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Achievement: Pair Extraordinaire

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Achievement: Pair Extraordinaire

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qquante/README.md

Douglas Silva

Full Stack Developer · Backend Engineering · Applied AI

I build full stack applications, data systems, and automation tools, with a focus on backend engineering and applied AI. Developing independent software projects since 2019, across APIs, databases, asynchronous processing, user interfaces, and developer tooling.

Open to backend and full stack roles involving applied AI, automation, developer tools, or data-intensive products.

Language mix

Most used languages across my GitHub repositories

Technical focus

Backend and data Frontend and visualization
Python · FastAPI · Go · Rust · Node.js TypeScript · JavaScript · React
PostgreSQL · SQLite · Redis · NATS JetStream · Docker Three.js · HTML · CSS
Applied AI and developer tools Automation and blockchain
Model Context Protocol (MCP) · LLM integrations · local inference Blockchain data systems · RPC monitoring
Typed output validation · versioned policies · decision records Electron · browser automation · MQL5

Selected projects

  • Market Data Platform — Python/FastAPI ingestion with PostgreSQL, Redis, a transactional outbox, and recoverable event delivery.
  • Agent Workspace Manager — Go and Docker workspaces with provider access controls, usage records, and MCP policies.
  • Content Intelligence Engine — Applied AI integrations with typed outputs, evidence-linked assessments, and a persistent decision ledger.
  • Contract Analysis Runtime — Resumable security-analysis workflows with explicit evidence states and an MCP interface.
  • Interactive Retail Storefront — A React/TypeScript retail prototype with catalogue navigation, a local bag, and Three.js visuals.
  • Persistent Web Workspaces — An Electron desktop application for organizing persistent browser profiles and isolated sessions.

I work end to end: clarify the problem, define data and API contracts, build the backend and interface, and validate behavior with automated checks. I pay close attention to persistent state, failure handling, and traceability so workflows can be inspected and resumed.

Pinned Loading

  1. giphy-tenor-downloader giphy-tenor-downloader Public

    Python 3

  2. async-token-worker-rs async-token-worker-rs Public

    A Rust asynchronous worker with Redis messaging, bounded concurrency and BSC token-deployment integrations.

    Rust

  3. content-intelligence-engine content-intelligence-engine Public

    A Python pipeline that turns source content and typed model answers into durable, evidence-linked assessments.

    Python

  4. contract-analysis-runtime contract-analysis-runtime Public

    A contract-first runtime for repeatable, resumable security campaigns with explicit evidence states.

    Python

  5. contract-message-router contract-message-router Public

    A Telegram message pipeline for extracting contract addresses, applying routing rules and retaining local history.

    Python

  6. gpu-operations-monitor gpu-operations-monitor Public

    A multi-service dashboard for GPU worker status, provider observations and operational cost tracking.

    Python