Marketing Backend Engineer

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🕒 July 29

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LABHOUSE

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2021

🤖 Artificial Intelligence

⚡ Productivity

👥 B2C

Artificial Intelligence • Productivity • B2C

LABHOUSE is a Barcelona-based product studio (est. 2021) that builds AI-powered, mobile-first productivity and utility apps used by millions. Small, cross-functional teams design native iOS/Android and web products with an AI-native UX focus, on-device privacy, and growth-driven productization. The studio emphasizes fast iteration, performance marketing, and scaling (100M+ downloads across 50+ countries) and ships apps such as Cleaner GO (privacy-first storage/utility), Invoice Fly (SMB invoicing/fintech), and Summary AI (meeting and document summarization).

📋 Description

• Own the end-to-end attribution and signals system, becoming the company’s expert driving technical decisions and best practices across the organization • 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. • Own the long-term evolution of the platform, making thoughtful architectural and prioritization decisions that balance business impact, scalability, reliability and maintainability.

🎯 Requirements

• Strong knowledge of attribution / tracking mechanisms (pixels, UTMs, ID-based matching, MMPs, SRN, SKAN, W2A, etc.) • 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. • High ownership and proactivity • Experience working in fast-growing, product-led organizations, balancing speed, scalability, and reliability in ambiguous environments • Excellent problem-solving and analytical skills, with the ability to resolve complex technical challenges. • 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.

🏖️ Benefits

• 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. • Flexible working hours. • Competitive compensation • High-end equipment for your development. • Permanent contract with competitive compensation. • A young and top entrepreneurial team in a dynamic startup environment. • Opportunity to lead, grow, and take on big challenges. • Work with cutting-edge technologies, including the chance to integrate AI models into new apps.