Coding Dojos

**We're back at Salisbury House for our summer London Airflow Meetup! Join fellow members of the data engineering community for an evening of engaging talks, great food and drinks, and exclusive swag!** **PRESENTATIONS** ***Talk #1: The Orchestration Layer: A Blueprint for Scaling Dynamic DAGs with Integrated Data Quality Gates*** * **Speaker**: [Vasudev Maduri](https://www.linkedin.com/in/vasudevmaduri/), Staff Data Engineer, Admiral Group Plc Ensuring high-quality data, accuracy, completeness, and schema validity is essential for building data trust. However, scaling data quality checks across diverse datasets often leads to duplicated boilerplate Python code, human error, and a massive bottleneck for Data Engineering teams. In this talk, we’ll explore how to shift data quality from a backlog of tech debt into an automated, self-serve developer experience directly tied to Airflow. We will demonstrate how to build a multi-faceted data observability framework that empowers end-user teams to define their own DQ rules without writing any Python code. By hiding complex Airflow code, users simply select their parameters—YAML configurations that instantly translate into fully dynamic, end-to-end DAGs, including in-flight data quality gates. The core of this session focuses on the technical implementation of integrated DQ checks that live directly *inside* the generated pipelines. You’ll learn how this metadata-driven approach enables a "shift-left" strategy for data observability, automatically enforcing data contracts and routing alerts without manual engineering intervention. ***Talk #2: Self-healing Data Pipelines in Airflow*** * **Speaker**: [Nilesh Khandalkar](https://www.linkedin.com/in/nileshskhandalkar/), Senior Manager, Capgemini Modern data pipelines remain largely reactive—failures trigger alerts, manual retries, and ongoing operational overhead for engineering teams. As systems scale, this approach introduces fragility, delays, and growing complexity in maintaining reliable workflows. This session explores how to design self-healing data pipelines in Airflow using practical patterns such as intelligent retries, conditional branching, and targeted recovery mechanisms. Real-world failure scenarios are used to illustrate how pipelines can detect issues, trigger remediation steps, and resume execution without full restarts or human intervention. The session also looks ahead to how AI-assisted anomaly detection can further enhance these systems by identifying unexpected patterns and enabling more proactive, resilient data workflows. ***Talk #3: What We Got Right (and Wrong) Building a 50-Source Data Platform on Airflow*** * **Speaker**: [Arnaud Caldow](https://www.linkedin.com/in/arnaud-caldow-384423142/), Senior Data Engineer at Collibra Collibra helps enterprises govern their data, but how does Collibra's own data team manage the data that powers the business? The answer is an Airflow-based platform that stitches together dlt, dbt, Kubernetes and Collibra's own product for governance -- all orchestrated through 87 DAGs serving 12 business domains. This talk traces a data point's journey through the stack: from API extraction via dlt pipelines running inside KubernetesPodOperator pods, through a layered dbt architecture where platform engineers standardize data and analysts build business models on top, into analytics outputs that serve multiple business teams, and finally back into Collibra Data Governance via reverse-ETL integration DAGs. Along the way, I'll share the patterns that emerged from operating this at scale: how we evolved from one-off custom pipelines to a reproducible framework that's documented well enough for AI subagents (or a new hire) to generate models from scratch, how our own Pod Operators let us test feature branches on shared environments, and how we're leveraging that same mechanism to migrate from Redshift to BigQuery (and from Airflow 2 to Airflow 3) without downtime. Behind the scenes, a 1Password-backed pipeline diffs credential hashes nightly, catching rotations before they break a DAG. **AGENDA** * **5:30-6 PM:** Arrivals, networking, food & drinks * **6-7:45PM:** Presentations * **7:45-8PM:** Networking

**NOTE: PLEASE READ THE DESCRIPTION BELOW FOR REGISTRATION:** **OWASP AI Security Summit** is taking place at **Infosecurity Europe 2026** on **Thursday, 4 June 2026 at ExCeL London** **Location inside Excel:** South Gallery Rooms 18 & 19 This summit brings together security leaders, researchers, and enterprise practitioners to discuss the latest developments in GenAI and Agentic AI security — including emerging threats, governance, incident response, real-world implementation lessons, and the evolving OWASP guidance shaping the industry. Sample sessions include: • The State of GenAI: Key Trends and OWASP GenAI Security Project • Beyond the Top 10: The Next Chapter of the Agentic Security Initiative • Agentic Security at Microsoft: Strategy, Implementation, and Lessons Learned • Implementing the Agentic Top 10 at AWS • 22 Seconds to Contain: Rewriting IR for Agents • Top 10 for LLMs Update • No Room for Hype: Securing Agentic AI Inside a UK Bank Featured speakers and contributors include OWASP GenAI Security initiative leaders and experts from: Microsoft, AWS, Lloyds Banking Group, OWASP, Deep Cyber, Zenity, and more. **Location inside Excel:** South Gallery Rooms 18 & 19 **REGISTER TO ATTEND HERE** **Register for Infosecurity Europe to attend the summit -** use promo code **OWASP** for a free pass: [https://www.infosecurityeurope.com/en-gb/visit/owasp-gen-ai-security-summit.html](https://www.infosecurityeurope.com/en-gb/visit/owasp-gen-ai-security-summit.html)

**PLEASE VISIT THE WEBSITE TO CONFIRM SESSION DETAILS AND LET US KNOW YOU PLAN TO ATTEND. THIS IS MANDATORY.** **Want to do something useful with your exercise? GoodGym is no ordinary gym. We're a group of people who get fit by doing good - helping out local charities and community groups with physical jobs like shifting compost and planting trees.** **📍 We meet at** **Westbury Community Garden, St Awdry's Road, Barking, IG11 7QD** **at 6:15pm.** **🏃‍♂️ At 6:30pm we'll run, walk or cycle to do a 30-40 minute task.** **🏃‍♂️ Then we'll head back to where we started by 8:15pm, do some stretches and maybe grab a beverage?** It's FREE. It's fun. It's fulfilling. And we're a very friendly bunch. 🍇 — **BOOK ONTO THE SESSION** **To come to the session click here:** https://www.goodgym.org/v3/sessions **You will need to confirm your attendance on the GoodGym website** (this includes creating an account with us if you haven’t already - it only takes a few mins). The link above takes you to the session listings in your area - if this session doesn’t fit your schedule, you may find something that does so check it out. p.s. GoodGym is a charity and you will be asked whether you’d like to donate when first creating an account. The choice is yours and does not affect your ability to attend a session. — **FAQ** Not sure you'll keep up? GoodGym is for everyone (18+). Whether you've never run before, or are chasing a marathon PB, you are 100% welcome. We always have a back-marker so no one gets left behind. 70% of GoodGym members start as non-runners so if you're new to this kind of thing you will be supported by people who are all on the same journey. 👍 What do I need to wear? Most of us wear gym/running gear. Make sure you're prepared for the weather. Don't feel like you're fit enough? Our tasks are simple and fun. There are easy jobs as well as more challenging things for those who want a workout! The choice is always yours. Do I need to bring anything? Gardening gloves are really useful for a lot of GoodGym tasks. And a head torch too if it’s likely to get dark. Please bring some if you can but there’s no requirement 🧤💡🧤 What is GoodGym? We're a (really lovely) group of people who use our energy to make a difference in our local community (and in communities across the UK!). We often meet on a weeknight, at least once a week, for a session to do good and get fit. We'd love you to come and join us. Any questions, just pop a comment below or send me a message. Find out everything you need to know at goodgym.org

You can journal your thoughts, emotions, experiences… You can write a sentence, a paragraph, a page… But journaling doesn’t have to be a chore, it can be enjoyable and enlightening. It can deepen your self-awareness, help you gain clarity and add a sense of calm. Whether you’ve never tried it or you’ve done a spot of journaling in the past and fallen out of practice, join us to: * explore the why, the how and the art of journaling * get inspired to pick up your pen and start journaling **This is a free in-person 60-minute seminar.** **If you would like to make a voluntary donation, please click** [here.](https://www.innerspace.org.uk/donations/ "https://www.innerspace.org.uk/donations/") \* I consent to my submitted data being collected and stored. We will process your personal data in line with the GDPR requirements and always store it securely and use it only for the purpose for which it has been collected. We will not pass on your details to any third parties without your consent.

\*\*Fadi K & F K Dance team - present The best Salsa Night the UK has ever seen. **With FREE INTRO SALSA CLASS at 7:00PM** & Free Entry All Night !! Classes 7:00 PM - FREE INTRO TO SALSA CLASS This Class is an introduction to our regular 2 hours salsa classes run every Thursday 7:30 & 8:30 **CROSS BODY SALSA** 7:30 Level 1 & Level 2/3 8:30 Level 1, Level 2 & level 3/4 Beginners / improvers / intermediate **Teachers** ▪️Fadi K & Cristina Varga ▪️Camy Marina ▪️Tiffany Salsera ▪️Chris diamond ▪️F K Dance Team & Guests on Rotation DJs ▪️ Fadi K & Guests on rotation PRICES £10 FOR 1 CLASS £15 FOR 2 CLASS A night brought & created by dancers to the dancers. Great dance floor / Happy hour / ultimate location & late party till 11am. More info 07907945534

The session is Every Thursday 7PM till 8PM. This is for all levels, so after the training you will be able to play games and use what you have learnt. Just like the saying practice makes perfect. Any queries on what levels you may be or just any questions please don't hesitate to contact us. PARKING: Parking is available and Free onsite. (The postcode is E15 3PA) This at the previous address on New mount Street. Press the buzzer and they will let you in. PAYMENT: We are accepting bank transfer rather than cash payments. In 2 days in advance to confirm your attendance. Bank Details: Name: The Badminton Collective Ltd Sort Code: 60-83-71 Account Number:69874292 Reference your name and date of the session. £15 for Training and Games IMPORTANT NOTES: We shall be starting at 7PM sharp so if you miss the start you'll have to just catch up I'm afraid. How to get there. If you use the provided postcode it will take you to the front of the school. By all means message me if you are having troubles. There is now a water fountain so please bring a bottle to fill up, this is in the main building while they fix the one near the sports Hall. The Badminton Collective and School 21 are not responsible for any injuries or loss of items.

The session is Every Thursday 7PM till 10PM. This is for all levels, so after the training you will be able to play games and use what you have learnt. Just like the saying practice makes perfect. Any queries on what levels you may be or just any questions please don't hesitate to contact us. PARKING: Parking is available and Free onsite. (The postcode is E15 3PA) This at the previous address on New mount Street. Press the buzzer and they will let you in. PAYMENT: We are accepting bank transfer rather than cash payments. In 2 days in advance to confirm your attendance. Bank Details: Name: The Badminton Collective Ltd Sort Code: 60-83-71 Account Number:69874292 Reference your name and date of the session. £13 Games IMPORTANT NOTES: We shall be starting at 7PM sharp so if you miss the start you'll have to just catch up I'm afraid. How to get there. If you use the provided postcode it will take you to the front of the school. By all means message me if you are having troubles. There is now a water fountain so please bring a bottle to fill up, this is in the main building while they fix the one near the sports Hall. The Badminton Collective and School 21 are not responsible for any injuries or loss of items.

# 📣 Paid event 👉 call for booking *** ## 👉 Standard Ticket: £549 💷 ## 👉 Early Bird: £499 💷 ## **👉 WhatsApp: +44 (0) 7470914266** ⚡ *No coding? No problem. Just bring your idea.* *⚡ From Idea to Production — Build Real Apps with AI as Your Senior Developer — In 4 Weekends* ## **🏗️ Workshop Format** * 📅 Duration: **4 Weeks (Weekends)** * ⏰ Time: **13:30 – 17:00** * 🧑‍🏫 Format: **Instructor-led + Hands-on** * 👥 Style: **Build together in class** * 💻 Outcome: **1 fully working production-ready app** # **🗺️ 4-WEEK LEARNING JOURNEY** *** ## **🟢 WEEK 1 — *“From Zero to First App”*** ### **🎯 Theme: *Understand React + Think Like a Builder*** **Slogan:** 👉 *“You don’t need to know everything to start building.”* ### Topics: * What is React (in simple terms) * Components & JSX * Props & State (core mindset) * React project setup (Vite) * Folder structure (real-world style) ### Vibe Coding: * Prompting AI to: * Generate components * Explain code * Fix errors ### Hands-on: ✅ Build your first UI (dashboard layout) ✅ Create reusable components *** ## 🟡 WEEK 2 — *“Make It Alive”* ### 🎯 Theme: *State, Events, Lifecycle Thinking* **Slogan:** 👉 *“Static pages don’t get jobs. Interactive apps do.”* ### Topics: * useState, useEffect (lifecycles simplified) * Event handling * Forms & inputs * Conditional rendering ### Vibe Coding: * AI as debugger: * “Why is this not updating?” * “Optimize this component” ### Hands-on: ✅ Build interactive features ✅ Form submission + validation ✅ UI logic (loading, error states) *** ## 🔵 WEEK 3 — *“Connect to the Real World”* ### 🎯 Theme: *API Integration & Real Data* **Slogan:** 👉 *“Real developers don’t hardcode data — they connect systems.”* ### Topics: * REST API basics (simple explanation) * Fetch / Axios * API structure understanding * Environment variables ### Vibe Coding: * Generate API services with AI * Debug API issues with AI prompts ### Hands-on: ✅ Connect to a real API (or your Node.js backend) ✅ Display dynamic data ✅ CRUD operations (Create, Read, Update, Delete) *** ## 🔴 WEEK 4 — *“From Project to Product”* ### 🎯 Theme: *Production, Deployment & Portfolio* **Slogan:** 👉 *“Don’t just build it. Launch it.”* ### Topics: * Code cleanup & structure * Basic performance tips * Deployment (Vercel / Netlify) * GitHub project setup ### Vibe Coding: * AI for: * Refactoring * Documentation * README generation ### Hands-on: ✅ Deploy your app live 🌍 ✅ Prepare portfolio-ready project ✅ Demo Day (presentation) ### Social Media *** ## zero2hero.net - Technology Training Center WhatsApp: +44 (0) 7470914266 E-mail: info@zero2hero.net Address: Unit 15 Castle Square, 40 Elephant Rd, London SE17 1EU 🎬 Youtube: https://www.youtube.com/c/zero2hero-meta 🐦 Twitter: https://twitter.com/zero2hero_uk 📸 Instagram for training: https://www.instagram.com/zero2hero.training 🔗 LinkedIn: https://www.linkedin.com/in/senrasim 👋 Meetup: https://www.meetup.com/zero2hero 🎟️ Eventbrite: https://zero2hero-meta.eventbrite.com

ALL LEVELS Technique Class Team Shark Dojo, Battersea Sports Centre, SW11 2DA Best time to train is in the morning! Here are a few benefits: * Gets that morning workout out of the way * More productive rest of the weekend * Kickstarts your metabolism * More energy & focus for the day * Develops positive sports/fitness mindset What's involved: * Drill & Hone K1 Techniques * Flexibility exercises * Light controlled Touch-Contact (if time permits) What to bring: * All your equipment * Bottle of water * Muay Thai Kickboxing Shorts are compulsory as they are sports specific! Can be worn over leggings. Please do not wear unsuitable clothing such as track & field shorts, surf or board shorts, tracksuit bottoms etc. MMA Shorts are acceptable as they have enough stretch for flexibility & splits training *Note: If you arrive late, please dress in and join the class straight away. Do not keep the class or your training partner waiting. If you need to leave early just slide out and let your training partner or Instructor know*

PyData London 2026 brings together data scientists, engineers, and researchers from around the world for three days of insightful talks, tutorials, and community connection. Hosted in one of Europe’s leading tech hubs, the event highlights the latest developments in Python, machine learning, and data science. Attendees can expect a mix of cutting-edge research, real-world applications, and opportunities to network with industry leaders. Whether you're a beginner or an expert, PyData London offers something for every level of the data science community. **THIS IS NOT A TICKET- TICKETS MUST BE PURCHASED ON CONFERENCE WEBSITE.** https://pydata.org/london2026

ALL LEVEL What's involved: * Padwork * Light Sparring * Technique Drills * Combination Drills Bring full kit

ALL LEVELS Technique Class * Techniques training: Knees, Elbows etc * Conditioning to get strong mentally as well as physically * Core workout * Plyometric Drills * Light Sparring (if there's time) Bring FULL KIT!

The first rule of WRITE CLUB is that you do not talk ***during*** WRITE CLUB. This very simple meetup is based on the premise that public and peer accountability enables more productive writing than sitting at home and getting distracted by the fridge. We will write/read for an hour in silence. (I will be writing thought experiments for my other meetup group: [THOUGHT EXPERIMENTS IN PUBS](https://www.meetup.com/thought-experiments-in-pubs)) If you'd like to hang out afterwards, or if you prefer just to hang out, I have another event immediately afterwards in the same place :-) You can find that here: [HANGING OUT AT THE SOUTHBANK](https://www.meetup.com/experimentsin/events/314649073) And if you'd like to finish the evening with a dance, there is a free social salsa meetup just outside The Southbank Centre just afterwards. More info [here](https://www.instagram.com/salserosfriends/). **This event will take place in the foyer of The Southbank Centre.** You can find us by looking out for: * A tote bag with WRITE CLUB sewn onto it * My T-Shirt, which will have HANGING OUT embroidered on the back of it * A big red flag with THE SUNRISE CLUB emblazoned on it (though this clearly isn't THE SUNRISE CLUB! If you want to find out about that, you can do so [here](https://www.meetup.com/the-sunrise-club/).) * Other writers - who may be spread out across the centre. They will have white pieces of paper with the WRITE CLUB stamp at the top of the page. There are plenty of places to buy refreshments, but you can also bring your own if you prefer. [WHATSAPP GROUP](https://chat.whatsapp.com/BpMwnRev0H237KMx4uPnek) [INSTAGRAM](https://www.instagram.com/experimentsingroupwisdom) [SUBSTACK](https://experimentsingroupwisdom.substack.com/) Looking forward to meeting and writing with you :-) Bonny

A focused Unreal Engine coworking meetup for developers, designers, and artists to build projects, solve problems, share feedback, and collaborate in person — no talks or panels, just real hands-on game development.

**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

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

We are going to build together with all the CLIs! E will be doing it at Columbus Code and Coffee Agenda --- Hosted By James Power, Organizer Pete Gordon, Organizer Just a Software Guy in the age of the Internet. Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-columbus-presents-ai-improv-lets-build-a-game-together-with-claude-code-codex-and-gemini-and-be-the-judge/.

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. So please RSVP for a head count!

Come join CORGSCON the Columbus, Ohio retro gaming expo at the Bricker Building – Ohio Expo Center June 6th-7th Saturday: 11am-6pm Saturday After Party: 6PM – 10PM Sunday: 11am-4pm PLEASE NOTE: RSVP for this event does NOT give you access to the event. Please buy tickets for the event on the website here or onsite at the event: [https://www.corgscon.com/tickets/](https://www.corgscon.com/tickets/) We'll have COGG game developers there showcasing their games alongside the [GDEX game expo](https://www.thegdex.com/) also happening later this year. Find out more here: [https://www.corgscon.com/](https://www.corgscon.com/)

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd