Haystack People

backend developer for a high-traffic media platform

In short

Backend developer role at an independent Amsterdam media company that reaches millions of users monthly through sports and lifestyle brands. The job involves building and optimizing TypeScript/Node.js services in a monorepo, handling data at scale, and collaborating with frontend and DevOps teams. Requires at least 4 years of TypeScript/Node.js experience, MySQL and Redis knowledge, OpenAPI familiarity, Auth0/Supertokens experience, and conversational Dutch alongside English.

About
An independent media company in Amsterdam brings publishing, technology, and events together. It reaches millions of people each month through sports and lifestyle brands and builds its platform in-house.
Responsibilities
•Develop TypeScript services within the monorepo
•Optimize performance and ensure data flows through the system smoothly and reliably
•Make sure user data, content, and comments are processed accurately, quickly, and at scale
•Improve efficient data transfer and validation without increasing costs or complexity
•Work with frontend and DevOps to continuously improve the architecture
•Guide colleagues when needed
Requirements
•At least 4 years of work experience with TypeScript and Node.js
•Knowledge of MySQL and Redis
•Familiarity with OpenAPI specifications and client generation
•Experience with Auth0 or Supertokens
•Able to speak English for daily collaboration and hold a normal conversation or presentation in Dutch
Nice to have
•Understanding of Kubernetes, Docker, or GCE
Conditions
•Laptop, training budget, and opportunities for professional development
•Modern tool stack, considerable autonomy, and direct impact on millions of users
•Social office environment with shared lunches, drinks, and team activities

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