Golang

**Welcome back you fine, FINE people!** We do apologise for the two month hiatus, we've missed you terribly! I'm glad to say that, of course, our hearts HAVE GROWN EVEN FONDER for missing you and we couldn't be more excited to see you all at **APRIL GOPHERS @ AUTOGENAI!!!** So come and join us for some food, drinks and top notch (\*aspirational\*) programming chat, or at the very least some chat about the last most interesting thing you made Claude Code do. Top points for "the dishes". As always, a huge thank you to **AutogenAI** for hosting us this month, and **Dexory** for sponsoring the event! ==== 📓 **Agenda**📓 ===== (Certain timings and orders may be subject to change) **6:30pm:** Arrival, Food & Refreshments **6:55pm:** Introduction **7:00pm:** 🗣️ **Joshua Oluikpe - Real-Time Event-Driven Systems in Go: Patterns from Production** Explaining how I was able to utilize gorountines concurrency to improve high throughput in Kafka **7:25pm**: Lightning Talk ⚡ **David Coles - XDP Virtual Server: An eBPF Load Balancer library for Go** We migrated streaming and websites for the UKs largest commercial radio broadcaster to an open-source, Go/Linux based, load balancer **7:40pm:** Raffle and Break **8:00pm: 🗣️** **Rahim Kristopher Afful-Brown - Pass It On** Deep dive into CSP and actors. How it made reasoning with concurrent software easier than locking. Followed my real world examples **8:30pm:** Raffle Winners! **9:00pm:** Pub! ==== 💡 **RSVP Details** 💡 ===== When submitting your RSVP for this event, please be sure to use your **full first name and last name**, as some of our venues require these in order to let you in on the door. Submitting your name as e.g. "John D" won't be enough! We also keep track of no-shows, so **if you can't come, change your RSVP in advance!** ==== 🎉 **Prizes & Discounts!** 🎉 ===== **JetBrains Raffle!** \- We have 3 free JetBrains Product licenses to give away to some of our lucky attendees\! **Ardan Labs Raffle!** \- We're giving away one course license for Ardan Labs' Ultimate Go Bundle\! **Manning Publications Raffle!** \- We're giving away 4 free Go e\-books\! **45% Manning Publications Discount** \- a massive discount provided by the fine people at Manning\! You can also support London Gophers Events by purchasing via our affiliate link [HERE](https://mng.bz/oKqM) \- Use Code "**LGMeetup45**" for 45% off! **GopherConUK Raffle!** \- We're giving away one free ticket\!\!\! **10% GopherConUK Discount** \- The lovely people over at GopherConUK have provided a discount code for [GopherConUK 2026](https://www.gophercon.co.uk/tickets)! At checkout, use code "**GCUK26LGM"** for 10% off! ==== 💡 **Priority Queue** 💡 ===== We reserve 20% of the attendee spots at our events for those who are underrepresented in tech. If they join the waitlist and there is a reserved spot open they will be bumped into going! These spots are reserved until the last Sunday before the event. How do we define underrepresented? We use public surveys done by the tech community such as the ones linked below. https://survey.stackoverflow.co/2022/#section-demographics https://www.jetbrains.com/lp/devecosystem-2022/#gender-and-development ==== [📢](https://emojipedia.org/loudspeaker/) **Become a Speaker!** [📢](https://emojipedia.org/loudspeaker/) ===== Have something to say? We want to listen! We are always looking for new speakers who want to share their adventures with Go and have mentors who can help. You can sign up to be a speaker here: https://gophers.london/apply ==== 🧳**Looking For a New Adventure?** 🧳 ===== On the Gophers Slack (https://gophers.slack.com) there is a **#london-jobs** channel where company and recruiters can post job opportunities. ==== [📞](https://emojipedia.org/telephone-receiver/) **How To Reach Us** [📞](https://emojipedia.org/telephone-receiver/) ===== **Email:** contact@gophers.london **Linkedin:** https://www.linkedin.com/company/london-gophers/ **Twitter / X:** https://x.com/LondonGophers **YouTube:** https://www.youtube.com/c/LondonGophers 📜 **All London Gophers events operate under the Go Community Code of Conduct** \- https://golang\.org/conduct * **Treat everyone with respect and kindness.** * **Be thoughtful in how you communicate.** * **Don’t be destructive or inflammatory.** **Please do not message members without their consent** If you encounter an issue, please mail contact@gophers.london or conduct@golang.org

**Hi JavaScript London,** London's biggest JavaScript meetup is back, and this time we're at NewDay's offices in King's Cross. Grab a slice, grab a drink, and come spend an evening with some of the best JS engineers in the city. 🍕🍻 **Address:** 7 Handyside Street, London, N1C 4DA **Registration** — Please register via Meetup and also via the website, as we need a list of attendees on the night. 👉 [https://www.javascriptlondon.com/](https://www.javascriptlondon.com/) *** **Talks:** **Talk 1:** Whitney, David - Director, Architecture NewDay - **Topic:** Wild Typescript! **Talk 2:** Adib, John - Engineering Manager Zapp **Topic:** The Compound Effect of Guardrails in the Era of AI **Talk 3a:** Khani, Elham - Engineering Manager NewDay **Topic:** Managing the PIP process **Talk 3b:** Rajaratnam, Roger - Staff Engineer NewDay **Topic:** Playwright E2E testing AI skills *** **Full Agenda:** * **6:00 PM**: Doors Open. Grab a pizza slice, sip a beer, and start chatting with other attendees. **6:30 PM**: Welcome remarks by Sam, Richard and Justin **6:35 PM:** First talk **7:05 PM:** Toilet break **7:15 PM:** Second talk **7:45 PM:** Third talk **8:15 PM:** Closing remarks and an optional pub visit! *** **Directions to NewDay:** Closest station: King's Cross St. Pancras *** **Sponsor: NewDay** NewDay is a London-based consumer credit technology company on a mission to help people move forward with credit. Founded in 2000 and headquartered in King's Cross, NewDay operates a highly scalable in-house digital platform that powers credit products for close to six million UK customers — from their own brands like Aqua, Fluid, and Bip (the UK's first digital-only credit card) to co-branded partnerships with household names including John Lewis & Partners, Amazon, and AO. What sets NewDay apart is its proprietary credit decisioning capability, which allows it to responsibly say yes to customers often underserved by traditional high street banks. Over the past year the business has grown gross receivables to over £5 billion — up 21% year on year — and reported a 30% increase in underlying profit before tax, underpinned by a string of major deals including the acquisition of the Argos Financial Services card portfolio for £754 million in early 2025. Backed by Cinven and CVC, and with KKR joining as a new strategic partner in 2025, NewDay is one of the UK's most ambitious and fast-growing fintech businesses — combining deep data science, modern engineering, and a clear social purpose to reshape the future of consumer credit.

**BOOK HERE**: https://sportas.co.uk/games/47109 **Game Description:** Drills and Games for Lower Intermediate level on a smaller court. Led by a club's coach and open to 6-8 club members and 6 players from Sportas. **Rules** Respect all participants and have fun! Everyone plays all the time, no waiting around.

Hey everyone! I’m hosting a FREE relaxed language exchange evening - a space to practice languages, meet new people, and just have a good conversation. Whether you’re a native speaker or just learning, everyone’s welcome 🙂 **How it works:** 🏷️ Grab a sticker with the languages you speak/want to practice 🗣️ Join a group and start chatting 🔄 Feel free to move around and meet different people No pressure, no formal structure - just easy conversations and a friendly atmosphere. 📍 Americano Classico, 176 Fleet St, London EC4A 2EN 📅 29 April (and every Wednesday) ⏰ From 6pm Usually around 10-15 people join, so it’s easy to talk to everyone and make real connections. Please sign up via link below if you're coming! https://form.jotform.com/260367618502356 Bring your curiosity (and maybe a friend) 🌎

## Details Welcome to the DevSecOps London Gathering April Event on Wednesday 29 April! We bring you two speakers, as well as the usual conversations, pizza and beer! 📍 **Hosted at Civo Tech Junction, 1st Floor, 32-37 Cowper Street, London, EC2A 4AW** 📅 **Wednesday, 29 April** 🕕 **6:00–8:00 PM** ## **Talk** **Abstracts:** **Talk 1** APIs are the hidden infrastructure that connects everything, like the plumbing of the modern age – though much like plumbing, **you don't realise you've got a problem until it’s too late**… This is doubly true for the AI era. It doesn't matter if you're orchestrating agents through OpenClaw, Warcraft 3 or MCP – **APIs remain the way AI escapes the bounds of the chat box into the real world**. But this new modality of APIs unfortunately didn't ship with more security. We’ve spent years lumping APIs into “web security” and calling it a day. As AI adoption accelerates, **API abuse is becoming the easiest way to escalate impact**: broken object-level auth, excessive data exposure, workflow manipulation, and agent overreach. **So what actually matters and how are attackers exploiting it?** Join **Dr Katie Paxton-Fear** as we explore API hacking as its own discipline, in the AI era. No generic web security theory. Instead, you’ll walk away understanding: * What makes **APIs uniquely vulnerable** * The bugs attackers **actually look for** * How **AI-driven workflows** expand impact * How to **test your own APIs effectively** **Katie's bio** Dr Katie Paxton-Fear is a hacker and security advocate at Semgrep – she used to make applications, and now she breaks them. A former developer, she sees security vulnerabilities as small mistakes by overstressed developers, and wants to find ways to make their life easier while making sure that we are all secure. She's found vulnerabilities in everything from the military to AI, in her own words 'without really knowing what I was doing'. She is passionate about giving back to the security community, delivering security training, writing and sharing her security research, and also through her YouTube channel – where she teaches almost 100,000 subscribers how to follow in her footsteps! She combines easy-to-understand explanations with key technical details, turning security into something everyone can understand and engage with. She's been featured as an expert in the Wall Street Journal, BBC News, ZDNet, The Daily Swig, Vodafone and more. **Talk 2** APIs are the hidden infrastructure powering modern cloud systems connecting services, platforms, and now increasingly, AI agents. In the AI era, APIs are no longer just consumed by users, they're being called, chained, and orchestrated by autonomous systems at scale. Whether it's agent workflows, microservices, or cloud-native platforms, APIs are the bridge between intelligent systems and real-world actions. However, while adoption has accelerated, security has not kept pace. Many organisations still treat API security as an extension of traditional web security, overlooking critical gaps introduced through architecture, identity design, and DevSecOps practices. So where are things actually going wrong? Join me to explore how modern cloud architectures unintentionally expose APIs from misconfigured gateways and over-permissioned identities to weak trust boundaries across services. The session will also examine how AI-driven workflows amplify these risks, turning small design flaws into large-scale vulnerabilities. **Sriram's Bio** Sriram Kumar is a Solution Designer with multiple years of experience in cloud and DevOps engineering, specialising in Microsoft Azure. He has a strong background in designing and securing cloud-native architectures, including API Management, identity-driven access, and enterprise-scale infrastructure. Sriram has worked across multiple organisations delivering secure, scalable solutions, with hands-on experience in Cloud networking, CI/CD pipelines, and DevSecOps practices. His work often involves solving real-world challenges around API security, cloud governance, and system resilience in complex environments. Beyond his professional work, Sriram actively contributes to the community through NGO initiatives and mentoring students, supporting them in building careers in cloud and technology. With a practical, architecture-first approach, Sriram focuses on bridging the gap between development, operations, and security, helping teams build systems that are not only functional but secure by design.

This a BSL practice group for level 1 students and above. We will be meeting at the national theatre in southbank

After a short break for March we're back at the end of April with 2 of London's well known tech names, Motorway and Omnea! Join us, \*\*[London.js,**](http://london.js,%2A%2A/) on **Thursday 30th April** from **6pm-8.30pm** hosted at **Motorway**, sponsored by **Omnea** 📣 Register now to avoid disappointment as [London.js](http://london.js/) access is limited and spaces fill fast! Doors open at 6:00pm, talks will start at 6:30pm, ends 8.30pm ish. 📍Address - Motorway, 12 Wells Mews, London W1T 3HE 🎤 **Our** **April Talks** 🎤 **Ed Cooper – Senior Engineer, Omnea** **How to Tame Your AI Feature** *"Shipping an AI feature that demos well is easy; shipping one enterprise users trust with six-figure decisions is another story. Ed will walk through the levers they pulled to get two AI features from "it works" to "we trust it" at Omnea — with some surprising learnings along the way"* **Ryan Cormack Principal Engineer & Jamie Toloui Senior Back End Engineer - Motorway** **APIs in the Fastlane - How Motorway are building new, and evolving existing APIs with a design first approach** *"Learn how Motorway are building new, and evolving existing, APIs across their entire platform. They follow a design first approach ensuring our documentation, SDKs and implementation are always kept in sync by leveraging Smithy to document our entire system. We'll look at real world examples of APIs handling millions of requests in a well documented, defined and type safe way so it always does exactly what it says on the tin."* **Johannes Stein - Head of Engineering & CTO** **What I've learned building a JavaScript engine with AI** "What if we create a JavaScript engine without the bloat of backward compatibility? Focusing on modern language features such as let/const, arrow functions, zero dynamic code execution and TypeScript compatibility. This talk covers the journey of creating a new JavaScript engine and runtime, detailing what went well and the lessons learned along the way." **Our Hosts** **🚗 Motorway 🚗** Motorway is transforming the used car market through a data-driven digital marketplace that connects private sellers with thousands of dealers, enabling instant valuations and competitive bidding. Join us in their amazing HQ in central London (off Oxford Street) **Our sponsor** 🚀 **Omnea** 🚀 One of London's fastest growing series B backed start ups. Omnea is rebuilding procurement from the ground up with an AI powered platform that orchestrates workflows across finance, legal and IT, automating intake, approvals and supplier onboarding while creating a unified source of truth for spend. Come to **London.JS** & learn more about the changing face of JavaScript across all industry landscapes. We're a very inclusive meet-up representing a diverse community of awesome engineers 🤖🌈🦄 About the **London.JS** organisers... **James McLeod**, Open Source Program Lead, NatWest Group [https://www.linkedin.com/in/jamesmcleod/](https://www.linkedin.com/in/jamesmcleod/) **Jordan Potts**, Head of Technology, Albany Growth [https://www.linkedin.com/in/jordan-potts-albany/](https://www.linkedin.com/in/jordan-potts-sr2/) **Will Laing**, Co-Founder, Plan:it [https://www.linkedin.com/in/willhlaing/](https://www.linkedin.com/in/willhlaing/) [https://weareplanit.com/](http://www.weareplanit.com/) *🍕🥤 **Refreshments*** * A variety of food & drink will be served. We will endeavour to cater for allergies & dietary requirements. This won't just be pizza & beer either... ***Things to note*** * A desire to explore JavaScript from different points of view is absolutely recommended * Feel free to bring your JS projects along * All engineering levels are welcome * Please RSVP to secure a place * Please ask plus 1's to sign up to the group & RSVP * Spaces are limited so techies will get priority \-\-\-\-\-\-\-\-\-\-\- • Code of conduct: [http://confcodeofconduct.com](https://confcodeofconduct.com/) \-\-\-\-\-\-\-\-\-\-\-

**Important - Please Read** LIMITED SPACES - **You must have a confirmed place to attend this event.** Welcome to London's Highest Rated International Languages Exchange group with over 1600 reviews rated 5 stars ⭐⭐⭐⭐⭐ 🇬🇧🇪🇸🇫🇷🇯🇵🇮🇹🇩🇪🇮🇳🇧🇷🇰🇷🇨🇳🇪🇬🇭🇰🇺🇦🇺🇸🇹🇷🇹🇼🇷🇺🇵🇱 To learn more about us and our community visit [www.languages.london](https://www.languages.london/) WHEN & WHERE Join us on Friday for our global language exchange from 6pm. The venue is The Craft Beer Co. in Clerkenwell, a really friendly pub with a great selection of drinks (especially beers!) including non-alcoholic options and **we have the whole first floor space exclusively for our event!** The venue has excellent access to public transport via, tube, train and bus. HOW WE DO IT It's simple .... \ ~When you arrive please collect your personalised language badge from us, **BEFORE** you order your drinks. We'll be waiting to give you a warm welcome 😃 \~ Please wear your badge during the event and return it before you leave. \ ~Start meeting the community and having fun, lots of fun! Confirm your place to attend. There's a small fee of £2, which you can pay when you arrive. Please buy something from the bar to support the venue, who kindly offer us a dedicated space. 🇲🇽🇻🇳🇧🇬🇵🇸🇸🇪🇮🇱🇦🇺🇨🇦🇳🇱🇨🇴🇭🇺🇿🇦🇹🇭🇵🇪🇧🇴🇳🇬🇪🇬🇳🇿🇨🇭 **WHO** Languages in London events are organised for our community - being social, making new friends, building cultural bridges and always very relaxed. Our weekly events in London have the highest number of languages and countries represented. Note - This is **not** a dating event. Our events are open to Internationals, Locals, Expats, Students, Travellers..... Everyone! This is the event for a truly global community and for citizens from around the World 🌎 Is this the Intercambio you've been looking for? Want to practice your ingles, espanol , francais, italiano, Deutsch, portugues or other European languages? Asian languages ? Or maybe prefer to only speak English, that's just fine. **All languages and all fluency levels are welcome** Spread the love, bring your family, friends and colleagues 💙 The creator and organiser of **Languages in London - Girish**, will always be visible at the event and there to support you and help with introductions, if you prefer. These are real events with real people. We aren't one of those groups that fill our events with fictitious attendees👻 We want to remain the **BEST** language events group in London, being the biggest isn't our focus. **No-shows at our events are always removed from the group.** **Inactive members are also regularly removed from our group.** **LANGUAGES** Here's a selection of some of the languages that our community speak or have been practicing English, Spanish (incl Latin American), French, Italian, Portuguese (incl Brazilian), German, Japanese, Chinese (Mandarin & Cantonese), Russian, Korean, Hindi, Turkish, Arabic, Ukrainian, Polish, Hebrew, Swedish, Bulgarian, Vietnamese, Hungarian, Bengali, Dutch, Catalan, Farsi, Greek, Urdu, Welsh, Romanian, Norwegian, Czech, Slovak, Estonian, Danish, Finnish, Turkmen, Latvian, Lithuanian, Nepali, Yoruba, Filipino, Thai, Albanian, Croatian, Serbian, Ebo, Gaelic, Icelandic, Afrikaans, Tamazight, Tagalog, Creole, Malagasy, Mongolian, Tok Pisin and more... you get the idea! 🇷🇴🇬🇹🇨🇿🇳🇴🇩🇰🇫🇮🇨🇾🇺🇾🇪🇬🇧🇬🇦🇷🇰🇪🇱🇰🇲🇦🇹🇳🇩🇿🇸🇬🇲🇾 **SUSTAINABLE** 🌎🌳 Like you, we really care about our planet. We never use paper stickers or wristbands as they can't be reused or recycled and can even damage your clothing ☹️ The Solution? Our personalised and completely reusable Languages in London badges! 👍 So, please make sure you return your badge to us, before you leave the event. We'll sanitise it (anti bacterial & disinfectant cleaners) and use it again & again & again. Thanks for helping us do the right thing and keep our costs down🙏 **SAFE SPACE FOR EVERYONE** 👮‍♂️ We don't tolerate prejudice or harassment of any kind, at any time. Be polite and respectful to everyone else and they will reciprocate. Let's keep the space safe, welcoming for everyone and free of any political agendas. Please report any concerns to the Organiser immediately. Please look after your belongings, the venue is a public place. We may take photos or video at the event for future promotional use. Let us know if you'd rather not be included, we respect your choice 📸 **SPREAD THE WORD** 🗣️💬 If you enjoy our events, please tell your friends and colleagues and help us grow **your** community, thank you ♥️ Join our community - [www.languages.london](https://www.languages.london/) We're looking forward to welcoming you at Languages in London 😊👋 🇲🇰🇳🇵🇧🇩🇵🇭🇦🇪🇦🇱🇧🇪🇮🇪🇲🇹🇰🇿🇱🇦🇯🇴🇱🇹🇱🇻🇪🇪🇰🇭🇨🇱🇲🇳🇨🇺

Be part of the next Londroid event on Thursday, 30 April 2026, hosted by Zopa Bank. Join us for an evening of Android talks, conversation and community. Expect engaging sessions, the chance to meet others working in Android, and an opportunity to hear from the Zopa team. After the event, we’ll head to Crate for post-event drinks and further conversation. Please note that guests will need to bring a form of ID to access the venue. **Tickets:** We have 150 tickets available. Don’t miss out. Follow us on Twitter and LinkedIn for updates. **Schedule:** 18:00 – Doors open & registration 18:30 – Welcome from Londroid and Zopa Bank 18:45 – Efthymios Kontis – A Nav3 Story: Navigation 3 in Production 19:30 – Shubhangi Goyal – You're Already Using AI on Mobile : What you know and what you have not realised 20:15 – Q&A and socialising 20:30 – Drinks at Crate **Venue:** Zopa Bank, Level 12, 20 Water St, Canary Wharf Estate, London E14 5GX **Our Hosts and Sponsors** Zopa Bank Zopa Bank is a digital bank offering a range of financial products designed to make money management simpler and more transparent for its customers. Novoda Novoda is a digital product agency dedicated to building high-quality software. Their team of engineers helps companies scale, modernise and improve their development practices to deliver exceptional digital experiences. Join us for an evening of learning, collaboration and community. See you there.

We meet to learn and practice American Sign Language and to grow our familiarity with Deaf culture. Facilitated by hearing folks (with a connection to a professional interpreter) using Deaf-created content. People of all ASL skill levels are welcome! As we learn, we hope to connect more with the Deaf community in Central Ohio. Join us as you're able! Come regularly or just once - whatever you're looking for! Each meetup will explore different topics related to ASL/Deaf culture, and will feature time to practice conversation with one another. Just bring yourself and a willingness to learn!

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

We meet at lunch each week and each meeting follows a fairly organized agenda. First all participants pass their business cards around. Then each member and guest is invited to give a one-minute overview of their company and what is a perfect referral for the week. We always have a 10 minute presentation from one of the members about their business in more detail. And finally we pass referrals. You're welcome to visit. Nobody is ever put on the spot. Bring plenty of cards!

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com