Big Data

| Mon 16Feb2026 | Athens (Piraeus), Greece | - | 5:00 PM | Boarding | | ------------- | ------------------------ | --- | ------- | -------- | | Tue 17Feb2026 | Nauplion, Greece | 7:00 AM | 5:00 PM | Tendered | | Wed 18Feb2026 | Katakolon, Greece | 7:00 AM | 4:30 PM | Docked | | Thu 19Feb2026 | Iraklion (Heraklion), Crete | 9:00 AM | 6:00 PM | Docked | | Fri 20Feb2026 | Rhodes, Greece | 9:00 AM | 10:00 PM | Docked | | Sat 21Feb2026 | Cruising | - | - | - | | Sun 22Feb2026 | Limassol, Cyprus | 7:00 AM | 5:00 PM | Docked | | Mon 23Feb2026 | Antalya, Turkey | 8:00 AM | 6:00 PM | Docked | | Tue 24Feb2026 | Cruising | - | - | - | | Wed 25Feb2026 | Ephesus (Kusadasi), Turkey | 7:00 AM | 5:00 PM | Docked | | Thu 26Feb2026 | Athens (Piraeus), Greece | 7:00 AM | - | Docked | | Fri 27Feb2026 | Athens (Piraeus), Greece | - | - | Departure | This cruise is a Celebrity Distinctive Voyage, offered as an exclusive opportunity for select travel agents. What does this mean? The cruise includes * The services of a Distinctive Voyages Host * An invitation to a Private Welcome Reception * An Exclusive Amenity that may include an Exclusive Shore event

**IMPORTANT PLEASE RSVP** @ https://www.meetup.com/foobar-io/events/312880991/?eventOrigin=group_upcoming_events \*\*\* 🚀 **foobar.i/o** kicks off the new year with the first meetup of **2026**! We are excited to announce our upcoming meetup on **February 19**, hosted at the Greek offices of **NTT Data Greece**! 📍 **Michalakopoulou 80,** Athens (2nd floor) 🎤 Speaker: **Matthaios Stavrou** **Matthaios** is a Custom Software Engineering Associate Manager at Accenture and will join us to present **schema evolution** best practices. 🎯 Topic: **Secure & Reliable Schema Management for Java Microservices with Kafka Schema Registry in Production** In this session, we will explore how **Java-based microservices** can securely and reliable work with **Kafka Schema Registry** in real production environments: * best practices for schema evolution with **Avro** and **JSON Schema** * **ACLs** and **RBAC** over **Schema Registry** * runtime schema Validation and Compatibility * hands-on **Spring Boot** & Maven demo with real-world config

🚀 **foobar.i/o** kicks off the new year with the first meetup of **2026**! We are excited to announce our upcoming meetup on **February 19**, hosted at the Greek offices of **NTT Data Greece**! 📍 **Michalakopoulou 80,** Athens (2nd floor) 🎤 Speaker: **Matthaios Stavrou** **Matthaios** is a Custom Software Engineering Associate Manager at Accenture and will join us to present **schema evolution** best practices. 🎯 Topic: **Secure & Reliable Schema Management for Java Microservices with Kafka Schema Registry in Production** In this session, we will explore how **Java-based microservices** can securely and reliable work with **Kafka Schema Registry** in real production environments: * best practices for schema evolution with **Avro** and **JSON Schema** * **ACLs** and **RBAC** over **Schema Registry** * runtime schema Validation and Compatibility * hands-on **Spring Boot** & Maven demo with real-world config 🤝 **Networking & Refreshments** After the talk, we will stick to our usual tradition of networking over food and drinks, **sponsored** by **Confluent**. **Confluent** proudly supports communities worldwide that focus on streaming platforms, real-time data streams, **Apache Kafka®**, **Apache Flink®**, and their ecosystems. More information and community resources can be found at: [https://developer.confluent.io/community/](https://developer.confluent.io/community/) Their continuous support of the developer community makes meetups like this possible, and we are amazed to have them with us while kicking off 2026! #foobario #Confluent #NTTDataGreece #SoftwareEngineering #Microservices #ApacheKafka #Streaming

Based on my MBA research, this talk explores the current state of Agile adoption in Greek organizations. Drawing on survey data from executives and Agile team members, it examines how Agile is practiced today, which frameworks are in use, what success looks like and where things quietly start to break down. The research reveals a growing gap between how leaders believe Agile is working and how teams actually experience it. Using a data-driven lens, we explore the real challenges of scaling Agile in Greece, the underestimated role of culture and people, and what it takes to build truly adaptive, innovation-driven organizations. While the data was collected in Greece, the findings are compared with some of Europe’s most mature Agile environments, particularly Denmark and the Netherlands. This comparison places the Greek ecosystem in a broader EU context, distinguishing local constraints from universal Agile challenges and highlighting what can realistically be adapted. **What you’ll take away** * Uncover critical perception gaps, such as the ‘Culture Blind Spot’, that are holding teams back without leadership realizing it. * See the shared roadmap executives and teams actually agree on for scaling Agile beyond pilots and isolated successes * Identify the human factors currently undervalued, contributing to stalled innovation in the majority of organisations and talent loss eventually. * Learn how to move beyond the ‘delivery’ toward healthier, more resilient organizations This session is ideal for leaders, managers, Agile practitioners, and anyone interested in the future of work and organizational agility.

Hallo Makers! 👋🏻 🗓️ Την Κυριακή 22 Φεβρουαρίου και ώρα 15:00 πεζοπρούμε νότιο Υμηττό και με αφετηρία την Βούλα! ​✍️ Όπως μπορείτε να δείτε και από τον τίτλο θα συναντήσουμε τρία βασικά σημεία ενδιαφέροντος... ​⛰️Τρία σπήλαια! Που το καθένα έχει την δική του ενέργεια αλλά και την δική του ιστορία! Κάποιες εκ των οποίων λογίζονται από εντυπωσιακές έως τραγικές και μυστηριώδεις! ​🗺️ Πρόκειται για μία κυκλική διαδρομή 9 χιλιομέτρων και διάρκειας δυόμιση ωρών, απόλυτα βατή και χαμηλής εντάσεως. Κατάλληλη και για αρχάριους με καλή φυσική κατάσταση. ​Το 95% της διαδρομής είναι σε αγροτικούς χωματόδρομους. 🔍 Το scouting της διαδρομής έγινε Τετάρτη 4 Φεβρουαρίου! ​**Γενικές οδηγίες**: 1. ​750ml νερό στο σακίδιο 2. ​Αθλητικά υποδήματα 3. ​Κατοικίδια δεν επιτρέπονται ​Σε περίπτωση δυσμενών καιρικών συνθηκών η δραστηριότητα θα ακυρωθεί ή αναβληθεί. Αίτημα συμμετοχής μπορείς να κάνεις μόνο [πατώντας εδώ!](https://luma.com/1bc5hkv5) 📌To ακριβές στίγμα συνάντηση και εκκίνησης θα το δείτε μετά το αίτημα συμμετοχής!

Please Note: This event is advertised on multiple platforms. Please RSVP and get a ticket on Mindstone (https://community.mindstone.com/events/mindstone-athens-february-ai-meetup) to view the agenda and guarantee a spot. Welcome to the most electrifying and ground-breaking AI Meetup in Athens! Join us once a month as we delve into the world of artificial intelligence, explore its cutting-edge practical applications, and marvel at the astonishing projects that are shaping our future. Why should you attend? • Get up close and personal with the AI projects that are redefining the boundaries of technology and human potential. • Learn from the brightest minds in the field and gain valuable insights into the ever-evolving AI landscape. • Unleash your curiosity, fuel your creativity, and expand your network as you connect with fellow AI aficionados and pioneers. What you can expect? Mindstone events consist of three talks covering different aspects: • What I Learned Building With LLMs: A technical demo breaking down the process for building a product using AI with real-life learnings and insights. • How To Be More Productive Using AI: A practical demo and step-by-step guide on how to use AI to speed up and improve tasks. • What Does The Future Look Like With AI?: A theoretical talk on the impact of AI on work, life and society. After the talks we'll have pizza, drinks, and networking. Don't miss out on this extraordinary opportunity to witness the AI revolution in action. It's time to embark on a thrilling journey into the future and discover the endless possibilities that lie within the realm of artificial intelligence. Reserve your spot today for the ultimate AI experience! 💡✨ (https://community.mindstone.com/events/mindstone-athens-february-ai-meetup) Please Note: This event is advertised on multiple platforms. Please RSVP and get a ticket on Mindstone (https://community.mindstone.com/events/mindstone-athens-february-ai-meetup) to view the agenda and guarantee a spot.

ATHENS NOMAD FEST and ATHENS FUN & CONNECTION present : CO-WORKING WEDNESDAY, a weekly co-working event for Digital Nomads and Remote Workers! Keeping the ATHENS NOMAD FEST spirit alive every week 🚀 if you want to go far, work alone, if you want to succeed, work together!👊🏼 let's gather every Wednesday together from 10am to 2pm (or later) to connect, collaborate and keep building Athens Nomad community together! Every Wednesday a different place. Check meetup for the updated location 🙏 Ask the staff to find us or send me a message on Whatsapp: +32486805343 Looking forward to working with you Michaël & Christina

Following two outstanding editions, Brunch Social continues as every tow Sundays gathering — and it is quickly becoming one of our most anticipated experiences. This is also one of the very few afternoon events we organize. A late brunch format. A relaxed Sunday atmosphere. A refined, curated crowd. 🗓 Sunday, 22 February 2026 ⏰ 14:00 – 17:00 📍 The Space – Magic Tea Shop, Katechaki At 2 PM, when most people have no structured plans and the city slows down, we create something intentional — a comfortable two-floor venue, upstairs lounge seating, calm energy, real conversations, and space to connect without pressure. The previous two brunches were exceptional. Strong attendance. Effortless interaction. High-quality people in one room. We are continuing with the same standard. ☕ Community Exclusive Offer (Limited) €12 — Any brunch dish + one glass of tea or coffee. Available exclusively for confirmed members of our community. ⚠️ Capacity is limited • Only 10 total spots • Once confirmed, the list closes You are welcome to bring a friend. Just ensure they are registered in advance so we can accommodate properly. This is a Sunday experience designed with intention — refined, intimate, and built for meaningful connection. 📩 To confirm your seat, message me “Brunch”. — Mamad Your friend & organizer Instagram: @athenslocalstravellers #AthensBrunch #BrunchAthens #AthensCafe #CafeAthens #AthensMeetup #MeetupAthens #AthensEvents #AthensCenter #AthensCity #AthensLife #SundayBrunchAthens #LateBrunchAthens #BrunchTime #CoffeeLoversAthens #TeaLoversAthens #AthensNomads #DigitalNomadsAthens #ExpatsAthens #AthensCommunity #AthensNetworking #SocialAthens #MakeFriendsAthens #AthensSocial #AthensGathering #AthensExperience #BrunchInAthens #AthensFoodies #AthensLifestyle #VisitAthens #LivingInAthens #AthensVibes #Αθηνα #ΚεντροΑθηνας #BrunchΑθηνα #ΚαφεΑθηνα #ΕκδηλωσειςΑθηνα #ΚυριακηΑθηνα #ΠαρεαΑθηνα #ΝεεςΓνωριμιες #ΚοινωνικαEvents #ΑθηναCenter #MeetupΑθηνα #DigitalNomadsGreece #ExpatsGreece #NomadsInAthens #AthensSunday #SundayInAthens #BrunchMeetup #AthensLocals #AthensTravellers

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 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 topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

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.transformlabs.com/services)

**Abstract:** The Advanced Photon Source (APS) is an X-ray light source at Argonne National Laboratory where researchers perform imaging, diffraction and spectroscopy experiments at 68 specialized beamlines. APS recently completed a major upgrade that made it the brightest synchrotron in the world and upgraded many of the beamlines to take advantage of the dramatically brighter, more coherent beam. These new capabilities are increasing the facility’s raw data production from <10 PB/year before the upgrade to >100 PB/year once all instruments are back online. To meet this data challenge, the APS Beamline Data Pipeline project team is partnering with beamline staff to develop and deploy science data pipelines that use a common set of open-source software tools (many written in Python) to link instruments with the Polaris supercomputer at the Argonne Leadership Computing Facility (ALCF) for data processing. This talk will describe the APS data systems, our file-based and streaming pipeline templates, and some of the open-source software we use to extract scientific insights from beamline data. **Audience Takeaway:** Open source Python data acquisition and analysis tools are ubiquitous at the APS. Many of the packages that are mentioned can be found at [https://github.com/AdvancedPhotonSource](https://github.com/AdvancedPhotonSource). This is a *hybrid* event. To attend online, join us on Zoom here at 6pm: [https://numfocus-org.zoom.us/j/89399976851?pwd=UEgMUZXdYmKdK1x1dIPL6hwUYnp7NW.1](https://numfocus-org.zoom.us/j/89399976851?pwd=UEgMUZXdYmKdK1x1dIPL6hwUYnp7NW.1) **Sponsor**: Grainger will provide the meeting site, as well as snacks for the onsite participants. * **Address:** 222 W Merchandise Mart Plaza, 18th Floor, Chicago, IL 60654 * **Grainger's Overview:** W.W. Grainger, Inc., is a leading broadline distributor with over $17 billion in revenue. At Grainger, We Keep the World Working® by serving more than 4.5 million customers worldwide with maintenance, repair, and operating (MRO) products and services delivered through innovative technology and deep customer relationships. Our machine learning team builds broadly across search, recommendations, product matching, computer vision, and generative AI. * **Logistics**: To access the Grainger office, we require **first and last names** of those who RSVP'd by **Feb 11**. Please take the main elevators at the center of the Mart. Attendees will then present their **IDs** when they arrive at the front desk on the 18th floor.

**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 **Abstract** TBD **YouTube Link** TBA

**NEW LOCATION: 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). Lonnie Morgan will be presenting information about the DLT Library. "The Python library `dlt` provides a powerful [REST API toolkit](https://dlthub.com/docs/dlt-ecosystem/verified-sources/rest_api/basic) to ingest data. Combined with our [LLM scaffolds](https://dlthub.com/workspace) and [MCP server](https://dlthub.com/docs/hub/features/mcp-server), you can build a custom connector for any of the 8k+ available sources in 10 minutes by following this guide. Building with LLMs is an iterative process. We will follow this general workflow and give practical tips for each step." See Our [Parking Map](https://docs.google.com/presentation/d/1u2A4fLNlxwLJn0KA_hKc8bnFlFHLvsHBDh-_8wzX_tk/edit?usp=sharing) 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 centralohpython@gmail.com

**NEW LOCATION: 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). See the handy Parking Map - we recommend street parking. [Street Parking Map](https://docs.google.com/presentation/d/1u2A4fLNlxwLJn0KA_hKc8bnFlFHLvsHBDh-_8wzX_tk/edit?usp=sharing) 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 centralohpython@gmail.com

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