Sii Poland
Fullstack Developer with React
Sii PolandPoland1 day ago
Full-timeInformation Technology
Join Sii as a Fullstack Developer and participate in the development of an engineering portal - a key web platform supporting the daily work of all technical teams in a large US-based technology organization.

The portal we support integrates with Kubernetes-based infrastructure and Continuous Deployment (CI/CD) systems, enabling tools for transparency, automation and operational efficiency.

The project is implemented in partnership with an engineering team that provides cutting-edge solutions in the areas of cloud storage, file synchronization and team collaboration. The platform is used by millions of users around the world, and the development of internal tools has a direct impact on the quality and reliability of the entire technology ecosystem.

Your tasks

  • Design and development of modern user interfaces using React and TypeScript
  • Backend integration - co-creating APIs and designing intuitive workflows for engineering teams
  • Working with frontend architecture, state management, performance optimization, component development, UI scalability
  • Proactive approach to UX/UI - simplifying complex technical processes

Requirements

  • At least 5 years of experience as a Frontend Developer
  • Very good knowledge of React and TypeScript
  • Good knowledge of Python or Golang
  • Experience working with component architecture and application state management
  • Willingness to learn and work with backend systems
  • Understanding of UX/UI principles and attention to usability of interfaces
  • Ability to design and integrate RESTful APIs
  • Self-motivation and initiative
  • Residence in Poland required and fluency in the Polish language

Job no. 250924-34DOY

Benefits For You

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Key Skills

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