$ whoami —
Kier is a full stack developer based in Cebu, Philippines, building fast, accessible web products end-to-end — from typed APIs and Postgres schemas to the last pixel of the interface.
Six builds across the stack — from typed component systems to realtime infrastructure. Each one ran in production.
A headless React component system with zero-runtime theming.
A fully typed, accessible component library shipping 38 primitives. Built on Radix internals with a variant engine compiled at build time — no runtime style objects, no class collisions. Docs site renders live, editable examples on the server.
A typed pipeline orchestrator with live build logs.
A CI/CD platform that models pipelines as a strongly-typed DAG. Streams build logs over WebSockets, caches layers by content hash, and ships preview deployments on every push. Reduced median build time by 41% across the teams that adopted it.
Sub-second product analytics over a columnar store.
A self-hostable analytics engine ingesting 12k events/sec. Writes to a columnar store with a custom rollup layer so dashboards answer over arbitrary time windows in under 50ms. The query layer is written in Go and exposed through a typed tRPC API.
Realtime collaborative editor with conflict-free merges.
A collaborative document editor built on a CRDT. Presence cursors, comments, and suggestions sync with under 80ms p99 latency. Offline edits queue and merge deterministically on reconnect — no lost work, ever.
A visualizer for tangled Git histories.
An interactive force-directed graph for exploring repository history — branches, merges, and rewrites rendered as an animated commit topology. Click a node to jump to the diff. Used internally to sanity-check rebases before they land on main.
A keyboard-first kanban for engineering teams.
A project board built around keyboard navigation and command-palette UX. Drag with the pointer or fly between cards with HJKL. State persists offline-first and syncs via a typed push-based API. Accessible to the last focus ring.
I build fast, accessible web products end-to-end — from typed APIs and Postgres schemas to the last pixel of the interface. Most at home in the TypeScript + React + Node stack, but I like picking up whatever tool makes the product better.
Six years shipping production software for startups and open-source. I care about performance budgets, motion that earns its keep, and code that the next engineer can actually read.
$ cat now.txt
location → Cebu, Philippines
role → Full Stack Developer
focus → realtime + DX tooling
learning → Go · distributed systems
status → Available for work & freelance
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Years coding
Projects shipped
Open-source repos
Cups of coffee / day
Based in Cebu, Philippines · UTC+8
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