Sr Software Development Engineer in Test, ML

San Mateo, CA · full time · Senior

$183,000 – $274,600

Listed on Bend Studio’s own careers site. You apply with them directly — we never stand between you and the employer.

What this role is

This role leads quality and testing efforts for machine learning systems at PlayStation, requiring an experienced test automation engineer to validate probabilistic ML models and services at global scale. It suits engineers who understand both traditional backend testing practices and the unique challenges of ML systems, including statistical validation and production readiness.

Our summary, not Bend Studio’s wording. The full posting is on their site.

Skills this role names

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What they ask for

Required

5+ years as SDET with backend systems testing experience
Bachelor's degree or equivalent
Proficiency in Python, Java, Scala, or Go for test automation
API testing experience with tools like Postman for distributed systems
CI/CD pipeline and test execution knowledge (Jenkins, GitHub Actions, ArgoCD, etc.)
Building and maintaining automated test frameworks (pytest, JUnit, TestNG, etc.)
Database experience for backend validation
Cloud and container technologies (AWS, GCP, Kubernetes, Docker)
Monitoring and observability tools (Prometheus, Grafana, Datadog, etc.)
Software development lifecycle and agile methodology knowledge
Problem-solving and communication skills

Nice to have

Experience testing machine learning systems (recommendation, ranking, probabilistic systems)
Creating synthetic or seeded test data for realistic scenarios
Evaluating model outputs using statistical and distribution analysis
Data pipelines, feature stores, and model-serving infrastructure knowledge (Seldon, KServe, Ray Serve)
Testing high-RPS, low-latency online services
Performance and load testing tools experience (Locust, k6, Gatling, JMeter)
Databricks or similar ML platform experience