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September 1, 2026

Full Stack Developer/Lead (React & Kotlin)

Senior • Remote

180 - 200 PLN/yr

Warsaw, Poland

Are you passionate about building modern, scalable applications and working across the entire technology stack? We are looking for a talented engineer with strong expertise in React.js and Kotlin to help design, develop, and deliver innovative digital solutions. This is an exciting opportunity to work in a collaborative environment where your contributions will have a direct impact on product success.

What You'll Do

As a Full Stack Engineer, you will play a key role in developing high-quality applications from concept to deployment.

Frontend Development

  • Design, develop, and maintain responsive web applications using React.js, JavaScript, and TypeScript.
  • Build intuitive and engaging user experiences with a strong focus on usability and performance.
  • Ensure cross-browser compatibility and responsive design best practices.

Backend Development

  • Develop, enhance, and maintain backend services and APIs using Kotlin.
  • Create scalable, secure, and maintainable solutions that support business requirements.
  • Collaborate on system architecture and technical design decisions.

Collaboration & Delivery

  • Partner with Product Owners, UX/UI Designers, QA Engineers, and fellow Developers to deliver exceptional products.
  • Participate in agile ceremonies, code reviews, and technical discussions.
  • Contribute to continuous improvement initiatives and engineering excellence.

DevOps & Cloud-Native Engineering

  • Build and maintain CI/CD pipelines to streamline software delivery.
  • Deploy and manage applications using Docker and Kubernetes.
  • Monitor, troubleshoot, and resolve issues across development and production environments.

What We're Looking For

Required Qualifications

  • Proven experience in Full Stack or Web Application Development.
  • Strong hands-on expertise in React.js, JavaScript, and TypeScript.
  • Solid understanding of HTML5, CSS3, and modern frontend development practices.
  • Practical experience in backend development with Kotlin.
  • Experience working with CI/CD pipelines and DevOps principles.
  • Knowledge of Docker and Kubernetes.
  • Proficiency with Git and modern version control workflows.
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Excellent communication skills and ability to work effectively in cross-functional teams.
  • Previous experience in a Technical Lead, Team Lead, or Senior Engineer role, with a proven track record of mentoring developers, driving technical decisions, and leading project delivery.
  • Ability to coordinate development activities, provide technical guidance, conduct code reviews, and ensure adherence to engineering best practices.

Nice to Have

  • Experience leading distributed or global development teams.
  • Experience with cloud platforms such as AWS, Azure, or Google Cloud Platform.
  • Familiarity with microservices architecture and distributed systems.
  • Experience with automated testing frameworks and quality assurance practices.
  • Understanding of Agile/Scrum methodologies.

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