Rotterdam
30 Jun 2026
Backend Developer Typescript logo

Backend Developer Typescript

Coolblue

Backend Developer Typescript

Coolblue is hiring a Backend Developer TypeScript to join a multicultural team in Rotterdam. The role involves optimizing website features, designing microservices, and working with AWS. Requires 5+ years of TypeScript experience and a BSc/MSc in Computer Science.

HybridFull-timeSeniorTypeScriptNode.js

Salary

Not specified

Work Location

Rotterdam, South Holland, Netherlands, NL

Work Model

Hybrid: working from office and home with home-office setup provided

Experience Required

5 years

Employment Type

Full-time

Experience Level

Senior (5+ years TypeScript)

Core Qualifications

Technical (Must-have)
TypeScriptNode.jsAWS LambdaAmazon SNSAmazon SQSDynamoDBAmazon S3Amazon CloudFrontCI/CDSOLID principlesDesign PatternsMicroservicesAutomated TestingUnit TestingIntegration Testing
Soft Skills
CoachingCollaborationProblem-solvingCommunication

Preferred Qualifications

Technical (Nice-to-have)
PHPEnd-to-End Testing

Key Responsibilities

  • Optimizing crucial parts of Coolblue's website.
  • Designing and maintaining microservices in TypeScript.
  • Improving internal tools for colleagues.
  • Reviewing pull requests and performing code reviews.
  • Writing automated tests (Unit, Integration, End-to-End).
  • Working with AWS services: Lambda, SNS, SQS, DynamoDB, S3, CloudFront.
  • Applying SOLID principles and design patterns.
  • Building microservices that work together seamlessly.
Backend DeveloperTypeScriptNode.jsAWSMicroservicesSeniorHybridCoolblueRotterdam