Baires Dev | 03/2021 - PRESENT
Staff Engineer, Tech Lead, and Mentor working with backend systems and AI integration using Microsoft technologies (Azure, .Net, SQL Server), Go, Node.js, and cloud-native architectures.
Some achievements:
- Migrated legacy applications to microservice solutions with Azure Functions and event-driven patterns in record time;
- Integrated LLM-based APIs (Claude, GPT) with LangChain patterns into product features and development pipelines, accelerating code review, documentation, and implementation;
- AI-augmented development workflows that multiplied team productivity across multiple projects;
- Designed observability and monitoring strategy for distributed microservices;
- Automated API client generation for JavaScript with OpenAPI and DevOps, reducing frontend adoption time;
- Introduced TDD culture from scratch — hundreds of tests covering critical paths, eliminating regressions in production;
- Used Kubernetes/Argo CD with CI/CD pipelines and Terraform to automatically scale dockerized applications;
- Received the R&D Spotlight Award for Q4 2021 at a key player in the hospitality industry;
- Expanding end-to-end test coverage with Cypress using AI-assisted development (Claude/Cursor), accelerating test creation and maintenance across complex user flows;
- Developing AI-assisted legacy displacement skills using the Strangler Fig pattern — leveraging Claude and Cursor to accelerate incremental migration of monolithic modules to modern microservices, with automated tests to keep replacement safe;
- Mentoring developers to increase productivity across multiple clients;
White Fox | 11/2009 - 03/2021
Backend engineer and technical leader for B&T, one of Brazil's most outstanding money exchange brokers. Led architectural evolution from monolith to microservices, financial system integrations, and early AI adoption using agile methodologies (Scrum, TDD, XP).
Some of our team achievements over this decade:
- Maintained and evolved old monoliths, dividing them into microservices communicating through message queues (SQL/Azure ServiceBroker) to achieve scalability from dozens to thousands of requests per minute;
- Integrated with different institutions like Bacen STA (Brazil's Central Bank messaging system), Receita Federal (Brazil's Federal Revenue Service), Brasil Pré-Pagos (Prepaid multi-currency Card);
- Integrated payments and receipts from electronic transfers in Brazil (TED and PIX) and cryptocurrencies (Bitcoin);
- Built Jarvis — an early AI agent using NLU (LUIS) to orchestrate multi-step business processes via natural language, a precursor to modern LLM-based agents;
- Implemented a test culture (TDD) mitigating errors in deployments and eliminating regressions and bugs in production;
- Automated deployments with Azure DevOps and management activities with Microsoft Bot Framework;
- Implemented cross-domain libraries using F# to ensure encapsulation and implement the right DDD abstractions;
- Migrated internal scheduling system to F# and Azure Functions, achieving performance optimization and reducing the cost of maintenance;
- Taking advantage of F# expressiveness and elegance, enhanced the performance and maintainability of complex mathematical calculations;
- Applied machine learning techniques for atypical transaction detection and compliance monitoring;
- Ensured MonoRepos and Modular Monolithic applications work after 20 years, across multiple .Net versions, delivering value and customer happiness;
- Ported ActiveWriter to Visual Studio 2017, 2019, and 2022 so the team can work with a modern setup even in legacy NHibernate applications;
- Since 03/2021, continued as consultant for critical solutions and specifications;
Ecorp | 01/2009 - 11/2009
Senior consultant and developer in Microsoft BizTalk, SharePoint, SQL Server, ASP.NET working directly to customers from Rio de Janeiro (Light and L'Oreal) performing technical management, gathering requirements, application development, and SAP integrations maintenance (XI and PI modules).
Key Achievements:
- Implemented Biztalk integration between oracle problem system with SAP portable mobile gateway. This integration addressed all requests for external support from Light customers in Rio de Janeiro;
- Automated the publishing of Light KPIs from Excel direct into the company's internal Sharepoint.
Oi - Accenture | 11/2007 - 01/2009
Maintenance of CRM System / ERP of the OI Tsunami project (SIA) and EPM (Sharepoint and Microsoft Project) with C# programming (Asp.Net and Desktop) using CCF, SQL Server and WCF; Systems optimizations and database management with Oracle and MS SQL Server. Also gathering requirements, negotiating deadlines, planning projects directly with the customers.
Key Achievements:
- Built M.A.R.T — a decision engine that, using external APIs for phone line quality testing, guided call-center operators through diagnostic workflows to resolve customer issues systematically;
- Improved the performance of the monthly conciliation process of Oi (Batimento) 24x. It used to take up to 12 hours a month to finish and after optimization, it took less than 30 minutes.
Always Web | 06/2006 - 11/2007
Programming in several languages (C#, VB, PHP, Javascript, ASP and even ActionScript) for Web and Desktop, database management (SQL SERVER, MYSQL and Oracle). Also working as a Project Manager and Team Leader creating functional and technical specifications for two teams between Rio de Janeiro and São Paulo. Our principal clients were Aliança do Brasil (Insurance company of Banco do Brasil), Cultura Inglesa (English School) and Thomson Edu.
AG Sistemas | 11/2004 - 06/2006
Web Developer working with PHP and ASP classic, developing and maintaining the Apligraf´s CRM/ERP for StockMarket. For Digipix, We developed their photographic revelation service for companies. This service is still in use in Brazilian e-commerces like B2W (Americanas.com, Submarino, Shoptime), Saraiva, Extra etc.
Building tools and systems beyond day-to-day work — from AI agents and distributed systems to developer community leadership.
Personal | 06/2025 - Active
Technologies: TypeScript, Bun, OpenAI-compatible API, Anthropic/OpenAI/Ollama/DeepSeek
Multi-provider LLM gateway with intelligent routing, prompt caching for cost optimization (~75% token cost reduction), fallback chains to local models, and structured presets for content processing. Handles up to 1M characters per request with vision support and streaming.
Personal | 06/2024 - Active
Technologies: Elixir, Phoenix, Oban, SQLite, faster-whisper, Claude API, MCP
End-to-end data pipeline with 8-stage orchestration: collection → GPU transcription → AI summarization → publishing. Intelligent GPU scheduler with time-based windows, CPU/GPU fallback, and concurrent job limits. MCP server for Claude Code integration.
Personal | 01/2023 - Active
Technologies: WSL, Docker, Ollama, systemd, nginx, Python, Bun
AI development platform running multiple microservices: LLM gateway (Vox-Intelligence), transcription service (Whisper-API with CUDA), notification gateway (GossipGate), health monitoring, and 13+ AI agent skills. Dynamic GPU scheduling across services.
White Fox | 09/2018 - 12/2022
Technologies: AI/NLU, Microsoft Bot Framework, LUIS, Node.js, TypeScript, SQL Server
Early AI agent using Natural Language Understanding (LUIS) to orchestrate multi-step business processes via conversational interface — a precursor to modern LLM-based agents. Jarvis handled scrum master activities, billing, planning, and repetitive tasks through Skype and Microsoft Teams.
His capabilities included search for tasks, projects, registering billing, check team velocity and common repetitive tasks like generate codes and valid documents (CPF/CEPs, CNPJs...);
YouTube | 01/2023 - 05/2025
Technologies: Audio/Video Production, Interviewing, Content Strategy, YouTube
Host and producer of a martial arts podcast featuring in-depth interviews with masters, grandmasters, and practitioners across multiple Kung Fu lineages. 29 episodes across 3 seasons, including interviews in English and Portuguese. Built and managed the full production pipeline: recording, editing, publishing, and audience engagement.
Meetup group | 2016 - 2022
Technologies: Elixir, Phoenix Framework, OTP, Web RTC
Co-organizer of Rio de Janeiro's Elixir meetup — built real-time distributed systems with the community. Led hands-on events including a real-time WebRTC audio/video chat and a multiplayer starship game using OTP supervision trees and Phoenix Channels.
MYVT MI.IM | 11/2018 - Active
Technologies: Node.js, TypeScript, Angular 2+, MS SQL Server
Backend-driven CRM/ERP system with TypeScript (Node.js) handling business logic, multi-branch data synchronization, and real-time updates. Designed for multinational expansion to Angola and Miami.
Grifo Editorial | 06/2019 - 2022
Technologies: Gatsby, React, PWA
Genesys SRD is a Gatsby PWA with some customizations for the publisher. They need an offline reference guide for their players. It uses a Vercel (now.js) integration to automatize its own publication. The best ideas are the simplest ones.
.TV | 11/2006 - 01/2015
Technologies: Ruby on Rails, AngularJs, Bootstrap, PostgreSql
Web channel system. It used a Ruby on Rails application to upload, orchestrate, and encode videos in different formats for the web. The idea was to explore specific niches while granting fully control of content and audience. By the time they started YouTube was not lucrative and It was before his acquisition by google. They discontinued their principal project (Psicologica.TV - a psychology channel), after the YouTube/Facebook expansion. However, Yehudim.TV (a Jewish channel) still working and they sold ITVision.TV (an IT corporate channel – that now has a more modern version).
