Professional Experience

My own company, opened in October 2021, and the contracting vehicle for the engagements with FCamara/Infracommerce, Atlas Technologies, AI Solutions, RequestIT/PDTEC, and Fabritech. Since August 2026 the focus has been applied-AI R&D and building my own products.

• Built an on-premises multi-agent platform that I use daily: 28 specialized agents, semantic memory with RAG (PostgreSQL/pgvector and reranking), routing between a local LLM (Ollama) and cloud escalation when the local model falls short, MCP servers, and a bilingual desktop HUD in React 19/Tauri 2.
• Built a multi-tenant SaaS that tailors résumés to job postings, in FastAPI, SQLAlchemy 2, and PostgreSQL with per-tenant row-level security, Firebase/JWKS authentication, job ingestion over public APIs, and a validation layer that stops the model from inventing experience the candidate does not have.

Built mission-critical platforms for electronic real-estate registry and automotive data lookups, spanning APIs, government integrations, authentication, payments, and digital signatures.

• Developed modules of a multi-tenant SaaS platform for electronic real-estate registry, with FastAPI, SQLAlchemy 2, PostgreSQL 17, Kafka (13 workers), and Celery across 42 modules and 97 migrations, serving 6 role-based portals.
• Built a multi-tenant SOAP integration gateway with ONR (Brazil's national registry operator), using schema-per-tenant PostgreSQL, a Redis token pool, Celery workers on AWS ECS Fargate, and Fernet-encrypted per-tenant credentials — reaching 80% test coverage.
• Architected a multi-provider digital signature orchestrator (Lacuna Web PKI/PAdES, IntegraICP ICP-Brasil, IdRC) with provider-based routing, 6 Celery queues, an immutable audit trail, SSRF protection, and HMAC-SHA256 webhooks.
• Delivered an e-commerce platform for vehicle and driver data lookups, with Angular 20, Node.js/Express, PostgreSQL 17, dual-token authentication, HttpOnly/Secure cookies, a secure external-API proxy, HMAC webhooks, and real-time payment status via SSE.
• Ensured LGPD compliance (soft-delete and audit logging), observability with New Relic and Rollbar, and production-grade non-functional requirements (99.9% uptime, p95 < 200ms).

Developed and maintained digital platforms and corporate integrations, with a focus on security, scalability, and cross-system communication.

• Led fullstack development of GoInsiders — a creator and affiliate platform with NestJS, Prisma, PostgreSQL, React, AWS S3, and Caddy — including Instagram/TikTok publishing, KYC validation, a digital wallet, performance reporting, and payments.
• Built backend APIs and services with Python/Django/DRF, FastAPI, and Node.js/NestJS, integrated through webhooks and messaging, backed by PostgreSQL and Redis.
• Contributed to architecture decisions for critical modules: authentication, auditing, idempotency, and technical compliance.

Developed government projects and corporate systems, with a focus on search, integrations, and performance under high demand.

• Delivered government projects and corporate systems using Laravel 8/9/10, PostgreSQL, Vue.js/Nuxt.js, Docker, and CI/CD pipelines.
• Built APIs, Elasticsearch-based search, and third-party integrations.
• Improved performance and reliability in high-demand production environments.

Maintained and evolved legacy backend systems, with a focus on stability and reliability.

• Maintained and evolved legacy systems built with Laravel, MySQL, and Redis.
• Focused on stability, performance, and API reliability across production workloads.

Built backend APIs for large retail and e-commerce operations, contributing to an event-driven architecture.

• Built robust APIs in Laravel 8, contributing to an event-driven architecture.
• Focused on scalability, operational security, and protection of core business processes.

Led development from the company's early startup phase, guiding the team and shaping technical and product decisions.

• Led the development team from the startup's early stages, distributing tasks, reviewing code, and guiding technical and product decisions.
• Continuously delivered web features, APIs, and structural improvements, with a focus on sustainable product evolution.

Built web solutions and APIs with a proprietary framework, with a focus on security and maintainability.

• Built web solutions and APIs using a proprietary framework.
• Worked with Git/SVN and practices focused on security and long-term maintenance.

Delivered web projects across multiple PHP frameworks and CMS platforms.

• Developed web projects using CakePHP, CodeIgniter, WordPress, and Drupal.
• Built structured PHP applications following an MVC architecture.

Maintained and built websites, e-commerces, and intranet systems for agency clients.

• Maintained and built sites, e-commerces, intranets, and web systems using PHP, MySQL, HTML, CSS, and JavaScript.

Began my career transforming static sites into dynamic systems and building custom CMS solutions.

• Transformed static sites into dynamic systems using PHP and MySQL.
• Built a custom CMS to support client content management needs.