Sérgio Brito
Founding Engineer · AI Systems
Senior full-stack engineer. 10+ years shipping complete products from zero to production. I architect systems, build AI pipelines, own the whole stack — backend, mobile, infrastructure. 3 solo products live, international experience across fintech, healthtech, e-commerce.
Building Solutions &
End-to-End
From backend architecture to user experience to AI pipelines — I deliver complete systems that work at scale.
Sérgio Brito
Founding Engineer · Senior Full-Stack · AI Systems
Senior software engineer with 10+ years turning ideas into shipping products. Sometimes as a core engineer inside a team, sometimes building the whole thing solo from scratch — across fintech, healthtech, e-commerce, logistics, and edtech. Platforms serving thousands of concurrent users, in production.
I build AI products from scratch in production: video pipelines with FFmpeg + Gemini Vision, multi-LLM agents via OpenRouter (GPT, Claude, Gemini, Llama, Mistral), tool calling with 8+ simultaneous tools, RAG, Whisper transcription, image analysis, and real-time streaming via WebSocket. International experience with US-based companies and globally distributed teams.
Tech & Stack
Technologies and tools I use to build robust, scalable production systems.
Backend
Robust APIs and scalable systems with a focus on performance and maintainability.
Frontend
Responsive, modern interfaces with high-productivity frameworks.
Mobile
Native and cross-platform mobile apps with smooth experiences.
Data & Databases
Advanced data modeling, query tuning, and data solutions at scale.
AI Engineering
Production AI systems architecture with multiple LLMs, autonomous agents, and per-token cost optimization.
Multimodal Pipelines
Video, audio, and image processing with AI — from capture to insight, in batch or real-time.
Cloud & DevOps
Automated infrastructure, continuous deployment, and reliable production environments.
Testing
Comprehensive test coverage and quality automation at every level.
Systems Architecture
High-scale distributed systems design focused on resilience, decoupling, and sustainable evolution.
Design & Modeling
Design patterns and data modeling to turn complex problems into elegant, data-driven solutions.
Leadership & Processes
Technical mentorship, code review, and agile delivery processes.
Professional Journey
Over a decade building production systems for companies across industries and scales.
Senior Data Migration Engineer
Monument (Remote, US)
Led client data migration for self-storage platform — dozens of enterprise clients, hundreds of facilities, thousands of units.
Principal Software Engineer
VIK (Remote)
Led platform re-architecture for enterprise B2B; 99%+ performance improvement.
Senior Software Engineer (Consultant)
META | YOUSE — Caixa's Digital Insurance (Remote)
Led legacy data migration for Brazil's largest digital insurer.
Software Engineer
Adminer (Remote, B2C)
Built e-commerce analytics platform processing millions of requests per day.
Java Software Developer
MJV Technology & Innovation | Bradesco Insurance (Remote)
Critical features for insurance system with batch processing up to 1M records/day.
Java Developer
PSG | DETRAN — Government Traffic Dept. (Remote)
Full lifecycle of large-scale government infractions system.
Programming Instructor (Java)
Portal Educação (On-site)
Taught Java and OOP to kids and teenagers; designed lesson plans from scratch.
Featured Projects
Personal and professional projects showcasing technical breadth and delivery capability.
SelfScore
Amateur football analytics platform with a 5-phase video pipeline (FFmpeg + Gemini Vision), real-time analysis with 8 simultaneous tool calls, 5 AI narrator personalities, and personalized per-player coaching.
- Video pipeline: chunking → transcription → segmentation → cutting → AI analysis
- Live analysis with function calling (8 tools) and WebSocket streaming
- 5-layer AI coaching with per-player profiling
Free Diária
Gig-work marketplace with intelligent matching, swipe discovery, and digital wallet with PIX integration.
- Intelligent professional matching
- Swipe-based discovery interface
- Digital wallet with PIX integration
AircTech
AI-powered dev studio with automated project scoping via conversational agent with structured requirements extraction.
- Conversational agent for project scoping
- Structured requirements extraction via AI
UpperGR
Fleet management system with tracking and analytics for 10,000+ vehicles.
- Management of 10,000+ vehicles
- Real-time tracking and analytics
Other Projects
Giants (multi-agent AI sales platform, multi-channel), Organaizer (multimodal personal assistant with Whisper + Vision + tool calling), BBE Tour Generation (RAG), Hetal Retail (120K+ test lines), 20+ Docker setups, dozens of production AI agents.
- Giants: multi-LLM sales agents (Claude, GPT, Gemini) with human takeover
- Organaizer: multimodal assistant with DB-driven capabilities and tool calling
- Dozens of production AI agents for real businesses
Let's Talk
Interested in working together? Get in touch and let's discuss how I can contribute to your project.
Available for remote projects and consulting. I respond within 24 hours.
Send a Message
Ready to Build Something Great?
10+ years building production systems, shipping solo products, and integrating AI that actually works. Ready for the next ambitious project.