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COMING UP

JPM Week SF 2026
(Jan 12 - Jan 16)
 
 
 
 
 
 
 
 
 
 
 
Popular Event 
With Alexander Saenko (CTO, Sigma S/w), Carter Levin (S/w Enggr, Duolingo).
Duolingo, 150 Greenwich St
Jan 21 (Wed) , 2026 @ 06:00 PM
FREE
 
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DETAILS

We are looking for hosts & speakers. Please fill out this form if you would like to host or speak at future events.



Special thanks to Duolingo for hosting us this month.
Food & drink will be provided!

Welcome to yet another great evening of learning & networking!
This event will be held both in person & online.

Agenda:
6:00 PM - Doors Open (in-person attendees). Don't forget your ID!
6:30 PM - Welcome (in-person & Zoom attendees)
6:35 PM - First Talk: Code Architecture & AI
7:05 PM - Community Announcements
7:15 PM - Second Talk: Designing Simplicity: Our Team's Path into The Composable Architecture
7:45 PM - Networking
8:30 PM - Doors close. Regroup at a bar nearby

First Talk Description:
Code Architecture & AI
Carter Levin, Software Engineer at Duolingo

AI is great at writing apps from scratch, but struggles to consistently capture the conventions & context of a larger codebase. Without explicit guidance the architecture & patterns an LLM uses today are often incompatible with those used yesterday. I'll be presenting on how we've set up a pipeline of scripts, prompts & templates to guide LLM code generation flows toward a set of constant architectural patterns & cue it into our codebase specific context.

Carter has been at Duolingo for over 6 years. In his free time he plays squash & is interested in game design.

Second Talk Description:
Designing Simplicity: Our Team's Path into The Composable Architecture
Alexander Saenko, Field CTO at Sigma Software, Cofounder of iOSUkraine

I will talk about how our team embraced The Composable Architecture to tame complexity & achieve cleaner code. I'll share the challenges, lessons learned, & the key principles that guided our implementation.

Alexander is Field CTO @ Sigma Software. He started his career as an iOS engineer over 12 years ago & has experience in different domains such as ad tech, healthcare, hospitality & retail software, etc. He organized different iOS events, including one of the biggest conferences in Ukraine for iOS engineers, iOSUkraine.

Alexander has been working with mobile apps & related technologies since 2012, back when manual reference counting in ObjectiveC was still common. He began his career as an iOS engineer & later gained experience with a range of mobile technologies, including PhoneGap, Cordova, Android, React Native, Xamarin, & Flutter.

After building a strong engineering foundation, Alexander moved into hybrid engineering/management roles to better understand both customer & team needs, become more involved in business processes, & broaden his expertise into fullstack development. He has mentored mobile engineers at his company & served as a trainer at Sigma University, where he taught students.

Alexander has also been an organizer of the Kharkiv iOS User Groups & the iOS Ukraine conferences, both of which have held multiple editions. He has spoken at multiple conferences in Ukraine & Brazil, & this will be his first appearance at a conference in the United States.
 
 
 
 
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