About Epirus
Epirus is a high-growth technology company dedicated to overcoming the asymmetric challenges inherent to the future of national security. Epirus' flagship product, Leonidas, is a software-defined system built using intelligent power management techniques which allow power-hungry systems to do more with less.
Job Summary:
We're looking for a Senior Software Development Engineer in Test with solid experience testing web-based UIs. This is a great opportunity to help define our end-to-end automation stack, joining a team of skilled software engineers developing across the full stack down to bare metal. We're tackling new and critical problems, building products ranging from energy weapons to AI-powered sensors and drone swarm defense. As we enhance, scale, and deploy our systems, we need SDETs who are eager to learn, contribute meaningfully, and grow their skills alongside a talented team.
Responsibilities:
- Building and maintaining UI Test Automation infrastructure
- Developing and maintaining a suite of UI driven end-to-end tests
- Ensuring execution environments are maintained including simulation, HIL and on system
- Building out automated test run infrastructure and monitoring CI/CD
- Leveraging AI tooling to improve our automated testing process including metrics and reports
- Documenting tests, organizing test reviews and communicating test coverage clearly to stakeholders
- Assisting with our UI release pipeline and release documentation
Basic Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience
- Minimum of 5 years of professional software development in test, test automation, or software engineering experience
- Experience building and maintaining end-to-end automated test suites for web-based applications
- Strong working knowledge of JavaScript and TypeScript
- Experience testing React applications and modern front-end architectures
- Experience with automated testing in CI/CD environments, including test execution, failure triage, and reporting
- Experience developing test plans, test cases, and coverage strategies aligned to product and engineering requirements
- Experience working with cross-functional teams to validate features, triage issues, and improve product quality
- Strong written and verbal communication skills, including communicating test status, release risk, and quality outcomes to stakeholders
Preferred Skills and Experience:
- Experience testing across simulated, hardware-in-the-loop, or production-representative environments
- Hands-on experience with Playwright UI automation and regression testing
- Experience building/maintaining test infrastructure and tooling
- Familiarity with release validation, release documentation, and signoff processes
- Experience monitoring and improving CI health, including flaky test reduction and test stability improvements
- Experience with unit, integration, and API testing frameworks such as Vitest, Jest, or similar tools
Additional Requirements:
- This is a hybrid role based in Torrance, CA, with an expectation of 4 days per week in the office to support team collaboration and cross-functional alignment.
ITAR REQUIREMENTS:
- To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
At Epirus, you’ll work with technical peers and great people—and get first crack at some of the defining technology challenges of our time. Here, “impossible” is just a challenge. We're a diverse, fast-growing team of change-makers fueling the future of energy with revolutionary solutions. Join us and rewrite the rules.
Skills Required
- Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience
- Minimum 5 years of professional experience in software development in test, test automation, or software engineering
- Experience building and maintaining end-to-end automated test suites for web-based applications
- Strong working knowledge of JavaScript and TypeScript
- Experience testing React applications and modern front-end architectures
- Experience with automated testing in CI/CD environments, including test execution, failure triage, and reporting
- Experience developing test plans, test cases, and coverage strategies aligned with product and engineering requirements
- Experience working with cross-functional teams to validate features, triage issues, and improve product quality
- Strong written and verbal communication skills, including communicating test status, release risk, and quality outcomes to stakeholders
- U.S. citizenship, lawful permanent residency, protected-individual status, or eligibility to obtain required ITAR authorizations
- Experience testing across simulated, hardware-in-the-loop, or production-representative environments
- Hands-on experience with Playwright UI automation and regression testing
- Experience building or maintaining test infrastructure and tooling
- Familiarity with release validation, release documentation, and signoff processes
- Experience monitoring and improving CI health, including flaky-test reduction and stability improvements
- Experience with unit, integration, and API testing frameworks such as Vitest or Jest
Epirus Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Epirus and has not been reviewed or approved by Epirus.
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Affordable Benefits — Medical coverage is presented as up to 100% employer‑paid on some plans, with dental/vision and mental‑health support included. Bundled wellness access (Calm, gyms) and no‑cost onsite meals further increase perceived total value without added employee expense.
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Leave & Time Off Breadth — Time away is framed as generous, with unlimited PTO and 19 paid holidays including a winter break. Parental leave is also highlighted, signaling broad coverage for different life events.
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Retirement Support — A 401(k) match of 6% is explicitly offered. This is positioned as competitive and contributes meaningful long‑term value.
Epirus Insights
What We Do
Epirus is a high-growth technology company developing solid-state, software-defined directed energy systems that enable unprecedented counter-electronics effects and power management solutions to optimize power efficiency in defense and commercial applications. With a constant emphasis on innovation, we are redefining the future of power to bring tomorrow’s capabilities to life, today. To deliver on our mission, we are always looking for problem solvers, changemakers and innovators to join our fast-growing team. People are the most important part of Epirus – and always come first. We don’t believe in the word impossible and are always asking “why not” as work to usher in a new paradigm of power efficiency. Our fast-growing team is agile, creative, and innovative. We support a culture of constant learning and sense of belonging among our team members and know that mentorship matters. We embrace diversity, equity, and inclusion in the workplace and beyond. Visit our website to learn more. www.epirusinc.com
Why Work With Us
We're a people-first culture that ensures every employee is heard and has the opportunity to grow. At Epirus, we're using cutting edge technology and provide the ability to work with passionate team members. We truly believe that failure is not a setback, but an opportunity. We move fast and build cool things, come join us!
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