Hi, I'm Gelo.
Senior Software Engineer & AI Solutions Builder
I build full-stack web apps, mobile experiences, and AI-powered tools that ship fast and scale well.
Turning complex
problems into
elegant software.
I'm Gelo — a Senior Software Engineer and solo founder based in the Philippines. I specialize in building production-grade full-stack web applications, React Native mobile apps, and AI/LLM-integrated SaaS products.
With deep expertise in TypeScript, React, PostgreSQL, and modern AI tooling, I help startups and businesses go from idea to launched product — fast. I've shipped SaaS platforms, built mobile apps, and integrated cutting-edge LLM pipelines into real-world products.
The right tool for the right problem.
I adapt to what your project needs — here's what I reach for most often.
Not married to any single stack — if there's a better tool for your project, I'll use it. What matters is shipping something great.
What I build for you.
End-to-end software development, from idea to deployed product.
Full-Stack Web Apps
Scalable, fast, and modern web applications built with React, TypeScript, and PostgreSQL. From MVPs to production SaaS.
Mobile Apps
Cross-platform iOS & Android apps with React Native. Native feel, shared codebase, and smooth UX baked in.
AI / LLM Integration
Integrate GPT-4, Claude, Gemini and other LLMs into your product. RAG pipelines, agents, prompt engineering, and more.
SaaS MVP Development
Launch your SaaS fast. Auth, billing, dashboards, and core features — built right and ready to scale from day one.
Things I've shipped.
A selection of real-world projects built for real users.
AI Document Processing Pipeline
Built an AI-powered document processing system using GPT-4o agents with automated extraction, classification, and structured output. Handles high-throughput workloads with queue-based orchestration.
Full-Stack SaaS Platform
Production SaaS application with auth, dashboards, and background job processing. Built end-to-end with a modern React framework, TypeScript, and a robust data layer.
React Native Mobile App
Cross-platform mobile application with smooth animations, offline support, and a polished UX — built with React Native and TypeScript.
Let's build
something great.
Whether you have a project in mind or just want to chat — I'm always open to new work.
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