Marketing Backend Engineer

LABHOUSE; Barcelona; Híbrido; EUR 90.000 - 130.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Remote work from anywhere in Spain

Office in Barcelona (Barcelona Tech CI

Descripción de la vacante

Labhouse is hiring a backend/attribution engineer in Barcelona, focused on owning the end-to-end attribution and signals system. You will drive technical decisions and best practices across the organization, implementing models and server-side integrations with major ad networks to ensure data accuracy and reliable campaigns.

You will work with REST APIs, serverless environments, and a stack including TypeScript, Python, and Go, collaborating with product and engineering teams in a fast-growing

Formación

• Strong knowledge of attribution / tracking mechanisms (pixels, UTMs, ID-based matching, MMPs, SRN, SKAN, W2A).
• Experience sending signals from mobile apps to Ad Networks to optimize campaigns (Meta CAPI, TikTok CAPI, Google Ads API).
• Proven experience with REST APIs, webhooks and serverless environments.
• Solid knowledge of SQL/NoSQL databases.
• Proficiency in backend technologies: TypeScript, Python, Go.

Responsabilidades

• Own end-to-end attribution and signals system and drive technical decisions.
• Implement and improve attribution models across platforms.
• Design and maintain server-to-server integrations with ad networks (Meta, Google, TikTok, Snapchat).
• Ensure monitoring, QA, and debugging of discrepancies between internal data and ad platforms.
• Continuously improve attribution accuracy and signal quality.
• Lead long-term evolution of the platform balancing impact, scalability and reliability.

Conocimientos

Attribution / tracking mechanisms

REST APIs / webhooks

SQL / NoSQL databases

TypeScript

Python

Go

English communication

Ownership / proactivity

Herramientas

Meta CAPI

TikTok CAPI

Google Ads API

GA4

Descripción del empleo

Labhouse is a fast-growing startup that builds, launches, and scales its own AI & Productivity Apps, operating under a subscription-based business model.

Based in Barcelona, Labhouse was founded by Andrés Bou and Horacio Martos (Co-Founders of SocialPoint).

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? If so, discover your next challenge below.

Responsibilities:

• 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.

About You:

Technical expertise:

• 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

Problem-solving and product focus:

• 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.

Communication:

• Good level of spoken and written English.
• Ability to collaborate effectively with cross-functional teams, including engineering, product, and marketing.

What we Offer:

• 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.
• Competitive compensation
• 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.

Hiring Process

• TA Interview – Initial conversation to get to know each other and understand your background.
• CEO / Product Team Interview – Deep dive into your product thinking, experience, and fit with the team.
• Technical Case – Practical exercise to assess your product, analytical, and strategic capabilities.
• Final Interview – Final conversation to ensure alignment on expectations, culture, and role fit.

You should Know:

Labhouse is proud to be an equal-opportunity employer. However you identify or whatever your journey to this point, we welcome all candidates to apply for the position that inspires them.

Come join us and help us build a company that everyone is proud to be part of.