Senior Platform Engineer — Validation & Safety for Agent Code

Netflix; Warszawa; On-site; PLN 260,000 - 420,000; Full time

Job summary

Netflix is seeking a Senior Software Engineer to help build the next generation of the Validation & Safety Platform. You will design systems used by thousands of engineers and their agents, deciding what the platform should own and what to expose via APIs.

You will implement language-agnostic quality gates, agent-specific safety signals, and scalable test-generation approaches, while hardening sandboxing and access control for test infrastructure.

Qualifications

• Experience building and operating a platform used by multiple engineering teams.
• Ability to decide what capability the platform should own and expose via API.
• Hands-on with agentic coding tools and context management.
• Security-minded with sandboxing and data redaction knowledge.

Responsibilities

• Design and build validation and safety products used platform-wide.
• Build the polyglot static analysis layer for language-agnostic gates.
• Develop agent-specific safety signals and trajectory scoring.
• Define platform capabilities and make build-vs-buy decisions as the platform grows.
• Apply sound judgment on sandboxing and data access controls.

Skills

Platform mindset

Platform as a product

Security-minded

Communication skills

Testing culture advocate

Tools

LLM-based evaluation systems

CI/CD tooling

Static analysis

Job description

Netflix is seeking a Senior Software Engineer to help build the next generation of the Validation & Safety Platform. You will design systems used by thousands of engineers and their agents, deciding what the platform should own and what to expose via APIs.

You will implement language-agnostic quality gates, agent-specific safety signals, and scalable test-generation approaches, while hardening sandboxing and access control for test infrastructure.