Senior Software Engineer · Backend, Systems & AI
I have 20+ years of experience designing and delivering business-critical software. My recent work focuses on multi-tenant SaaS platforms, data-heavy backend systems, operational automation, and AI-assisted software engineering.
Based in Brazil, working remote-first.
Most of the systems I build professionally are private, including:
- A multi-tenant B2B SaaS platform for finance, tax, audit, and compliance workflows, used by 70+ clients in production.
- A retail integration platform that synchronizes ERP product catalogs, pricing, and sales with autonomous convenience-store systems.
- An operational data platform that ingests and normalizes information from multiple retail systems for reporting and decision-making.
- AI workflows for transcription, content analysis, media processing, and business automation.
- Custom AI agents and MCP servers for software engineering, domain analysis, and access to business systems.
Across these systems, I work end-to-end: domain discovery, architecture, PostgreSQL data modeling, APIs, full-stack delivery, CI/CD, cloud infrastructure, observability, and production support.
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Roundfix — A local-first Go CLI for structured AI-assisted engineering workflows with Codex, Claude, and OpenCode, connecting PR feedback loops, deterministic verification, worktrees, and safe commit boundaries.
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Agent Skills — A collection of reusable skills for Claude Code and compatible coding agents, covering discovery, planning, technical design, implementation, review, QA, delivery, and release workflows.
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OnionCry — A Rust CLI that detects architectural boundary violations in JavaScript and TypeScript projects, with human-readable, JSON, SARIF, and LLM-friendly output.
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Barrel Craft — A TypeScript CLI for generating clean and consistent barrel files in TypeScript and React projects.
These repositories remain public as part of the evolution of my AI-assisted engineering workflows and developer tooling.
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Fixarc — An MCP server and full-stack web application for synchronizing GitHub pull request review threads and helping AI agents inspect, fix, and update review issues.
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Claude Code Framework — My first published Claude Code setup, combining specialized agents, slash commands, engineering rules, templates, and MCP integrations for structured software delivery.
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Claude Craftkit — The second iteration of my Claude Code tooling: a plugin and skill marketplace for databases, UI development, architecture, testing, Git workflows, and code review.
Languages, frameworks, and infrastructure
TypeScript · Node.js · Bun · React · PostgreSQL · Drizzle ORM · AWS Lambda · Docker · Terraform · GitHub Actions
Architecture, engineering, and AI
Clean Architecture · DDD · TDD · Multi-tenancy · APIs · SQL tuning · AI Agents · MCP · Claude Code · Codex · Cursor
- Understand the business problem before choosing the architecture.
- Prefer simple, explicit, and maintainable designs.
- Use AI to accelerate engineering without delegating responsibility.
- Keep deterministic verification outside the agent decision loop.
- Treat testing, observability, and auditability as product requirements.
- Own delivery end-to-end, from domain discovery to production support.