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kravchenkoegor/README.md

Hi, I'm Egor πŸ‘‹

I build production systems for operationally complex, regulated workflows β€” fintech to healthcare β€” where software has to survive real-world mess: documents, permissions, mobile performance, audits, and practical AI behind deterministic, human-reviewed controls.

Now β€” Founding Engineer (contract) at a medical-travel platform: sole engineer for the React Native patient app, the Next.js coordinator dashboard, and the Node/Prisma/PostgreSQL backend.

Before β€” 4.5+ years at NayaOne, an FCA-regulated fintech platform serving 80+ financial institutions: Senior Frontend β†’ Senior Full-Stack β†’ Team Lead.

Selected outcomes:

  • Killed a GraphQL N+1 on the hot path β€” 250ms β†’ 75ms for 300+ daily users, every contract byte-identical
  • Took an inherited React Native app from a 1.2 GB memory peak with OOM kills to a stable ~350 MB
  • Analyzed 35K+ user sessions with an AI pipeline, exposed a 70% onboarding abandonment rate, and led the redesign that cut it below 5%

I treat AI output as evidence to check, never authority β€” coding agents run under my own design-and-review system, retrieval answers cite or refuse, and medical redlines live in code.

Recent open source: medical-tourism-rag β€” cite-or-refuse RAG over pgvector, live landing at medtourismatlas.com Β· whisperx-serverless β€” WhisperX + pyannote meeting transcription on a scale-to-zero GPU, $0 while idle.

Open to senior/staff IC roles β€” remote, GMT+3 with strong CET overlap.

🌐 egorkravchenko.com Β· πŸ“‚ Case studies Β· πŸ“„ CV Β· πŸ’Ό LinkedIn

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  1. medical-tourism-rag medical-tourism-rag Public

    Source-grounded RAG over a medical-tourism corpus β€” FastAPI + pgvector (HNSW + MMR), cite-or-refuse grounding delegated to an external chat surface, React admin dashboard, LangChain ingestion.

    Python

  2. whisperx-serverless whisperx-serverless Public

    WhisperX + pyannote meeting transcription on a scale-to-zero RunPod GPU, with R2 storage and a Next.js UI. $0 idle.

    TypeScript

  3. aura aura Public

    Event-driven multimodal media-analysis backend β€” FastAPI producer, Redis Streams workers, authenticated WebSocket task streaming, Gemini structured output

    Python

  4. gbrain gbrain Public

    Forked from garrytan/gbrain

    Garry's Opinionated OpenClaw/Hermes Agent Brain

    TypeScript