Senior JavaScript FullStack Developer

🔍 Senior Fullstack Developer

Location: 100% remote
Contract type: B2B
Capacity: Full-time (1 FTE)

 

🚀 About the project

We are looking for a strong Senior Fullstack Developer to join an ongoing FinTech project.

The project focuses on building a platform that improves collaboration and relationship management between lenders and brokers. It is a product-oriented environment with continuous development, including new features, maintenance, and onboarding of new clients.

You will join a team working on a production system, where scalability, performance, and clean architecture are key.

 

💡 About the company

Kyotu Technology is a boutique software house based in Wrocław and Warsaw, working fully remotely or in hybrid mode across Poland. We focus on long-term, high-quality engineering and building complex, production-grade systems with real business impact.

 

🧠 Your responsibilities

  • design, develop, and maintain fullstack applications
  • build and extend backend services using Node.js
  • develop frontend features 
  • collaborate on architecture and technical decisions
  • ensure scalability, performance, and reliability of the system
  • write clean, maintainable, and high-quality code
  • contribute to feature development, maintenance, and product improvements

🧩 Must haves

  • minimum 7 years of commercial experience in software development
  • strong experience with Node.js
  • strong experience with React, Next.js or Angular
  • very good knowledge of JavaScript and TypeScript
  • experience working with MongoDB
  • experience with cloud environments (preferably AWS)
  • experience working on production systems
  • strong understanding of software architecture and best practices
  • high level of independence and ownership
  • very good communication skills

✨ Nice to have

  • experience with deployment platforms (e.g. Render)
  • experience in FinTech projects

📦 What we offer

  • B2B contract: 100 - 150 +vat/h
  • long-term cooperation
  • 100% remote work
  • collaboration with a US-based client
  • project with an active roadmap and real product impact
ID: 125 job_post.published_on: 16/04/2026
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