TypeScript, Node.js & Integrations | Up to €90,000 a year | 32–40 hours

Would you like to build scalable integrations and middleware used by major international brands? Join a fast-growing technology company where you will solve complex backend challenges involving high-volume e-commerce environments, real-time data flows and business-critical systems.

About the company

This international software company specialises in complex e-commerce solutions and system integrations for high-volume B2B clients across retail, manufacturing and distribution. Its client portfolio includes globally recognised brands such as Universal Music Group and Estée Lauder.

The engineering teams build scalable Shopify Plus solutions and integrate them with systems such as ERP, WMS, POS and accounting platforms. Projects range from real-time inventory synchronisation and financial reconciliation to middleware for stores containing hundreds of thousands of products.

The company has engineering teams in the Netherlands, Canada and Vietnam. Its Dutch headquarters are located in Rijswijk. Despite its international scale, the culture remains pragmatic, entrepreneurial and highly technical.

Developers are trusted to take ownership, challenge existing approaches and introduce new technologies or working methods. You will have the opportunity to lead technical initiatives and contribute to the continued development of the engineering organisation.

Recent projects include:

• Connecting Shopify Plus with ERP platforms such as NetSuite and SAP
• Building real-time product, pricing and inventory synchronisation
• Developing integrations for multi-region and high-SKU storefronts
• Creating financial reconciliation tooling for accounting platforms
• Building internal developer tools and reusable NPM packages
• Supporting and mentoring engineering teams across different regions

Your role

As a Full Stack Developer with a strong backend focus, you will design and develop reliable integrations, microservices and custom applications. You will work on the technical layer connecting e-commerce platforms to business-critical systems.

Most of your work will focus on backend development with TypeScript and Node.js. Depending on your experience and interests, you may also contribute to frontend applications built with React and Remix.

Your responsibilities will include:

• Designing, building and maintaining scalable backend integrations
• Developing microservices, middleware and custom applications
• Integrating Shopify with ERP, WMS, POS and accounting platforms
• Working with TypeScript, Node.js, PostgreSQL, GraphQL and REST APIs
• Improving the reliability and performance of real-time data flows
• Contributing to the company’s monorepo, shared libraries and internal tooling
• Participating in technical scoping, sprint planning and code reviews
• Collaborating with international engineering teams
• Optionally contributing to frontend solutions using React, Remix and Shopify Polaris
• Taking ownership of technical decisions and proposing improvements

What you bring

• At least three years of professional experience as a backend or full stack developer
• Strong development experience with TypeScript and Node.js
• Solid knowledge of PostgreSQL, REST APIs and GraphQL
• Experience building integrations, APIs or distributed backend systems
• An understanding of scalable software architecture and reliable data processing
• A proactive mindset and the confidence to take ownership
• Strong communication skills and a collaborative working style
• Professional proficiency in English
• Residence in the Netherlands and valid authorisation to work here

What you can expect

• A gross annual salary of up to €90,000, based on 40 hours per week
• The option to work 32 or 40 hours per week
• A remote-friendly and internationally oriented working environment
• Performance-based bonuses and incentives
• Opportunities to travel to Canada and collaborate with international colleagues
• Strong technical mentorship and clear opportunities for professional growth
• Plenty of autonomy and room to introduce new technologies and ideas
• Challenging projects for well-known international brands

Interested?

Would you like to learn more about the company, its projects or the engineering team? Send your CV to g.vanschagen@haystackpeople.nl