SDET - AI/LLM & Backend Testing Engineer (Contractor)

Sony Playstation; San Mateo (CA); On-site; CAD 114,000 - 141,000; Part time

Job summary

Sony Interactive Entertainment is seeking an experienced SDET contractor to design and implement automated testing across Agentic AI systems, APIs, microservices and distributed backends. The role focuses on test automation, non-deterministic AI evaluation and quality engineering within a fast-paced, tech-driven environment.

The candidate will partner with software engineers, product managers and other QE teams to improve testability, observability and overall product quality while integrating

Qualifications

• Bachelor’s degree in CS/Engineering/IT or equivalent practical experience.
• 4+ years in Software Development Engineering in Test or Quality Engineering.
• Strong experience testing REST APIs, backend services, microservices or distributed systems.
• Hands-on automated tests with Python, Java, JavaScript or TypeScript.
• Experience with CI/CD pipelines integration and test automation.
• Experience testing Generative AI, LLM-powered or Agentic AI systems.

Responsibilities

• Develop QE strategies and test plans for AI systems, APIs and services.
• Design and maintain scalable automated test frameworks for API, functional, integration, contract and E2E testing.
• Evaluate non-deterministic AI behavior with meaningful criteria.
• Identify risks and apply shift-left testing across lifecycle.
• Integrate automated testing into CI/CD pipelines and set quality gates.
• Collaborate with engineers, PMs and QE teams to improve testability and observability.
• Analyze defects and root causes to improve QE processes.
• Provide visibility into test coverage, reliability and release readiness.

Skills

REST API testing

Automated testing

Python/Java/JS/TS

CI/CD integration

Agile development

Root-cause analysis

Education

Bachelor's degree or equivalent

Tools

Git

CI/CD tools

OpenAPI/Swagger

Pact

Docker

Kubernetes

LangSmith/DeepEval/Promptfoo

Job description

Sony Interactive Entertainment is seeking an experienced SDET contractor to design and implement automated testing across Agentic AI systems, APIs, microservices and distributed backends. The role focuses on test automation, non-deterministic AI evaluation and quality engineering within a fast-paced, tech-driven environment.

The candidate will partner with software engineers, product managers and other QE teams to improve testability, observability and overall product quality while integrating