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McKinsey & Company Logo

AI / Agentic Software Engineer

McKinsey & Company

Salary not specified
Oct 15, 2025
Boston, MA, US
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The firm is looking to build a platform that will enable the next generation of client service, focusing on a distinctive combination of AI capabilities, domain expertise, and human judgment. This involves developing exciting technology for the firm by designing, building, and operating agentic systems that power GenAI applications.

Requirements

  • Proven agentic systems experience with LangGraph/LangChain (function/tool calling, state management, planning, retries/fallbacks)
  • Orchestrating ETL/DAG workflows (Airflow, Prefect, Dagster, AWS Step Functions) with idempotency, backfills, SLAs, lineage
  • Strong Python (asyncio, FastAPI, Pydantic); TypeScript/Node.js a plus
  • Expertise in React and Next.js (SSR/ISR, streaming UIs)
  • SQL mastery with PostgreSQL/RDS; solid schema design and query optimization
  • Retrieval & data layer: vector search (pgvector/FAISS/Pinecone) and knowledge graphs (SPARQL/Gremlin) for RAG/memory
  • CI/CD with GitHub Actions; GitHub PR workflows; Docker/Kubernetes; AWS (ECS/Fargate, Lambda, S3, CloudWatch, IAM)

Responsibilities

  • Design, build, and operate agentic systems that power GenAI applications.
  • Use LangGraph and LangChain to author multi-step, tool-using agents with robust state management, planning, and recovery.
  • Define and evolve function/tool schemas.
  • Implement tool routing, parallelization, and fallbacks.
  • Integrate retrieval, memory, and context windows.
  • Add guardrails, evaluation harnesses, and tracing for safety and observability.
  • Expose agents via APIs and workflows.

Other

  • Thrives in a high performance/high reward culture.
  • Resilience to try another way forward.
  • Continuous learning and embracing fast-paced learning.
  • Owning your journey.
  • Strong problem-solving, ownership mindset, and comfort in a fast-paced, collaborative environment.