Fullstack Engineer (Node.js, React)
Poland
Belgium
Lithuania
Full-time
Up to 7500 EUR gross per month
Join Sigli’s international team! Where we strive to make everyone feel welcome and valued. You’ll work on different projects across Europe and the UK while growing your career in a culture built on trust, care, and equality.
We are currently able to hire candidates located within the European Union for this position.
About the project:
Our client is a leading provider of ecommerce solutions for software and hardware resellers. Their ecommerce platform is the sales channel, offering a robust ecosystem of in-house and third-party services that support complex reseller transactions at scale.
To ensure long-term scalability, performance, and independence from third-party limitations, the client is undertaking a full rebuild of their ecommerce platform. This involves migrating from a legacy CMS/CRM system to a modern, fully custom solution built with React, Next.js and Node.js. The new platform will provide complete control over development, eliminate vendor lock-in, and support the evolving needs of their reseller network.
Team: around 10 people, 2-3 ppl from Sigli side.
What you will do:
- Design, build, and maintain backend services and GraphQL APIs in Node.js(Fastify)/TypeScript
- Contribute to cloud infrastructure and deployments in Azure using Terraform
- Implement frontend features in React/Next.js and integrate them with GraphQL APIs
- Improve performance, reliability, and maintainability across the stack
- Collaborate with product/engineering stakeholders and take ownership of deliverables
What you bring:
- 5+years of production experience in backend JavaScript/TypeScript development
- Strong expertise in Node.js and GraphQL
- Hands-on experience building web applications using React
- Experience with Microsoft Azure and Terraform for cloud infrastructure
- Solid understanding of Next.js (SSR, SSG, API routes)
- Proficiency with React Query for data fetching, caching, and server-state synchronization
- Experience with TailwindCSS for responsive, utility-first UI development
- High attention to detail and consistency in both code and UI
- Self-sufficient, proactive mindset: ability to work independently and manage time effectively
- Dutch language level B1 or higher
- Upper-Intermediate English proficiency
- Experience with Fastify, Zod are nice to have
