Frontend Developer – Web Portal

Years of experience	3+
Language	English
Type of work	Full-time, Remote/Hybrid (Warsaw)

Requirements:

• Advanced expertise in React, Hooks, TypeScript, and modern component-driven UI architectures.
• Strong experience using Storybook for interactive, visual component development and testing in isolation.
• Proficiency in Zustand for state management and TanStack 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.
• Familiarity 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.
• Awareness of accessibility and UI performance best practices.
• Strong communication and collaboration skills, with a continuous learning mindset.

Nice to have:

• Experience integrating Agility CMS or similar headless CMS platforms

Job Responsibilities:

• Design, develop, and test reusable UI components using React, Hooks, and TypeScript, ensuring type safety and clean architecture.
• Develop and maintain visual components in isolation using Storybook, supporting faster prototyping, design validation, and cross-team collaboration.
• Build scalable features with Next.js, optimizing performance through server-side rendering and static site generation.
• Manage state effectively with Zustand and utilize TanStack Query (React Query) for efficient data fetching, caching, and synchronization.
• Style components with Styled Components and Material-UI (MUI) for a cohesive and accessible user experience.
• Ensure consistent development standards through ESLint, Prettier, and strong adherence to code quality best practices.
• Implement form workflows using Formik and validate with Yup or Zod to ensure robust data integrity.
• Integrate REST/GraphQL APIs using Axios with strong error handling and caching strategies.
• Write comprehensive unit and integration tests with Vitest, ensuring high reliability of components.
• Collaborate effectively with other developers to translate design mockups into functional and accessible components.
• Share your knowledge and expertise through code reviews and knowledge-sharing sessions, fostering a culture of continuous learning.
• Stay up-to-date with the latest advancements in React, TypeScript, and related technologies, contributing to their adoption within the team.

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.