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DiligenceSquared

Founding Engineer - Backend

Founding backend engineer architects scalable AI-powered services, agent orchestration, and voice AI pipelines for automated market due diligence platform. Requires 3+ years Python backend, production APIs, LLMs, PostgreSQL, and async systems expertise.

160k – 200kNew York, NYBackend EngineeringOnsite3+ YOE
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About the role

Responsibilities

  • Build new product features and experiences end-to-end, from database models to API endpoints, integrating with UI components for web and AI Voice Agent Application.
  • Design and build new AI-powered modules from scratch (e.g., market sizing, competitive analysis) for the research platform.
  • Build and own product foundations (AI agent orchestration, voice AI pipelines, app and API performance, intelligent automations).
  • Architect scalable backend services with complex async processing and background task orchestration.
  • Apply learnings from each project to improve the product continuously.

Qualifications

  • 3+ years of professional Python backend experience.
  • Strong expertise building production APIs (FastAPI, Django, or similar).
  • Experience building agentic systems with LLM platforms (Anthropic, OpenAI, or similar).
  • Deep hands-on experience with LLMs in production - building reliable agentic systems.
  • Experience with PostgreSQL and SQL database design.
  • Understanding of async programming, job queues, and distributed systems.
  • Experience with background task orchestration and async processing workflows.

Bonus

  • Experience with Anthropic Claude API and Agent SDK.
  • Familiarity with agent orchestration frameworks.
  • Background in AI/ML systems or voice AI.
  • Familiarity with vector databases and semantic search (pg_vector, etc.).
  • Experience with Supabase or similar Backend-as-a-Service platforms.
  • Previous startup experience.

Skills

PythonFastAPIDjangoPostgresSQLLLMsAnthropicOpenAIAsync ProgrammingJob QueuesDistributed SystemsPg_VectorSupabase

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