Frontend TypeScript Engineer (AI Training)

About The Role What if your deep expertise in TypeScript could directly influence how AI writes code for millions of developers around the world? We're looking for experienced Frontend TypeScript Engineers in Warsaw and across Poland to review, evaluate, and guide AI-generated code — helping cutting-edge AI models understand what truly type-safe, scalable, and modern web development looks like. This is a fully remote, flexible contract role. You'll work alongside leading AI research teams, applying your real-world frontend knowledge to tasks that have a lasting impact on how AI understands and produces TypeScript code. Organization: AlignerrType: Hourly ContractLocation: RemoteCommitment: 10–40 hours/week What You'll Do Review AI-generated TypeScript code for strict type safety, accurate interface design, and correct generic usageDevelop complex, type-safe frontend components that demonstrate best practices in modern web architectureProvide detailed technical commentary on architectural decisions and type-driven development strategiesIdentify and flag ambiguities or errors in AI responses related to complex type definitions and asynchronous frontend patternsWork independently and asynchronously — fully on your own schedule Who You Are Deep expertise in TypeScript — including static typing, generics, interfaces, and utility types3–5 years of hands-on experience with modern frontend or full-stack frameworks such as React, Angular, Next.js, Nuxt.js, or Node.jsStrong written and verbal communicator who can clearly articulate technical reasoningNaturally detail-oriented with a high standard for code quality and correctnessBachelor's degree or higher in Computer Science or a related field preferred Nice to Have Experience with data annotation, model evaluation, or AI training workflowsFamiliarity with full-stack TypeScript patterns and performance optimizationBackground in code review, technical writing, or engineering mentorship Why Join Us Work on cutting-edge AI projects alongside leading research labsFully remote and flexible — work when and where it suits youFreelance autonomy with the structure of meaningful, task-based workMake a direct, tangible impact on how AI understands and writes modern TypeScriptPotential for ongoing work and contract extension as new projects launch