I build web applications, integrations, and AI automation that turn business needs into reliable software.
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Product · AI
An independent English-learning platform with exercises and AI-assisted conversation. Voice is disabled in the public deployment to avoid API costs; the remaining flows are available to explore.
Investment Intelligence
A tool to visualize a portfolio, track allocation by asset class, and set targets, with complementary valuation and fixed-income analysis.
Service Booking
An immersive way to explore services and book without messaging back and forth. The flow simulates service, professional, date, and confirmation.
Dining Experience
A seasonal menu treated as editorial content, with a featured-dish sheet, allergen guidance, and simulated booking across available dates and times.
B2B Legal Intake
A clearer entry point for business matters: practices, approach, and guided intake organize context without requesting sensitive documents.
Property Search
The search starts with neighborhood, property type, and budget, then continues through working filters, detail dialogs, and a simulated viewing request.
Editorial Portfolio
A digital identity for a fictional author, with a portrait, original cover artwork, a catalog of works, and a literary excerpt inside a dialog.
Swipe to explore
Product · AI
An independent English-learning platform with exercises and AI-assisted conversation. Voice is disabled in the public deployment to avoid API costs; the remaining flows are available to explore.
Investment Intelligence
A tool to visualize a portfolio, track allocation by asset class, and set targets, with complementary valuation and fixed-income analysis.
Service Booking
An immersive way to explore services and book without messaging back and forth. The flow simulates service, professional, date, and confirmation.
Dining Experience
A seasonal menu treated as editorial content, with a featured-dish sheet, allergen guidance, and simulated booking across available dates and times.
B2B Legal Intake
A clearer entry point for business matters: practices, approach, and guided intake organize context without requesting sensitive documents.
Property Search
The search starts with neighborhood, property type, and budget, then continues through working filters, detail dialogs, and a simulated viewing request.
Editorial Portfolio
A digital identity for a fictional author, with a portrait, original cover artwork, a catalog of works, and a literary excerpt inside a dialog.
Scroll to explore
01 / 07I take freelance projects from idea to deployment, with clear scope, direct communication, and a solution shaped around real business needs.
Responsive, fast, and accessible business websites, landing pages, and portfolios, with polished execution and attention to conversion.
Scheduling flows, client areas, internal dashboards, and other tools shaped around how the business actually operates.
Connections between platforms, external services, and data, with clear contracts, resilient workflows, and proper failure handling.
Task automation, assistants, and reports where AI creates practical value while keeping control and traceability in the workflow.
Technologies I use to deliver
and whatever the project needs
08/2025 — Present
2023 — 2025
2022 — 2023
I'm Guilherme Nicolaci, a full-stack software engineer based in Brazil and working remotely with a US team. I'm currently part of Automate Army (Colorado, USA), where I build applications, complex integrations, and end-to-end automations.
Alongside my primary role, I build independent projects and tailored solutions. My approach combines product thinking with practical engineering, focused on building software that solves real problems and remains easy to maintain.
Clear APIs, well-defined components, and technical decisions that reduce the cost of change.
Repetitive tasks become software when doing so reduces errors, saves time, and improves the workflow.
Testing, observability, and reliability are part of delivery, not an afterthought.
I'm open to freelance projects, collaborations, and professional conversations. Share some context through the form or by email.
