Our team is growing fast, and our ambitions are general. We operate at the intersection of health, gamification, and technology , and we're building a world-class engineering team to support this growth. If you're passionate about building high-performance backend systems and leading the people who build them, we'd love to meet you!
Please send the CV in English.

As Backend Engineering Manager at Macadam, you'll own two things at once: the technical quality of our backend, and the day-to-day leadership of a team of 5 engineers. You'll report directly to the Director of Engineering. Engineering Excellence: Beyond just shipping, you’ll actively improve our backend processes, track performance, and sharpen our delivery lifecycle.
I’m looking for someone who trusts AI to multiply their output and who will push our team to grow and iterate faster because of it.
The Reality: You’ll be leading a team of 5 backend engineers in a NestJS/TS/Postgres/GCP environment.

6+ years of experience in backend development, with production systems at scale.
~ Deep expertise in TypeScript and NestJS, you're the person others come to with hard questions.
~ Strong PostgreSQL skills:



indexing, query optimization, schema design at scale.
~ Hands-on experience with Redis and Google Cloud Platform .
~ Experience with Prisma ORM or equivalent is a strong plus.
~ You've led or mentored engineers before, you know how to give direct feedback and grow people.
~ Fluent in English.

Backend: Node.js with TypeScript, NestJS framework, Prisma ORM .
Database: PostgreSQL , Redis (caching).
Infrastructure: Google Cloud Platform (Cloud Run, Pub/Sub, Cloud Storage).
React Native with TypeScript.
BigQuery, Mixpanel, Metabase.
Practices: REST APIs, CI/CD pipelines, code reviews, agile sprints.

WHAT'S IN IT FOR YOU
~ Real ownership: lead a backend team and ship systems used by millions from day one.
~ Hybrid working culture with international flexibility.
~4 Macadam holiday days.
~ We don’t just talk about change - we walk it.
Make it happen - take ownership, drive outcomes that matter.
Trust the data - decide clearly, act confidently, measure what counts.

📌 Principal Backend Engineer Golang (Barcelona)
🏢 MACADAM
📍 Barcelona