Data Engineering

BOOK YOUR TICKET 👉🏼 [HERE](https://itsadate.club/event/games-themed-speed-dating-47/). Designed for guests aged 25 to 38 looking to connect(4) with fun-loving singles during a relaxed and informal board games inspired evening. Draughts is a super-fun concept bar located in the iconic Leake Street Graffiti tunnel just steps away from Waterloo Station. This unique games-themed event is hosted in a private area of the venue – The Loft, with a contemporary vibe, beautifully exposed brickwork, and our own private bar. This is a doubles speed dating event, so be prepared to get to know other single people in an entertaining and interactive way as you move between tables playing new and nostalgic games in groups of four. Designed for social singles booking individually or with friends, you will be welcomed by our host at 19:15 and have the chance to grab a drink from the bar before we begin. Ladies will be paired and seated comfortably on tables with various board games. These are selected to be short in duration (approximately 12-minutes) and great for helping you break the ice as you get to know your fellow players. Gents will be invited to rotate around the tables in pairs, playing a variety of entertaining games, having no shortage of laughs along the way. There will be a half-time comfort break and lots of opportunity to mingle with others in this informal yet lively setting. Post-event matching will be available on your It’s a Date dashboard where you could find you’re on a winning streak in love as well as in Jenga! If you have any questions on the event or how things will work, please get in contact with James on 07517 065 492 or [james@itsadate.club](mailto:james@itsadate.club).

**Kindly note that this is a paid event and the average number of attendees for our events is 60-70 people. You can register on [https://www.eventbrite.co.uk/e/startup-connector-london-startup-founder-networking-event-tickets-1985229053540?aff=meetup](https://www.eventbrite.co.uk/e/startup-connector-london-startup-founder-networking-event-tickets-1985229053540?aff=meetup)** Startup Connector® London: founders, entrepreneurs & investors networking to build partnerships, exchange ideas and grow startups. Join the 26th edition of **Startup Connector®**, a dynamic **London startup networking event** designed for **startup founders, entrepreneurs, investors, innovators, and business leaders** looking to build meaningful connections and grow within London’s thriving startup ecosystem. Hosted by **London Connector® at Hay Hill**, this event brings together **early-stage founders, experienced entrepreneurs, angel investors, venture capital professionals, and ambitious business builders** for an evening of high-quality networking in a welcoming and professional environment. Whether you are **launching a startup, scaling your company, searching for investment, or exploring new partnerships**, Startup Connector® provides the ideal space to meet the right people and exchange ideas. ### **⭐ Why Attend Startup Connector®?** **🤝 Connect with founders and entrepreneurs** Meet startup founders, business owners, innovators, and professionals building exciting companies across London. **🌐 Expand your startup network** Build valuable relationships with people who can support your business journey, from mentors to collaborators and investors. **💡 Discover new opportunities** Explore partnerships, collaborations, and potential investment conversations with people actively involved in the startup ecosystem. **📈 Learn from real entrepreneurial experiences** Engage in conversations with founders who are building, scaling, and growing businesses in today’s competitive market. ### **👥 Who Should Attend?** Startup Connector® is designed for: • 🚀 **Startup founders and co-founders** • 💼 **Entrepreneurs and aspiring founders** • 💰 **Angel investors and venture capital professionals** • 🧠 **Startup advisors and consultants** • 💻 **Tech professionals and innovators** • 🏢 **Business owners and directors interested in startups** If you are looking to **connect with the startup community in London**, this event is the perfect opportunity. ### **📅 Event Format** The format of the evening is **pure networking**, allowing attendees to have natural conversations and build genuine relationships without formal presentations. **🕕 5:00 PM – Event Begins** Guests arrive and the evening begins with **hosted free-format networking**. **🔗 Throughout the Evening – Open Networking** Meet founders, entrepreneurs, and investors while building valuable connections within London’s startup ecosystem. ### **📲 WhatsApp Networking Group** 24 hours before the event, we will create an **exclusive WhatsApp group for attendees**, allowing participants to start interacting before the event. This helps founders and entrepreneurs **introduce themselves, plan meetings during the event, and continue conversations afterwards**. On the day of the event, you will receive an email invitation to join the WhatsApp group. ### **📸 Event Disclaimer** Photos and videos may be taken during the event for use across **social media channels, marketing materials, and promotional campaigns**. Thank you for your understanding and cooperation. * [United Kingdom Events](https://www.eventbrite.co.uk/d/united-kingdom/events) * [Greater London Events](https://www.eventbrite.co.uk/d/united-kingdom--greater-london/events) * [Things to do in London](https://www.eventbrite.co.uk/ttd/united-kingdom--london) * [London networking](https://www.eventbrite.co.uk/d/united-kingdom--london/networking) * [London Business networking](https://www.eventbrite.co.uk/d/united-kingdom--london/business--networking)

Mondays at Wimbledon Salsa & Bachata Club Wimbledon Salsa & Bachata Club, Drake House Dance Hall, 44 St George’s Rd, Wimbledon, London SW19 4ED 7pm – 11:00 pm Bachata classes: 7:30 pm – 8:30pm Salsa classes: 8:45pm – 9:45pm Social Dancing from 9:45pm Closed at 11pm) No prior bookings needed, just turn up and dance Absolute beginners warmly welcomed High quality lessons from Beginners to Advanced. Fun & friendly classes for dancers of all levels. Plenty of high quality social dancing to the best and latest Salsa, Bachata, Cha Cha and Latin grooves. Wear comfortable shoes and light clothes, to keep you dancing comfortably all night £16 Classes + Club 4 min walk from Wimbledon Main Line station. Parking on surrounding streets. To buy any of our awarding winning Salsa courses online, simply click on the course of your choice. The course credits can be used at any of our venues at any time in a 12 month period: New Salsa course for any level: 3 weeks SALSA BRONZE @ £45 6 weeks SALSA SILVER @ £84 9 weeks SALSA GOLD @ £117 Incognito Dance Company also teaches regularly at Caliente Salsa & Bachata Club, Earl's Court Salsa & Bachata Club, Putney Salsa & Bachata Club, Hammersmith Salsa & Bachata Club. As well as Online

**Kindly note that this is a paid event and the average number of attendees for our events is 60-70 people. You can register on [https://www.eventbrite.co.uk/e/london-business-networking-event-in-mayfair-for-entrepreneurs-and-directors-tickets-1985228983330?aff=meetup](https://www.eventbrite.co.uk/e/london-business-networking-event-in-mayfair-for-entrepreneurs-and-directors-tickets-1985228983330?aff=meetup)** Premium Mayfair networking bringing entrepreneurs, investors and directors together at Hay Hill to build high-value business connections. Join an exclusive business networking event in the heart of **Mayfair, London**, designed for **entrepreneurs, company directors, investors, founders, and senior professionals** looking to build meaningful relationships and discover new opportunities. Hosted at the prestigious **Hay Hill Private Members Club (W1J, Berkeley Square)**, this event brings high-level decision-makers together for quality conversations, collaborations, and long-term business connections. Whether you're growing a startup, scaling a company, raising investment, or expanding your professional network, this London networking event offers a premium environment to meet the right people. ## 💼 **Why Attend This London Networking Event?** * Connect with **entrepreneurs, business owners, CEOs and decision-makers** * Meet **angel investors, VCs, consultants, advisors**, and partnership-ready professionals * Build business relationships in an elegant **Mayfair** setting * Explore collaborations, joint ventures, and high-value introductions * Expand your circle within London’s most active professional community This event is perfect for those serious about business growth and visibility in London’s fast-moving professional ecosystem. ## 🧩 **What to Expect** * A warm, relaxed, and professional atmosphere * Open networking from the moment you arrive * Opportunity to meet entrepreneurs from diverse industries * Conversations that spark partnerships, business deals, and long-term connections * A curated crowd of business-focused professionals * Access to an exclusive WhatsApp group for pre-event and post-event networking ## 👥 **Who Should Attend** This event is designed for: * Entrepreneurs & startup founders * Investors & venture partners * Business owners & company directors * Consultants & senior professionals * Professionals looking for new clients, partners, or collaborators * Anyone wanting to expand their London business network in a premium venue ## **Our unique venue is:** Set in a stunning six-story building at **Berkeley Square, Hay Hill** is unique as it combines the luxury of a private members club with the business focus of a co-working environment, pioneering the concept of the club working, all in the heart of Mayfair. For our event, we have reserved an area of the venue with a cash bar, so that we can mix and mingle and meet old and new friends, new contacts, and, why not, new clients too! ## **Program** The format of the evening is 'mix and mingle', meet like-minded business leaders and entrepreneurs, and investors in a relaxed environment. Our team is on-site to facilitate meaningful introductions. We connect at a human-to-human level, and prefer building relationships. ## **How many people are attending?** We have a **maximum capacity of 80 guests** for this venue and given the popularity of our events and the nature of the venue that hosts us, **this one is predicted to be sold out in advance,**, **also because on average for each event we run,**, **30-40 places are booked by our members who have joined the yearly membership. Early booking is truly and highly recommended.** The reason the events we organize are so successful is that we follow a very simple, but effective formula. A couple of days before the event, **we create a WhatsApp group with those attendees who wish to start getting to know each other**. This allows each participant to set up meetings with those they wish to meet during (or even before) the event. On the day of the event, you will find a relaxed environment and a welcoming and supportive crowd. **Our team will be at the venue to introduce you to anybody specific you'd like to talk to.** Guests will have access to the part of the Club reserved for our event, but not to other private areas of Hay Hill Club. You can book a private tour, though. **Dress code: business casual (no trainers, no jeans)** **Refund policy. Tickets bought in advance are generally cheaper than those bought on the day of the event and for this reason cannot be refunded. They can be reassigned to another person of your choice.** **WhatsApp Group 📲** Continue the conversation before and after the event by joining our exclusive attendee WhatsApp group. On the day of the event, you will receive an email inviting you to join the WhatsApp message for the event. **Event Disclaimer** Photos and videos may be taken during the event for use across our social media channels and promotional materials. Thank you for your understanding and cooperation.#Business #Businessevent #businessnetworking #Businessprofessional #Londonevent #Networking * [United Kingdom Events](https://www.eventbrite.co.uk/d/united-kingdom/events) * [Greater London Events](https://www.eventbrite.co.uk/d/united-kingdom--greater-london/events) * [Things to do in London](https://www.eventbrite.co.uk/ttd/united-kingdom--london) * [London conferences](https://www.eventbrite.co.uk/d/united-kingdom--london/conference) * [London Business conferences](https://www.eventbrite.co.uk/d/united-kingdom--london/business--conference)

Our next English Conversation Café will be on **Monday 13th April 2026 at** **7:30pm**! Topic for the evening: To be confirmed You will have an opportunity to practice your English and meet new people, through conversation topics and games. This event is mainly for learners of English, so we kindly ask native speakers to give priority to others. The venue is **downstairs** in Costa Coffee, 3 Southwark St, London SE1 1RQ which is a 1 minute walk from London Bridge Station. This is a **free** event, you will not be expected to pay for anything. You will also be able to have a free drink and cake. The café is run by a group of volunteers from [The Globe Church](https://www.globe.church). Please sign up if you would like to attend. If you have any questions please ask us using Meetup. Numbers are limited so please only sign up if you are going to come and change your response if you can no longer come. Look forward to seeing you soon 😊

**BOOK HERE**: https://sportas.co.uk/games/45253 **Game Description:** Come and join a casual mixed football game in Stratford 😎 **Directions:** 🚶‍♂️5 minute walk from Stratford International DLR Station 📍 Pitch 3 - In the small 6 aside cages NOT the big 11 aside pitch. **Rules** Classic 6 aside rules, can be explained at the start of the session. Please be encouraging and positive to all players 🧡

🎉 **Event #23 – The Analytics Engineering Meet-up** 🎉 The London Analytics Engineering Meet-up - Hosted by Monzo! **Speakers:** [Pablo Fernandez](https://www.linkedin.com/in/pablofergui/) \- Head of Data & Analytics Engineering @ Lawhive [Federico Arduini](https://www.linkedin.com/in/federicoarduini/) \- Lead Analytics Engineer @ Checkout\.com 📅 **RSVP opens 27th March** (3.5 weeks before the event). This event will be **over-subscribed**, so set a reminder — you won’t want to miss it! 📍 **Agenda** 6pm – Doors open, networking, food & drinks 7pm – Talks kick off 8:30pm – More drinks & networking @ local pub This is a fantastic opportunity to connect with some of the UK’s top data professionals, share challenges, and exchange learnings. We are always looking to improve the event and get new ideas for talks, if you could please fill out a [feedback form](https://cognifysearch.com/the-london-analytics-engineering-meet-up-feedback-form/), this will help us continue to improve! The **Analytics Engineering Meet-up** is a community for data professionals working with the modern data stack, machine learning or AI. We host regular meet-ups featuring talks from data leaders building and scaling analytics, data platforms, and AI in forward-thinking teams. The community is ideal for Data Engineers, Analytics Engineers, Analysts, and those working in Data Science, Machine Learning, or AI. The **Analytics Engineering Meet-up** is organised by [Cognify](cognifysearch.com) — a specialist recruitment partner for teams working across the modern data stack, machine learning & AI. If you’re looking to hire top data talent or exploring your next move in data, feel free to reach out to the Cognify team — we’re always happy to help and chat through the market. Our sponsor is [Omni](Omni.co), an AI-powered BI platform that helps people use data to do their best work. Whether users prefer AI, Excel, point-and-click exploration, or SQL, Omni enables fast, trusted answers from a governed semantic model. If you’re eager to dive deeper into industry insights, check out ***The Stacked Data Podcast*** for conversations with industry leaders: Listen on: [Spotify](https://open.spotify.com/show/24fIpekn8WfRDZsVHNcf7Q) [Youtube](https://www.youtube.com/@CognifySearch) or [Apple Podcast](https://podcasts.apple.com/us/podcast/the-stacked-data-podcast/id1700301417) Your feedback is so valuable to us, we'd love to hear from you to help us continue to improve, [Feedback Form here](https://cognifysearch.com/the-london-analytics-engineering-meet-up-feedback-form/) **No-Show Policy**: * If you miss **2 consecutive events** or **2 out of 3 events**, you wont be able to attend the next event. We hope you understand this is to keep things fair for venues and other attendees.

***[We're leaving Meetup! Going forward, tickets on Meetup will be limited. We encourage you to register via our Luma calendar instead, where the full number of tickets will be available.](https://aisignals.org.uk/events)*** **Agenda** 06:00pm - Doors open 06:30pm - Welcome 06:35pm - [Anni Chen](https://www.linkedin.com/in/anni-in-tech/), Developer Evangelist at Twilio, "Building a Real-Time AI Voice Agent" 07:00pm - Break 07:15pm - [Peter Houghton](https://www.linkedin.com/in/peter-houghton-374a36/), Lead Engineer and Researcher at Investigating Software Limited, "Tokens for Fun & Quality and More" ​07:45pm - Lightning Talk: [Anand Rawat](https://www.linkedin.com/in/anand-rawat-b8362891/), Co-Founder at AINAP Ltd, "Agents That Monitor the Pipeline: Autonomous DataOps for AI Systems" 09:00pm - Wrap up and social at The Bricklayers Arms **Please note you will be unable to enter the venue before 6.00pm.** RSVPs will close 24 hours before the event, you may be unable to register after this time but you can still watch online. If you can't join us in person you can watch remotely via [our YouTube channel](https://youtube.com/@ai-signals-community). **Our hosts may require that we provide a list of all attendees, please ensure that you register with a name that matches your government issued ID or bank card: if you do not we cannot guarantee you entry to the building.** Please RSVP for the event well in advance if you plan to attend in person and unRSVP if you can no longer attend as limited spaces are available.

**Important:** Register on the [event website](https://www.aicamp.ai/event/eventdetails/W2026041610) is required for admission. **RSVP on meetup is turned off** Welcome to the AI meetup in London, in collaboration with Snowflake. Join us for deep dive tech talks on AI, GenAI, LLMs and Agents, hands-on experiences on code labs, workshops, and networking with speakers and fellow developers. **Agenda:** \* 6:00pm\~6:30pm: Checkin and Networking \* 6:30pm\~6:45pm: Welcome/community update \* 6:45pm\~8:30pm: Tech talks and Q&A \* 8:30pm\~9:30pm: Open discussion & Mixer **Speakers/Topics:** Stay tuned as we are updating speakers and schedules. If you have a keen interest in speaking to our community, we invite you to submit topics for consideration: [Submit Topics](https://forms.gle/JkMt91CZRtoJBSFUA) **Venue:** Snowflake, 3 Crown Pl, London EC2A 4EB, United Kingdom. **Sponsors:** We are actively seeking sponsors to support AI developers community. Whether it is by offering venue spaces, providing food, or cash sponsorship. Sponsors will not only speak at the meetups, receive prominent recognition, but also gain exposure to our extensive membership base of 20,000+ AI developers in London and 500K+ worldwide.

**Welcome to DSF Sandbox Sessions!** Top tech talks and masterclasses from the best in the industry. Every month, and completely free. The catch? There isn’t one. Just a monthly dose of epic content to power up your data passion! **Event details** 📆 **Date:** Tuesday 14th April 2026 ⏰ **Time:** 6:00 – 9:30 PM BST 💡 **Topic:** **Signals, Systems, and Scams: Deconstructing the Future of Financial Intelligence** 🗣️ **Speakers:** Kristjan Erik Liive, Volodymyr Panov, Baran Koseoglu, Zoltan Szopory, Vera Shishkina, Aaron Wilson, Mohammed Topiwalla [Sign up for this event by clicking here!](https://datasciencefestival.com/session/wise-sandbox-session/) As global financial platforms evolve, the “Trust Gap” becomes an engineering challenge. Scaling a product to millions of users requires more than just better models—it requires a fundamental shift from manual heuristics to automated, high-fidelity intelligence. Join Wise for an exclusive Sandbox Session designed for senior data scientists and engineers. We’re moving beyond the basics of model training to explore the “Last Mile” of production ML: the infrastructure of compliance, the democratisation of optimization, and the transition to foundational representation learning. Through three practitioner-led deep dives and a collaborative product-data science panel, we will deconstruct how Wise builds resilient financial infrastructure where performance and safety are never a zero-sum game. What we’ll explore: • The GenAI Reality Check: Moving LLM automations from “cool demo” to “compliant production” in highly regulated spaces. • Decoupling Optimization: How we built “Threshold UI” to empower non-experts to tune model performance across hundreds of cohorts without a single code change. • Beyond Velocity: Replacing hand-crafted features with User Event Transformers to capture the deep behavioral context that traditional tabular data misses. • The Co-Design Philosophy: Why the future of fraud prevention isn’t just a better algorithm, but a tighter feedback loop between Product and Data Science. Food, drinks, and networking with fellow practitioners will follow throughout the evening. Check out the full session details below! **Please note: Due to high demand and limited capacity, tickets for this event will be allocated via a random ballot. Submitting an application does not guarantee entry. Successful applicants will be notified throughout March and early April. If you have not received confirmation by April 9th, this means your ballot application was not selected on this occasion.** **Talk 1: Evolution of GenAI: Building Compliant LLM Automations at Wise** **Speakers:** Kristjan Erik Liive, Senior Data Scientist & Volodymyr Panov, Senior Data Scientist. **Abstract:** Evolution of GenAI applications in servicing tasks at Wise. We will share examples, discuss architectures and challenges of building LLM-based automations in compliance-heavy space. We will also present our vision and key opportunity areas in further augmentation and automation. **Key takeaways:** Practical examples of scoping and implementing LLM-based solutions. **Talk 2: On the Threshold of Greatness: Democratizing Model Optimization at Wise** **Speakers:** Baran Köseoğlu, Lead Data Scientist & Zoltán Szopory, Staff Software Engineer. **Abstract:** This session will talk about machine learning model threshold optimization across hundreds of customer cohorts. Traditionally, optimizing these thresholds has been a complex, time-consuming task, often relegated to highly technical experts. At Wise, we faced the challenge of managing diverse customer segments, each with unique risk profiles and compliance mandates and as a solution we developed Threshold UI we will talk about more in the session. **Key takeaways:** Boost your machine learning model performance without changing any configuration in your training pipeline. **Talk 3: More Than Meets the Eye: Transforming User Events into Deep Context** **Speaker:** Vera Shishkina, Staff Data Scientist. **Abstract:** Moving from purely manual feature engineering to representation learning. This session covers the technical POC of a User Events Transformer – a foundational model designed to produce customer embeddings that augment traditional tabular features. We will discuss the proposed architecture, the challenges of building temporal data pipelines, and our vision for using these embeddings to boost performance in domains like scam prediction. **Key takeaways:** How learned embeddings provide deep context that traditional “velocity” features often miss. **Talk 4: Panel Discussion – Mind & Machine: How Product and DS Co-Design the Future of Trust** **Panellists:** Aaron Wilson, Fraud and Victim Prevention Product Lead & Mohammed Topiwalla, Fraud and Victim Prevention Data Science Lead. **Abstract:** Fireside chat to understand how DS and Product work hand in hand to keep wise safe. **Key takeaways:** How do you find the middle ground between business growth and risk precision? What is the future of DS in fraud prevention? **Schedule:** **6:00 PM** – Doors open – networking with food and refreshments **6:45 PM** – Intro **6:50 PM** – Talk 1 (20 minutes + 5 minute Q&A) **7:15 PM** – Talk 2 (20 minutes + 5 minute Q&A) **7:40 PM** – Comfort break **7:50 PM** – Talk 3 (20 minutes + 5 minute Q&A) **8:15 PM** – Talk 4 (30 minutes) **8:45 PM** – Networking with refreshments **9:30 PM** – Event close **Registering for the event:** Click the 'Sign up here!' button on the specific event page following the link below. Once you have completed the registration form, you will be emailed a link to join the webinar. You will also receive a reminder link one week, one day and one hour prior to the event. **PLEASE NOTE: Clicking 'attend' on Meetup does not register you for the event. You will need to register for the event on the link provided below to receive a joining link. If you do not, you will not be able to join the event.** **[Click here to sign up for this specific event](https://datasciencefestival.com/session/wise-sandbox-session/)** Please note the time zone when you book this event.

Register: [https://luma.com/z5aztkqh](https://luma.com/z5aztkqh) Calling all developer and graph enthusiasts for an evening of delve into the nuts and bolts of constructing memory-enabled applications that perform at scale. ​**Speakers:** 1. ​**[Aga Kopytko](https://www.linkedin.com/in/akopytko/)**, CTO **[Smabbler](https://www.smabbler.com/)** - *Life-long hypergraph memory* 2. ​**[Yusuf Abdulle](https://www.linkedin.com/in/yusufab/),** PhD **[King's College London](https://www.drive-health.org.uk/) -** *Knowledge graphs and LLMs in rare diseases* 3. ​***[Sefik Serengil](https://www.linkedin.com/in/serengil/),*** *Senior Software Engineer,* ***[Neo4j ](https://neo4j.com/)****\- LLMs can be terrible interns \- but GraphRAG and tools turn them into stars* 4. ​***[Ovidiu Serban](https://profiles.imperial.ac.uk/o.serban),*** *Research Fellow,* **[Imperial College London](https://profiles.imperial.ac.uk/o.serban) -** *How ready are we for Temporal Knowledge Graphs?*

🎉 Come along to the London Scala Talks! 🎉 In this event you'll hear from Haoyi Li, Martin Durchov and Adam Deegan. **Agenda** 6:00pm - 🥤 Doors open. Come along and grab a drink! 6:35pm - 🗣️ Introduction 6:40pm - 🗣️ Haoyi Li: Scripting on the JVM with Scala 7:20pm - 🍕 Intermission: Join us for some free food and drinks! Vegan, vegetarian options are provided. Let us know if you'd like something special - we'd be happy to accommodate. 7:50pm - 🗣️ Martin Durchov: ScalaMeta: Treating Scala code as data 8:10pm - 🗣️ Adam Deegan: Practical Java Interop for Scala Effect Systems 8:30pm - 🥤 Socialising: Grab a drink and let's discuss the talks. 9:00pm - 🍻 Join us in a pub to discuss the talks! 🌐 **This event may have a live stream** Watch this space for more details. **🗣️ Haoyi Li: Scripting on the JVM with Scala** This talk will explore the use of Scala as a scripting language, replacing the Bash and Python scripts common throughout the industry. ⭐ Haoyi Li ⭐ Li Haoyi graduated from MIT with a degree in Computer Science and Engineering, and since then has been a major contributor to the open source community. His projects have over 10,000 stars on Github, and are downloaded over 20,000,000 times a month. Haoyi professionally built distributed backend systems, programming languages, high-performance web applications, and much more. **🗣️ Martin Durchov: ScalaMeta: Treating Scala code as data** Scala source code is usually something we write and hand off to the compiler. But what if we could parse it, inspect it, build it, and transform it all from regular Scala code? ScalaMeta is the metaprogramming library that makes this possible, and it underpins a lot of modern Scala tooling ecosystems: Scalafmt, Scalafix, and Metals are all built on it. In this talk we'll look at what ScalaMeta is, how its AST models Scala programs, and the core operations it provides: parsing, quasiquotes, tree traversal and more. We'll then turn to how we use it at Quantexa, where it powers code generation for our clients. Along the way we'll cover practical patterns that make code generation manageable at scale, and the rough edges you should know about before adopting it yourself. ⭐ Martin Durchov ⭐ I graduated from UCL in 2019 with a MSci in Theoretic Physics and started work in TxOdds, a small company focused on ultra-fast data streaming and processing, where I first encountered Scala, working with Typelevel libraries. Since January 2025 I have been working at Quantexa in the team responsible for data ingestion and processing also relying heavily on the Scala functional libraries and ScalaMeta. **🗣️ Adam Deegan: Practical Java Interop for Scala Effect Systems** Interfacing with a highly autonomous Java library in a functional manner is difficult. In this talk we'll explore the ways in which we've approached this; issues we found along the way; and the trade-offs between purity and pragmatism when there's a runtime which isn't yours to control. ⭐ Adam Deegan ⭐ Adam Deegan graduated from the University of Bristol with a degree in Computer Science in 2021 and has worked at Quantexa ever since. He started off as a Data Engineer and moved into software engineering a couple of years ago, working on the addition of a case management capability. His first true programming love was making Minecraft mods. ———————————————————— 🗣️ 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](https://forms.gle/zv5i9eeto1BsnSwe8) and we'll get you started 🏡 Interested in hosting or supporting us? Please get in touch through [this form](https://forms.gle/3SX3Bm6zHqVodBaMA) 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](https://forms.gle/9PMMorUWgBnbk1mm6) 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.

We're excited to be back and pleased to say this event is being sponsored by [pgMustard](https://pgmustard.com). On the talks front, we have **Anton Borisov and Vlad Bokov** from Fresha who will take us through how they recently upgraded their fleet with zero-downtime. We will then host our first ever debate, on a topic to be determined! WHERE Join us at **Doggett's Coat and Badge on 14 April from 18:30.** PROGRAM 18:30 Welcome 19:00 Swapping the Elephant Without Breaking the Room: Zero-downtime Major PG upgrades in practice (Anton Borisov and Vlad Bokov, Fresha) - abstract below 19:45 Sandwiches and bar snacks (paid for by our sponsor) 20:00 Debate — topic TBD ABSTRACT **Swapping the Elephant Without Breaking the Room: Zero-downtime Major PG upgrades in practice** Upgrading PostgreSQL across hundreds of production databases without downtime sounds impossible, especially when logical replication slots, Debezium CDC pipelines, and outbox event streams are in play. At Fresha, we faced exactly that: mission-critical workloads still on PostgreSQL 12, and no safe way to reach 17 without freezing the business. This talk walks through how we designed and automated a blue-green upgrade framework using logical decoding, controlled WAL overlap, and connector orchestration. We’ll dive into how Debezium connectors, replication origins, and PgBouncer pools were coordinated to guarantee continuity for both CDC and outbox topics, with rollback and dry-run modes built in. Attendees will learn practical techniques for: * Orchestrating zero-downtime Postgres major upgrades on RDS or self-managed clusters * Managing replication slots and Debezium connectors safely across clusters * Handling sequence alignment, WAL overlap, and connector state transitions * Designing reversible, testable database cutovers This is a practical session from real production experience: no magic tools, just PostgreSQL internals, Debezium, careful planning, and a few well-placed bash scripts. SPEAKERS **Anton Borisov** architects real-time data systems centered on PostgreSQL. At Fresha, he designs zero-downtime migrations, Debezium-based CDC pipelines, and overall data strategy integrating Postgres with Kafka and Flink. His work spans query planning analysis, partitioning and indexing, autovacuum and bloat optimization, and performance tuning under high-concurrency workloads. He also builds downstream lakehouse integrations with Iceberg, Paimon, and StarRocks. Anton publishes technical deep-dives on PostgreSQL internals, streaming infrastructure, and production reliability at medium.com/@borzoniusy **Vlad Bokov** is a Staff Engineer at Fresha working on systems behind activity feeds and communication between partners and customers. He deals with what breaks at scale: PostgreSQL under heavy write load, WAL bottlenecks, replication issues, Kafka pipelines, and zero-downtime migrations. Most of his work is about making production systems behave: fixing what is slow, unstable, or too expensive, and making trade-offs that hold up under pressure. He works across Snowflake, StarRocks, PostgreSQL, Elasticsearch, and Redis, and is currently exploring newer streaming approaches, including Apache Fluss, for real-world workloads. *** THE OFFICIAL BITS The meet-up abides by [PostgreSQL Code of Conduct](https://www.postgresql.org/about/policies/coc/). Postgres, PostgreSQL and the Slonik Logo are trademarks or [registered trademarks of the PostgreSQL Community Association of Canada](https://www.postgresql.org/about/policies/trademarks/), and used with their permission.

Curious about “vibe coding” but not sure what it actually means? This beginner-friendly talk is about how people are using AI to build websites, apps, automations, and small software projects by describing what they want in plain English. We’ll cover what vibe coding is, what AI is good at, where it falls short, and how to actually use it without getting lost. The goal is not to hype AI as magic — it’s to show how to use it as a practical tool. This session is designed for beginners, curious builders, non-programmers, and developers who want a clearer picture of how to build with AI today. Topics include: * What “vibe coding” means * What AI can help you build * Where AI is useful and where it is unreliable * A simple workflow for building with AI * Prompting tips for better results * Common beginner mistakes to avoid If you’ve ever thought, “I have an idea, but I don’t know how to build it,” this talk is for you. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

We will cover metadata-driven approach to building and operating data pipelines at scale on AWS. Discuss architecture, design trade-offs, and lessons learned from running a unified pipeline across multiple customers using configuration-driven workflows. **Presenter: Dilshad Nasirov** Seasoned Software Architect and cloud practitioner with 20+ years of experience building scalable systems and data platforms. Specializes in AWS, with deep expertise in data lakes, serverless architectures, and real-time data processing. Has led the design and delivery of enterprise-grade solutions across industries, helping organizations improve performance, reduce costs, and unlock data-driven insights. https://www.linkedin.com/in/dilshad-nasirov-4538431/ **CALL FOR SPEAKERS** Learn more: https://www.awscolumbus.com/get-involved/ **THANK YOU** *Leading EDJE* for hosting our meetup! Leading EDJE specializes in helping organizations innovate and solve complex problems. EDJE does this with their "A" player team of professionals using agile methodologies and SCRUM management techniques to give organizations a competitive advantage that sets them apart. Learn more at https://www.leadingedje.com/ **THANK YOU** *Amazon Web Services* for sponsoring pizza! Learn more at https://aws.amazon.com/. **DIRECTIONS** 6515 Longshore Loop, Suite 300 Dublin, OH 43017 (3rd floor) **FREE PARKING** at the Endres Garage across the street, 6540 Riverside Dr, Dublin, OH **Want to sponsor the pizza and/or bar tab for a future meetup?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

The global Azure community is coming together again, and Columbus is officially on the map. View the session lineup and speakers at [Global Azure Columbus 2026](https://coazure.github.io/cbus-global-azure-2026/) On **Saturday, April 18, 2026**, the Azure Columbus Meetup, DevOps Meetup, and Code and Coffee Meetup are hosting our local edition of Global Azure 2026. This is a free, community-driven event packed with learning, networking, and all things Microsoft Azure. Whether you’re building modern cloud-native apps, experimenting with AI agents, deploying containers, automating infrastructure, or just beginning your Azure journey, this event is for you! **What to Expect** * Engaging technical sessions * Real-world Azure architecture & cloud-native patterns * AI, agents, automation, and modern DevOps * Food and drinks (because learning burns calories) * Time to connect with fellow engineers, architects, and cloud enthusiasts **Who Should Attend?** * Software engineers (any language, any stack) * Cloud architects * DevOps engineers * Data professionals * AI explorers * Platform builders * Anyone who loves solving hard problems with great tools If you build, deploy, automate, scale, monitor, or optimize in Azure, you’ll feel right at home. **Why Global Azure?** Global Azure is a worldwide community event where Azure user groups host learning sessions on the same day across the globe. It’s grassroots. It’s technical. It’s practical. And it’s powered by people who genuinely love sharing what they’ve learned. And yes, it’s free to attend!

💓 **Online Speed Dating Built for First Timers – Real Connections, Zero Pressure!** **🔴 MUST READ: RSVP Alone Won't Get You In!** To attend, you must: (1) Click your age group link below, (2) Complete registration, and (3) Finish the personality quiz. Limited spots available – register now before they're gone! **📋 Choose Your Age Range Below to Register:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Cincinnati&groupurlname=network-for-active-local-singles-dating&ar=18-32&face_v=1.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Cincinnati&groupurlname=network-for-active-local-singles-dating&ar=30-46&face_v=1.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Cincinnati&groupurlname=network-for-active-local-singles-dating&ar=40-58&face_v=1.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Cincinnati&groupurlname=network-for-active-local-singles-dating&ar=55+&face_v=1.0) --- 🤝 Tired of swiping with no results? Try real conversations instead! Online speed dating removes all the awkward parts of traditional dating. A friendly host guides you through each round, so all you have to do is show up and be yourself. 🎯 **Perfect for:** - Introverts who shine in one-on-one conversations - First-time speed daters seeking a welcoming, easy experience - First-timers who want to date without the pressure of face-to-face meetings - Busy professionals who value their time and comfort **How It Works** 1. **Sign Up** – Click the registration link for your age bracket above. 2. **Finish the Short Personality Assessment** – This helps us optimise your matches for the evening. 3. **Connect on Zoom** – No setup needed. Just click the link and you're in! 4. **Meet Your Matches** – Rotate through fun one-on-one rounds with Cincinnati singles who share your vibe. 5. **Discover Your Matches** – We'll notify you of any mutual interest after the event. The rest is up to you! **Event Details** - **Format:** Hosted live on Zoom – guided, fun, and stress-free - **Location:** No venue needed – just a comfy seat and a good internet connection - **Host:** Your personal guide through the evening – friendly, encouraging, and fun - **Vibe:** Light-hearted, easy-going speed dates with open-minded Cincinnati singles - **Accessibility:** Join from any device – laptop, tablet, or phone - **Duration:** About 60–90 minutes of structured, fun conversations **Frequently Asked Questions** **How long are the conversations?** Each round is a few minutes – long enough to feel a connection, short enough to keep things exciting! **What happens after the event?** We reveal mutual matches after the event. If you both liked each other, we help you connect! --- ✨ The hardest part is clicking register. After that, we make everything easy. See you there! 💘 ✨

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/