Principal Software Integration Engineer Lead at Thompson Software Solutions leading integration activities for defense - focused projects. Collaborating in high - performing teams to deliver innovative solutions in software engineering.
About the role
- SDET responsible for maintaining automated testing infrastructure across AI security products. Collaborate with engineers to ensure high quality and effective testing across platforms.
Responsibilities
- Design, implement, and maintain test frameworks for our UI, browser extensions, endpoint agent, or backend services - you'll need to apply yourself wherever QA is needed
- Build and run cross-platform tests on Windows, macOS, and Linux - set up test environments to validate our endpoint agent doesn't break user systems
- Expand, run, and investigate load tests to validate system behaviour at scale and ensure we can handle growth
- Investigate bugs, write failing tests, get them fixed - write tests that expose the issue, fix it yourself if you can, or partner with engineers to verify the fix
- Integrate tests into CI/CD - add tests to GitLab CI pipelines, set up quality gates and detailed test reports, keep tests fast and reliable
- Monitor, triage, and improve - file detailed bugs in Jira, escalate critical issues quickly, track test coverage, shape the QA roadmap
Requirements
- 5+ years as an SDET building and maintaining automated test infrastructure
- Strong programming skills in at least one of TypeScript, Java, or Rust
- Experience with modern test frameworks and willingness to learn new ones - at Harmonic we use Jest, Playwright, Bun test, Vitest, JUnit5, Selenium, and Rust's native testing framework (cargo test)
- Cross-platform testing experience on Windows, macOS, and Linux - comfortable setting up test environments, debugging platform-specific issues, and working with VMs or real machines
- CI/CD pipeline knowledge - you know how to integrate tests into GitLab CI (or similar), set up quality gates, and make test reports useful
- Solid debugging skills - comfortable investigating bugs, reproducing issues, and working with engineers to get them fixed
- Proficiency with standard tooling - Git, code review, and CI/CD systems
- **Desirable:**
- Experience with Jira, Notion, GitLab, OpenSearch, Swagger, Grafana, AWS, Figma, or Sentry (or similar tools)
- Comfortable using AI tools to speed up workflows and boost productivity
Benefits
- Competitive pay and meaningful equity with a direct stake in Harmonic’s success
- Comprehensive benefits, pension plan, generous PTO, and flexible hybrid work
- A small, passionate team that values transparency, creativity, and learning
- Thoughtful leadership that cares deeply about growth, impact, and people
- Annual global offsites (past trips include Lisbon and Nashville)
- The chance to directly shape both our product and our culture as we build a category-defining company
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
No Education Requirement
Tech skills
Location requirements
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