Android

KotlinLeeds 2026

KotlinLeeds is the UK's first dedicated Kotlin conference, held in the north of England. Founded in 2025, this non-profit event is run by community volunteers and brings together Android developers, Kotlin Multiplatform pioneers, and backend engineers to learn, share, and grow. Building on the success of SwiftLeeds, the conference offers world-class sessions…

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22Speakers
1Sponsors
20On the bill · sessions
9Companies · in total
§I

Speakers

Programmed at KotlinLeeds, in alphabetical order.
Andrea Della Porta
Mobile Manager @ Capgemini · Capgemini
Ariella Mendel
Senior Android Engineer & Adjunct Professor of Android
Ayako Hayasaka
Software Engineer at LY Corporation · LY Corporation
Bruce Hamilton
Ktor Technical Lead
Coming Soon
Internet
Dinorah Tovar
Google Developer Expert on Android
Dmitry Jemerov
Co-creator of Kotlin · JetBrains
Elvis Chidera
Staff software engineer · Delivery Hero
Ivan Canet
Software Engineer
Jessica Randall
Android Enthusiast
Julien Salvi
Lead Android Engineer @ Aircall · Aircall
KotlinLeeds
The Playhouse · Leeds
Leeds Playhouse
[View Venue Pack](https://swiftleeds.co.uk/pdf/Leeds_Playhouse.pdf)
Michael Gerasymenko
Mobile at ElevenLabs Inc. · ElevenLabs Inc.
Mina Vojdanitafreshi
Fastned, Backend engineer · Fastned
Nikita Bobko
Open source contributor. ex-JetBrains, ex-Kotlin
Noam Efergan
Self taught iOS developer and general nerd
Our Sponsors
[![Screenshotbot](https://swiftleeds-speakers.s3.eu-west-2.amazonaws.com/33DC9E64-56A1-4F44-8CE9-478C0459E2B2-logo-dark.png)](https://screenshotbot.io/)
Pamela Hill-Galloway
Developer Advocate at JetBrains · JetBrains
Sam Cooper
Author of Kotlin Brain Teasers
Sebastian Ager
Software Engineer · JetBrains
Simon Vergauwen
Developer Advocate at JetBrains & OSS (arrow-kt) Maintainer · JetBrains
§II

Sponsors

The houses behind the program. Tiers as disclosed.
Screenshotbot
§III

Agenda

Selected from 20 sessions on the bill.
  • 10:00 – 10:45

    Advanced DSLs in Kotlin

    Kotlin has powerful support for building DSLs. In this talk we’ll explore all the existing techniques and language features used to build powerful DSLs for your applications. We’l…

  • 10:00 – 10:45

    Javascript is Dead: the Past, Present, and Future of Full-stack Development

    Over the span of my career, I've seen Javascript evolve from a simple browser scripting language into the most popular programming language in the world. While some might love it, …

  • 10:00 – 10:45

    Opening Keynote

    More details coming soon 👀

  • 10:45 – 11:15

    When "Refresh" is too slow: Making your app Real-Time

    Most mobile apps still rely on polling, pull-to-refresh, or the pushes to synchronize with the backend. As apps scale, this approach quickly breaks down, leading to stale UI and fr…

  • 10:45 – 11:30

    The Dark Corners of Kotlin Multiplatform

    Kotlin Multiplatform is powerful, flexible, and full of promise—but it’s not all smooth sailing. Behind the glossy headlines and official documentation lie subtle bugs, platform qu…

  • 11:30 – 12:15

    Coroutines vs. Threads: The True Cost of a Context Switch

    We've all been told that coroutines are "lightweight" and threads are "expensive." But what does this really mean at the OS and hardware level? This talk goes beyond the Kotlin API…

  • 11:30 – 12:15

    HTTP/3 in Production: What the Numbers Actually Say

    This talk presents empirical findings from a production A/B test comparing HTTP/2 and HTTP/3 across a globally distributed food delivery platform spanning 18 markets and serving mi…

  • 11:45 – 12:15

    Swift Export: Where We Stand

    Swift Export, the much-anticipated project from the JetBrains team, has been in progress for some time and is currently in the Experimental state. The project’s goal is to make cal…

  • 13:30 – 14:15

    Keep It Secret, Keep It Safe: A Developer’s Journey with Android Keystore

    Security shouldn’t be an afterthought—it should be built in. But let’s be real: as developers, many of us are more comfortable designing UI than dealing with encryption and secure …

Intermission
Part the Second · For the Buyer

An audience of 9 companies, parsed from the program.

Nine companies in attendance.

The numbers below are derived from the speakers, sponsors, and exhibitors on this page — cross-referenced into one ledger. They are the only thing here that 10times.com cannot tell you.

Who's in the room
0All threespeak · spons · exh
1Sponsoringsponsor only
8Companies Speakingspeaker only
Speakers by seniority
  • Manager / Lead418%
  • Engineer · IC941%
  • Other roles941%

Of 22 on the bill · classified by free-text title

Most-represented companies
  1. 01JetBrains4V
  2. 02ScreenshotbotSp
  3. 03Aircall1V
  4. 04Capgemini1V
  5. 05Delivery Hero1V
  6. 06ElevenLabs1V
  7. 07Fastned1V
  8. 08Leeds1V
  9. 09LY Corporation1V
Sponsors by tier
unspecified1
100% of 1