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Test Engineer

1XSan Carlos, CA
Onsite

About The Position

1X is building humanoid robots for home use, aiming to free up people's time by handling chores and tasks. This involves solving complex challenges in robotics, AI, and manufacturing simultaneously, at scale, and in a safe form factor for family environments. The company has been working on these problems since 2014 and is now focused on shipping its flagship home robot, NEO, which is designed to move, learn, and operate alongside people in the real world. 1X is scaling and hiring intentionally, seeking individuals inspired by the prospect of changing how humans spend their time through safe innovation.

Requirements

  • 3+ years of experience in test engineering, systems integration, robotics, or a related engineering discipline.
  • Strong programming proficiency in Python, C++, or both.
  • Experience working with embedded systems, microcontrollers, and communication protocols such as CAN, SPI, I2C, or UART.
  • Hands-on experience using laboratory equipment including oscilloscopes, logic analyzers, multimeters, and power supplies.
  • Experience using version control systems such as Git in collaborative engineering environments.

Nice To Haves

  • Experience developing and maintaining automated test frameworks and validation infrastructure.
  • Experience with Linux-based development environments and real-time operating systems.
  • Familiarity with hardware-in-the-loop testing, robotic systems validation, or electromechanical product testing.
  • Experience designing test fixtures using CAD tools.
  • Familiarity with agile development methodologies and project management tools.

Responsibilities

  • Develop and maintain automated test frameworks that improve validation coverage and reduce manual testing effort across hardware, firmware, and software systems.
  • Build scalable hardware-in-the-loop and system-level validation environments that accurately represent real-world operating conditions.
  • Identify, reproduce, and help resolve complex multidisciplinary failures before they impact product milestones or deployments.
  • Maintain traceability between product requirements, test execution, and validation results across development programs.
  • Generate high-quality performance, reliability, and characterization data that informs engineering decisions and product readiness.

Benefits

  • Comprehensive medical, dental, and vision coverage
  • Generous paid time off, company holidays, and parental leave
  • 401(k) plan with company match (100% on the first 3% of contributions, 50% on the next 2%)
  • Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA) options
  • Commuter benefits (transit and parking)
  • Short-term and long-term disability, and life insurance
  • Employee Assistance Program (EAP) for mental health, financial, and personal support
  • Onsite snacks and catered lunches

Career Resources

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