group.one

Senior Backend Engineer

group.one

full-time

Posted on:

Location Type: Hybrid

Location: Dortmund • Germany

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Job Level

Senior

Tech Stack

JavaScriptMicroservicesNode.jsPostgresTypeScriptWordPress

About the role

  • Build and evolve AI-powered backend systems connecting conversational AI with website generation
  • Design and implement scalable APIs and microservices using Node.js (NestJS)
  • Develop robust data flows between WordPress, internal systems, and APIs
  • Collaborate closely with the team to deliver smooth user experiences through backend logic
  • Continuously improve performance, observability, and security using monitoring tools
  • Experiment, prototype, and learn new AI frameworks and backend technologies
  • Contribute to engineering culture by sharing insights and best practices

Requirements

  • Skilled Backend Developer (Node.js)
  • Strong interest in backend systems and API development
  • Solid foundational coding skills in TypeScript (Node.js, NestJS)
  • Familiar with relational databases (PostgreSQL)
  • Curious about RESTful API design, event-driven architecture, and asynchronous programming
  • User-centric approach to development
  • Thrive in agile, fast-paced, collaborative environments
  • Eager to learn and take ownership of professional growth
  • Hands-on exposure to cutting-edge technologies
Benefits
  • Flexible working hours
  • Hybrid office/remote setup (one day at the office per week)
  • Competitive benefits
  • Great opportunities for personal and professional growth
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Node.jsNestJSTypeScriptAPI developmentmicroservicesrelational databasesPostgreSQLRESTful API designevent-driven architectureasynchronous programming
Soft Skills
user-centric approachcollaborationagile methodologycuriosityownershipprofessional growth