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September 28, 2026

Senior TypeScript Engineer

Senior • Remote

Kraków, Poland

Quick Facts

  • Role: Senior TypeScript Engineer (sole engineer on the application-protection codebase)

Description

Own the technical development of an application-protection product end-to-end, turning high-level product goals into researched, working features. Investigate browser runtime behavior and protection approaches, evaluating compatibility, performance, and trade-offs. Use AI-assisted development tools while independently checking generated code and validating behavior.

Responsibilities

  • Drive development from product goals to implementation options and working features
  • Build application-protection capabilities across JavaScript/TypeScript frameworks and build environments
  • Research browser runtime behavior and environment-access controls using developer-tools inspection
  • Contribute to a React/Electron Dotfuscator UI when needed (initial months)
  • Run short research spikes (typically 1–3 days) and present findings, risks, and recommendations
  • Use Claude Code to accelerate implementation, while verifying results
  • Communicate progress and blockers via Slack and maintain a reliable working schedule
  • Support adjacent CI/CD, front-end, or C++ package work when required

Requirements

  • 3+ years of hands-on TypeScript engineering experience with proven independent ownership
  • Strong knowledge of JavaScript/TypeScript behavior, browser execution, and build tooling (e.g., Webpack/Vite)
  • Product-engineering mindset for incomplete requirements and unknowns
  • Clear technical communication and strong questioning skills
  • Ability to review unfamiliar code, find defects/vulnerabilities, and verify AI-assisted implementations
  • Availability for European overlap and scrum meetings; reliable asynchronous communication
  • Upper-intermediate English

Benefits

  • Mentorship, TechTalks, and personalized growth roadmaps
  • Competitive USD-based compensation plus education/fitness/team budgets
  • Flextime with remote/office options

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