London Scala User Group

Agenda
6:00pm - 🥤 Doors open. Come along and grab a drink!
6:40pm - 🗣️ Jacob Wang: A comprehensive tour of error handling in Scala
7:20pm - 🍕 Intermission: Join us for some free food and drinks! Vegan, vegetarian and gluten-free options are provided. Let us know if you'd like something special - we'd be happy to accommodate.
7:50pm - 🗣️ Jack Higgs: Starship Enterprise: Functional Programming at Huge Companies
8:30pm - 🥤 Socialising: Grab a drink and let's discuss the talks.
9:00pm - 🍻 Join us in The Butcher's Hook and Cleaver pub to discuss the talks!

🌐 This event has a live stream. Join the webinar at 6:40PM.
Watch this space for more details.

🗣️ Jacob Wang: A comprehensive tour of error handling in Scala
Errors are part of life - But how best to work with them in our code?
In this talk, I'll take you on a tour of various typed error handling approaches within the Scala ecosystem,
as well introduce a new one for cats/cats-effect ecosystem!

⭐ Jacob Wang ⭐
Jacob has been writing Scala for close to 10 years. He enjoys creating programs that mostly
behave, as well as sharing this joy via open source & teaching.

🗣️ Jack Higgs: Starship Enterprise: Functional Programming at Huge Companies
Practicing functional programming inside a Fortune 100 enterprise can feel like flying the Starship Enterprise through asteroid fields of legacy code and bureaucracy. This talk shares hard-earned lessons from the Information Engineering team at JPMorganChase, which runs a production Scala codebase powering a novel metadata platform. We'll explore the political, cultural, and technical friction of pushing functional programming in a Java and Python dominated environment. We'll introduce the domain we work in, the techniques that have worked (and those that haven't), the compromises we've made, and why - despite it all - we still think it's worth it. If you've never tried to run cats-effect in a place where Spring Boot is king, add this talk to your battle log.

⭐ Jack Higgs ⭐
Jack Higgs is a technologist with fifteen years of experience in investment banking, including the past decade at JPMorganChase. He leads teams building metadata platforms using Scala and functional programming techniques. Over the past six years, Jack has worked at the intersection of software engineering, data architecture, and large-scale enterprise systems. Passionate about type safety, functional design, and making abstract ideas practical, he thrives on applying elegant code in messy real-world environments.

Frequently Asked Questions
I can’t get into The Trade Desk!
To attend our event hosted by The Trade Desk you will need to be registered with the building. Please provide your name and email address when registering.
Before the event, you’ll receive an email from “One Bartholomew” titled “Your appointment at One Bartholomew”. If this is your first time at The Trade Desk, you will need to fill in an online form. Following this, you will be sent a QR code.
On arrival, enter the building and scan the QR code at the barriers to access and see the lift on the display (A-F). The lift will send you to the 10th floor.
After exiting the lift, make your way to The Trade Desk reception.
You can find detailed instructions here .
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🗣️ Would you like to present, but are not sure how to start? Give a talk with us and you'll receive mentorship from a trained toastmaster! Get in touch through this form and we'll get you started
🏡 Interested in hosting or supporting us? Please get in touch through this form and we can discuss how you can get involved.
📜 All London Scala User Group events operate under the Scala Community Code of Conduct.
We encourage each of you to report the breach of the conduct, either anonymously through this form or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.

Frequently Asked Questions
I am a novice Scala developer, is this the right event for me? 📚
Yes! One of the best ways to improve your Scala skills is by working on Open Source library and projects!
If you're completely new to Scala / programming, ScalaBridge is a great way to get started!

I don't know what projects I should contribute to.. ↔️
We have a list of Scala projects that would love to have some contributions. Other than get-work-done libraries, we have cool projects like game engine, frontend framework, synthesiser!

I have an idea for a Open Source project but it's a bit daunting. Can you help? 🏔️
Yes! We'd love to see more open source Scala projects and contributors! We can help you get started and provide technical guidance whenever you need it.

Help! I'm stuck outside the building / somewhere!
Joining our discord is probably the best way to be heard!

Discord server invite link:
https://discord.com/invite/aRCVCHmHES

The chatroom is #oss-hack-night. Ping @Jacob Wang if you need urgent attention!

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📜 All London Scala User Group events operate under the Scala Community Code of Conduct:
https://www.scala-lang.org/conduct/
We encourage each of you to report the breach of the conduct, either anonymously through this form or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.

In this session, we'll be programming with Creative Scala - a fun way to explore and practise functional programming with Scala.

Whether you are completely new to Scala or experienced with functional programming, all levels of experience are welcome! Perhaps you're looking for some help getting set up as a beginner. Perhaps you want to practise your programming skills with peers. Perhaps you want to take a break from your day job and flex your curiosity in a fun environment! Sit back, relax, explore, and learn by doing... ✨

Agenda
6:00pm - 🍕 Socialising: Join us for some free food and drinks! Vegan, vegetarian and gluten-free options are provided. Let us know if you'd like something special - we'd be happy to accommodate.
6:30pm - 💻 Hands-on programming with Creative Scala!
8:30pm - 🍹 Join us at a pub!

————————————————————
🗣️ Would you like to present, but are not sure how to start? Give a talk with us and you'll receive mentorship from a trained toastmaster! Get in touch through this form and we'll get you started
🏡 Interested in hosting or supporting us? Please get in touch through this form and we can discuss how you can get involved.
📜 All London Scala User Group events operate under the Scala Community Code of Conduct:
https://www.scala-lang.org/conduct/
We encourage each of you to report the breach of the conduct, either anonymously through this form or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.

Agenda
6:00pm - 🥤 Doors open. Come along and grab a drink!
6:40pm - 🗣️ Agnès Cardin: Full and jobless, she decides to write a book about Scala during Covid
7:20pm - 🍕 Intermission: Join us for some free food and drinks! Vegan, vegetarian and gluten-free options are provided. Let us know if you'd like something special - we'd be happy to accommodate.
7:50pm - 🗣️ Maciej Gorywoda: AI Tooling for Scala Developers - What JetBrains Brings to the Table
8:30pm - 🥤 Socialising: Grab a drink and let's discuss the talks.
9:00pm - 🍻 Join us in The Butcher's Hook and Cleaver pub to discuss the talks!

🗣️ Agnès Cardin: Full and jobless, she decides to write a book about Scala during Covid
Feedback on a first book writing: how did it happen? Why did I accept? Which depression steps have I experienced?
I'll talk about relationships with the editorial team, delays, steps to finalize a book from day one, with the first lines until the delivery.

I won't stop here, I'll mention marketing, advertising, printing, official release and why I will never do this again.

⭐ Agnès Cardin ⭐
Passionate pragmatic developer, I love cats 🐱, video games 🎮 and Japan 🇯🇵.
I love a job well-done, and I am always looking for the best way to do things without reinventing the wheel.
On a daily basis, I tend to cultivate an effective work ethic that makes sense for me. 🌟

🗣️ Maciej Gorywoda: AI Tooling for Scala Developers - What JetBrains Brings to the Table
In the last few years, one of the leading new areas of development in JetBrains has been AI assistance. It started with simple access to an external large language model within IntelliJ IDEA—but we didn’t stop there.
Today, JetBrains offers a wide range of new features and plugins that can make software developers work more quickly and productively. During this talk, we will go through the most important of them – AI Assistant, local and cloud completion, connecting to local LLMs, and more. We will discuss how these tools can boost your productivity and improve your coding experience. We will also delve into… sorry, I mean, we will talk about JetBrains Junie, AI agents in general, and the future of AI tooling.
The talk will consist of animated infographics and live coding examples.

⭐ Maciej Gorywoda ⭐
Product Marketing Manager in IntelliJ Scala team at JetBrains. Scala Ambassador. Teaching Scala and making the Scala community more beginner-friendly. Self-publishing a fantasy novel.
————————————————————
🗣️ Would you like to present, but are not sure how to start? Give a talk with us and you'll receive mentorship from a trained toastmaster! Get in touch through this form and we'll get you started
🏡 Interested in hosting or supporting us? Please get in touch through this form and we can discuss how you can get involved.
📜 All London Scala User Group events operate under the Scala Community Code of Conduct.
We encourage each of you to report the breach of the conduct, either anonymously through this form or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.