Senior Backend Engineer - Python for Mobile Marketing

About the Role

We are seeking a Senior Backend Engineer (Python remote) to join our dynamic team at SplitMetrics. As a leading global software company, we provide an ecosystem of products and services that drive growth for mobile-first businesses worldwide. This is an exciting opportunity to work with cutting-edge technologies and contribute to impactful projects.

What You'll Do

• Design and build backend services using Python, specifically with FastMCP and FastAPI frameworks.
• Implement MCP tools and agent-ready workflows, including tool schemas and orchestration.
• Build asynchronous pipelines utilizing asyncio for concurrent I/O and task orchestration.
• Integrate with LLM services, focusing on prompt engineering and structured output parsing.
• Develop RAG pipelines, including embeddings, vector search, and retrieval strategies.
• Research and prototype new approaches, evaluating models and benchmarking retrieval methods.
• Design experiments and track quality metrics, transforming R&D findings into production features.
• Develop APIs for AI agents and internal dashboards, ensuring stability and observability.

Requirements

• 5+ years of experience in Python backend development.
• Strong experience with async web frameworks, particularly FastAPI.
• Deep understanding of asyncio, including gather, semaphores, and error propagation.
• Proficient in PostgreSQL and advanced SQL, including complex joins and query optimization.
• R&D mindset with experience in running benchmarks and iterating on prototypes.
• Experience with microservice integrations and observability tools like Prometheus and Sentry.
• Familiarity with Docker, Kubernetes, and AWS infrastructure.
• Experience with LLM integrations, including prompt design and API calls.

Nice to Have

• Experience building RAG systems and familiarity with vector databases.
• Background in marketing technology, particularly with Apple Search Ads.
• Experience with StarRocks or other OLAP databases.

What We Offer

• Flexible working schedule for a better work-life balance.
• Remote-first working environment with a supportive culture.
• Comprehensive health and wellness benefits, including medical insurance.
• Professional development opportunities through conferences and internal courses.
• Corporate online events and team retreats to foster engagement.
• Workspace options, including coworking cost coverage and office hubs.

Join us as a Senior Backend Engineer (Python remote) and be part of a team that values innovation, collaboration, and growth.