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Evanthel/README.md

Hi, I'm Piotr Obiegły

AI/NLP-focused developer working at the intersection of language, code, and applied AI.

I bring 10+ years of experience in translation, localization, and multilingual product systems. I now build on that foundation through Python, TypeScript/JavaScript, data workflows, and practical AI tools for language-focused and user-facing applications.

Current focus

  • LLM workflows, prompting, and structured outputs
  • Python for language tooling and automation
  • browser-based AI tools and API integrations
  • data analysis and decision support
  • multilingual product quality, terminology, and localization systems

Featured projects

  • SmartWatch - AI YouTube Video Analyzer | Chrome Web Store
    Chrome extension with transcript retrieval, Gemini-based analysis, saved settings, and side-panel UX for goal-driven video review.

  • Xenophon - RAG Agent & MCP Server | Live demo
    Portfolio AI assistant combining Supabase/pgvector RAG, inspectable planning and grounding verification, side-by-side evaluation, and an MCP server exposing the knowledge base.

  • ShortsAI | Live demo
    Weather-aware outfit planner built with shared web and mobile logic, deterministic recommendation rules, and an AI explanation layer constrained to explain rather than decide.

  • PDF-to-JSON RAG
    Local-first Python document intelligence workspace with a web UI and CLI for structured PDF extraction, quality inspection, grounded retrieval, and page-level citations.

  • Polar Recovery Exporter
    Python tool built on the Polar AccessLink API to export daily recovery metrics into an analysis-ready CSV pipeline.

Stack

AI / NLP: LLM workflows, prompting, structured outputs, retrieval-oriented pipelines, spaCy, Hugging Face, PyTorch

Programming: Python, TypeScript, JavaScript, React, Next.js, Expo, HTML/CSS, Pandas, SQL, REST APIs, Git/GitHub

Data & platforms: Supabase, vector databases, browser extension development, CLI tooling, evaluation workflows

Localization & product quality: memoQ, Trados Studio, Lokalise, Phrase, Crowdin, localization engineering, terminology management, product QA

Links

Website LinkedIn Kaggle

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  1. smartwatch-youtube-analyzer smartwatch-youtube-analyzer Public

    Chrome extension for goal-aware YouTube transcript analysis with Gemini, caching and resilient transcript retrieval

    JavaScript

  2. xenophon-rag-agent xenophon-rag-agent Public

    Forked from klodzikowski/lmt-ai-19-chatbot

    Portfolio AI assistant with RAG, source citations, an inspectable agent pipeline, and Supabase Edge Functions.

    JavaScript

  3. pdf-to-json-rag pdf-to-json-rag Public

    Local-first PDF document intelligence with a web workspace, structured extraction, quality inspection, grounded retrieval, and citations.

    Python

  4. polar_recovery_exporter polar_recovery_exporter Public

    Minimal Polar AccessLink exporter for sleep, HRV, and recovery data → clean CSV for analysis and AI journaling

    Python 1