SplitMetrics is a integral software company offering an ecosystem of products and services that serve as a growth engine for top mobile-first businesses worldwide. Our ecosystem includes:

• SplitMetrics Acquire, a platform for automating and optimizing Apple Ads.
• SplitMetrics Agency, a full-service mobile marketing agency staffed by top experts.
• SplitMetrics Optimize, an A/B testing platform recognized as the ASO Tool of the Year.
• App Radar by SplitMetrics: an ASO platform with advanced keyword and competitor insights.

Why SplitMetrics?

• For over 11 years, we’ve been at the forefront of the mobile marketing industry, building an ecosystem of market-leading technologies.
• An Apple Ads Partner, SplitMetrics is the 1st company to build the Apple Ads management platform.
• Working with top mobile companies and brands globally: Skyscanner, Glovo, Flo, Babbel, Wooga and many more.
• Generating an impressive transaction volume, with over $1 billion in ad spend flowing through our ecosystem.
• Integrated AI into our strategic approach since 2023.




• Effectively collaborate across 20+ countries with a remote-first and supportive culture.

We’re looking for a Senior Backend Engineer (Python) who will join our team.

What will you do:

• Design and build backend services in Python (FastAPI)
• Implement async job execution and status tracking (Redis/Celery/Kafka)
• Integrate with LLM services (internal & external)
• Build and maintain external MCP servers that expose our platform to third-party AI agents and clients
• Develop ETL pipelines and ensure data quality across ingestion, transformation, and storage
• Ensure stability, observability, and cost-efficient inference

About you:

• 4+ years Python backend experience
• Strong FastAPI experience
• Solid PostgreSQL + S3 (or equivalents)
• Experience with async task queues (Celery, Redis, Kafka)
• Production experience integrating with microservices: long-running jobs, retries, failure handling
• Solid hands-on experien

📌 Senior Backend Engineer (Barcelona)
🏢 SplitMetrics
📍 Barcelona