Sr. Software Engineer in Test; SDET

Job Title
:
Sr. Software Engineer in Test, Fin Tech

Location
:
Fremont, CA OR Bellevue, WA (Onsite Interview)

Duration
: 12 months

As a Senior Software Engineer in Test (SDET) on the Fin Tech Team, you will engineer the automated defense systems that protect Client’s financial backbone. We are moving beyond traditional static test scripts. Your mission is to architect intelligent, self-healing automation frameworks completely in Python that leverage Generative AI to dynamically build, validate, and inject test scenarios directly into our CI/CD pipelines.

You will work at the intersection of quality, Dev Ops, and AI, building tools that safeguard payments, reconciliation, billing, and invoicing systems handling billions in revenue. You will treat test infrastructure as production software, designing autonomous agents that analyze code changes, generate coverage for complex financial logic, and ensure 99.99% reliability without slowing down the release velocity.

• Architect and build next‑generation, object‑oriented test automation frameworks using Python that treat infrastructure‑as‑code and integrate deeply with backend microservices
• Engineer AI‑driven tools that utilize LLMs to analyze pull requests, automatically generate Python‑based unit and integration tests for financial logic, and dynamically inject them into the CI/CD pipeline
• Develop "self‑healing" test suites that adapt to UI or API schema changes automatically, reducing maintenance overhead for the engineering team
• Validate the integrity of complex Fin Tech flows—including multi‑party payments, ledger reconciliation, and automated invoicing—ensuring mathematical accuracy across distributed systems
• Build custom CI/CD plugins and orchestration workflows (e.g., in Jenkins or Argo) that intelligently select and execute tests based on the scope of code changes
• Write high‑performance Python code to simulate massive transaction loads, stress‑testing our financial platforms to ensure stability during peak global events
• Collaborate with backend engineers to design testable architectures and promote a culture where quality is baked into the code from the first commit

• Expert‑level coding proficiency in Python
• You are a developer who focuses on quality and can write production‑grade Python code, not just simple scripts
• Proven experience integrating AI/LLMs (OpenAI, Lang Chain, etc.) into developer workflows or testing tools (e.g., using AI for test generation or log analysis)
• Deep understanding of CI/CD internals (Jenkins, Git Hub Actions, Argo workflows) with the ability to write custom pipelines and dynamic build scripts
• Expertise in testing backend microservices (REST, gRPC) and distributed systems, preferably within a Fin Tech context (Payments, Billing, Ledgering)
• Experience with containerization (Docker, Kubernetes) to spin up ephemerally test environments on demand
• A "shift‑left" mindset with a track record of building tools that empower developers to ship faster and more confidently
• Degree in Computer Science, or equivalent experience with 5+ years of hands‑on software engineering experience