bumper-to-bumper diagnostics, complex repairs, installations, and inspections at service centers and in field settings, including customer sites, mobile routes, and remote locations.
Provide advanced diagnostic guidance to field service teams and perform remote diagnostics or repairs when issues can be safely addressed without local vehicle access, using logged vehicle data and technical schematics.
Coach, mentor, and train junior technicians and internal partners; foster cross-functional collaboration and lead shop-floor technical problem-solving.
Use specialized diagnostic tools to resolve complex electrical, high-voltage, and network faults.
Conduct road tests to verify repair quality, champion continuous improvement, and promote high standards across repair workflows.
Oversee complex parts operations, including ordering, receiving, inventory management, and billing.
Create high-quality documentation in service support and engineering systems; provide root-cause analysis and actionable feedback to field service engineers and leadership.
Engage professionally with customers, suppliers, and internal teams during escalations and mobile outreach events.