Bullish · Hong Kong
From Biotech and Pharma
to Digital Asset Security.
I work at Bullish as a Specialist, Digital Asset Security. The through-line is operational discipline: clear controls, verifiable workflows, clean documentation, and AI-assisted tools that still leave a trail a human can check.
About Me
From the lab bench
to the blockchain.
I graduated from UC Berkeley with honors in Molecular Cell Biology. From there I spent three years in translational cancer research at UCSF, then moved through biotech R&D roles at Tizona Therapeutics and Nektar Therapeutics before landing at Kite Pharma (Gilead Sciences). At Kite, I drove data analysis across four to five concurrent CAR T-cell therapy programs: processing samples, running flow cytometry, building the analyses, and creating the presentations that went to directors, VPs, and audiences of 150+ scientists. My work directly informed go/no-go decisions, resource allocation, and study sequencing for therapies targeting multiple forms of cancer.
In parallel, I had been going deep into Bitcoin and digital security on my own time since 2016. What started as curiosity turned into work on custody architecture, operational workflows, self-custody, reducing single points of failure, and inheritance planning for digital assets.
Today I'm based in Hong Kong and work at Bullish as a Specialist, Digital Asset Security. The systematic thinking from science never left. I point it at controls, documentation, review habits, and security workflows that need to hold up when accuracy matters.
AI has become part of that operating system too. I use it to build, review, and document faster, but the standard is still human judgment, source material, and work that can be checked.
Current Role
Specialist, Digital Asset Security
Bullish, Hong Kong. Digital asset security workflows, operational controls, documentation, and review practices.
Bullish
Specialist, Digital Asset Security in Hong Kong. Custody controls, security workflows, documentation, and review.
Science & Pharma
UCSF research, then Kite Pharma (Gilead). Data analysis across 4-5 concurrent CAR-T programs, presenting to 150+ scientists.
UC Berkeley
BA Honors in MCB, Immunology & Pathogenesis. 3.9 GPA, High Distinction.
Work & Projects
Selected projects.
CAR-T Program Data Pipeline
Drove end-to-end data acquisition, analysis, and visualization across 4-5 concurrent CAR T-cell therapy programs at Kite Pharma (Gilead). Built the executive presentations that informed go/no-go decisions for 150+ scientists.
Career Intelligence Pipeline
Built an AI-assisted system that monitors company career pages, scores opportunities against a target profile, generates tailored application materials, and keeps the review loop explicit enough to audit.
Fortress21: Crypto Custody & Security
Through Fortress21 Ltd., I design digital asset custody architecture for people who need stronger operational controls. Single-sig plus passphrase setups for most cases, Bitcoin multisig where it fits, inheritance protocols, and transaction workflows. $10M+ in digital asset security scope supported with zero security incidents.
Mandarin Deck: Free HSK 3.0 Learning App
A browser-based Mandarin learning app I built from scratch. Follows the official HSK 3.0 curriculum (12,281 words), with spaced repetition, native-speaker audio, reading passages, and cloud sync across devices. Live at mandarindeck.com, free to use.
RetireCalc: US Withdrawal Strategy Tool
A US retirement planner that models healthcare costs, Social Security taxation, Roth conversion windows, early-retirement spending, and the other tax variables off-the-shelf tools skip. Browser-only, no backend, no data captured.
What I Build
Security workflows, decision systems, and AI-built tools.
Program Operations & Data Analysis
I turn messy, multi-source work into clear decision systems. At Gilead, that meant analysis across four to five concurrent CAR T-cell therapy programs and presentations that informed go/no-go decisions. Today the same habit shows up in custody operations, documentation, verification checklists, and tools that make review easier.
Digital Asset Security & Custody Controls
Security-critical workflows for digital assets: custody architecture, operational controls, access design, inheritance planning, and transaction review habits. The work is documentation, repeatability, and reducing single points of failure. Operational infrastructure, not speculation.
AI-Built Products & Automation
I use Codex, GPT-5.5, Claude Code, ChatGPT, Cursor/OpenCode, Make, n8n, Supabase, Svelte, and Astro to build tools I actually use. Mandarin Deck, RetireCalc, this site, and smaller workflow systems all come from the same loop: define the job, let AI help with the build, inspect the diff, test the result, and keep judgment in the loop.
Skills & Tools
Tools I use to ship and verify.
AI & Automation
Security
Crypto & Digital Assets
Build Systems
Events and Activities
Hong Kong rooms where the work gets tested.
Lunatechs: AI Video Creation for Everyone
A short recap from the Lunatechs AI video night I co-organized at The Hive Causeway Bay: 120+ people, six speakers, five screened AI videos, Seedance 2.0, and pizza after the talks.
AI Vibe Coding with DeepSeek × OpenCode
A Lunatechs cafe session at Drop By Dough: DeepSeek credits, OpenCode on laptops, Alibaba Cloud in the room, and around 35 people testing an open-model coding workflow.
Lunatechs Workshop: AI & Trading
My recap from the Lunatechs AI & Trading workshop in Hong Kong: four live demos on filings, research agents, crypto factor testing, and trading interfaces.
Boba and Tech: Vibe Coding 101
A Lunatechs and Berkeley Club Hong Kong night at Central Market: boba, Cursor, laptops open, and first apps taking shape.
Latest Writing
Build notes and field notes.
Claude Code vs Codex: What Changed When I Switched Desktop Apps
My actual desktop-app workflow with Claude Code and Codex: where each one fits, where each one fails, and why the diff matters more than the feature table.
Jun 16, 2026 · EssaySingle-Sig + Passphrase Is Powerful, Easy to Mess Up, and Probably Enough for Most People
Why single-sig plus passphrase can be the right self-custody balance for many people, and where the setup becomes dangerous if it is not tested.
Jun 9, 2026 · TutorialYour Backup Is Just a Hope Until You Restore It
A practical restore-test note for photos, documents, password managers, hardware keys, and bitcoin recovery paths.
View all postsGet in Touch
Talk to me about Bitcoin, inheritance planning, or digital security.
Best fit: Bitcoin self-custody, inheritance protocols, custody architecture, digital asset security roles, and AI-assisted tools for security workflows.
Based in Hong Kong. I care most about careful workflows, source-backed claims, and tools that make hard things easier to review.
Email me