TL;DR

Senior TypeScript Backend Engineer (AI): Building and optimizing high-load backend services for Groupon's global commerce engine with an accent on KTLO stability and platform modernization using an AI-first approach. Focus on migrating legacy Java/Ruby systems to a cutting-edge TypeScript/Node.js microservices architecture and championing AI-assisted development practices.

Location: Onsite in Madrid, Spain

Company

Groupon is a marketplace where customers discover new experiences and services everyday and local businesses thrive.

What you will do

  • Deliver complex technical initiatives independently within high-availability, mission-critical systems.
  • Lead technical reviews and contribute to architectural decisions, specifically driving TypeScript/Node.js migrations.
  • Champion AI-assisted development by using tools like Cursor and Claude hands-on.
  • Communicate technical trade-offs clearly to both technical and non-technical stakeholders.
  • Own operational excellence by maintaining and improving SLOs, observability, and comprehensive documentation.

Requirements

  • 5+ years of software engineering experience with deep proficiency in production-grade TypeScript and Node.js.
  • Distributed systems expertise in high-traffic environments, including API design, monitoring, and advanced debugging.
  • AI-Native workflow: Hands-on experience integrating AI coding tools (e.g., Cursor, Claude) into your daily development cycle.
  • Strong communication skills and a proven ability to drive cross-functional collaboration.

Nice to have

  • Experience scaling E-commerce or marketplace platforms.
  • A background in Java or Ruby to support modernization and refactoring projects.
  • Open source contributions or practical experience with AI/ML integration.

Culture & Benefits

  • Work in a company transforming with an AI-first approach.
  • Culture that inspires innovation, rewards risk-taking, and celebrates success.
  • Opportunity for immediate and meaningful impact due to the company's scale and speed of transformation.
  • Encourages candidates to leverage AI tools during the hiring process.
  • Commitment to building strong communities through thriving small businesses.