Case Studies: Real Results from Web & AI Projects
Every project includes the problem, the approach, and the measurable outcome. I work across web apps, marketing sites, and AI tooling — shipping fast and making a real difference to the business.
Web Applications
Custom apps built for startups and scaling teams.
Four systems, one source of truth: HubSpot visibility for one of Brazil's largest vet networks
Built a custom integration layer for Reevia that connects four source systems into HubSpot for one of Brazil's largest veterinary companies. Over 2 million records processed with full normalization. Any lead from any system is inside HubSpot in under 50 seconds, standardized and ready to use.
For the first time, our teams all work from the same data. The integration runs silently in the background and just works.— Reevia
A custom CRM that turned Google Maps into a lead machine
Built a purpose-built CRM for a digital agency that captures leads from Google Maps, reaches them via official WhatsApp (Twilio + Meta API), and uses AI to suggest replies and standardize templates. The system scaled the lead base by over 500%, with 250 new leads entering the pipeline every day.
1,500 leads a day. We could never do that manually.— Norte Web Digital
Built and shipped an investor-ready MVP from scratch
GigEasy — backed by Barclays · Bain Capital · Zean Capital Partners
Built the entire technological base and delivered MVP in just 3 weeks, enabling a successful rapid launch and investor demo.
He builds quickly, but he also builds efficiently.— Gabriel Edlin, Ops/Strategy, GigEasy
Rescued a slow API that was blocking user growth
Cuez by Tinkerlist — backed by Tinkerlist group (Belgium)
Cuez is a live broadcast production tool used by TV teams on air across Europe. I inherited a backend API averaging 3 seconds per response and cut it to 300ms, while reducing infrastructure costs by 40% and leaving the system stable under real production load.
Always with many ideas to add and open to discuss the best approach to create the most scalable software as possible.— Rafael Camillo, Senior Software Engineer, Cuez by Tinkerlist
Unified payment orchestration across Asia and Europe
bolttech — backed by Tokio Marine · MetLife Next Gen Ventures
Delivered the payment orchestration platform at bolttech, a $1B+ unicorn, with 40+ integrations across multiple regions.
A results-oriented professional.— Jhonatan Amorim, Engineering Manager, bolttech
Rebuilt a real estate portal at a fraction of the cost
Rebuilt Imóveis SC's real estate portal as ImoHub — a faster, more scalable successor — handling 120k+ properties with sub-second search and drastically reduced AWS costs.
Websites
Professional sites designed for business results.
Turned a digital agency's website into its best sales tool
Built a conversion-first website for a digital marketing agency. Brand-aligned, loaded with nine live demo sites, and structured to answer every buyer objection before the first call.
The website started closing clients before I even picked up the phone.— Norte Web Digital
Turned a B2B manufacturer into a digital showroom
Designed and developed a high-performance institutional website to showcase packaging solutions and generate qualified leads.
AI & Performance
AI tools and performance optimizations that deliver measurable ROI.
An AI knowledge base your whole team uses via MCP
A personal library for Skills, Agents, and Rules — built once, used across Claude, Cursor, and any MCP-compatible AI tool. Save your best workflows once. Run them anywhere.
Save a skill once. Run it in Claude, Cursor, or anything that speaks MCP.— Adriano Junior, Founder
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