Juan Esteban Diaz
@juanestebandiaz
Front-end Developer at Thitix TX building production React applications, including a property management ERP for 53 rental units.
GuatemalaWhat I'm looking for
At Thitix TX, I build and maintain production React, Next.js, and TypeScript interfaces for real clients, from requirements and UI through API integration, deployment, and maintenance. I shipped a property management ERP for a client with 53 rental units, with dashboards, role-based views, automated reporting, and push notifications.
I also built and deployed a Facebook Messenger lead-qualification chatbot for Carro Fácil US using the Meta Graph API and Anthropic Claude API. At a five-day Colsubsidio and 30X hackathon, I owned the front end and UI/UX for GarantIA, which won first place among 850+ participants. I’m now looking for a Front-end Developer React.js role on a fast-moving remote startup team building an enterprise platform.
Experience
Work history, roles, and key accomplishments
Frontend / Full Stack Developer & Founder
Thitix TX
Jan 2026 - Present (9 months)
Build and maintain production React, Next.js and TypeScript interfaces for real clients end to end, including requirements, UI, REST API integration, deployment and maintenance. Shipped a property management ERP for 53 rental units and delivered MVPs for additional clients.
Customer Service Representative
Various US Accounts
Provided customer service for US accounts including Airbnb, Nintendo, UnitedHealthcare and ADP/Wisely payroll cards, resolving customer issues under service-level targets in a full-time English-speaking environment.
Co-founder and Operator
IceFlakes
Co-founded and ran a dessert brand, owning operations, client relationships and team coordination.
Co-founder and Operator
Heavy-Haul Transport Operation
Co-founded and ran a heavy-haul transport operation with 8 trucks, owning operations, client relationships and team coordination.
Co-founder and Operator
InStyle Studio
Co-founded and ran a beauty studio, owning operations, client relationships and team coordination.
Education
Degrees, certifications, and relevant coursework
Codecademy
Certificate, TypeScript
2026 -
Completed the fundamentals of TypeScript and is currently studying advanced topics including functions, complex types, union types, type narrowing, and object types.
Anthropic Academy
Certificate, Artificial Intelligence
Completed courses on Claude 101, Claude Code 101, and Claude Code in Action.
Codecademy
Track Completion, Front-End Engineering
2024 - 2025
Completed the Front-End Engineer track covering HTML5, CSS3, JavaScript, React, Redux, Git & GitHub.
30X
Certificate of Completion, Artificial Intelligence
Completed 28 hours of intensive training in AI for Developers, awarded as first prize at the Colsubsidio × 30X hackathon.
Tech stack
Software and tools used professionally
Availability
Location
GuatemalaAuthorized to work in
Salary expectations
Social media
Job categories
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