About us
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 Meetup at Capital One
Capital One, 1 Old Street Yard,, London, GBPlease register on Eventbrite to join this event.
About this event
LJC Meet-ups is a new series of events, aimed at giving all Community members an opportunity to present at an LJC event.
Join us on 26th February 2026 for a London Java Community meetup hosted at Capital One. This event brings together practitioners exploring what it means to build modern, cloud‑native platforms and work effectively with AI‑powered development tools.
As cloud adoption matures and AI coding agents become embedded in engineering workflows, this evening focuses on two critical themes: architecting for cloud‑native efficiency and leveraging AI agents more effectively in real‑world development.
Talk 1 – Tom Clifford‑Clarke, Lead Software Development Engineer at Capital One
Keeping our heads in the cloud, using AI agents on the groundMany organisations operate entirely in the cloud — but far fewer are truly cloud‑native. As architectures evolve and AI becomes a core concern, the gap between “running in the cloud” and “optimising for it” becomes increasingly costly.
Tom explores why robust architectural patterns and standards are non‑negotiable today. Drawing on Capital One’s journey, he’ll cover practical approaches to Event‑Driven Architecture, serverless adoption, and service cataloguing strategies that unlock scalability, efficiency, and AI readiness — while improving the developer experience.
Talk 2 – Steve Poole, Community Director at LJC
AI-Assisted Development and the New Risk SurfaceAI-assisted coding is now a standard part of development. It accelerates delivery and reduces friction, but it also changes how risk enters our codebases.
AI models replicate patterns at scale, including insecure defaults, outdated practices, and subtle flaws. In some cases, attackers can influence public training data or open-source projects, allowing weaknesses to spread quietly through tools and libraries developers trust.
This talk looks at how AI-generated code fits into the modern software supply chain, and how speed, automation, and trust can be exploited. We'll examine how vulnerabilities slip past reviews, why unvetted AI output can bypass safeguards, and what these failures look like in real systems.
With real-world examples, we'll focus on practical ways to review, test, and integrate AI-generated code responsibly. Strengthening your workflow instead of undermining it.
AI isn't the problem. Unexamined automation is.
The goal is not fear, but sharper judgment about when AI is helping, and when it needs a closer look.
Speaker Bios
Tom Clifford‑Clarke
Lead Software Development Engineer at Capital One. Tom’s background spans large‑scale corporate software, end‑user products, and custom delivery tooling. He now focuses on cloud productivity engineering — improving developer experience and enabling teams to build high‑quality software at a sustainable pace.
LinkedIn: https://www.linkedin.com/in/tbc2/Steve Poole
Community Director for the London Java Community. Steve is a Developer Advocate, DevOps practitioner and a long time Java developer, leader and evangelist. He’s been working on Java SDKs and JVMs since Java was less than one year old.
Linkedin: https://www.linkedin.com/in/noregressions/Huge thanks to our friends at Capital One for sponsoring this event and supporting our Community.
This event is organised by RecWorks on behalf of the London Java Community.
The London Java Community is sponsored by Hazelcast, Neo4j, Redis, and Discover
1 attendee
Past events
984
