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sergio-lim/README.md

Hi, I'm Sergio Lim

Sergio Lim — AI agents, automation, Flutter/Python

Flutter/Dart · Python · AI agents & automation

I build software end to end and I ship it. Lately my focus is AI agents and automation: decision layers, long-term memory, and pipelines that run on their own and report back.

  • 🧠 I like small, legible systems: stdlib-first, no magic, every claim measurable.
  • 🤖 I integrate new models the week they land, and I keep the ones that actually pay off.
  • 🚀 Based in Montevideo, Uruguay — remote-friendly.

Featured projects

Project What it is
ai-job-hunter A keyless job-hunting pipeline: collect from public boards, dedupe, verify every link, score the fit against a profile, and classify recruiter replies (regex with an optional LLM hook). Runs offline in demo mode, with an animated CLI demo and a daily GitHub Action.
ai-decision-engine Give your agents typed decisions instead of parsing LLM text. A decision-model layer (Jev / TypeSafe) with confidence-gated routing, plus a regex baseline benchmark (100% vs 75% accuracy).
agent-long-term-memory Your agent wakes up with amnesia. A dependency-free long-term memory with provenance, offline BM25 retrieval and a compiled wiki with backlinks.
prompt-injection-lab Your agent reads the internet; the internet reads your agent's instructions. An offline, reproducible lab on prompt injection against tool-using agents, with defenses and a success-rate matrix.
skill-demand-radar What skills does the market actually want? A daily keyless job-market radar with a static dashboard, auto-updated by GitHub Actions.

All five run offline or with a single env var, with no pip dependencies.

Also worth a look

Project What it is
retell-web-call-react Talk to an AI voice agent from the browser: a React frontend that joins a live web call and a tiny Node/Express backend that mints the Retell access token, so the API key never leaves the server.
botfieldgame A live 10×10 arena where autonomous bots hunt bananas, dodge poison and climb a leaderboard — FastAPI + WebSocket with a JSON bot protocol.
tts-openai Turn a text file into natural-sounding speech with OpenAI's TTS API. One file, no framework.

What I work with

Flutter · Dart · Python · Node/TypeScript · LLM agents · prompt engineering · tool use · decision models · retrieval · automation · CI/CD · GitHub Actions · Docker · SQL

A few principles

  • Measure, don't vibe. Every project here has a number attached.
  • Boring infrastructure. Fewer dependencies, fewer surprises.
  • Show the work. Repos you can run, not slide decks.

Open to remote roles and interesting automation problems.

Pinned Loading

  1. ai-job-hunter ai-job-hunter Public

    Keyless CLI pipeline: collect public job posts, dedupe, verify links, score against a profile, and classify recruiter replies. Runs offline in demo mode.

    Python

  2. ai-decision-engine ai-decision-engine Public

    Give your agents typed AI decisions instead of parsing LLM text. Jev (TypeSafe) classifier with confidence-gated routing + regex baseline benchmark.

    Python

  3. agent-long-term-memory agent-long-term-memory Public

    Your agent wakes up with amnesia. A long-term memory with provenance, offline BM25 retrieval and a compiled wiki. No deps, no keys.

    Python

  4. prompt-injection-lab prompt-injection-lab Public

    Your agent reads the internet. The internet reads your agent instructions. An offline, reproducible lab on prompt injection against tool-using agents, with defenses and a success-rate matrix.

    Python

  5. skill-demand-radar skill-demand-radar Public

    Daily public radar of which skills the job market asks for. Keyless job APIs, transparent taxonomy, static dashboard auto-updated by GitHub Actions.

    Python

  6. retell-web-call-react retell-web-call-react Public

    Browser voice calls with an AI agent: React frontend + tiny Node/Express backend that mints a Retell access token. The API key stays server-side.

    TypeScript