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Senior React Developer

Bonapolia Warsaw, Masovian Voivodeship, Poland

IT Services and IT Consulting · 2-10 employees

3 h ago
Remote react Senior (5-10 yrs) Full-time Poland
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About the role

You will build high-performing user interfaces for sports data products and design implementation plans using AI agents. Additionally, you will review, validate, and improve production code to ensure reliability and maintainability.

What they look for

React TypeScript Next.js Vue.js C# .NET AWS AI coding agents Web development User interface design Spec-driven development Code review Testing Software architecture Communication

Requirements

The role requires senior-level commercial experience with React and TypeScript, along with proficiency in using AI coding agents for development tasks. Candidates must also possess strong problem-solving skills and excellent English communication abilities.

Full description

🧠 Tech Level: Senior

🗣️ Language Proficiency: Upper-Intermediate

🧾 Employment type: Full time

🌍 Candidate Location: Poland

🕐 Working Time Zone: CET

🚀 Start: ASAP

👥 Customer Description:

A sports data platform.

🧩 Project Description:

Web products for sports data, including scores, statistics, and related use cases.

⚙️ Project Phase:

ongoing

🤝 Soft Skills:

  • Ability to analyse business or customer problems, design practical solutions, and formulate specifications for AI agents.
  • Strong ownership and accountability for delivered work.
  • Excellent written and spoken English communication skills.

💡 Hard Skills / Must Have:

  • Senior-level commercial experience with React and TypeScript.
  • Experience building polished, high-performing web user interfaces.
  • Experience using AI coding agents for design, development, testing, code review, and improvement of production code.
  • Spec-driven development experience.
  • Ability to work directly in the code when most effective.

✨ Hard Skills / Nice to Have (Optional):

  • Next.js.
  • Vue.js.
  • Understanding of C#/.NET backend services and AWS cloud infrastructure.
  • Experience using AI agents within a team workflow.

📌 Responsibilities and Tasks:

  • Build polished, high-performing user interfaces for sports data products.
  • Break down business problems, design solutions, and create implementation plans using AI agents.
  • Use AI agents to develop, test, refine, and submit merge requests.
  • Review, validate, and improve production code for reliability, security, and maintainability.

🧪 Technology Stack:TypeScript, React, Next.js; backend side: C#/.NET, AWS

📞 Interview stages:

  • English check (15 minutes)
  • internal technical interview (1-1,5 hour)
  • client interview (1 hour)
  • client interview – cultural fit (45 minutes)

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