Technical SEO Engineer
ChoziCosta Rica
Sep 2026 – Now
Owning technical SEO for a Spanish-first real-estate platform, and building the server-rendered, bilingual Next.js pages that search engines index
Google Search ConsoleScreaming FrogAhrefs
Xein Deniel
PhilippinesDesigning interfaces that feel effortless
About
I'm a full-stack engineer specializing in UI craft, motion, and microinteractions. Currently working at Pioneer.
I enjoy using open‑source tools and experiment with custom configs and self‑hosted environments to improve my developer workflow.
Experience
Full-Stack Engineer
Pioneer Dev AIBoulder, Colorado
Dec 2025 – Now
Owning frontend infrastructure for an operator management system, and building the data-intensive React and Remix interfaces that run on it
TypeScriptReactAstroPrisma
ShowHide earlier roles (2)
Full-Stack Developer – Intern
ChatGeniePasig City, Metro Manila
Aug 2025 – Sep 2025
Trained in advanced Gen AI prompting techniques including chain-of-thought and multi-agent systems, and explored Azure AI services for model deployment
Ruby on RailsVue.jsGraphQL
Developer – Intern
Creative Dynamix, Inc.Pasig City, Metro Manila
Aug 2024 – Sep 2024
Worked as an Intern, developing and maintaining finance modules in Microsoft Dynamics 365 using X++, resolving bugs and optimizing workflows
Microsoft Dynamics 365X++
Recognitions
Jul 18, 2026
Anthropic
Claude for Open Source
Claude Max 20x, free for six months, for maintainers and contributors keeping the open-source ecosystem running. Accepted on vallow.nvim.
Jun–Dec 2026
Data Engineering Pilipinas
DEP Engineering Program
A six-month build sprint where selected builders ship a public GitHub project, a real data pipeline, and a deployable dashboard.
Oct 16, 2026
XERJ
Corpus Hub
XERJ is a search engine for AI agents, one Rust binary that runs locally. vallow.nvim sits in its Corpus Hub, open code agents can search.