Senior LV Diagnostics Engineer - EV Energy Systems

Rivian Automotive; Hayward (CA); On-site; USD 107,000 - 134,000; Full time

Job summary

Rivian seeks a Senior Diagnostic Engineer to join the Service Operations Diagnostics team in Hayward, CA. You will lead LV electrical diagnostics development for EV systems, coordinate software-diagnostics work, and ensure robust validation and field readiness across vehicle platforms.

You will design tests, analyze vehicle telemetry, collaborate with software, hardware and manufacturing teams, and apply AI tools to improve diagnostic content and tooling.

Qualifications

• BSc or MSc in a relevant engineering discipline.
• 3+ years of experience with Low Voltage Systems in the automotive or comparable industry.
• Experience with C++, Python, SQL, Linux, or similar technologies at a comprehension level.

Responsibilities

• Act as service engineering’s subject matter expert in BEV energy distribution, including DCDC/DCAC converters, 12V batteries, wiring, power mode control, and the system physical and digital architecture.
• Translate complex software code and requirements into clear technician diagnostic information and vehicle repair procedures.
• Represent Service as the primary liaison to the software domain, developing a working understanding of the codebase deep enough to partner effectively with Software Development; ensure software teams deliver the tools, processes, features, and bug fixes Service needs.
• Set field strategy based on DTCs to increase diagnostic accuracy and reduce repair time.
• Design software requirements for new DTCs to close gaps in issue detection.
• Use AI coding tools to build and modify skills files or generate small applications that support diagnosis of complex vehicle issues.
• Develop and continuously improve diagnostic content, testing procedures, evaluation logic, and automated scripts within Rivian's onboard and offboard diagnostic ecosystem.
• Partner with Software Development, Requirements Engineering, and Quality/Failure Analysis to design, develop, and refine onboard diagnostic software solutions that root-cause individual vehicle issues.
• Create database queries and dashboards and convert this information into closed-loop feedback for hardware, software, and manufacturing design teams to drive continuous improvement.
• Consult with design engineers to resolve vehicle issues field teams and first-level escalation support cannot solve with available diagnostic resources, and feed learnings back into future diagnostics.
• Design test plans for diagnostic procedures, service calibration, and IT applications covering both expected success paths and failure/fault conditions, in coordination with software, hardware, and field technicians.
• Flash test assets to execute validation on target vehicles.
• Debug issues uncovered during test execution and drive them to root cause.
• Capture and analyze logs to verify diagnostic behavior and identify gaps in coverage.
• Produce and maintain technical documentation that maximizes diagnostic and service efficiency for the Service team.
• Monitor hardware performance across the fleet, initiating individual vehicle repairs, adjusting maintenance schedules, and defining software improvements to enhance product performance.

Skills

Low Voltage Systems

C++

Python

SQL

Linux

AI coding tools

CAN/Ethernet tools

Education

BSc or MSc in Engineering

Tools

Vector CANalyzer

Wireshark

Claude

Devin

Cursor

Job description

Rivian seeks a Senior Diagnostic Engineer to join the Service Operations Diagnostics team in Hayward, CA. You will lead LV electrical diagnostics development for EV systems, coordinate software-diagnostics work, and ensure robust validation and field readiness across vehicle platforms.

You will design tests, analyze vehicle telemetry, collaborate with software, hardware and manufacturing teams, and apply AI tools to improve diagnostic content and tooling.