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Selected Works
“We shape our tools and thereafter our tools shape us.”
EdTech · Language learningOpen source
Inkah
CEO & Co-founder · 2021 — 2023
A pop-up dictionary that turned Netflix, YouTube and the open web into Korean and Chinese practice.
- 10,000 weekly active learners across iOS, Android, Chrome & Firefox
- Raised $240K · team of 10 across four countries
- The extension outlived the company — now open source
Healthcare AIActive
Clearpol
Chief Architect · 2024 — present
Turning state and federal healthcare regulation into something an EHR pipeline can actually act on.
- 0 to $1.2M ARR on the first monetizable enterprise product
- SOC 2 Type I and Type II, SOC 3, and HIPAA certified; migrated to Azure
- ETL for terabytes of daily EHR data
Real estate · MarketplaceAcquired
99.co
CTO & Co-founder · 2013 — 2019
The #1 property portal in Indonesia and #2 in Southeast Asia, backed by Sequoia and Eduardo Saverin.
- $150M valuation · 0 to $6M ARR
- Built product, engineering and data science from 0 to 60 staff
- Singapore and Indonesia, in parallel
Logistics · YC W24Active
Conduit
Fractional CTO · 2023 — 2024
Rebuilt the Svelte frontend and migrated the Django backend for a Y Combinator logistics startup.
- Helped drive ARR to $300K
- Svelte rebuild · Django migration
AI writing toolsActive
EditGPT
Architect · 2023 — 2024
Proofreading and editing inside the browser, back when that still needed building from scratch.
- Architected with Tiptap and Supabase
- Drove it to $300K ARR
Agent infrastructureActive
Inkwell
Building · 2026 — present
Persistent identity, memory and coordination for AI agents — so they arrive as someone, not something.
- Constitution, memory and session state that survive the context window
- MCP-native · shared across Claude, Gemini and GPT