Track record
The work, the stages, the community.
Everything here is dated and defined. Speaking counts only delivered sessions; community numbers belong to everyone who built ZurichJS with me.
- talks delivered
- 60
- podcast appearances
- 7
- Yrs to JSNation Community of the Year
- <2
- Community Members
- 4.5K
Engineering
Shipped, measured, corrected.
What changed, by how much, and when.
~83%
New Indian Subs on UPI
On Smallpdf (tens of millions of monthly users), UPI carried ~83% of new Indian subscriptions within three months, reopening a market card-only checkout had closed.
+63%
30-Day Retention
On Smallpdf's monetization platform (tens of millions of monthly users), an A/B-tested cancellation-flow redesign lifted 30-day retention of cancelling users by 63%.
~1.5%
Conversion Held Flat
Introduced US sales tax to Smallpdf's largest market with failure-tolerant previews; across tens of millions of monthly users, checkout conversion held at 1.4–1.6%.
~86%
Apple Pay Success Rate
On Smallpdf (tens of millions of monthly users), one-tap Apple Pay reached ~86% checkout success in Australia versus ~57–67% on cards.
All 8 figures
- ~83%Smallpdf — 2025Product & UX
New Indian Subs on UPI
On Smallpdf (tens of millions of monthly users), UPI carried ~83% of new Indian subscriptions within three months, reopening a market card-only checkout had closed.
- +63%Smallpdf — 2025Product & UX
30-Day Retention
On Smallpdf's monetization platform (tens of millions of monthly users), an A/B-tested cancellation-flow redesign lifted 30-day retention of cancelling users by 63%.
- ~1.5%Smallpdf — 2025Product & UX
Conversion Held Flat
Introduced US sales tax to Smallpdf's largest market with failure-tolerant previews; across tens of millions of monthly users, checkout conversion held at 1.4–1.6%.
- ~86%Smallpdf — 2025Product & UX
Apple Pay Success Rate
On Smallpdf (tens of millions of monthly users), one-tap Apple Pay reached ~86% checkout success in Australia versus ~57–67% on cards.
- -60%Smallpdf - 2025Product & UX
Bundle Size
On Smallpdf's checkout (tens of millions of monthly users), conditional code-splitting cut bundle size 60% from ~966 KiB, loading only the payment SDK in use.
- >20Smallpdf - 2025Product & UX
Experiments
Across Smallpdf's monetization surface (tens of millions of monthly users), 20+ experiments shipped across checkout, pricing, payments, and subscription lifecycle.
- 14×Smallpdf (Apr 2025 Launch)Product & UX
New Subscriptions
On Smallpdf (tens of millions of monthly users), new subscriptions grew ~14x after launching Alipay via Stripe in China; quickly the top method for new Chinese subscribers.
- -90%Smallpdf - 2025Product & UX
Rollout Time Reduced
On Smallpdf (tens of millions of monthly users), a declarative orchestration layer cut adding a payment method from days of work to ~10 lines of config, wired into analytics, types, and monitoring.
No figures for that combination.
- Aug 2024 – Present
Staff Frontend Engineer - Monetization · Smallpdf
Contributed to the popular document management SaaS platform
- Aug 2022 – Jul 2024
Founding Engineer, Frontend Tech Lead, Engineering Manager · Navro
Joined as the first member of the engineering team for this payments curation layer startup
- Nov 2021 – Jul 2022
Software Engineer II · Fiit
Joined the #1 rated workout app that brings personal trainers to your home and gym
- Oct 2022 – Present
Software Engineering Mentor · MentorCruise
Provide mentorship to aspiring frontend professionals
- Jul 2020 – Aug 2021
Junior Front-End Developer - Connected TV · FX Digital
FX is a TV, Voice and Web application development agency, providing innovative solutions for brands looking to pioneer the latest technologies.
- Eurosport · Worked on Connected TV applications reaching millions of users worldwide. Helped develop the text-to-speech accessibility integration for set-top boxes and led the integration of In-App-Purchasing for Comcast devices.
- GCN · Developed the Global Cycling Network (GCN) Connect Devices TV Application. Implemented text-to-speech accessibility integration for devices such as Amazon Fire TV and Samsung. Worked directly with Figma designs for UI component implementations.
- Discovery+ · Worked on the Discovery Plus Connected Devices Application. Contributed to accessibility features and in-app purchasing integrations for the streaming platform.
Recognition
Most Impactful Contribution to the Community
ZurichJS · GitNation Open Source Awards · JSNation · 2026
