We are seeking a talented and passionate React Developer to join our growing engineering team. In this role, you will be responsible for designing, developing, and maintaining robust and scalable backend & frontend systems that power our new platform for Business Architecture Design Management. You will work closely with other developers, product manager, and business users to build innovative solutions that solve complex organizational problems.
 

Job details:

• Role:React Developer
• Full-time
• Hybrid – 5/6 days a month in Krakow or Warsaw
• Start date: 09/03/2026
• End date: 31/12/2026

Scope:

• Architect, design, and build a robust and scalable web platform from the ground up – covering both frontend and ackend development
• Lead development of new user-facing features using modern frameworks (React, Angular)
• Develop and maintain backend services (APIs, microservices, data architecture, business logic) using Node.js, Java, Python.
• Build resilient, maintainable, and performant architecture: from database modelling to API design
• Collaborate effectively with product manager, business users, engineers and other stakeholders in an agile environment – SCRUM
• Deliver high-quality code rapidly by driving a continuous integration and deployment flow (CI/CD, automated testing, code reviews)
• Desing and build scalable and optimally configured setup in cloud, preferably GCP: infrastructure as a code, containerization (Kubernetes, Docker), serverless, could services
• Mentor and support engineers to build team autonomy, in still architectural standards, and guide technical excellence
• Work with relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Cassandra).

Skills:

• 8+ years of software engineering experience, with 3+ years in full stack roles designing, building, and launching web platforms
• Strong command of frontend frameworks JS (React, Angular, or Vue), component-driven architecture, state management, responsive UI, routing
• Commercial development experience using React.js
• Commercial development experience with React Redux, Redux Sagas
• Commercial development experience with TypeScript
  Experience of working in a fast-paced Agile development environment
• Solid experience in backend development: Java, RESTful APIs, microservices, domain-driven design, scalable service structures, fault mitigation
• Proven track record of building platforms, tools from scratch, delivering end-to-end functionality under tight timelines
• Comfortable and efficient while working independently – owning technical decisions, managing tasks, and delivering results with minimum oversight]
• Excellent communication – able to explain complex technical concepts to any audience
• Experience in working with relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Cassandra) databases.
• Experience with Git and version control.
• Extensive knowledge of architectural best practices & fast-paced delivery mindset: value-driven, pragmatic, result oriented

Nice to have:

• Experience with cloud platforms (e.g., AliCloud, AWS, Azure or Google Cloud)
• Experience with data science tools (e.g., Jupyter Notebooks, Pandas, NumPy)
• Experience in applying DevOps features (infrastructure automation, monitoring, auto-scaling, site reliability, engineering principles)
• Knowledge of Generative AI relevant framework and techniques

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