Fullstack Developer
ScalacPoland9 hours ago
Full-timeRemote FriendlyEngineering, Information Technology
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💻 Senior Full Stack TypeScript Engineer – Fintech
📍 remote/b2b/30-40€/h
Join a leading fintech company with 25+ years of innovation in the financial markets. Our platform connects participants in repo and securities financing, delivering real-time solutions that enable clients to trade efficiently, accurately, and competitively. We foster autonomous, agile, and technology-driven teams with a strong focus on product excellence, innovation, and collaboration.
We are seeking a Senior Full Stack TypeScript Engineer to develop high-performance web applications and backend services, shaping the next generation of fintech solutions.
Requirements / Skills
📍 remote/b2b/30-40€/h
Join a leading fintech company with 25+ years of innovation in the financial markets. Our platform connects participants in repo and securities financing, delivering real-time solutions that enable clients to trade efficiently, accurately, and competitively. We foster autonomous, agile, and technology-driven teams with a strong focus on product excellence, innovation, and collaboration.
We are seeking a Senior Full Stack TypeScript Engineer to develop high-performance web applications and backend services, shaping the next generation of fintech solutions.
Requirements / Skills
- Extensive experience with TypeScript & JavaScript (ES6+)
- Strong Node.js backend expertise
- Advanced React, HTML5, CSS skills
- Deep understanding of RESTful APIs (HTTP, JWT, OAuth)
- Experience with relational databases (PostgreSQL / MySQL)
- Proficiency with Git, Linux/Unix CLI, npm/pnpm
- Unit, integration, and E2E testing (Playwright, Cypress, etc.)
- Web performance optimisation and scalable system design
- Practical experience using AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude, Gemini)
- Strong critical thinking to validate AI-generated code for security, maintainability, and performance
- Code review, documentation, and mentoring skills
- Ability to take ownership of complex features and drive delivery
- English – professional working proficiency
- Polish – minimum B2 level
- D3.js (data visualisation)
- Redux / Zustand / Context API
- Tailwind / Styled Components
- Docker / Terraform / AWS Lambda
- Load testing tools
Key Skills
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