Big Data

Join us for a focused deep-dive into the **real challenges of working with medical records** — from collection and processing to cleaning and preparing it for ML and AI pipelines. We’ll explore the gaps between clinical workflows and the data that actually gets recorded, and share practical methods, tools, and examples to help you build better models, run stronger research, and streamline development in the medical domain. \*\*\*PLEASE NOTE: all the talks are in Hebrew\*\*\* AGENDA **18:00 Gathering and refreshments** **18:30 Openings Words -** TLV Medical Center * Prof\. Eli Sprecher \| CEO * Shomrat Shurtz \| I\-NEXT Tech Ichilov\, CEO * Michal Shevach\, PhD \| Chief Operating Officer & Business Development at I\-NEXT Data **18:45 The EMR Landscape \- Know Your Enemy \|** Dvir Ben-David, Director of Data & Analytics at TLV Medical Center **19:10 Predicting Expected Surgery Duration \(Use Case\) \|** Amit Rappel, Data Scientist at TLV Medical Center **19:45 What does it really take to put your model into use? from a healthcare organization perspective \|** Stav Devons-Sberro MD, Resident Physician at Clalit Innovation **20:05 Needle in a Full Stack \-Building with Messy Real\-world Healthcare Data \|** Guy Dolinsky, Software Specialist at Sheba AI Center **20:20 Drinks and Sweets** HOW TO GET THERE: * **Parking:** Golda Parking Lot, Berkovitz 7, Tel-Aviv * **Public transportation:** Numerous bus lines, 15 min. walk / 5 min. drive from Hashalom train station * If you need help with access please contact **052-6779595 (Amit)**

We are hosting **Marc Grabanski** 🤩 - don’t miss it! Join us for an evening of focused tech talks, real-world frontend knowledge, and good people. We’ll hear from experienced engineering leaders on modern web practices, then we’ll go live for an online Q&A with Marc Grabanski. You’ll be able to ask him questions in real time. Don’t miss out on this unique opportunity to connect, learn, and celebrate with fellow frontend enthusiasts! This meetup is organized by **[Enpitech](https://enpitech.dev/)**, a frontend-focused team helping startups build reliable, production-grade web products. This special event wouldn't be possible without the generous support of **UVeye**, our gracious hosts. **Agenda:** **18:00** \- Doors open \- Mingling \+ Food **18:30** \- Opening Remarks **18:40** - **Idan Cohen -** Principal Software Architect at UVeye. **Stack-Fluid: Making Backend Feel Like Frontend** As frontenders, we demand visibility and control over our application state. Why accept anything less on the server? If you're sick of diving into the murky backend, this talk is for you. We'll see how Event Sourcing is used to build backend state cleanly, just like in the UI. Learn to expose clear visualization that surfaces process and bugs instantly instead of fishing for logs, and discover the tooling to achieve a developer experience that finally makes infrastructure invisible **19:15 - Gil Fink** \- CEO & Senior Consultant at SparXys **Mastering Task Management in JavaScript** In modern web development, efficient task management is crucial for ensuring smooth user experiences. Long-running JavaScript tasks can block the main thread, leading to janky, unresponsive interfaces. This session will explore the importance of managing tasks and how to allow the browser to prioritize user interactions. We’ll discuss how to defer non-urgent tasks, improve responsiveness, and optimize performance by leveraging the browser’s built-in scheduling capabilities. Join us to learn how to elevate your JavaScript performance game and create more responsive web applications. **19:45 -** 15 minutes Break. **20:00 - LIVE! Marc Grabanski** **& Nir Parisian -** Q&A session with **Marc Grabanski** \- CEO of [Frontend Masters](https://frontendmasters.com/). **When?** Monday, 22 December 2025 - **18:00 We start on time!** **Where?** Aminadav St 21, Tel Aviv-Yafo, 4th floor

TAMI open-fa-sure (Open Night) is a great time to visit the space and get to know how things work. If you want to double check whether someone is in the space, call 03-3726660. ========== TAMI wiki: [https://telavivmakers.org](https://telavivmakers.org) TAMI main Telegram channel: [https://t.me/+0t5M0-jK9iIwZmM8](https://t.me/+0t5M0-jK9iIwZmM8)

במפגש נקרא ונקיים דיון על הספר "אובייקטיביזם הפילוסופיה של איין ראנד", ונמשיך לקרוא את פרק ״אמנות״ את המפגש יוביל אייר רייכל, עמית מרכז איין ראנד בישראל עד כה קראנו בספר "אובייקטיביזם הפילוסופיה של איין ראנד" מעמוד 9 עד עמוד 494. במפגש הקרוב נקרא את עמודים 494 עד 510 **של התרגום החדש לעברית של הספר "אובייקטיביזם הפילוסופיה של איין ראנד" מאת לאונרד פיקוף** ההשתפות כרוכה בתרומה למרכז איין ראנד בישראל. 20 ש"ח למפגש. חינם: למשתתפים שתורמים תרומה קבועה של 50 ש"ח ומעלה בחודש. [קישור לתרומה](https://www.aynrand.org.il/donate) [קישור לרכישת הספר](https://www.aynrandstore.co/product-page/opar) ניתן להשתתף גם מבלי לרכוש את הספר (רכישה בהנחה למגיעים למפגש) מיקום: וויוורק שרונה מרקט הוראות כניסה: יש להיכנס בכניסה א' של שרונה מרקט, מול מסעדת "מקסיקנה" יש דלת לחדר מדרגות, יש לעלות לקומה ה3 ולצלצל לפתיחת הדלת לאייר רייכל 050-5210025. ניתן להגיע באמצעות הרכבת הקלה - תחנת יהודית. למגיעים ברכב, חניה מומלצת ב"חניון פלטיניום" (מופיע בוייז). או בחניון "מילניום" (שקצת רחוק יותר) ב10 ש"ח עם אפליקציית סנטרל פארק. לתיאום הגעה בפעם הראשונה ולמתלבטים ניתן ליצור קשר עם אייר בטלפון ובוואטסאפ 050-5210025

באו לתקן כל מה שלא עובד. יותר טוב אם [צרו איתנו](https://docs.telavivmakers.space/welcome) קשר וספרו לנו מה הולכים לתקן ךפני להגיע. Come to fix together It is much better if you [contact us](https://docs.telavivmakers.space/welcome) and tell what do you want to repair before coming.

こんにちは、よろしくお願いします. קבוצת חברים לומדי יפנית מחדשת מפגשים ומחפשת מצטרפים חדשים. כל הרמות וכל הגילאים מוזמנים — מתחילים ומתקדמים כאחד. נפגשים בקפה לנדוור שרונה ת"א, יום שני 22.12, ב- 18:15. מוזמנים להצטרף 一緒に練習しませんか。 המפגש באווירה רגועה ולא פורמלית. בכל שאלה מוזמנים לפנות אליי בפרטי. לאון.

As real-time systems become the backbone of modern products, the way we design and operate data infrastructure is evolving fast. In this meetup, we’re bringing together experts from Riskified, Confluent, and Wix to show how Apache Flink and Apache Kafka power the next generation of streaming architectures—from resilient, fault-tolerant pipelines and reusable data products to AI-driven decisioning at massive scale. Whether you’re a data engineer, platform builder, or AI-curious developer, this evening will give you practical patterns and fresh ways to think about real-time systems. **Agenda:** 18:00 - 18:30 - Mingling, drinks, and snacks 18:30 - 19:00 - Supercharge Your FlinkSQL Job: Use a Hybrid API Approach to Achieve Perfection - Gal Krispel, Senior Data Platform Engineer at Riskified 19:00 - 19:30 - From Data Mess to Data Products: Unlocking Real‑Time Value with Data Streaming - Ohad Israeli, Senior Solutions Engineer Team Leader at Confluent 19:30 - 20:15 - AI vs. Karen: Building Real-Time Sentiment Analysis Pipelines at Scale - Josef Goldstein, Head of R&D, Big Data Platform at Wix.com 20:15 - More drinks and mingling The talks will be delivered in Hebrew. \-\-\-\-\-\-\-\-\-\-\-\- **// Supercharge Your FlinkSQL Job: Use a Hybrid API Approach to Achieve Perfection - Gal Krispel, Senior Data Platform Engineer at Riskified** Apache Flink’s SQL interface almost sounds like a dream: write standard SQL - get a full-blown streaming app. However, dreams and reality rarely align, and FlinkSQL achieved a questionable level of production readiness. In this session, we’ll explore the known upsides and downsides of FlinkSQL. From the enormous velocity and traction FlinkSQL can create in your organization, to sleepless nights of manual state interventions and unexpected data type inference. The good news is, there are ways to bypass obstacles and tap the most out of FlinkSQL’s benefits by using a Hybrid Flink API approach. We’ll examine the architecture of a fault-tolerant FlinkSQL job (using DLQ), bypass inherent FlinkSQL’s data-type limitations, and finally, show how we can set up our job to handle a massive load. Finally, we’ll also share step-by-step code examples of how to achieve it. ***About the speaker:*** Gal Krispel is a Data Platform Engineer at Riskified, specializing in streaming technologies such as Apache Kafka and Apache Flink. He focuses on building scalable, real-time data pipelines that power Riskified’s core products. Gal is particularly interested in making complex data architectures accessible and efficient across the organization. His work spans real-time analytics, event-driven design, and the seamless integration of stream processing into large-scale production systems. [LinkedIn](https://www.linkedin.com/in/gal-krispel/) **// From Data Mess to Data Products: Unlocking Real‑Time Value with Data Streaming - Ohad Israeli, Senior Solutions Engineer Team Leader at Confluent** This talk shows how organizations can move from brittle, point‑to‑point integrations to a data streaming “central nervous system” that powers reusable, trustworthy data products across both operational and analytical estates. We’ll cover the Stream–Connect–Govern–Process blueprint, pragmatic pipeline patterns into warehouses like Snowflake, and real‑world use cases from fraud detection to personalization—highlighting how reusable data products slash time‑to‑value and operating cost while improving data quality and freshness. Attendees will leave with a practical framework to standardize schemas, materialize real‑time pipelines, and reuse domain data products to accelerate AI/ML and analytics initiatives. ***About the speaker:*** Ohad Israeli is a Senior Solutions Engineer Team Leader at Confluent with 20+ years of experience in data architectures. He helps high‑growth tech teams turn streaming data into measurable outcomes using Confluent. His focus is real‑time, event‑driven architectures, faster paths to production, and reliability at scale. [LinkedIn](https://www.linkedin.com/in/israeliohad/) **// AI vs. Karen: Building Real-Time Sentiment Analysis Pipelines at Scale - Josef Goldstein, Head of R&D, Big Data Platform at Wix** We’ve all heard that “the customer is always right". But let’s be honest, some customers are just impossible to please. What if we could detect them before they turn into ALL-CAPS review bombers, in real-time? In this talk, we’ll walk through how to build AI-powered streaming pipelines using Apache Kafka and Apache Flink that can detect frustrated users and respond in real time at massive scale. We’ll explore how to embed AI models directly into data streams for live inference, discuss the trade-offs between using Large Language Models (LLMs) and Small Language Models (SLMs), and tackle the real-world challenges of latency, scale, and cost optimization in streaming AI architectures. Finally, we’ll demo a live end-to-end example, from data ingestion to AI scoring and visualization, that you can later run on your own setup. ***About the speaker:*** The data and culture guy. Currently leading the Big Data Platform R&D at Wix. Yossi has over 15 years of experience building data intensive SaaS applications and growing the awesome teams that make them. He believes that the secret sauce for creating sustainable complex systems is good design practices, effective communication between people, and automating everything. In his day to day he works tirelessly on building the culture necessary to support these values and propagate them to others, one pep-talk at a time. [LinkedIn](https://www.linkedin.com/in/josefgoldstein/)

We’re excited about the upcoming meetup at Taboola's office! ### Schedule **17:30 - 18:00** – Mingling time! **18:15** – Spark Acceleration: To Spark and Beyond by Michael Taranov (Software Engineer @ Taboola) **18:45** – Distributed computing unpacked: by Meni Shmuali (Co-founder and CEO @ DataFlint) ### ⚠️ Important Taboola requires your **full name** for office entry. Please provide your LinkedIn profile when RSVP'ing for security reasons. Looking forward to seeing you there!

Join the Maakaf open-source community for an exciting evening of deep dives into open-source contributions, distributed storage, and career growth, hosted at the Red Hat offices! **📍 Location:** Red Hat Offices 8 HaPnina Street, Ra'anana, IL ***Free parking starts at 18:00.*** **🗓️ Date & Time:** Wednesday, December 24, 2025 18:00 - 20:45 (Israel Time) \-\-\- **📝 Agenda** 18:00 - 18:30 - **Gathering & Networking** \| Grab a snack\, meet your fellow community members\, and mingle\! \| 18:30 - 19:00 - Talk 1: **The Death of Traditional Maintainers? AI Is Rewriting Open Source** \| Speaker: **Yuval Kashtan**, Ecosystem Engineering. \- AI doesn’t sleep\, but it does open pull requests—lots of them\. This talk breaks down how maintainers can keep their projects sane in a world where bots may be your most active contributors\. Expect practical advice\, real examples\, and a few laughs about the chaos AI brings to open source\. 19:10 - 19:40 - Talk 2: **Ceph and Google Summer of Code \(GSoC\): Open Source Contribution Opportunities \|** Speaker: **Yuval Lifshitz,** Senior Technical Staff Member at IBM. \- Are you looking for the perfect way to integrate significant open\-source projects with career development? This talk will focus on the leading open-source distributed storage system, **Ceph**, a Red Hat's project! As a developer involved with Ceph, I will share the advantages and disadvantages of contributing to this complex project, whether independently or as part of the Google Summer of Code (GSoC) program. GSoC allows students and developers to participate in meaningful open-source projects, receive mentorship from experienced developers, and even get paid for their work! 19:50 - 20:20 - Talk 3: **Technical Career Insights** \| Speaker: **Omer, Recruiter at Red Hat**. \- Omer\, a recruiter from Red Hat\, will share valuable insights and tips on navigating the tech career landscape\, specializing in what open\-source companies look for in candidates\. 20:20 \- 20:45 \-Mingling & Wrap\-Up \| A final chance to chat with the speakers and community before heading home\. \|

## Details 18:00 - Mingling 🎉, SWAG 🎁, pizza 🍕, and beers 🍻 18:30 - 19:45 Lecturers 19:45 - IntelliJ Licenses + Node.TLV 20025 ticket 🎉 (more details in [https://www.nodetlv.com/)](https://www.nodetlv.com/)) ## Full Agenda From: Tal Doron : [Hebrew] **Querying for Evil: Using BigQuery to Find Threats in the SMB realm** This session dives into our practical approach for transforming massive volumes of cloud productivity logs into actionable security intelligence. We'll demonstrate how we leverage Google BigQuery as a highly-scalable data warehouse to store, process, and analyze this data at speed. You'll see how we execute complex, high-performance queries that uncover subtle anomalies, hunt for advanced threats, and provide critical detections to secure our customers. From [Anatol Zakrividoroga](https://www.linkedin.com/in/anatol-zak/overlay/about-this-profile/): [English] **Full-Stack Type Safety Without the Boilerplate: Meet tRPC** Keeping your frontend and backend in sync is hard — especially when API contracts drift, types get out of date, and your IDE stops being helpful. tRPC solves that by letting your backend define procedures that your frontend can call directly, with full TypeScript inference from end to end. In this talk, we’ll explore how tRPC eliminates unnecessary schemas and code generation while still delivering robust, type-safe communication between client and server. You’ll see how to set up a fully type-safe full-stack workflow, catch breaking changes before they hit production, and dramatically reduce the overhead of maintaining APIs. From: [‫Sagi Carmel](https://www.linkedin.com/in/sagicarmel/overlay/about-this-profile/): [Hebrew] **Promise you will learn something new about promises** Most of the time we are using Promises without reeeally understanding it's practical use v.s. what it was before. We will learn in a very interactive lesson the pure basic. Register via Luma -> [https://luma.com/b5bga495](https://luma.com/b5bga495) Kindly be informed that attendance at the meetup is on a first-come, first-served basis until capacity is reached. Although a place has been reserved for you (after click on attend button), please note that it **does not guarantee your spot.**

**TAMI Hacking Nights** \- join TAMI CTF team and practice challenges and CTFs with us \- share your knowledge about ethical hacking techniques and tools \- bring some device to reverse engineer it and explore how it works \- propose a bug bounty program to work on together \- just watch and learn from others The meetings are informal and open to all levels - from total beginners to hardcore CTF veterans. Join our HackaTAMI Telegram channel ([https://t.me/+KAXY_iPcPlpmZTRk](https://t.me/+KAXY_iPcPlpmZTRk)) to discuss what we will do this Tuesday and come to TAMI. ========== TAMI wiki: [https://telavivmakers.org](https://telavivmakers.org) TAMI main Telegram channel: [https://t.me/+0t5M0-jK9iIwZmM8](https://t.me/+0t5M0-jK9iIwZmM8)

Join us for an exciting meetup where we delve into the latest innovations in software testing with a focus on AI technology. Our expert speakers will share insights on how AI is revolutionizing quality assurance, agile testing, and test-driven development. Whether you're a testing professional, developer, or QA enthusiast, this event will provide valuable knowledge and networking opportunities. Don't miss out on this chance to stay ahead of the curve in the world of next-gen quality assurance! The meetup is in-person attendance only at Applitools offices. Address : Abba Hilel 21 Ramat Gan (Bursa) Israel - 16th floor

**TAMI Voice (maintenance hour)** Good time to come and help with cleaning and sorting TAMI stuff for an hour as well as share your thoughts and ideas how to make TAMI a better place! Right after, we have HackaTAMI evening (from 20:00). ========== TAMI wiki: [https://telavivmakers.org](https://telavivmakers.org) TAMI main Telegram channel: [https://t.me/+0t5M0-jK9iIwZmM8](https://t.me/+0t5M0-jK9iIwZmM8)

The December Ohio North Database Training user group meeting will be held on **January 6th, 2025 at 5:00PM**. This will be a **HYBRID** event and we will be joined online by **Jason Romans**. You're welcome to come meet in-person at our meeting location, the offices of Improving at **[6000 Freedom Square Dr,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Unit 110,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Independence, OH 44131](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** [Teams Link ](https://teams.microsoft.com/l/meetup-join/19%3ameeting_N2Q3ODVjM2YtNDQ1NS00MDBjLWI5MzYtNDQ3YmFlZjkzMjAx%40thread.v2/0?context=%7b%22Tid%22%3a%22b966f302-6b93-4686-9041-c084635642c5%22%2c%22Oid%22%3a%2278c760cb-657f-46aa-bd2f-7066d9403bdb%22%7d)if anyone needs it after RSVP-ing for in person. If you would like to subscribe to our email list outside of Meetup, we have changed platforms recently and you will need to register [here in Kit ](https://ohio-north-data-training.kit.com/b8f036f615)instead to receive emails. Agenda: **5:00 PM EST**: Online and in-person meeting begins with a social hour. This is an unstructured hour where you can join us to catch up and meet other group members before the session starts. There will be food brought in for in-person attendees. **6:00 PM EST**: Updates and announcements, followed by our feature presentation. See below for presentation details. **7:30 PM EST**: Optionally after the main presentations, the in-person crowd may go out for snacks and drinks at a local establishment. We hope to see you there! Session Abstract **Data on Fire: A Hands-On Intro to Spark in Fabric** Curious about Apache Spark but not sure where to start? This hands-on session introduces you to Spark in Microsoft Fabric Notebooks—a powerful and accessible way to process and analyze big data using familiar tools in the Microsoft ecosystem. We’ll break down key Spark concepts like distributed computing, DataFrames, and lazy evaluation, then show how they come to life inside Fabric’s notebook experience. You’ll see practical demos that cover loading, transforming, and analyzing large datasets—while leveraging Fabric’s modern data stack, including OneLake, Dataflows, and Pipelines. You’ll also learn how to choose between Spark and pure Python notebooks in Fabric, based on execution needs, data integration, and use case fit. Whether you're a SQL pro, BI developer, or data engineer, this session will give you the tools and confidence to start using Spark in your own projects—no cluster management required. \*Please note, that we will be using Microsoft Teams for the online portion of this meeting. You may want to join a few minutes early to ensure you do not have any issues. If you are attending in person, there are large TVs at the office, and you do not need to bring a laptop or use Teams.

Monday December 29th at 6PM we'll be meeting up dinner at the Pies & Pints at Easton. Feel free to bring guests. Sandwiches run about $15 and large pizzas run $20-30.

**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)

**Caller: Gaye Fifer** **Band: Hot Coffee Breakdown** **Big Scioty Contra Dance** **temporarily returning to our long ago location for Jan-March - First Congregational Church, 444 E. Broad St., Columbus 43215** WHAT IS CONTRA DANCING? Picture the Grand Ball scenes like you’ve seen in period films such as “Pride and Prejudice”, where the dancers are lined up in long lines, across from each other. That’s English Country Dancing, the predecessor of contra dancing. Now, add moves like “swing your partner” and “do-si-do,” like you’ve seen in square dancing. Set it to fabulous, high energy, live music with fiddles, guitars, percussion and more, alá “Riverdance.” Finally, set the whole scene down in the middle of Woodstock, with a hip, groovy atmosphere, a bit of tie-dye, and hints of counter-culture attitude. THAT’s Contra Dancing! Wear cool and comfortable clothes (you will get warm) and clean shoes that won't mark up our nice wood floor. Be sure to come for the beginner's lesson from 7:30 - 8:00, followed by dancing 8:00 - 10:30. All dances are taught; we will help you learn! Beginners always welcome, no need to bring a partner. Cost is $10.00 adults, $5.00 ages 12-26. Under 12 free. Free parking in church lot. For more information contact me or check out our website: [www.bigscioty.com](http://www.bigscioty.com/) Please bring your own refillable water bottle. Snacks to share are always welcome!

Join us for lunch at True Food Kitchen in Easton as we celebrate the New Year and our friendships!