Member of Technical Staff

The role

You will own the design, development, and production of Frontier Data Products. You will build sandboxed, reproducible environments, terminals, browsers, and tool-augmented workspaces that AI agents use during training and evaluation.

What you will do

• Design, build, and maintain sandboxed RL environments for agentic AI training
• Develop reproducible, containerized execution environments
• Integrate with and extend open-source agentic tooling and custom CLI/API harnesses
• Build instrumentation and observability layers
• Collaborate with data operations to design task curricula and evaluation protocols
• Own environment deployment and reliability including CI/CD pipelines and monitoring
• Rapidly prototype new environment types

Required qualifications

• 2+ years of professional software engineering experience
• Strong fundamentals in Python
• At least one systems-level language (Go, Rust, C++)
• Demonstrated experience with containerization and sandboxing (Docker, Podman, Firecracker, or similar) in production or near-production contexts
• Familiarity with RL concepts: MDPs, reward shaping, episode structure, observation/action spaces
• Experience building or maintaining developer tooling, CLI tools, or infrastructure automation
• Comfort working with browser automation frameworks or terminal interaction tooling
• Strong debugging instincts to trace failures across process boundaries, container layers, and network calls
• Ability to read and implement from academic papers and open-source benchmark repositories

Nice to have

• Direct experience building or contributing to RL environments (Gymnasium/Gym, PettingZoo, or custom environment implementations)
• Experience with agentic AI evaluation frameworks (SWE-bench, WebArena, OSWorld, TerminalBench, or similar)
• Familiarity with GCP or AWS infrastructure (Compute Engine, ECS/EKS, Cloud Build)
• Prior work at an AI data company, ML platform company, or AI research lab
• Contributions to open-source projects in the RL, agents, or dev-tools space

About the company

Labelbox builds critical infrastructure that powers breakthrough AI models at leading research labs and enterprises. The company offers integrated solutions including an Enterprise Platform & Tools, Frontier Data Labeling Service, and an Expert Marketplace.