Software Engineering

AWS meetups are back in town! This chapter is the 1st one this year and dedicated to **S3.** But we look on the storage from completely different angles: **From Developer's to Penetration and Security perspective.** More info soon, and the meantime we reveal topics, and... 🗓 **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/Tx7lmDVTVKo) Hosted by: **Maciej Lelusz**, AWS Hero AWS Community Builders: **Maria Kmita & Pawel Kusinski** 🎤 **Speakers**: 〰️ *„*"Optimizing S3: A Million-Dollar FinOps Journey" **Avihay Tsayeg,** Senior Staff DevOps Engineer, Cloudinary 〰️ *„UnS3cure - Buckets full of holes"* **Paweł Kusiński,** Penetration Tester and Security Researcher 💡 Details about Speakers & Talks💡 **Avihay Tsayeg:** joined Cloudinary five years ago and is a key member of the Infrastructure group, where he leads the FinOps domain. With over 20 years of experience in software development, specializing in the DevOps–FinOps intersection, Avihay brings deep expertise in cloud cost optimization. ☞ will speak about: In his talk, he will share actionable strategies for mastering resource cost management within AWS S3. **Paweł Kusiński:** Penetration Tester and Security Researcher focused on app and cloud security. His work includes penetration tests and infrastructure audits across a wide range of IT projects. Passionate about knowledge sharing, he leads workshops, gives conference talks, teaches at universities, and is an AWS Community Builder. Outside of work, he plays CTFs as a member of justCatTheFish and has an unhealthy habit of buying too many Legos - despite having absolutely no space left for them. ☞ will speak about: Time goes by, AWS keeps adding new security features, and yet year after year, we hear about more data leaks and breaches involving S3 buckets. Data spills by the terabyte, companies apologize, and shortly after, the cycle repeats. How does this keep happening? What is the core problem? How do attackers find their targets? We’ll walk through the most common methods and configuration mistakes - and if time allows, we’ll try to secure everything properly as well! And who knows - maybe we'll uncover a million-dollar leak during the presentation?

This time we are going to experience the world-famous spa town of Karlovy Vary, a spa town situated in western Bohemia. We will admire the grand 19th-century spa architecture, stroll along the impressive colonnades, and sip the presumably health-restoring sulphurous waters from 12 different springs in spouted ceramic drinking cups. One of the most famous attractions is the hot spring that spews out hot thermal waters to a height of 12 meters. Distance : 10 km (about 5 hours) Difficulty Rating : Easy Tour Highlights: • Professional and friendly guide • Transportation by air-conditioned bus • Visit the Mill & Market Colonnade • Entrance to the Church of St. Mary Magdalene • Visit and tour the Vrídelní Kolonáda underground spa’s inner workings) • Entrance to the Diana tower lookout • Entrance to St. Peter and Paul Cathedral • Visit the Japanese Garden • Moser glassworks tour OPTIONAL • Entrance to Jan Becher Museum (includes tasting of 4 different types of Becherovka) • Thun Porcelain Shop More information at : https://www.facebook.com/events/1425899982330883/

We are a group of runners who meet most weeks for a run around the beautiful Vltava River's edge. You can bring your running shoes straight from the office/home office if you don't have time to stop at home. There will be a place to put your bags in the Cafe. We will run about 9 km along the river and have a drink afterwards. Paces vary! We will meet in the square near Kavarna Liberal (Hermanova 6), near the Vltavska metro/tram stop at 6:30 on Wednesday. See you there!

**5-a-side Football** practice at Rajská Zahrada artificial grass pitch. No cleats shoes. Maximum of 15 participants for a 3 teams of 5 rotating. **Kick off at 18h00**. Everybody is welcome, no age, gender nor any restriction of any type to join. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/G8NWGjM In case of any Opt-out within 24h of the session, or no show, the payment will be due (you still can ask someone to come instead of you, as your spot will be booked)

🎤🔥 OPEN MIC \| JAM SESSION @ Tequila Tales 🔥🎶 Ready to step on stage, grab the mic, and let your talent shine? ✨ We’re launching a weekly Open Mic \| Jam Session — a vibrant\, inclusive space where artists come together to create\, experiment\, and perform in front of an energetic\, supportive crowd 🎭💛 📅 Every Wednesday 🚀 First Edition: Wednesday, 21st January 2026 🎭 Who can perform? 🎤 Poets & spoken word artists 😂 Stand-up comedians 🎸 Musicians & bands 🎭 Improv & theatre performers 🪄 Magicians & experimental acts ⏱ Performance slots: 15–20 minutes 🎶 Open format \| Free entry \| Community vibes only 📝 Want to perform? Sign up here: 👉 https://forms.gle/uwcZcDdGkBwM3Yqs9 ⏰ Signup deadline: Sunday 19:00 (same week) 📋 Final roster announced: Monday ⚠️ Late requests may be considered via WhatsApp on Monday & Tuesday only if slots are available — no guarantees once the lineup is full. Whether you’re testing new material, performing for the first time, or just soaking in the creative energy — this stage is yours 🎶🔥 Come perform, come support, come vibe ✨🍹 🎤💥 Every Wednesday. One mic. Endless talent. 💥🎤

**Naked Minds: Life Audit** **See where you truly stand & decide what’s next** Launch price: 399 CZK (regular price: 1,499 CZK) You need to register and buy [Tickets here](https://www.tixtree.com/e/life-audit-see-where-you-stand-dab2b4801eb5) Most people don’t feel stuck because they lack motivation. They feel stuck because they never clearly see where they actually are. Life Audit is a structured evening designed to help you pause and take an honest look at your current reality. Where do you truly stand right now? In your work. Your relationships. Your energy. Your direction. You won’t be pushed to “reinvent your life.” You will **see clearly. Choose consciously.** No hype. No gurus. No forced positivity. **Just clarity, ownership, and a next step that makes sense.** **WHAT THIS EVENT IS ABOUT** Your life moves in the direction of what you repeatedly choose — consciously or not. At Life Audit, you will: * Evaluate where you currently stand across the key areas of your life * Identify what feels aligned — and what doesn’t * Gain clarity on what is working and what is draining you * Define what you actually want next * Create a simple, realistic path forward This is not about pressure. It’s about awareness that leads to better decisions. **WHAT YOU’LL WALK AWAY WITH** * A clear snapshot of your current life * Honest insight into your reality * A defined next direction * Concrete action steps tailored to you * Shared momentum from people who take growth seriously You won’t leave “inspired.” You’ll leave clear. This is about implementation, not information. **HOW IT FEELS** Grounded. Honest. Clear. Like stepping back and seeing your life from above — without judgment, without drama. **See clearly. Choose consciously.** No pressure. No shame. Just clarity and forward motion. **WHO THIS EVENT IS FOR** This is for you if you: * Want clarity about where you stand * Feel slightly off-track or drifting * Are ready to stop postponing decisions * Want growth that fits real life * Prefer grounded structure over motivation hype If you’re ready to stop drifting and start choosing your path … this is for you. **WHAT THIS IS … AND ISN’T** This is not a motivational talk. No yelling. No toxic positivity. No “just try harder.” Life Audit is a structured Naked Minds experience designed to help you see your life clearly — and move forward intentionally.

**Pražský frontendový meetup komunity** [ReactGirls](https://reactgirls.com/). **Kdy:** 5\. 3\. od 18h **Kde:** kanceláře Mews, nám. I. P. Pavlova 5, 120 00 Vinohrady (3. patro) **Jazyk**: CZ K příležitosti Mezinárodního dne žen, který připadá na 8. března, jsme se **už podruhé** rozhodly věnovat tento meetup naší ženské komunitě. Tešit se můžeš na tři inspirativní speakerky a večer strávený v ženském kolektivu. Nechceš si to nechat ujít? Tak vezmi s sebou kamarádku a přijď taky! **Na tento meetup se mohou přihlásit pouze ženy. Všem mužům v naší komunitě děkujeme za pochopení a budeme se těšit příště. :)** **Harmonogram akce:** **18.00** otevíráme **18:30 [Eva Čechová](https://www.linkedin.com/in/evacechova/) (Mews)** **Eva Čechová** si první HTML a CSS naťukala už jako teenager, ale pak si na dlouho odskočila k práci s živými jazyky. Ke kódu se vrátila až mnohem později přes Czechitas a ReactGirls. Dnes pracuje v Mews jako junior software inženýr a v rámci ReactGirls podporuje další holky na jejich cestě do techu. Ve volném čase se učí dělat profesionální fotky a videa. **19:00 [Natália Rydzá](https://www.linkedin.com/in/nat%C3%A1lia-rydz%C3%A1/) (Jigx)** **JSON: Keď frontend a backend hovoria rovnakou rečou** JSON je spoločný jazyk webu, ktorý prenáša dáta čitateľne a nezávisle od programovacieho jazyka. Vďaka nemu si aplikácie vymieňajú informácie cez API rýchlo a efektívne. Je jednou zo základných znalostí každého developera. Pozrieme sa na jeho štruktúru, základné pravidlá a princípy fungovania. **Natália Rydzá** pracuje jako Solution Developer ve firmě Jigx, která se zaměřuje na vývoj mobilních aplikací. Kromě toho se ráda vrací jako kouč a mentor do komunit Czechitas a ReactGirls, kde sama s programováním začínala. Ve volném čase si najraději oddychne v sauně nebo cestováním. **19:30 [Jana Zahrádka Zajfrtová](https://www.linkedin.com/in/jana-zahradka-zajfrtova/) (Gen for Future)** **Jak začít realizovat své projekty** Co kdyby sis dovolila uvěřit, že můžeš? Že můžeš uspět v IT. Že můžeš realizovat svůj projekt. Že můžeš růst - i když si ještě nejsi jistá. Ukážeme si konkrétní koučovací metody, jak využít své dosavadní zkušenosti, ujasnit si směr a proměnit své nápady v reálné příležitosti. Jana otevřeně nasdílí i svůj příběh - včetně výzev a pádů, které k růstu patří. Na závěr si představíme nadaci Gen for Future a představíme novou spolupráci s komunitou ReactGirls. **Jana Zahrádka Zajfrtová** je zakladatelka Gen for Future a průvodkyně žen na jejich profesní cestě. Ve své práci vytváří prostor, kde ženy objevují, že mohou - růst, měnit směr, realizovat vlastní projekty i ambice, které si dosud možná nedovolily naplno vyslovit. **Chceš přednášet na našem meetupu?** Vyplň nám přihlášku, kterou najdeš na našem webu ([ZDE](https://reactgirls.com/meetups)) a my se ti ozveme. Přednášku u nás můžeš mít na libovolné téma, týkající se vývoje. Vítáme ale i softovější témata. ℹ️ Na našich eventech pravidelně fotíme a natáčíme. Fotky a videa používáme k propagaci našich aktivit na webu a sociálních sítích. Pokud na fotkách být nechceš, dej vědět organizátorům na místě. Těšíme se! Tým ReactGirls

• What we'll do This meet up is for those who are learning English as a second language and want a chance to practice. We will provide a fun and interesting activity to encourage simple English conversation. It may be a game, an interesting topic, or whatever. We promise to keep the evening relaxed and give you a chance to practice your English. • What to bring Just you. • Important to know We are hosted by Do Slova Praha. As a church, we want to help our community in practical ways. We may hand out information to other events that our church does, but do not worry... this is not a religious event. Just come to practice English :) [https://www.doslovapraha.cz/](https://www.doslovapraha.cz/)

Hello ladies, Another meeting is here 🎉 Would you like to get to know other women who are interested in IT or work in the field? Let's build a community together, meet & get to know new friends, and talk about everything and anything. A table will be booked on name Michaela. Looking forward to seeing you! 😊

\*\*\*\*\* We're meeting both in-person and virtually via Skype depending on the week. Contact Sonya Lano for more information if you want to join \*\*\*\*\* This is for anyone wanting feedback! We mostly focus on novels and longer works, but short stories are welcome, as well. You can submit anything you want feedback on in any genre. Current word limit for submissions is 4,000 words. Send your submissions by 13:30 the Thursday before the meeting (or we have a grace period during which you can submit a lower limit of 2,500 words if you submit by midnight Thursday evening). Also, if you don't have time to read through everyone's submissions, still join the meeting! We know that busy schedules don't always make finding reading time easy. To submit, use the Dropbox folder. If you don't have access to it, send sonyalakadosch@yahoo.com your e-mail address so I can add you. Looking forward to seeing everyone there! My number in case of any confusion the day of the meeting is 737 118 530 - or on Facebook: Sonya Lano (https://www.facebook.com/sonya.lano) DROPBOX INFO: * add new submissions for the next meeting in the " submissions" folder for the meeting date. Put your name at the beginning of the file name (for example: "Sonya Somewhere in the Dark") * When providing written feedback (not required, but deeply welcome), save the file as a separate document on your device, then mark your changes/ feedback in the saved file. After you're finished, put the file in the "Feedback" folder under the folder for the meeting date and then under the person the feedback is for (e.g. "For Sonya"). * The submissions folder will be replaced within a week after the meeting has taken place. Feedback will be deleted within 2 months after the meeting, so if you need it longer than that, make sure to copy it to your own disk.

Welcome to the international Café Philo in Prague. We meet every first Saturday of the month in the cosy [Café Millème](https://store11473398.ecwid.com) in the center of Prague. We choose a participant randomly, by lottery, who then has the privilege to determine the topic of our discussion. We will reflect, ponder and exchange arguments until our brains are on fire. Philosophy isn't just something for universities, it is a way to open your mind to new thoughts and questions. No application is necessary, there is no entrance fee and there are no prerequisites for participating, except curiosity and respect for other people. We meet from 17:15 until 18:45 to follow together the white rabbit into the wonderland of philosophy... More information about me under this [link](https://sophonautik.ch/english/).

This group is for anyone who writes - for any reason. Have a thesis or article you need to write? Trying to finish a novel or an academic paper? This group is for you. We are currently meeting in-person at Locus Workspace. If you have any questions, contact Sonya Lano here or on Facebook or Messenger (https://www.facebook.com/sonya.lano). We start at 9:00, introduce ourselves, and share a few words about what we're working on and what we hope to accomplish during the session. At the end of the session, you can give us a brief recap of how it went. We'll break at noon. The afternoon session starts at 2:00 pm. You're welcome to join both sessions or just one. Please come as close to 9:00 as you can if you come for the morning session. If you come to the afternoon session, we are usually back by about a quarter to 2:00.

Open philosophical discussion, thinking together about a topic in a philosophical way. The topic will be chosen by the participants at the beginning of the event. No application, no entrance fee. (But as we are meeting in a normal coffee shop, you have to order at least a cup of coffee or tea.) Experience the joy of real dialogue with other people about the really important topics of life! Follow the white rabbit into the wonderland of philosophy... You find informations about me and the event [here](https://sophonautik.ch/english/). Je nach Gruppe kann die Veranstaltung auch auf [Deutsch](https://sophonautik.ch/deutsch/) abgehalten werden.

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!

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **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

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

One of the most valuable parts of this community is the opportunity to think out loud with other product professionals. This session is built for exactly that. As we wrap up the quarter, it’s a great time to pause and reflect. What’s on track? What needs adjustment? Where could a small shift create bigger impact? Join fellow product professionals for a focused, interactive conversation designed to help you recalibrate for the next quarter. You’ll have the opportunity to share where you are, hear how others are thinking through similar challenges, and gain fresh perspective you can bring back to your team and organization. We’ll gather at 8:00AM, with discussion starting promptly at 8:15AM. 📍 First Watch - 7227 N High St Located in: The Shops at Worthington Ample parking is available. Food and beverages will be available for purchase. Start your morning with clarity and connection — we hope to see you there! ☀️

We're excited to launch **GitHub Copilot Dev Days**, a global in‑person community event series running **March 15 – April 30**! Let's come together as developers, grow our local community, and showcase the power of GitHub Copilot with **free, high‑quality training materials** from Microsoft + GitHub. * GitHub Copilot in VS Code * GitHub Copilot CLI … and more! * **Intro Talk (30–45 min):** GitHub Copilot + AI development * **Local Community Talk (30–45 min):** NOT ME, **[Matt Eland](https://www.linkedin.com/in/matteland/)** * **Hands‑on Workshop (1 hour):** Practical exercises using GitHub Copilot * **SPECIAL GUEST** **(virtual)**: **[Andrea Griffiths](https://www.linkedin.com/in/acolombiadev/)** (Senior Developer Advocate at GitHub) ***Bring your laptop and expect to write some (non-AI-generated) code!*** Food and drinks will be available. **LOCATION:** 6515 Longshore Loop, Suite 300, Dublin, OH 43017 **FREE PARKING:** 6725 Longshore Street, Dublin, OH 43017

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!

**Web Design Decoded: Tools, Practices, and Proven Processes:** **Semantic HTML** At WebDev Columbus, we are exploring some of the most important topics of professional high-end web design and page building. Primarily focused on site building in the WordPress environment, our group explores tools, tips, and techniques for building the best WordPress sites possible. Additionally, we focus on disciplines and technologies that take website design from visually appealing to optimized spaces for delivering you and/or your client's message effectively and with a nod towards extended reach. Each session combines practical demonstrations with real-world insights, giving you actionable knowledge you can apply immediately. Whether you're a seasoned developer looking to enhance your design skills or a newcomer wanting to understand design best practices, this series offers valuable insights for every skill level. **What to expect:** * Hands-on demonstrations of popular design tools * Best practices for design-to-development workflows * Tips for creating responsive, accessible designs * Real-world problem-solving scenarios * Interactive Q&A sessions * Networking opportunities with fellow developers **Each meetup features:** 60 minutes of focused presentation 30 minutes of live demonstrations 30 minutes for questions and discussion **See you there!** Our casual, collaborative environment encourages learning from both presenters and fellow attendees. Bring your questions, share your experiences, and connect with Central Ohio's web development community! **Stay tuned for specific session topics and dates.**