Senior Software Engineer in Test
Mainspring Energy2 months ago
Base Salary
$135k - $159k/yr
Responsibilities
- Design and scale robust automated test frameworks and CI/CD integrations.
- Create workflows to validate complex hardware/software integrations and resolve system-level bottlenecks.
- Lead failure analysis and risk mitigation to improve test stability and environment reliability.
- Drive risk-based testing strategies covering critical-path functionality.
- Perform technical test case design and deep-dive manual exploratory testing.
- Engage with developers to understand new features and technologies and create automated testing solutions.
Requirements
- Bachelor’s degree in Computer Science or a related field with 6+ years of professional experience, or a master’s degree with 5+ years in an SDET or Software Engineering role.
- Proven experience leading complex automation projects from design through implementation.
- Foundational ability to perform deep-dive manual exploratory testing and technical test case design.
- Strong hands-on experience developing in Python and C++.
- Ability to work across diverse codebases and use professional judgment when leveraging AI coding assistants.
- Self-directed engineering approach and experience treating test infrastructure as a first-class product.
About Mainspring Energy
Mainspring Energy builds fuel-flexible linear generators that provide onsite, low-emissions electric power for utilities, data centers, and large enterprises. The privately held company, founded in 2010 and based in Menlo Park, CA, began commercial shipments in 2020 and now has hundreds of megawatts in development and field operations. It sells and deploys generator systems and partners with energy leaders such as AEP, NextEra Energy Resources, and Schneider Electric.