Senior React, Node.js Fullstack

Symphony Solutions is a Cloud- and AI-driven technology company headquartered in the Netherlands, delivering both world-class services and innovative products. With a remote-first mindset, the company has a global presence spanning over 20 countries. It provides custom software solutions for Airline, Healthcare, iGaming, E-learning, e-Commerce, and Supply Chain sectors.

Mandatory:

• 5+ years of total software development experience.
• 3+ years of production experience with React, including complex state management (Redux / Redux Toolkit).
• 2+ years of Node.js experience, with hands-on use of Express.js in a production BFF or API layer.
• Strong proficiency in TypeScript across both frontend and backend.
• Experience with unit and integration testing (Vitest, Jest, or similar).
• Experience working in a microservices architecture, including understanding of BFF layer integration.
• Familiarity with Docker and basic Kubernetes workflows.
• Proven experience using AI-assisted development tools (e.g., Claude, Cursor, GitHub Copilot, ChatGPT) in daily work (code generation, refactoring, debugging, testing, documentation).
• Strong English communication skills (B2+).
• Self-organized, proactive, and comfortable working in a distributed team.

Desirable:

• Experience with JIRA, and Confluence.
• Experience with ElasticSearch.
• Experience in gambling or online gaming.
• Experience with TDD development processes.
• Strong interest in applying AI-powered tools (e.g. Claude, ChatGPT, Copilot, Cursor or similar) to speed up day-to-day development tasks.
• Proven ability or strong motivation to use AI to reduce development time, improve code quality, and automate repetitive engineering work.

• New features development within the existing product.
• Resolving technical problems as they arise.
• Bug fixing of developed features.
• Actively leverage AI-assisted tools to improve efficiency across coding, testing, debugging, and other SDLC activities.
• Writing Unit tests and integration tests.
• Communicating with team members and the Product team.
• Scrum ceremonies participation.
• Mentoring middle and junior colleagues might be required.