> Markdown version of [/jobs/ext/3044292-lead-backend-engineer](https://www.wearedevelopers.com/jobs/ext/3044292-lead-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Backend Engineer - **Company:** Llc Labhouse - **Location:** Barcelona, Spain (Remote available) - **Salary:** €52,000.0 - €65,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Information Engineering, Data Infrastructure, Distributed Systems, Fraud Prevention and Detection, Python (Programming Language), Node.Js, Software Architecture, Software Engineering, TypeScript, Backend, Information Technology, Data Pipelines - **Published:** September 24, 2026 - **Apply:** https://www.adzuna.es/contact-us.html ## About the Role + You hold a degree in Computer Science, Software Engineering, or a related technical field. Strong academic foundations in distributed systems, data engineering, or backend architecture are a plus., + 7+ years of backend engineering experience, with a strong track record of building complex, high-scale systems from scratch + Experience working on data-intensive backend infrastructure: event pipelines, distributed systems, high-throughput APIs + Strong backend fundamentals - you can pick the right architecture for the problem, not just the one you know best + Experience working with TypeScript/Node.js is a plus, but we're open to other languages - stack is not closed + Proven ability to work autonomously and make sound technical decisions without heavy oversight + A builder's mindset: you're energized by the blank-page challenge of creating something from zero Communication + You communicate clearly and proactively - whether it's aligning with the Growth team on attribution requirements, documenting architectural decisions, or flagging blockers early. + You're comfortable working remotely and know how to stay connected and collaborative across an async environment., + Prior experience at a mobile-first company or ad tech company, especially in growth or data infrastructure + Familiarity with the mobile measurement ecosystem - knowing how these tools work helps you build better + Experience with fraud detection in data pipeline contexts + Experience hiring or mentoring engineers - you'll be doing this soon ## Description We were founded by Andrés Bou and Horacio Martos, the duo behind SocialPoint (acquired by Take-Two Interactive), and we operate with the mindset of a product company: small teams, high ownership, and a relentless focus on building things that matter. We're now looking for a Lead Backend Engineer to own one of our most technically ambitious greenfield projects - and eventually grow a team around it., We're building something new in-house - a greenfield backend system that sits at the intersection of mobile, data, and growth infrastructure. The details are under wraps for now, but the challenge is real: you'll design and build this from scratch, with full ownership over the architecture, the stack, and the technical decisions. You'll start as an IC, then grow a team around what you build. What you'll do: + Architect and build a complex, high-scale backend system from the ground up - greenfield, no legacy constraints + Choose and own the technology stack; we're open to the right tool for the job + Design reliable, low-latency data pipelines and the APIs that power the product + Work closely with Growth and Product teams to ensure the system delivers the right data for decision-making + Lay the technical foundation with future team growth in mind - your architecture decisions will shape how this team scales, 3. Technical Case - Practical exercise to assess your product, analytical, and strategic capabilities. 4. Final Interview - Final conversation to ensure alignment on expectations, culture, and role fit. ## Related Videos - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript) - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Stop Using Node.js Like It’s 2020! - Alfonso Graziano](https://www.wearedevelopers.com/videos/1863-stop-using-node-js-like-it-s-2020-alfonso-graziano) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)