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Senior Backend Engineer (Python) - AI

Remote, Barcelona·Full-time·Added 7 days ago (last checked 21 Oct)

SplitMetrics

10 open roles

Overview

Work mode
Remote (Barcelona)
Contract
Full-time
English
Required
Experience
4+ years
Benefits
Private health insurance

Visa options

  • The ad doesn’t mention sponsorship

    Not a refusal, but not a yes. Worth asking in your first message.

  • May fit the digital nomad visa

    A remote job for a company outside Spain: you apply yourself, no sponsor needed. It asks for about €2,849 a month in remote income.

More jobs that may fit the digital nomad visa

Skills

Requirements

What we're looking for

  • 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 experience with agentic AI: building MCP servers, implementing agents, and working with various LLMs and other generative models

  • Genuine enthusiasm for agentic AI and keeping up with how the field evolves

  • Basic observability skills (logging, monitoring, alerting)

  • Experience in cross-functional teams (frontend, ML)

  • Experience with AWS infrastructure, Docker, Kubernetes

Nice to have

  • Familiarity with LangChain or agentic workflows

  • Marketing technology background (ad platforms, creative tools)

  • Experience with StarRocks (or other OLAP databases, ex. Clickhouse)

Pay & benefits

What you'll get

  • Time Off: Vacation and public holidays following your country's regulations. Additional PTOs annually for personal rejuvenation.

  • Health and Wellness: Medical insurance or health care compensation. Paid sick leave to prioritize your well-being.

  • Professional Development: Top online/offline conferences and mobile industry events. Internal courses for continuous professional development.

  • Performance and Growth: Micro-management-free and supportive management style. Semi-annual performance review sessions. New career opportunities through our internal mobility program.

  • Team Engagement: Corporate online events and offline team retreats. Collaboration between teams through shared OKRs. Environment conducive to open dialogue and constructive feedback.

  • Work Flexibility: Flexible working schedule for a better work-life balance. Remote-first working environment.

  • Workspace Options: Coworking costs coverage program. Office hubs in key locations for a convenient and productive work environment.

Visa & relocation

Remote Hiring Guidelines: At SplitMetrics, we welcome team members from various countries. While all our roles are remote, certain positions may have specific eligibility requirements based on location. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.

The role

SplitMetrics is a global 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.

What you'll 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)

  • Store, version, and serve creative assets efficiently

  • 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 SplitMetrics

SplitMetrics is a software company specializing in mobile app growth and optimization, offering products such as A/B testing and analytics tools for app store pages. The company operates globally, with a focus on helping app developers and marketers improve conversion rates and user acquisition. Its careers page lists open roles, indicating an active hiring process, though specific details about its scale and office locations are not provided in the available evidence.

Industry
Software

Good to know if you are moving

  • The company uses Ashby for its careers page, which typically provides transparent job listings and application processes.
  • No specific Spain office or relocation support details are mentioned in the available evidence.
  • As a software company focused on mobile app growth, roles may be remote-friendly, but this is not confirmed.

In their own words

About the company & team

At SplitMetrics, our values are not just words - they guide everything we do. To achieve our ambitious goals and maintain success, we stand united by our core behaviors:

  • Move Fast

  • Get Sh*t Done

  • Build Together

  • Strive for Transparency

  • Own What You Do

  • Learn + Share = Excel

  • 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.

All open roles at SplitMetrics
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