UI Software Engineer; Poland

At Polystar | Elisa Industriq we are seeking a UI Engineer to join our Wroclaw office who is ready to take ownership - not just of their tasks but also to contribute to the development team as a whole.

As our UI Engineer, you'll play a pivotal role in developing and enhancing user interfaces for our data processing and data-rich applications in the telecom industry. Your key responsibilities will include:

• Develop and maintain UI
  :
  Build and enhance user interfaces using React and functional programming paradigms
• Data flow implementation
  :
  Work with fluture-js and sanctuary-js to manage complex data flows and asynchronous operations
• API Integration
  :
  Implement Graph
  
  QL and REST API integrations, including Web Socket Subscriptions and Server Sent Events
• Component development
  :
  Create and maintain reusable components using our custom library with Tailwind CSS
• Collaborate with designers
  :
  Transform Figma designs into functional, performant user interfaces
• Code quality
  :
  Write tests using Jest and React Testing Library, participate in code reviews
• Build configuration
  :
  Configure and optimize Webpack builds, including module federation setup

Must-have skills:

• React
  :
  Expert‑level knowledge of React and its ecosystem
• Functional programming
  :
  Strong understanding of functional programming concepts with experience in libraries like fluture-js and sanctuary-js (or similar libraries)
• Tailwind CSS
  :
  Solid experience working with Tailwind CSS
• API development
  :
  Familiarity with REST and Graph
  
  QL concepts
• Experience
  : 3+ years in UI development
• Language skills
  :
  English proficiency (B2)

• Technologies and libraries
  :
  Experience with Storybook, Esbuild, Vite, Highcharts, Redux, Webpack configuration
• Database Knowledge
  :
  Experience with document‑based database systems and database systems like Click House or PostgreSQL
• Containerization
  :
  Experience with Docker and Kubernetes

• Engaging technical challenges: Work with software that handles massive amounts of data for 100+ live telecom customers.
• Collaborative team environment: Supportive team culture where everyone helps each other.
• Opportunities to learn: Plenty of chances to learn from your teammates.
• Mastering our technical scope: Our team excels at helping new members get up to speed.

• Hybrid & flexible work: Balance office and remote work as it suits you.
• Growth‑oriented culture: As part of the Elisa group, we support your learning and career development.
• Be part of telecom innovators: Help shape the future of the industry.
• salary starting at 12 000 PLN gross (depending on skills and experience)
• a range of employee benefits

Apply between 7 January 2026 and 18 January 2026 23:59 (Europe/Warsaw)