Senior Full Stack Developer (React / Node.js / Graph)

Technologies we use

About the project

Your responsibilities

• Advanced Frontend Development: Lead the development of complex, responsive web applications using React and TypeScript, focusing on high-performance data visualization.
• Graph Data Visualization: Design and implement interactive interfaces to visualize intricate financial and ownership structures using D3.js, GoJS, or Cytoscape.
• Scalable Backend Services: Build and maintain robust, typed server-side logic and microservices using Node.js.
• Data Integration & APIs: Seamlessly integrate frontend components with GraphQL and graph databases to ensure real-time data flow and efficiency.
• Reporting & Analytics: Develop sophisticated data grids and reporting tools using AG Grid for high-end business insights.
• System Optimization: Conduct performance tuning across the full stack to handle large-scale, deeply nested graph datasets smoothly.
• Quality & Standards: Maintain a library of reusable UI components in Storybook and ensure high code quality through code reviews and best practices.
• Stakeholder Collaboration: Work closely with international client representatives (US & NL) to align technical implementation with business requirements.

Our requirements

• 8+ years of professional experience in software engineering, with a proven track record of delivering complex web applications.
• Expert Proficiency in React: Deep understanding of React hooks, context API, state management patterns, and performance optimization.
• Mastery of TypeScript: Strong experience in building large-scale, type-safe applications across the entire stack.
• Solid Node.js Experience: Ability to design and maintain scalable backend services, APIs, and handle asynchronous logic efficiently.
• Advanced State Management: Hands-on experience with Redux (or similar libraries) in complex, data-heavy environments.
• Modern Frontend Tooling: Practical experience with Storybook for building and testing reusable UI components.
• API Design: Proficiency in working with GraphQL and RESTful services to manage complex data fetching.
• English Language: Strong communication skills (B2/C1 level) for daily collaboration with international teams from the US and the Netherlands.

Optional

• Data Visualization Expertise: Experience with libraries like D3.js, GoJS, or Cytoscape for rendering graph-based data.
• Graph Database Knowledge: Familiarity with Neo4j, AWS Neptune, or writing queries in Cypher/Gremlin.
• Enterprise Reporting: Experience with AG Grid for handling and displaying large datasets.
• DevOps Awareness: Basic knowledge of Docker and CI/CD pipelines to support a smooth deployment process.

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Team size

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Team members

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Development opportunities we offer

What we offer

• Long-term Stability: Opportunity to be a founding member of a newly established delivery team in Poland with a long-term project roadmap.
• 100% Remote Work: Full flexibility to work from home, allowing for a comfortable and productive work-life balance.
• Predictable Working Hours: Standard business hours (9:00–17:00 Warsaw Time), ensuring no disruptive shifts or late-night calls.
• Cutting-Edge Tech Stack: Hands-on experience with advanced technologies, including Graph Databases, GraphQL, and sophisticated data visualization tools.
• International Environment: Daily collaboration with high-level experts and stakeholders from the United States and the Netherlands.
• Professional Growth: A senior-heavy environment that fosters knowledge sharing, complex problem-solving, and architectural influence.

Benefits