Senior Full Stack Engineer React/Node

We are searching for a Senior Fullstack Engineer ready to join our talented engineering team.

This is a unique opportunity to work alongside top-tier professionals (CEO/CTO level) in a dynamic environment, driving the development and migration of a data-intensive SaaS platform.

We are looking for a technical leader to spearhead the migration of their platform to a modern React/NodeJS stack. This role demands deep expertise in large-scale data handling, sharp UI/UX instincts, and the ability to integrate cutting-edge AI workflows.

Key Responsibilities

• Architecture & Development: Architect scalable SaaS applications using ReactJS (hooks, state management, performance) and NodeJS (REST/GraphQL, async processing).
• Strategic Migration: Lead the transition from Angular/legacy systems to a microservices architecture, refactoring backends and integrating modern React components.
• Data Mastery: Manage large datasets using SQL (Drizzle ORM) and implement ETL pipelines for high-volume operations.
• UI/UX Leadership: Design intuitive, accessible visualizations for complex data across all devices.
• AI Integration: Embed AI workflows into the platform while maintaining strict security and scalability standards.
• DevOps Ownership: Manage deployments via Docker and CI/CD pipelines, ensuring cloud performance monitoring.

Qualifications

• Experience: 8+ years in fullstack development with at least 3+ years dedicated to React/NodeJS in SaaS environments.
• Track Record: Proven portfolio demonstrating successful Angular-to-React migrations and data-heavy apps running 24/7.
• AI Proficiency: Strong ability to leverage AI tools (Claude, Copilot, Perplexity, ChatGPT) for accelerated problem-solving.
• Tech Stack: Mastery of Docker, CI/CD best practices, and automated testing frameworks.
• Mindset: Entrepreneurial spirit with a "get things done" attitude and previous technical leadership experience.
• Language: Fluency in English is mandatory.
• Work permit in Luxembourg is mandatory.