Sr. Test Automation Engineer; SIL​/HIL Infrastructure

Sunnyvale, United States

42dot Full-time

42dot is a mobility AI company committed to solving mobility challenges with software and AI. As the Global Software Center of Hyundai Motor Group, 42dot pioneers the future of mobility by advancing the development of software-defined vehicles.

We develop safety-first, user-centric software-defined vehicle technologies that deliver the latest performance through continuous updates like smartphones. By advancing software and AI technology, 42dot envisions a world where everything is connected and moves autonomously through a self-managing urban transportation operating system.

As a Senior / Staff Test Automation Engineer you will design, develop, and execute automated test frameworks for complex automotive Electronic Control Units (ECUs) and virtual ECUs (vECUs). This role bridges the gap between low-level firmware and high-level vehicle applications. You will own the end-to-end automation pipeline across Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) environments, which includes building custom HIL testing stations from scratch.

Operating within a GNU/Linux ecosystem, you will investigate complex system requirements to develop robust, fail-safe test content for our next-generation Software-Defined Vehicle (SDV) platform.

• Design, build, and maintain scalable automated test frameworks and scripts for embedded automotive systems using Python and C/C++.
• Configure and build custom physical HIL test benches from the ground up, integrating real vehicle ECUs with simulated real-time environment models.
• Analyze and interpret technical specifications to author comprehensive automated test suites, actively tracking down gaps in system requirements.
• Execute automated test suites across SIL, MIL, and HIL setups.
• Analyze test captures, isolate low-level system failures, and generate detailed engineering reports.
• Validate automotive communication networks, network topologies, and diagnostic routing (e.g., CAN-FD, LIN, Automotive Ethernet, UDS, DoIP).
• Integrate automated test loops directly into Git-driven CI/CD pipelines (such as Git Lab CI or Jenkins) to support high-frequency regression farm execution.
• Partner with Firmware, Systems Architecture, Quality, and TPM teams to define test specifications and maintain complete ASPICE-compliant requirement traceability.

• Education:
  
  Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field.
• Experience:
  
  5+ years (Senior) or 8+ years (Staff) of hands‑on experience in test automation for high-integrity embedded systems.
• Expert-level proficiency in Python and Bash scripting, alongside a practical reading knowledge of C for code-level debugging.
• Direct experience architecting or heavily extending modern pythonic test frameworks (such as Pytest or OpenHTF).
• Experience with Docker.

• Advanced user-level comfort navigating, configuring, and scripting within GNU/Linux environments.
• Advanced user-level with Git and modern branch management strategies.
• Deep technical understanding of automotive network protocols (CAN, LIN, Ethernet).

42dot does not accept unsolicited resumes and will not pay fees for any such submissions. Equal Opportunity Statement

42dot is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status.