FREELANCE WEB DEVELOPER

Hello, I’m Justin Welcome to my Website.

About Me

I'm a full stack TypeScript developer who builds complete systems from concept to deployment. Military veteran (Army Reserve, 8 years) turned entrepreneur running multiple businesses while maintaining a disciplined approach to solving technical problems.

I don't just write features—I ship entire platforms. Marketplace systems with role-based permissions, AI-powered applications with subscription billing, construction management SaaS, automated lead generation funnels, and event POS systems that handle live operations.

My advantage: I understand both the technical architecture and the business outcomes. I've deployed code at 2am during live music festivals, optimized bundle sizes to save costs, built authentication flows that actually work, and automated workflows that eliminate repetitive work.

Based in Tampa, Florida. Available for remote contract or full-time work.

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.

My Latest Project

The project section showcases a diverse portfolio of completed works, providing a comprehensive overview of successfully executed web development projects.

App Development Design Development Freelancer

VXOAI

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.

Appoint Me

I am available for freelance work. Connect with me via phone: (518) 384-9845 or email: contact@justinrivera.tech

    Photo of Justin putting his hand on his chin.