Senior TypeScript Engineer (Library & Algorithm Focus)

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Requirements:

• 3+ years of professional experience building and maintaining TypeScript libraries/packages
• Strong proficiency in TypeScript, React, and Node.js
• Familiarity with GraphQL ecosystems, federation, code generation, or client libraries
• Experience with modern testing frameworks (Jest, Vitest, or similar) and CI/CD pipelines
• Solid grasp of npm package workflows, semantic versioning, and monorepo tooling
• Huge interest in graph algorithms and willingness to learn and apply graph-theoretic techniques in context of GraphQL Federation
• Open-source contributions or personal projects that showcase your library-building skills (GitHub links appreciated)
• Excellent communication skills in English for clear technical writing and cross-team collaboration
• Willingness to travel twice a year for offsites and major team meet-ups

Responsibilities:

• Architect and implement reusable TypeScript modules (npm packages) for:
• Advanced GraphQL federation utilities and clients
• Graph algorithms (e.g., traversal, pathfinding, caching strategies)
• Performance-critical data structures and helpers
• Define, execute, and maintain comprehensive unit, integration, and property-based tests
• Set up CI pipelines that enforce quality gates, code coverage, and linting
• Optimize algorithms for low latency and minimal bundle size
• Continuously refine API ergonomics and developer experience (DX)
• Partner with our product and customer teams to gather feedback and iterate swiftly
• Diagnose edge-case bugs in production and propose long-term fixes
• Engage with the open-source community: triage issues, review contributions, mentor fellow maintainers