A selection of products and systems I’ve worked on across frontend architecture, product engineering, open source, and end-to-end delivery.
The production code behind some of these projects is proprietary. These project summaries focus on the context, responsibilities, engineering challenges, and outcomes that can be shared publicly. Open-source work links directly to its public implementation and review history.
| Project | Scope | Selected evidence |
|---|---|---|
| Sherlock AI | Frontend ownership and full-stack AI workflows | Next.js, TypeScript, Node.js, model integration, prompting, benchmarking |
| Excalidraw | Eight merged open-source contributions | Canvas geometry, coordinate systems, interaction design, testing |
| Templafy Platform | Frontend platform and design-system foundations | Shared infrastructure used by more than 50 engineers |
| Rent-a-car digital kiosk | Lead development from requirements to production | React, API integration, AWS, Docker |
More detail, screenshots, and work history are available at joaoforja.com.
- Turning technically dense workflows into understandable product experiences
- Building frontend foundations that improve reliability across teams
- Treating accessibility, testing, and maintainability as design constraints
- Working across product, design, frontend, backend, and delivery boundaries