Dec 20256 min
Scaling Real-Time Notifications
How we shipped low-latency notifications to millions without melting the database.
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12.4KFollowers
342Following
Alex
Chen
Senior Developer building scalable marketplaces and real-time systems at the intersection of performance, reliability, and craft.
Available for work
San Francisco, USA
CURRENTLY
Senior Developer
@ DubyStudios
2021 — Present
FOCUS
ReactTypeScriptNext.jsNode.jsPostgreSQL
Selected Work
Experience
2023
Senior Developer
DubyStudios
Leading the marketplace platform — search, payments, and real-time notifications.
Next.jsTypeScriptRedis
2021
Frontend Engineer
Vercel
Built developer tooling and dashboard features used by millions of developers.
ReactGraphQLEdge
2019
Software Engineer
Stripe
Developed merchant-facing payment infrastructure and checkout flows.
RubyReactPostgreSQL
Recent Thoughts
Oct 20255 min
Search That Feels Instant
Lessons from optimizing marketplace search by 40%.
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Let's Connect
Always interested in new opportunities, collaborations, and conversations about technology and design.