Zaven is a software company from Wrocław, Poland. We build high-quality custom software for essential industries. Our focus is on practical results and trusting our people, not on strict rules or long processes. If you want to work with smart teams to build important software, and you want to avoid big company bureaucracy, this is the place for you.

We’re looking for a React Developer to join our team on a core project for one of our international clients.

This is a frontend role on a platform designed for processing and analyzing large volumes of time-series data, specifically in the utility/financial domain. The core objective is to deliver actionable data insights that enable cost optimization and data-driven decision-making for end-users.

Core technologies:

• React 18+ with TypeScript
• Next.js (App Router experience preferred)
• Vite for build tooling and development experience

UI and visualization:

• Radix UI or similar opinionated component libraries (we prefer battle-tested solutions over custom implementations)
• Tailwind CSS for styling
• Recharts for data visualization (time-series charts, line charts, aggregated metrics)
• Experience building data-heavy analytical dashboards (required, not just a plus)

Frontend architecture:

• Modern React patterns (hooks, context, composition)
• State management solutions for handling high-frequency data updates and complex data flows
• Efficient data fetching strategies and caching for real-time dashboard updates
• Form handling and validation
• Error boundaries and user-friendly error handling

Internationalization:

• Experience with i18n libraries and localization workflows
• Multi-language support implementation

Additional skills:

• RESTful API consumption
• Git and GitFlow branching model
• Desktop-first responsive design (mobile not required initially)
• Performance optimization for data-heavy dashboards

What We Offer

🧙‍♂️ Buddy support. You won’t be left on your own at the start

🍻 Regular team events and integration

👕 Welcome pack with Zaven goodies

💻Equipment (BYOD also an option)

❤️ Private healthcare (LuxMed) and Multisport card

Recruitment Process

Intro call with our recruiter (30 min)

Technical interview with one of our team members (1 hour)

👏 You’ll always receive honest and timely feedback — no endless waiting!