Joshua Dela Cruz

Software x AI Engineer

I build React and Next.js products, and I’m focused on applying that software engineering foundation to useful AI experiences.

View work Contact on LinkedIn

Selected work

Product interfaces, API integrations, and real-time applications.

Chatio conversation interface with a message list and a live chat thread

Chatio

Real-time messaging

A real-time chat application built with Next.js and Pusher. Conversations, messages, and authentication brought together in one interface.

  • Next Js
  • Typescript
  • Pusher
  • Prisma
  • Next-Auth
  • Tailwind CSS
Live demoSource on GitHub
Jobseek application showing job listings and job search tools

Jobseek

Job search & applications

A job platform for finding opportunities, posting roles, and submitting applications. Built with Next.js, Prisma, and Shadcn UI.

  • Next Js
  • Typescript
  • Shadcn UI
  • Prisma
  • Next-Auth
  • Tailwind CSS
Live demoSource on GitHub
WiseBites dashboard for tracking daily calories against a target

WiseBites

Daily calorie tracking

A calorie tracker that puts daily intake alongside a personal target. Built to make logging food and following a daily total straightforward.

  • Next Js
  • Typescript
  • Shadcn UI
  • Prisma
  • Next-Auth
  • Tailwind CSS
Live demoSource on GitHub
More projects (6)
SecuKey Vault interface for storing digital secrets

SecuKey Vault

A personal web app for storing passwords and secret phrases, built with Next.js, Prisma, and NextAuth.

Live demoSource on GitHub
Loopstudios virtual reality studio landing page

Loops Studios Landing Page

A Frontend Mentor challenge translating a supplied design into a responsive landing page with HTML, CSS, and JavaScript.

Live demoSource on GitHub
Chirp landing page for a social media analytics product

Chirp Landing Page

A Codewell challenge implementing a supplied landing page design with HTML, CSS, JavaScript, and scroll animations.

Live demoSource on GitHub
Blogr publishing platform landing page

Blogr Landing Page

A responsive implementation of a Frontend Mentor design, built with HTML, CSS, and JavaScript.

Live demoSource on GitHub
Sunnyside creative agency landing page

SunnySide Landing Page

A Frontend Mentor design challenge exploring responsive layouts and scroll animations with HTML, CSS, and JavaScript.

Live demoSource on GitHub
Movie Matters interface for discovering movies and watching trailers

Movie Matters

A movie discovery app with trailer playback, built to practice Next.js, Chakra UI, and external API integration.

Live demoSource on GitHub

Experience

Experience across interfaces, integrations, performance, and quality. Now bringing that foundation to AI engineering.

Freelance

Dec 2024 – Present

Frontend Developer

  • Tested web applications end to end with Cypress and audited performance with Lighthouse and PageSpeed Insights.
  • Improved security with Content Security Policy and search visibility with semantic HTML and metadata.
  • Reduced unnecessary re-renders in real-time charts.

Questronix Corporation

Feb 2024 – Jan 2025

Frontend Developer

  • Led frontend development and migrated legacy JavaScript apps to React, TypeScript, Radix UI, and Tailwind CSS.
  • Applied code splitting and optimistic updates to improve performance and user experience.
  • Maintained legacy dependencies and improved SEO through server-side rendering and metadata.

Kabootek PH

Sep 2022 – Jan 2024

Frontend Developer

  • Led frontend development for client projects and internal startup initiatives.
  • Integrated APIs with RTK Query, React Query, and Axios; investigated crashes, slow loads, and unnecessary re-renders.
  • Worked with designers and backend developers on implementation feasibility, integration, and client requirements.

Kabootek PH

Apr 2022 – Jul 2022

Frontend Developer Intern

  • Translated designs into responsive, interactive interfaces and gained hands-on API integration experience.
  • Practiced Agile development and collaboration using Git, GitHub, and Bitbucket.
Joshua Dela Cruz sitting in a café

About me

I’m a software engineer focused on AI product work.

I build product applications with React, Next.js, and TypeScript. My experience spans real-time messaging, job workflows, API integration, and modernizing web applications.

I’m extending that foundation into AI engineering: finding useful roles for model capabilities and building the product software around them. I care about clear workflows, performance, and reliability.

What I bring

Product engineering
Responsive React and Next.js interfaces, TypeScript, and migrations from vanilla JavaScript.
AI engineering focus
Applying a software engineering foundation to useful AI product experiences and model-backed workflows.
Performance
Code splitting, optimistic updates, and reducing unnecessary renders in real-time charts.
Testing & reliability
End-to-end testing with Cypress, Lighthouse audits, semantic HTML, and search metadata.

Let’s build
something.

Hiring for software or AI engineering, or planning a web project? Tell me what you’re working on.

Contact on LinkedIn