Yalantis is a compliance-first, full-cycle technology partner specializing in software, embedded systems, hardware, AI, and IoT. Since 2008, our 400+ specialists across the EU and US have built connected solutions for healthcare, manufacturing, automotive, and other industries.
11 вересня 2026

Senior Backend-Focused Full Stack Developer (Node.js + React) (вакансія неактивна)

Дніпро, Варшава (Польща), віддалено

We are looking for a Senior Full-Stack Developer to join an international product team. This role is primarily focused on backend development with Node.js (approximately 80% of the workload), while also contributing to a cross-platform mobile application built with React (around 20%). You will work closely with the client, participate in product discussions, and help deliver scalable and user-friendly solutions.

Responsibilities

  • Develop and maintain backend services using Node.js (approximately 80% of the role).
  • Design, build, and maintain scalable REST APIs and backend integrations.
  • Contribute to the development and maintenance of a cross-platform mobile application using React Native when needed (approximately 20% of the role).
  • Integrate third-party APIs and services.
  • Collaborate closely with the client and internal team on a daily basis.
  • Participate in product discussions and help shape technical solutions.
  • Take ownership of features from development to deployment.
  • Write clean, maintainable, and testable code.
  • Actively use AI tools to improve development efficiency and code quality.
  • Adapt to changing requirements in a dynamic environment.

Requirements

  • 6+ years of commercial software development experience.
  • Strong commercial experience with Node.js.
  • Strong commercial experience with React.
  • Willingness to work with React Native when needed; previous commercial React Native experience is a plus, but not required.
  • Strong knowledge of JavaScript (ES6+) and TypeScript.
  • Experience designing and developing RESTful APIs.
  • Strong understanding of backend architecture and best practices.
  • Experience integrating third-party APIs and services.
  • Hands-on experience with Git and version control workflows.
  • Strong communication skills and ability to work directly with clients.
  • Experience using AI tools in day-to-day development.
  • Proactive, self-driven, and comfortable taking ownership in a fast-paced environment.
  • English level: Upper-Intermediate or higher.

Our Benefits:

  • Professional growth: Individual development plan, mentorship, reimbursement for professional certifications and English lessons, access to professional courses in Corporate Learning Management System.
  • Community: Tech community and knowledge-sharing events, English speaking club, corporate library and book club, volunteering and charity initiatives.
  • Wellbeing: Medical insurance, regular medical check-ups, sport reimbursement, paid vacation and sick leave, mental health support and events.
  • Work environment: Fully-equipped offices, top-notch equipment, flexible work format, activities both in-office and online, Y-bucks and access to the Yalantis store.

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