FULL-STACK TYPESCRIPT DEVELOPER

I build complete web systems — from concept to deployment.

About Me

I'm a full-stack TypeScript developer based in Tampa, FL. I don't just build websites, I build the infrastructure behind your business. Military veteran (Army Reserve, 8 years) turned entrepreneur. That means I show up, follow through, and care about outcomes, not just deliverables.I've shipped marketplace platforms, AI-powered apps with subscription billing, construction management SaaS, and event POS systems running live at music festivals. Whatever your business needs to operate at scale, I can build it. My edge: I understand both the architecture and the business goal. That's why clients don't just get a developer, they get a technical partner.

Technical Stack
  • Languages: TypeScript, JavaScript, HTML/CSS
  • Frontend: React, Next.js, Vite, Tailwind CSS, Framer Motion
  • Backend: Node.js, Express, PostgreSQL, Supabase, Hasura
  • Integrations: Stripe, Mailchimp, AWS (SES, SNS), OpenAI API
  • Tools: Git, Vercel, Google Apps Script, React Hook Form, Zod
What I Build
  • Full-stack web applications with authentication and payment processing
  • Multi-role dashboards and admin systems with row-level security
  • API integrations and automated workflow systems
  • Conversion funnels with email sequences and booking integrations
  • Production SaaS products deployed on Vercel
  • Full Stack Developer - Multiple Clients
    2023 - Current
    Built marketplace platforms, SaaS applications, AI integrations, and automated systems using React, TypeScript, Next.js, and Supabase.
  • React Developer & Technical Support - Ronin POS
    2024 - Current
    Feature development and on-site technical support for event management POS platform serving live music festivals.
  • WordPress Developer - Freelance
    2017 - Current
    Client site maintenance, custom integrations, and hosting management. Optimized pricing from $50 to $150/month.

Work That Ships

Every project below is live, built for real clients with real users. Not mockups.

Design Development Freelancer Marketing

Justin Lite – Conversion Landing Page

Design Development Freelancer

Justin Lite – AI Journaling SaaS App

App Development Design Development Freelancer

VXO AI – Creator Marketplace Platform

Design Development Marketing

JL Detailing

Design Development Marketing

Amir Houses

Design Development Marketing

SLlama Productions

Design Development Freelancer

Amir Land Pro

Design Freelancer

CRTVHouse Productions

Design Development Marketing

Self Revolutions

Latest News

The Latest News section offers up-to-date information and insights, keeping visitors informed about relevant developments in the field of web development.

Let's Build Something

Available for contract work and full-time roles. If you have a project in mind, reach out — I respond fast. (518) 384-9845 · contact@justinrivera.tech

    Photo of Justin putting his hand on his chin.