Web Portal Developer

Client: A global leader with a sharp focus on lottery solutions. A confident step forward building on a long history of delivering safe and secure technology, demonstrating strong commitment to customers as a dedicated lottery service provider. Leveraging collective insight, experience, and expertise to create reliable and engaging solutions that help lottery clients achieve objectives, meet player needs, and deliver meaningful benefits to communities.

• Advanced expertise in React, Hooks, and TypeScript, with strong understanding of modern component-driven UI architectures
• Strong experience using Storybook for interactive visual component development and isolated testing
• Proficiency in Zustand for state management and TanStack Query (React Query) for asynchronous data handling
• Hands-on experience with Next.js for building performant, SEO-friendly web applications
• Skilled in Styled Components, MUI, and scalable design system patterns
• Experience with form handling using Formik and schema-based validation with Zod or Yup
• Proficiency with Axios for data integration and HTML React Parser for content rendering
• Experience writing unit and integration tests with Vitest
• Solid understanding of accessibility and UI performance best practices
• 3 years of experience in a similar position

Nice to have:

• MUI
• Formik
• Yup/Zod
• Axios

Languages:

• English

• Own the design, development, and testing of reusable, type-safe UI components, ensuring clean architecture, scalability, and maintainability.
• Build and maintain a structured component library in isolation to support rapid prototyping and strong collaboration between engineering and design.
• Deliver high-performance, SEO-optimized features using server-side rendering and static generation strategies.
• Manage client-side and server-state effectively, ensuring predictable state flows, efficient data fetching, caching, and synchronization.
• Implement reliable data integration with REST and GraphQL APIs, including structured error handling and performance optimization.
• Develop scalable, accessible UI aligned with the design system and accessibility best practices.
• Ensure application reliability through solid unit and integration testing.
• Contribute to engineering excellence through code reviews, knowledge sharing, and continuous improvement initiatives

• 16800-20200 PLN monthly
• B2B - Flexible working hours (100%)
• Fully remote work