Labhouse is a fast-growing startup that builds, launches, and scales its own AI & Productivity Apps, operating under a subscription-based business model. We operate at the intersection of mobile technology, AI, and product-driven growth, with a strong focus on experimentation and performance. Would you like to make an impact as part of a company that builds the best mobile apps used by millions of users worldwide?

Implement and improve attribution models (Appsflyer, GA4, custom server-side) ensuring it remains accurate and reliable. Design and maintain server-to-server integrations with ad networks (Meta, Google Ads, ASA, TikTok, Snapchat). Ensure monitoring, QA, and debugging of discrepancies between internal data and ad platforms.

Continuously improve attribution accuracy and signal quality, through custom pipelines, experimentation, monitoring and debugging of discrepancies. Previous experience enriching and sending signals from mobile apps to Ad Networks to optimize campaign performance (Meta CAPI,



TikTok CAPI, Google Ads API, etc) Proven experience with REST APIs, webhooks, API integrations and serverless environments. Solid knowledge of SQL/NoSQL databases.

Proficiency in backend technologies such as TypeScript, Python, and Go. Eye for detail and a product-first mindset, with a passion for creating exceptional user experiences. Self-driven, entrepreneurial attitude with the ability to work autonomously and take ownership of projects.

Good level of spoken and written English. Ability to collaborate effectively with cross-functional teams, including engineering, product, and marketing. Remote work from anywhere in Spain. If you are based in Barcelona, we would love for you to join us at the office (Barcelona Tech City) at least two days a week.

Permanent contract with competitive compensation.

📌 Backend Engineer (Marketing Technology) (Barcelona)
🏢 Labhouse
📍 Barcelona