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Justin Dumas-CarrJD

Justin Dumas-Carr

AI Engineer / Claude Partner

€650/day
Paris, FR
8-15 years

Average response time: 1 hour

About Justin

  • English

    Native or bilingual

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Roving Health
    Data / AI Engineer
    January 2026 - Today (6 months)
    Built AI call classification on Claude (AWS Bedrock) for a hospital — ~600 calls/day
    categorized by intent and quality, withschema validation preventing bad LLM output from reaching the database(an eval/guardrail at the write boundary). Owned the surrounding production system: event-driven ingestion (webhooks → API Gateway → SQS → Lambda classifier → RDS) with idempotency, DLQ failure isolation, and HIPAA controls (PHI masking, KMS, pgAudit, cdk-nag). Built GraphQL EHR integrations (Healthie) and a billing rollup engine for CMS-1500 claims. *Claude
    • · Python
    ◦ · AWS Bedrock/CDK/Lambda/SQS/RDS
    ◦ · Drizzle
    ◦ · Postgres*
  • Siasola
    Founder & Lead Engineer
    January 2024 - Today (2 years and 6 months)
    Built and operate a multi-agent orchestration framework — agent teams own tasks from research through execution and self-verification, auto-deploying above a 0.85 confidence threshold — reaching ~95% ideation-to-deploy autonomy across 9 concurrent projects. Built a 21-tool Model Context Protocol (MCP) server (Python, 2,260 lines) with an FTS5/BM25 search engine, cross-project constraint validation, and execution-trace logging — the context backbone the agents run on. Made evals first-class: a 6-layer confidence-scored verification gate per change. Cut LLM/inference cost 98% ($120→$2/mo) by self-hosting on serverless GPU; built a
    4-stage daily pipeline (3.75× speedup via asyncio). *Claude/OpenAI/Gemini
    • · Python
    ◦ · TypeScript
    ◦ · asyncio
    ◦ · Convex
    ◦ · Supabase
    ◦ · Sentry*
  • Astek
    Senior Data Engineer
    January 2024 - January 2025 (1 year)
    Set up Azure Delta Lake; Spark in Synapse for clean-and-query at scale. Migrated Montreal Airport's (YUL) Data from SQL Server to Azure for Data Analysis Machine Learning.

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Education

  • B.Sc. Computer
    Concordia University
    2023
    B.Sc. Computer
  • Microsoft Certified: Azure Enterprise Data Analyst Associate
    2023
    Microsoft Certified: Azure Enterprise Data Analyst Associate

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