Key skills
DockerJavaScriptJestTypeScriptGitGitHubVersion ControlJiraAgileScrumKanbanCollaboration
About this role
Role Overview
- Develop, maintain, and optimize JavaScript libraries
- Build new integrations and improve existing ones with other systems and tools
- Create and maintain technical documentation
- Profile and optimize application performance
- Write unit and integration tests
Requirements
- Hands-on knowledge and 2+ / 5+ years of experience with JavaScript (we work with ES3–ES5+)
- Experience with TypeScript
- Ability to use browser profiling tools effectively
- Solid understanding of REST APIs
- Experience writing unit and E2E tests (Jest)
- Familiarity with container environments (Docker)
- Knowledge of agile development practices and tools (Scrum, Kanban, Jira, GitHub or other Git-based version control systems)
- Basic understanding of web application security (CSRF, XSS)
- Good command of English (B2) and Polish (B2)
Tech Stack
- Docker
- JavaScript
- Jest
- TypeScript
Benefits
- Private healthcare (Luxmed)
- Personal growth budget for learning, courses, and industry books
- A fully paid 1-month sabbatical after every 5 years with us
- Internal referral program with a nice bonus for bringing great people on board
- “Sharpen the saw” day — a full day dedicated to personal or group projects outside the sprint
- A strong, supportive team culture focused on collaboration and delivering together
- Plenty of opportunities to share knowledge and learn from experienced teammates