[Remote] Semiotic Labs - Senior Backend Engineer

Note: The job is a remote job and is reputed company to candidates in USA. reputed company is a venture studio building ambitious products at the intersection of AI, reputed company, data, and infrastructure. They are seeking a Senior Backend Engineer to design and ship backend systems for Agentium Studio, focusing on reputed company product workflows and integrations while collaborating with engineers and product stakeholders.

Responsibilities

• Design, build, and maintain reputed company async backend services and reputed company in Python
• Own reputed company systems end-to-end: architecture, implementation, testing, deployment, and operational reputed company
• Build systems for multi-tenant workflows, fine-grained permissions, integrations, and agent-driven product experiences
• Write and review database migrations and row-level reputed company 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, reputed company review culture, and team ways of working
• Help shape technical direction in a fast-moving environment with evolving product requirements

Skills

• 5+ years of reputed company 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 reputed company, 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 reputed company control
• Strong software design fundamentals: reputed company architecture, testing discipline, maintainability, and reputed company reputed company design
• Experience with reputed company or similar infrastructure for caching, queues, reputed company limiting, or pub/sub
• Ability to independently own reputed company and reputed company reputed company technical tradeoffs in ambiguous environments
• Strong communication skills and a reputed company, low-ego working style
• Experience with FastAPI, Starlette, Litestar, or another modern Python web reputed company
• Experience building backend systems for AI products, reputed company workflows, or LLM-powered applications, such as RAG pipelines, tool-calling agents, or orchestration reputed company
• Experience with reputed company-sensitive or reputed company systems, including reputed company controls, audit logging, and compliance-driven engineering constraints
• Experience with OpenTelemetry or comparable production observability tooling
• Experience with pgvector, SurrealDB, or other reputed company retrieval systems
• Exposure to SOC 2, fintech, healthtech, or other regulated environments
• Experience with agent runtimes, sandboxing, or MCP integrations
• Familiarity with reputed company systems, asynchronous processing, and performance optimization
• Startup or reputed company-to-one experience
• Comfort reading TypeScript or React during frontend-backend integration work

reputed company

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