Senior Frontend Developer (React/TypeScript)

We are part of hiberus - one of the leading technology companies in Spain with a presence in over 14 countries, employing over 3,000 specialists and serving Clients all over the world.

We are professionals who have many years of experience in areas such as: IT, BI, project and enterprise management. We are characterized by high quality and efficiency of implemented projects by properly matching the candidate to the profile of the sought position and the organizational culture prevailing in the company. We currently cooperate with prestigious institutions in the areas of banking, finance, insurance, pharmacy, health care and tourism, both in Poland and abroad.

Partnership, reliability and transparency - these are the values that guide us in all our activities.

• 5+ years of experience in frontend development
• Strong knowledge of JavaScript and TypeScript
• Hands-on experience with React (web)
• Good understanding of HTML5, CSS, and modern frontend standards
• Experience working with REST APIs (Swagger/OpenAPI)
• Familiarity with state management tools (Redux / NgRx / Pinia)
• Experience with automated testing (e.g., Jest, Cypress)
• Good knowledge of Git and collaborative workflows
• Experience with code reviews
• Good command of English

Nice to have:

• Experience with React Native
• Experience with IoT, embedded systems, or smart devices
• Knowledge of D3.js (data visualization)
• Experience with Nx / monorepo
• Experience with design systems / Storybook
• Basic knowledge of Node.js / Nest.js
• Experience in mentoring or leading developers
• Interest in AI solutions (e.g., chatbots)

• Build and develop modern web applications
• Collaborate closely with backend teams to integrate REST APIs
• Participate in designing architecture and proposing improvements
• Ensure code quality (automated tests, code reviews)
• Mentor and support less experienced developers
• Work in an international, cross-functional environment