Senior Full-Stack Engineer

Prior experience in companies with fewer than 100 employees Proficiency in TypeScript, Python, Go, or Java, with preference for TypeScript Experience as a product engineer, platform engineer, or ML-focused engineer Deep understanding of backend architecture, systems design, testing, and API development Strong problem-solving ability

Develop complex RL environments and sandbox systems Rapidly onboard new codebases and understand architectures Design evaluation systems including challenges, task frameworks, and scoring mechanisms Contribute across backend, testing, mocks, task evaluation, and light frontend Navigate infrastructure components as needed Build internal tools and agent-driven systems