AI Engineer & Full-Stack Developer | FastAPI · Python · LLM Integration · Claude Code · Gemini · React Native

I'm James Carl Villarosa, a Computer Science graduate of the University of the Philippines Los Baños (July 2026, GWA 1.64, consistent Dean's Lister), with hands-on experience building and shipping AI-powered systems end to end.

I have professional experience at Ten X Development Corporation, a Japanese-based software company, where I worked as a software engineer and team lead, managing Agile sprint cycles, client deliverables, and AI pipeline integrations across multiple workstreams.

What I built:
1. AI-integrated backends using FastAPI + Python, deployed to production with Docker and NGINX
2. LLM-powered features using Gemini, Claude (Opus/Sonnet), GPT-4, and Groq Whisper, including RAG pipelines, prompt engineering, and multimodal AI
3. Full-stack apps with React, React Native/Expo, and REST APIs
4. Automation and AI workflows using Claude Code, MCP servers, Zapier, and exploring n8n, Manus, NotebookLM, and OpenClaw

My thesis project, Ano-Kamo, is a multimodal AI translation system for Filipino languages, covering text, voice (Whisper STR), OCR, and conversation history, achieving a SUS score of 84+/100 across 20 users. Built with FastAPI, Gemini 2.5 Flash, Azure TTS, and React Native.

I'm a strong fit for AI engineer, backend, full-stack, and vibe coding roles. I work well remotely, communicate clearly with non-technical stakeholders, and ship fast.

Computer Engineering Graduate | Full-Stack Developer | AI & IoT Enthusiast | Building AI-powered applications and voice agents. Interested in AI, automation, software engineering, and IoT solutions.

I code and develop with love while having strict judgement over my work.

I've been into computers since I was a kid, this is my passion, not just a career. I work full-stack, building landing pages, dashboards, and headless CMS projects that work well end to end. React and FastAPI are what I work with daily. I keep my code clean, my structure solid, and my solutions simple

Full Stack Developer with a strong technical background and creative mindset for building efficient digital solutions. I help brands, startups, and businesses turn ideas into scalable web applications, internal tools, and user-focused platforms that perform reliably and communicate clearly.

Skilled in frontend and backend development using technologies such as Java, C#, Python, JavaScript, and modern web frameworks. Experienced in building responsive interfaces, developing APIs, managing databases, improving workflows, and delivering projects on time with clean, maintainable code.

My background in both development and digital content gives me an edge in understanding SaaS products, online businesses, automation tools, tutorials, and platforms designed for growth. Reliable, fast-learning, and easy to work with in remote team environments.

Hey! I'm a full-stack developer who loves building clean, fast, and functional web apps from front to back. I work with React and TypeScript to craft smooth, responsive interfaces, style them with Tailwind CSS, and power the backend with FastAPI and SQL.

Whether you need a brand new web app built from scratch, an existing project cleaned up, or a backend API that actually works the way it should — I've got you covered. I take pride in writing code that's easy to maintain and delivering work that makes sense to the people using it.
I'm reliable, easy to communicate with, and I take deadlines seriously. If you're looking for someone who can handle both the front-end and back-end without you needing to hire two people, let's work together!

Full-Stack Developer & LLM/AI Developer with a knack for building AI-powered, scalable web apps. I work with Django, React, Next.js, and Flutter to deliver fast, user-friendly, end-to-end solutions. Experienced in RAG, LLM integrations, and production-ready AI pipelines using vector databases like Chroma, Pinecone, and Qdrant, and leveraging frameworks such as LangChain, LangGraph, and LangSmith to turn complex ideas into working software that actually solves problems.

Backend-focused Full-Stack Developer with hands-on experience building web applications, backend systems, APIs, admin dashboards, and database-driven business tools.

I work on both frontend and backend development using technologies like React, Node.js, FastAPI, PostgreSQL, Prisma, and Supabase. My experience includes authentication systems, REST APIs, role-based workflows, debugging, feature implementation, and improving existing applications.

I am comfortable working on both new builds and existing codebases. I care about writing clean, maintainable code, solving real business problems, and delivering reliable work in a remote team environment.

If you need a developer who can support frontend and backend tasks, fix issues, build features, and contribute to reliable web applications, I would be glad to help.