What we’re about
The London Java Community (LJC) is a group of Java Enthusiasts who are interested in benefiting from shared knowledge in the industry. Through our forum and regular meetings you can keep in touch with the latest industry developments, learn new Java (& other JVM) technologies, meet other developers, discuss technical/non technical issues and network further throughout the Java Community.
FAQ
What is the LJC?
What goes on in the LJC?
Who can join?
Is there a fee to Join, is there a fee for the events?
How do I join?
Do you have to go to every presentation?
Where are the events held?
Can I read some member feedback?
Can I give a presentation to the LJC?
What is the LJC?
The LJC is an official Java User Group for developers based in London. It was founded in November 2007 and since then has grown to over 5000 members and is now the biggest Java User Group in the UK.
What goes on in the LJC?
We run a variety of regular events ranging from social events and technical presentations to our full day unconference. On top of the events we run prize draws and have an active mailing list/forum. We support the Graduate Development Community in London and promote London based Open Source Software projects where possible.
Who can join?
Membership is restricted to Java developers working in or around London (or those hoping to train in Java, or relocate to London). Membership will not be granted to those involved in the recruitment industry.
Is there a fee to Join, is there a fee for the events?
It’s completely free to join and 99% of our events are completely free. The only event which is charged for is the Unconference, the charge is minimal and it is there to cover refreshments on the day.
How do I join?
Just click on the link on this page to sign up to the mailing list, you'll hear of all of our latest news and events and can take part in the monthly prize draws.
Do you have to go to every presentation?
Absolutely not – it’s completely up to you which events you attend and which you don’t. Every event attracts a different crowd.
Where are the events held?
Europe's Premier technical training company, Skills Matter (Barbican) sponsor most of our events by providing the venue.
Can I read some member feedback?
We have been collecting feedback for the last few years from our members you can read it here: https://www.meetup.com/Londonjavacommunity/about/comments/?op=all
Can I give a presentation to the LJC?
We run various in-person and online events, and welcome highly experienced speakers, all the way through to those just starting out. If you have a presentation you'd like to submit for consideration, please visit https://sessionize.com/ljc
For further information see our blog here: https://londonjavacommunity.wordpress.com/s... Do not hesitate to get in touch with any questions.
Barry Cranford
Founder of London Java Community
Upcoming events
1
LJC Meet-up at Discover
Discover, 201 Talgarth Road, Hammersmith, W6 8BJ, London, GBPlease register on Eventbrite to join this event.
About this event
Join us for a special London Java Community meetup in partnership with Discover, where we’ll explore how AI is transforming developer productivity — from building smarter workflows to exposing new security risks in code.
This evening features three thought-provoking talks packed with demos, practical insights, and real-world examples.
Talk 1 — Holly Cummins, Senior Principal Software Engineer, IBM
How Quarkus Makes Your Apps Cheaper, Greener, and HappierQuarkus boosts both developer and runtime efficiency — but how? Holly dives into the tech that makes Quarkus so fast and lightweight, covering reactive programming, native binaries, and testing. Expect live demos (including one faster than a light bulb!).
Talk 2 — Ashu Swami, Application Engineer, Discover
Inside GitHub Copilot: The IDE Secrets You Need to KnowGo behind the scenes of GitHub Copilot with short, interactive demos. Learn how to craft better prompts, understand Copilot’s context awareness, and turn it into your most effective coding partner.
Talk 3 — Steve Poole, Director of Communities, London Java Community
The Enemy Within: How AI is Weaponizing Your CodeAI-generated code can supercharge productivity — but it can also introduce hidden vulnerabilities. Steve exposes how attackers exploit AI tools, compromise open-source projects, and what you can do to defend your software supply chain.
Speakers
Holly Cummins – hollycummins.com
Ashu Swami – LinkedIn
Steve Poole – LinkedInCome for the talks, stay for the community — and discover how to make AI your most powerful (and safest) coding ally.
Please register on Eventbrite to join this event.
1 attendee
Past events
980
