Senior Agentic AI & Backend Engineer — BizFi MVP

Role overview

Senior engineer for the BizFi MVP agentic-AI and backend layer: production agent orchestration, RAG, tool/Skill contracts, multi-tenant APIs, idempotent workflows, persistence, observability, security, reliability and cost/latency control.

Responsibilities

Own the Business Agent, Finance Agent, RAG, Skills/tool contracts, agent runtime/orchestration, structured outputs, model abstraction, Langfuse instrumentation, workflow state, approvals, idempotency, tenant isolation, audit and secure backend integrations.

Required skills

• Agent orchestration
• Tool / Skill contracts
• RAG grounding
• Retrieval evaluation
• Prompt and agent security
• Idempotent task execution
• Tenant isolation
• Async job architecture
• Persistence and checkpointing
• Langfuse / agent observability
• Model routing and fallbacks
• Human approval gates
• Backend API design
• Cost and latency control
• Failure recovery

Preferred skills

Python + FastAPI preferred, or excellent Node.js/TypeScript backend engineering; PostgreSQL, REST, webhooks, queues/jobs, JSON Schema, OAuth/API keys, LLM APIs, embeddings/vector retrieval, async processing, Git, Docker and cloud deployment. Langfuse, OpenRouter, Cloudflare, pgvector/vector DBs, Redis and orchestration engines are valuable.