Data Quality

Next AWS meetup is up to date. This chapter is dedicated to **cloud migration** and **a developer-first tour of the AWS services**. 🗓 **Save the Date**: Mark your calendar 🍕 + 🍺 = Let's gather around pizza and beer at **Hevre** or Watch the stream on [YouTube (link)](https://youtube.com/live/x2YENCV4jnU) Hosted by: **Maciej Lelusz**, AWS Hero AWS Community Builders: **Maria Kmita** 🎤 **Speakers**: 〰️ *„Cross-Account, Cross-Region,* *Cross-Fingers – Migrating a Live AWS Platform"* **Volodymyr Hordiienko**, DevOps Architect at Intellias 〰️ *„NET on AWS: Better Than You Think"* **Wojtek Dąbrowski**, AWS Hero 💡 Details about Speakers & Talks💡 **Volodymyr Hordiienko:** DevOps Architect with over a decade of experience in multi-cloud infrastructure, platform engineering, and delivery automation. Designs and builds production-grade environments across AWS, Azure, GCP, and hybrid on-prem - covering architecture, infrastructure-as-code, CI/CD pipelines, container platforms, security, and operational reliability. Has led cloud migrations, platform modernizations, and greenfield builds across industries, including telecom, healthcare, IoT, finance, and retail. ☞ will speak about: A practical AWS migration story about rebuilding a live platform from a single-account, manually managed setup into a governed multi-account delivery model. The talk covers Terragrunt/Terraform, ECS Fargate, RDS, S3, CloudFront, Lambda, Cognito, CI/CD, cross-account deployments, mobile release pipelines, enterprise IAM constraints, and the operational reality of getting an AWS platform truly ready for production. **Wojtek Dąbrowski**: is a Solutions Architect and backend engineer with over a decade of experience, working primarily with AWS. He stays hands-on with code and delivery, combining practical engineering with architecture and technical decision-making. Currently, he is a Platform Tech Lead at Northmill Bank. Since 2019, he has led AWS User Group Silesia in Poland, and in 2023, he was recognized as an AWS Hero. ☞ will speak about: Most people still assume AWS is not the natural home for .NET and treat C# as a “second choice” on AWS. That used to be a fair concern in some areas, but it’s no longer the reality. In this talk, we’ll walk through what building on AWS looks like when your primary stack is C# and modern .NET. We’ll take a developer-first tour of the AWS services that make .NET a strong fit: serverless workloads (APIs, async processing, event-driven systems), container platforms, and infrastructure-as-code written in C#. Along the way, I’ll show concrete patterns and trade-offs, including where .NET shines, where it’s neutral, and where you should be honest and pick a different tool. The goal is simple: leave with a clear mental model, practical options you can use immediately, and a refreshed view of what “.NET on AWS” can look like in 2026.

Ready to turn your curiosity into a career? Whether you’re a coder at heart or a data enthusiast, we’re opening our doors to show you what it’s like to grow at Vinted. Join us for a unified intro event where we’ll dive deep into our two entry-level programs at Vinted: the **Engineering Academy** and the **Data Science & Analytics Academy.** Get every detail, hear from those who’ve walked the path before you, and have your burning questions answered by the people who lead these programs. ### **One Event, Two Paths** * **The Engineering Academy** is designed for those ready to dive into a massive tech ecosystem. In the upcoming cohort, we’re featuring 4 specialized tracks: Backend, Web, Android, and iOS. * **The Data Science & Analytics (DSA) Academy** is designed to help you build practical data skills while collaborating with different teams across the business to see how data drives Vinted. ### **Why should you join?** * **Insider Tips:** Meet managers, mentors, and past participants who will share exactly what they look for in a successful application. * **Choose Your Track:** Understand the nuances between Engineering and DSA to see where you’ll make the most impact. * **Networking:** Stick around to socialise with Vinted employees and fellow attendees over snacks. ### **Agenda** * 17:00 – Welcome to Vinted * The Keynote: Insights into Engineering and Data Science at scale. * Academy Overviews: Deep dives into the Engineering tracks and DSA rotations. * Combined Panel Discussion: Meet the mentors and participants from both Academies. * 18:00-19:00 – Networking & Refreshments ### **How to Join** You can attend in person at our Vilnius HQ or watch the live stream on YouTube. **Where:** Vinted HQ, Švitrigailos g. 13, Vilnius / **Online:** Follow YouTube link. **If you’re coming to HQ, please register by clicking "Attend" so we can save you a spot!** *Important Information If you’re joining us in person, please note that the event will be photographed. These images may be used by Vinted, UAB on social media, press, and internal channels for up to one year. For more on your data rights, check our [Privacy Policy.](https://careers.vinted.com/privacy-policy)* **We can’t wait to meet the next generation of Vinted talent!**

Hakierspejs spotyka się na żywo w siedzibie stowarzyszenia! Zapraszamy wszystkich zainteresowanych naszą aktywnością. Uczestnictwo jest darmowe, rejestracja nie jest obowiązkowa – wystarczy po prostu przyjść. Nie mamy żadnego konkretnego planu: po prostu zbieramy się i haczymy - co komu przyjdzie do głowy. Zaczynamy o 19:00, ale warto sprawdzić [https://at.hs-ldz.pl](https://at.hs-ldz.pl) – być może ktoś otworzy siedzibę wcześniej. Jeżeli masz problem z wejściem, zadzwoń domofonem przy bramie od ulicy na nr 100, zadzwoń telefonem na 42-203-20-50 albo wejdź na naszego chata (patrz poniżej). Potrzebujesz więcej informacji? Skontaktuj się z nami na czacie lub mailowo. Szczegóły znajdziesz tutaj: [https://lodz.hackerspace.pl/](https://lodz.hackerspace.pl/) Więcej szczegółów uzgodnimy na naszym chacie Telegramowym/Matrixowym: [https://t.me/hakierspejs](https://t.me/hakierspejs) [https://matrix.to/#/%23hs-ldz:hackerspace.pl](https://matrix.to/#/%23hs-ldz:hackerspace.pl)

Ready to turn your curiosity into a career? Whether you’re a coder at heart or a data enthusiast, we’re opening our doors to show you what it’s like to grow at Vinted. Join us for a unified intro event where we’ll dive deep into our two entry-level programs at Vinted: the **Engineering Academy** and the **Data Science & Analytics Academy.** Get every detail, hear from those who’ve walked the path before you, and have your burning questions answered by the people who lead these programs. ### **One Event, Two Paths** * **The Engineering Academy** is designed for those ready to dive into a massive tech ecosystem. In the upcoming cohort, we’re featuring 4 specialized tracks: Backend, Web, Android, and iOS. * **The Data Science & Analytics (DSA) Academy** is designed to help you build practical data skills while collaborating with different teams across the business to see how data drives Vinted. ### **Why should you join?** * **Insider Tips:** Meet managers, mentors, and past participants who will share exactly what they look for in a successful application. * **Choose Your Track:** Understand the nuances between Engineering and DSA to see where you’ll make the most impact. * **Networking:** Stick around to socialise with Vinted employees and fellow attendees over snacks. ### **Agenda** * 17:00 – Welcome to Vinted * The Keynote: Insights into Engineering and Data Science at scale. * Academy Overviews: Deep dives into the Engineering tracks and DSA rotations. * Combined Panel Discussion: Meet the mentors and participants from both Academies. * 18:00-19:00 – Networking & Refreshments ### **How to Join** You can attend in person at our Vilnius HQ or watch the live stream on YouTube. **Where:** Vinted HQ, Švitrigailos g. 13, Vilnius / **Online:** Follow YouTube link. **If you’re coming to HQ, please register by clicking "Attend" so we can save you a spot!** *Important Information If you’re joining us in person, please note that the event will be photographed. These images may be used by Vinted, UAB on social media, press, and internal channels for up to one year. For more on your data rights, check our [Privacy Policy.](https://careers.vinted.com/privacy-policy)* **We can’t wait to meet the next generation of Vinted talent!**

Rano, przy dobrej kawie i śniadaniu rozpoczynamy dzień ciekawym, startupowpo-technologicznym netoworkingiem. OpenCoffee to regularnie spotkanie w gronie przedsiębiorców technologicznych oraz tych co jeszcze myślą o odpaleniu swojego projektu. Tematy poprzednich spotkań: https://docs.google.com/spreadsheets/d/1MS2IqNQG69guUtcsbFQ3_MByd7fFD2BMX4HfhJah-uA/edit?fbclid=IwY2xjawFfWwlleHRuA2FlbQIxMAABHdzZY8UKMiOa9-vnnDcODnWJJgg3XTeWXIyRKe1tzfIR-_Lyi3pAhhOQNA_aem_jUb8F2hXGuDmukpMHuhVMA&gid=0#gid=0 Proszę wrzucać proponowane tematy na to spotkanie w poście poniżej 🙂. Wygra temat z największą ilością rekacji.

**We are back** with three talks that will show you what modern development looks like in 2026! **Accessibility**, **AI** and **evolution of frameworks** are topics that already reshaping the way we write and think about code. Joining us for the event are three exceptional speakers: 1. **Adrian Romański** \- Senior Engineer @PushBased\, specializing in accessibility\, who will demonstrate how @angular/aria and AI agents can work together to build and validate accessible interfaces\. 🎤 "*The Blueprint of Accessibility: A Deep Dive into Angular Aria*" 2. **Matthieu Riegler** \- Software Engineer @Google\, Angular Team\, contributor to the framework and developer tooling\, who will walk us through how Angular has matured over the past 10 years\. 🎤 "*What if we made Angular a little less… weird?*" 3. **Michael Hladky**, Google Developer Expert, Nx Champion and CEO of @PushBased, who will show how to transform chaotic AI experiments into deterministic, repeatable migration workflows for large-scale codebases. 🎤 "*Deterministic AI Workflows for a Large-Scale Code Base*" Three talks. Three perspectives. One evening you'll leave with fresh **ideas** and actionable **knowledge** ready to put into practice. 📅 20.05.2026, 18:00 📍 Co\Walk HUB, ul. Roosevelta 10B, Łódź Save the date, bring your fellow developers and join us! 🚀 See you! **#ngLodz** **#Angular**

Hakierspejs spotyka się na żywo w siedzibie stowarzyszenia! Zapraszamy wszystkich zainteresowanych naszą aktywnością. Uczestnictwo jest darmowe, rejestracja nie jest obowiązkowa – wystarczy po prostu przyjść. Nie mamy żadnego konkretnego planu: po prostu zbieramy się i haczymy - co komu przyjdzie do głowy. Zaczynamy o 19:00, ale warto sprawdzić [https://at.hs-ldz.pl](https://at.hs-ldz.pl) – być może ktoś otworzy siedzibę wcześniej. Jeżeli masz problem z wejściem, zadzwoń domofonem przy bramie od ulicy na nr 100, zadzwoń telefonem na 42-203-20-50 albo wejdź na naszego chata (patrz poniżej). Potrzebujesz więcej informacji? Skontaktuj się z nami na czacie lub mailowo. Szczegóły znajdziesz tutaj: [https://lodz.hackerspace.pl/](https://lodz.hackerspace.pl/) Więcej szczegółów uzgodnimy na naszym chacie Telegramowym/Matrixowym: [https://t.me/hakierspejs](https://t.me/hakierspejs) [https://matrix.to/#/%23hs-ldz:hackerspace.pl](https://matrix.to/#/%23hs-ldz:hackerspace.pl)

Zapraszamy wszystkich fanów śpiewania (lub próbowania śpiewania) na karaoke w naszym hakierspejsie. Umiejętności wokalne niepotrzebne, nawet niezalecane. Równocześnie w siedzibie hakierspejsu będzie odbywało się także spotkanie planszówkowe.

Zapraszamy na kolejne spotkanie planszówkowe! Mamy parę gier w spejsie, ale zachęcam przynieść również własne gry! Chętnie zagramy w coś nowego. Jest też miejsce na zostawienie gier na jakiś czas w spejsie, żeby nie musieć ich targać tutaj co tydzień. \-\-\- Zaczynamy o 19:00, ale warto sprawdzić [https://at.hs-ldz.pl](https://at.hs-ldz.pl) – być może ktoś otworzy siedzibę wcześniej. Jeżeli masz problem z wejściem, zadzwoń na 42-203-20-50 albo wejdź na naszego chata (patrz poniżej). Potrzebujesz więcej informacji? Skontaktuj się z nami na czacie lub mailowo. Szczegóły znajdziesz tutaj: [https://lodz.hackerspace.pl/](https://lodz.hackerspace.pl/) Więcej szczegółów uzgodnimy na naszym chacie telegram/matrix: [https://t.me/hsldz_planszowki](https://t.me/hsldz_planszowki) [https://matrix.to/#/#hs-ldz-board-games:matrix.org](https://matrix.to/#/#hs-ldz-board-games:matrix.org)

Spotkania z serii wymiany wiedzy podczas wspólnego rozwiązywania zadań CTF – jest to świetna zabawa pozwalająca równocześnie rozwinąć wiedzę w zakresie cyberbezpieczeństwa. Poziom trudności CTF-owego zadania ustalimy na początku spotkania. Najprawdopodobniej wybierzemy coś z platformy Hack The Box. Spotykamy się **co tydzień w środę o 19:00.** \-\-\- Zaczynamy o 19:00, ale warto sprawdzić https://at.hs-ldz.pl – być może ktoś otworzy siedzibę wcześniej. Jeżeli masz problem z wejściem, zadzwoń na 42-203-20-50 albo wejdź na naszego chata (patrz poniżej). Potrzebujesz więcej informacji? Skontaktuj się z nami na czacie lub mailowo. Szczegóły znajdziesz tutaj: https://lodz.hackerspace.pl/ Więcej szczegółów uzgodnimy na naszym chacie Telegramowym: https://t.me/hakierspejs

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **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

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message \*\*Chris (the organizer)\*\*with a **title and short description** of what you’d like to share. 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.linkedin.com/company/transformlabs/) Sign up also accessible via [Transform Labs Luma](https://luma.com/transformlabshq)

**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** TBD **YouTube Link** TBD

**Abstract:** This is a practical playbook for building a production-grade data lakehouse. It walks through foundational principles — naming conventions, least-privilege access, automated CI/CD testing — before diving into medallion architecture. Furthermore, metadata-driven design patterns show how configuration tables and dynamic notebook orchestration eliminates hard-coded pipelines. The deck covers star schema modeling, guidance on choosing between Spark, Pandas, and SQL, and data quality enforcement using DQX with YAML data contracts. Finally, we dive into security best practices and performance optimizations. **Host:** Justin Shea, Mehdi Jeddi, Erik Pak, and Sou-Cheng Choi **Talk Format:** This is a hybrid event. To attend online, join us on Zoom here at 6pm: https://iit-edu.zoom.us/j/89379230295?pwd=NdETyE5sdYuSrvsrBZXSBFkUESBVkg.1 Meeting ID: 893 7923 0295 Passcode: 5t5WYn **Sponsor:** Adyen, UIC College of Business, and PyData Chicago co-host this event. UIC will provide the meeting site. Adyen will sponsor pizza and soft drinks for the onsite participants. **Address:** University of Illinois - Chicago, Douglass Hall, Room 220, 705 S Morgan St, Chicago, IL 60607 **Logistics:** “UIC Douglass Hall” is recognized on Google Maps, which can guide you through campus. Once you arrive, proceed to the second floor, room number 220

**Welcome to Drunken Philosophy** a casual, curious social discussion **Optional topic for this meetup: What's up with all the AI hate?** A recent survey found that 74% of Americans have a negative view of AI, and I want to know why. Come out and debate whether AI is good or bad. My hot take: a labor-saving tool that could potentially help cure cancer gets called dangerous because it might raise unemployment or cause a speculative investment bubble, that tells you a lot more about capitalism and the economic system we live under than it does about the tool itself. As a computer programmer, I think AI is a wonderful tool that has increased my productivity by at least an order of magnitude. I'd go so far as to say Claude Code is the best tool I have ever used. Debate me and name a better one. Is AI potentially dangerous? Yes, but so are a lot of tools. Chainsaws. Steam engines (early ones would occasionally explode and kill everyone in the room). Do you think cavemen sat around debating whether fire could be used as a weapon or for self-harm, and decided not to discover it? I have two friends who hate AI for opposite reasons: one thinks it's a fad and not useful, and the other thinks it's going to take over everything and cause human extinction. Come out tonight, have a friendly debate, and make some friends. No lectures. Friendly crowd. Drop in for one drink and stay if it's fun.

**Building a great product is one thing—building momentum behind it is another.** Join **Senior Product Manager Adam Solaiman** and **User Experience Manager Tyson Smith** for a behind-the-scenes look at what it takes to turn complex ideas into scalable products inside large organizations. In this session, they’ll share how teams move from ambiguity to execution—navigating organizational complexity, aligning stakeholders, and continuously evolving products after launch. You’ll walk away with insights on how to: * Build and sustain momentum across teams * Adapt to changing priorities without losing direction * Scale products thoughtfully in complex environments Whether you're driving a new initiative or growing an existing product, this conversation will give you practical strategies to keep things moving forward. Come connect, learn, and swap stories with fellow product professionals. \-\-\- Food and drinks will be provided by Switchbox, our generous host. Free parking will be available at the front and back sides of the Switchbox Office.

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.