Note: The job is a remote job and is open to candidates in USA. Merciv is a venture studio building ambitious products at the intersection of AI, security, data, and infrastructure. They are seeking a Senior Backend Engineer to design and ship backend systems for their Agentium Studio, focusing on core product workflows and integrations.
Responsibilities
- Design, build, and maintain scalable async backend services and APIs in Python
- Own core systems end-to-end: architecture, implementation, testing, deployment, and operational excellence
- Build systems for multi-tenant workflows, fine-grained permissions, integrations, and agent-driven product experiences
- Write and review database migrations and row-level security policies in a compliance-sensitive environment
- Improve reliability, observability, and performance across critical paths
- Collaborate closely with product, design, and research to translate user needs into robust backend architecture
- Contribute to engineering standards, code review culture, and team ways of working
- Help shape technical direction in a fast-moving environment with evolving product requirements
Skills
- 5+ years of professional software engineering experience with substantial backend development experience
- Strong production experience building backend services in Python
- Strong experience with asynchronous programming in Python, such as asyncio, async database access, or high-concurrency service development
- Deep PostgreSQL experience, including schema design, query tuning, transactions, and production migrations
- Experience designing or implementing multi-tenant data isolation and access control
- Strong software design fundamentals: modular architecture, testing discipline, maintainability, and clear interface design
- Experience with Redis or similar infrastructure for caching, queues, rate limiting, or pub/sub
- Ability to independently own projects and make sound technical tradeoffs in ambiguous environments
- Strong communication skills and a collaborative, low-ego working style
- Experience with FastAPI, Starlette, Litestar, or another modern Python web framework
- Experience building backend systems for AI products, agentic workflows, or LLM-powered applications, such as RAG pipelines, tool-calling agents, or orchestration layers
- Experience with security-sensitive or enterprise systems, including access controls, audit logging, and compliance-driven engineering constraints
- Experience with OpenTelemetry or comparable production observability tooling
Company Overview
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