Hey, I'm Peter 👋

Senior Full-Stack Engineer · Java · Spring Boot · React · AWS · Flutter
Lake Mary, FL, USA · U.S. Permanent Resident

I build secure, scalable systems that solve real problems — from enterprise legal platforms to multi-tenant SaaS and published mobile apps.

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🧠 About Me

18+ years building enterprise systems across government, financial, and education sectors. I've architected platforms that process 5M+ daily records, handle 400M+ monthly invoices, and serve thousands of concurrent users across multiple tenants.

I work across the full stack — backend microservices, cloud infrastructure, CI/CD pipelines, and frontend interfaces — with a strong focus on clean architecture, security, and performance.

🛠️ Core Stack

Backend
Java Spring Boot Spring Security Python

Frontend
React Next.js TypeScript Tailwind Flutter

Databases
PostgreSQL MongoDB Redis Oracle

Infrastructure & DevOps
AWS Docker Kubernetes GitHub Actions Kafka

🚀 Featured Projects

🎮 FogOfWar — Gaming Market Intelligence Dashboard

React TypeScript GraphQL Node.js Supabase Groq AWS EC2 Vercel GitHub Actions

Real-time market intelligence dashboard for indie game founders and scouts. Aggregates signals from Steam, SteamSpy, Twitch, and Reddit, processes them through a Groq-powered LLM pipeline, and delivers actionable insights via a dark-mode gaming dashboard. Features a RAG pipeline with local embeddings (all-MiniLM-L6-v2) and pgvector for semantic game search.

🌐 Live demo available at fogofwar.peter-campos.site

Full Project Details →

⚖️ IURIS — Legal Case Management System

Java EE WildFly PostgreSQL JSF Docker Railway RabbitMQ Spring Boot Microsoft Graph API

Legal platform in active production use since 2017. Features Microsoft 365 integration via Graph API, granular RBAC, case audit timelines, document template banks, and financial tracking per case.

🌐 Live demo available — explore the full feature set with the demo credentials provided in the project repository.

Full Project Details →

📱 El Viaje de Martina — Flutter Mobile App

Flutter Dart Offline

Educational mobile app developed for Universidad de los Andes & University of Southampton, designed to teach migrant women about their sexual and reproductive rights. Offline-first content with embedded podcast support. Published on App Store & Google Play under Coolearning Consulting LLC.

The project agreement has ended and the app is no longer available in the stores. With Coolearning's permission, the app can be distributed directly — download the APK for Android, or send an email to request a TestFlight invitation for iOS.

📂 Full details, download instructions and file verification available in the project repository.

Full Project Details →

💼 Notable Work

Project Role Impact
Sylem LMS — Multi-tenant SaaS platform Architect & Lead Engineer Designed architecture and built entire stack; reduced cloud costs 30–40% vs traditional LMS solutions like Moodle
Normalizacion de Saldos — DIAN debt-sync system Tech Lead & Architect 5M+ daily records; batch recovery reduced from 48h → 2h; infrastructure cut 50%
Electronic Invoicing — DIAN Architect 400M+ monthly invoices on Azure Cosmos DB under strict regulatory deadlines
Devolucion IVA Turistas — DIAN Developer Automated VAT refunds for 3.2M international visitors

🎓 Education & Certifications

🎓 MSc Software Engineering & Computer Systems — Universidad Internacional de la Rioja, Spain (2021)
🎓 BSc Software Engineering — Universidad Piloto de Colombia (2009)
📜 SOA Architect — SOA School, Arcitura (2018)

📬 Let's Work Together

I'm available for freelance and contract work on Upwork and direct engagements.

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