Barcelona, Full-time, Hybrid

Fledge

We are a boutique search firm connecting exceptional Talent with the most innovative companies and products that positively impact our societies. We present a tailor-made solution between fine consulting and versátil Talent search process outsourcing:
- Fractional Talent Acquisition Advisory
- Recruitment operation tooling
- On-demand Talent Search

? Company summary

Our client is a high-growth European tech scale-up on a mission to redefine how the world consumes. They believe in a collaborative economy where smart technology makes sustainable, second-hand trade the global norm.
Operating as a major cross-border marketplace in Spain, Italy, and Portugal, they manage a massive ecosystem with hundreds of millions of products. Their goal is to blend the trust of traditional classifieds with the seamless convenience of a modern marketplace.

✅ In this role, you will:
- You’ll spend your time writing and maintaining clean, scalable code in Java or Kotlin, depending on where your team’s focus lies.
- You won’t just "code to spec",



you’ll use Domain-Driven Design to build features that actually map to the real-world problems we're solving.
- You’ll help us modernize and refactor legacy parts of our system, ensuring everything stays healthy and performant as we grow.
- You’ll help raise the bar for the whole team by creating solid testing strategies and participating in a code review culture that’s about mentorship, not just nitpicking.

✅ For this job, you must:
- Master our stack:
- Kotlin & Java
- Spring Boot & Ktor
- Kafka & RabbitMQ
- MySql, DynamoDB, Redis & RedShift
- Docker
- Solr & ElasticSearch
- AWS: S3, ECS, RDS, Lambdas, CloudWatch, MSK, SES, CloudFront & more
- You enjoy digging into complex technical puzzles and finding the most elegant way to solve them.
- You have a quality-first mindset, but you’re also pragmatic—you know how to balance perfect code with the need to deliver real value to our users.
- You’re someone w

📌 Backend Engineer (Barcelona)
🏢 FledgeHQ
📍 Barcelona