Senior Backend Engineer (Python)

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. 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 searching for a Senior Backend Engineer with data engineering experience to join our Platform team. In this role you will: Build scalable, high-load systems in Python. Work with big data: adapt the product to process 200–400M+ records per day. Design and develop integrations with multiple external channels behind a unified, channel-agnostic data model and API. Ensure data quality and consistency across channels: validation, reconciliation, monitoring of freshness and completeness. Build and maintain data pipelines: ingestion, normalization, deduplication and backfills. Improve system reliability, observability and cost efficiency. Design, build, deploy, monitor and maintain products. Rewrite legacy systems with modern technologies. About you: 5+ years of commercial experience with Python. Excellent knowledge of raw SQL. Experience with data stores like PostgreSQL (deep understanding of engine, performance optimization). Experience in building solutions based on microservices and scaling such systems. Experience with modern CI/CD approaches and tools. Experience setting up and improving the development process. Strong focus on business implications when making decisions on architecture. Hands-on experience building data pipelines and ETL/ELT processes at scale. Experience integrating with many external APIs and designing a unified abstraction layer over heterogeneous data sources. Nice to have: Experience with analytical/columnar storage (ClickHouse, BigQuery, Snowflake, Redshift). Experience with message brokers. Domain knowledge in AdTech / mobile marketing (ad networks, attribution, MMPs). Experience with async Python for high-throughput API ingestion. Experience building LLM-powered features or AI agents on top of production data. Experience with Kubernetes, Docker and cloud platforms (AWS / GCP). Experience building MCP servers that expose platform data and actions to AI agents and LLM tools. Experience with observability tools (Grafana, Datadog). What is there for you? 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. Our Culture 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 FastGet Sh*t DoneBuild TogetherStrive for TransparencyOwn What You DoLearn + Share = Excel 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.