Senior Node.js & React Full-Stack Developer

Quick Facts

• Role: Senior Node.js & React Full-Stack Developer

• Work model: Fully remote (Warsaw-based opportunity)

• Language: Fluent English

Description

Build scalable full-stack solutions using Node.js and React in an agile, product-focused environment. You will design and document technical architectures, improve identity and account management capabilities, and ensure solution consistency, quality, and performance. You’ll also evaluate technologies for scalability and efficiency while mentoring engineers and driving technical best practices.

Responsibilities

• Develop and support business-critical solutions in an agile, product-oriented team

• Solve organization-wide identity and account management challenges

• Design and document technical architectures and software solutions across multiple teams

• Ensure consistency, quality, and performance of developed solutions

• Evaluate and recommend technologies to improve system efficiency and scalability

• Collaborate with key stakeholders and partner organizations

• Mentor junior engineers and promote technical growth and best practices

• Continuously develop technical expertise in a fast-paced environment

Requirements

• 5+ years of software development/engineering experience

• Strong problem-solving skills and proactive, collaborative mindset

• Deep knowledge of JavaScript (runtimes, APIs, ecosystem)

• Extensive backend experience with Node.js

• Proficiency in TypeScript and a track record of clean, maintainable code

• Strong frontend development skills with React, build tools, and performance optimization

• AWS experience including DynamoDB, Lambda, Step Functions

• Product-oriented mindset with ability to understand business domains

• Excellent communication skills and experience working in an agile, global team

• Willingness to learn, develop, and innovate in a fast-paced environment

• Existing legal right to work in Europe

Benefits

The posting highlights an international, impact-driven environment working on solutions for sustainability, resilience, and community well-being.