Android Development Operating Systems Technology

We've got 2 brilliant lectures on real production case studies on reducing memory footprint by order of magnitudes. One from DoubleVerify, using hackie but efficient data structures, and the other from Next Insurance with 4 real world methodologies shown on stage. Thanks to **DoubleVerify** for sponsoring and hosting the event! **AGENDA** 18:00–18:30 **Mingling, food, and drinks** 18:30–18:40 **Opening words** 18:40–19:25 **Beautiful Code Is Overrated: How "Ugly" Engineering Saved Geo at Scale / Alex Cherny - DoubleVerify** 19:30–20:15 **Bulletproof Cookbook to Reduce Your Service's Memory** **/ Haim Yadid - Next Insurance** **Beautiful Code Is Overrated: How "Ugly" Engineering Saved Geo at Scale** We often celebrate clean, elegant architecture, but when data grows 30× overnight, beauty doesn't keep the lights on. This talk walks through a real-world case study of how the Geo traffic service at DoubleVerify broke under 500M IP ranges and how a brutal, byte-level approach outperformed every elegant solution. I'll share the challenges, trade-offs, and the unconventional design choices that helped us slash ramp-up time from 70 minutes to under 3 and memory from 193GB to 13GB. Sometimes, "ugly" is what scales. **Alex Cherny / DoubleVerify** Alex Cherny is a Director of Software Engineering at DoubleVerify, where he leads large-scale Traffic systems operating at millions of requests per second. He has extensive experience building and optimizing JVM-based distributed systems under strict latency, memory, and reliability constraints. Alex focuses on pragmatic performance engineering and believes that clean abstractions are valuable—until scale forces you to break them. **Bulletproof Cookbook to Reduce Your Service's Memory** In recent months, I’ve been working on a Java service that constructs and processes large in-memory object graphs. The memory consumption has become substantial. As a result, through a systematic analysis and targeted optimizations, I have managed to cut the memory footprint by more than 60%. Leading to cost reduction. In this session, I’ll guide you through the journey - from identifying the memory issues using Eclipse MAT to implementing practical optimizations that led to these savings. You’ll learn how to apply similar techniques to your own services to reduce resource usage and improve performance. At the end of the talk, I will also mention several optimizations that improved runtime performance by a factor of 4. **Haim Yadid / Next Insurance** A software engineer with over 30 years of experience in various technology fields: software development, team management, software architecture, HPC and algorithmic research. In my day job I work in Next Insurance as an engineering fellow where I am involved in numerous cross R&D strategic projects. Before that has been focusing for 8 years on Java platform performance optimization as an independent consultant and was involved in more than a dozen optimization projects. I am a Java Champion and one of the founders of Java.IL, the Israeli Java user group. **FOOD** Light food, light drinks, and beer will be served courtesy of **DoubleVerify**. **RECORDING** We are recording, as always, this meetup and uploading it to our YouTube channel (be sure to subscribe), but please keep in mind asking questions about stuff you don't understand is only possible when you attend the live event. **ADDRESS** Alon Tower 2, Yigal Alon 94, Tel Aviv Floor 27

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)

**מה בתוכנית?** 18:00-18:25 – התכנסות, כיבוד ומינגלינג 18:25-18:30 – פתיחה: מרים ומני 18:30-18:50 - מה צפוי לנו בגרסה 4 של האדיטור? מרצה: רועי טל 18:50-19:10 – הפסקה ומינגלינג 19:10-19:40 -עשה זאת בעצמך: כלים להכוונת מודלים של שפה לתשובות נכונות פרויקט אישי להוספת נתונים מובנים בעזרת פורטל המפתחים של יוסט (LLMs,Structured Data,Yoast Developer Portal) מרצה: ורג׳ה דאס ורג'ה עובדת כמהנדסת תוכנה ב-Yoast והרצתה במספר כנסים על איכות קוד, פיתוח בוורדפרס ו-SEO. היא תורמת לקוד פתוח ומתעניינת בכלים וטכניקות לייעול כתיבת קוד ושיפור איכות הקוד. 19:40-20:00 – סיכום ומינגלינג סיום Event will be held in Hebrew. 18:00–18:25 – Arrival, refreshments and mingling 18:25–18:30 – Opening remarks: Miriam & Menny 18:30-18:50 - What's in store with Elementor V4? 18:50–19:10 – Break & mingling 19:10-19:40 - Do it yourself: tools for guiding LLMs toward correct answers - a personal project for adding Structured Data using the Yoast Developer Portal Speaker: Vraja Das - Vraja works as a software engineer at Yoast and has spoken at several conferences about code quality, WordPress development, and SEO. She contributes to open source and is interested in tools and techniques for streamlining code writing and improving code quality. 19:40–20:00 – Closing remarks & mingling

לצפייה במפגשים הקודמים: [https://www.youtube.com/playlist?list=PLWYO6ItABnqsaUHKt7BXFaZyc319UOHDp](https://www.youtube.com/playlist?list=PLWYO6ItABnqsaUHKt7BXFaZyc319UOHDp) יום שני נפגשים בשרונה להמשיך לקרוא יחדיו ולנהל דיון על הספר: **The Ominous Parallels** נכתב על ידי לאונרד פיקוף ויצא לאור בשנת 1982. הספר סוקר את התרבות והאקלים הפילוסופי בגרמניה שהוביל לעליית הנאציזם ולשואה. הספר מציג כיצד תהליכים תרבותיים ופילוסופים דומים מתחוללים בארה״ב ובמערב. את הספר נקרא באנגלית והדיון יתקיים בעברית. את המפגש יוביל אייר רייכל, עמית מרכז איין ראנד בישראל 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) מלאי ספרים לרכישה אמור להגיע בקרוב. 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

\#\# בנה מחשב משלך בלי לקנות כלום\! \*\*רוצה לחסוך כסף ולבנות מחשב משלך?\*\* \*\*הצטרף לקורס בנית/הרכבת מחשבים ייחודי מבוסס על שימוש בזבל דיגיטלי ותוכנה חופשית!\*\* \*\*מה תקבלו?\*\* \* \*\*מחשב ניח שלם, פעיל ועובד\*\* שתיקחו הביתה בסוף הקורס. \* ידע שלם בבניית, הרכבת, התקנת והפעלת מערת הפעלה גניו/ לינוקס תוכנות מחשב \*\*מאפס\*\*. \* \*\*כלים ושיטות\*\* שיאפשרו לכם לתחזק ולתקן את המחשב שלכם בעתיד \*\*בלי צורך לקנות כלום\*\*. \* \*\*הדרכה מקיפה\*\* כיצד להשיג חלקים במחירים זולים או בחינם. \* \*\*קורס מותאם לכל אחד\*\*, ללא צורך בידע קודם. \*\*משך הקורס:\*\*עד 4 מפגשים שתאריכם כבעים במפגש הראשון. \*\*עלות:\*\* 300₪ ! כתרומה Build Your Own Computer Without Buying Anything! Want to save money and build your own computer? Join our unique computer building/assembly course based on the use of digital waste and free software! What will you get? A complete working desktop computer that you will take home at the end of the course. All the needed knowledge of building, assembling, installing, and running GNU/ Linux computer software from scratch. Tools and methods that will allow you to maintain and repair your computer in the future without having to buy anything. Comprehensive guidance on how to obtain parts at low prices or for free. A course tailored for everyone, with no prior knowledge required. Course duration: up to 4 sessions. Dates are decided according to your prefernces. Cost: 300₪! As a donation to TAMI.

Embedded Israel and RISC-V International are happy to invite you to a joint event, this February in Bar-Ilan university. Agenda: 16:30 - 17:00 Networking 17:00 - 17:30 RISC-V Overview 17:30 - 18:00 RISC-V at Speedata 18:00 - 18:30 RISC-V at NVIDIA - Elad Perez & Adi Maymon 18:30 - 19:00 Tesla RISC-V Chip and other Automotive/HPC/AI RISC-V solutions 19:00 - 20:00 Pizza & Beer (Thanks to Synopsys) To attend the event you have to also register here: [https://community.riscv.org/e/mrf3fe/](https://community.riscv.org/e/mrf3fe/)

**Join Us for the next Israel LLVM Meetup!** We’re thrilled to invite you to an exciting evening, where we’ll dive deep into cutting-edge compiler technologies and hardware-aware optimizations. This meetup brings together the LLVM community for insightful talks, networking, and discussions on the future of compiler infrastructure. Expect a diverse lineup of sessions covering Triton, MLIR, and LLVM optimizations powered by hardware metrics — perfect for compiler developers, performance engineers, and anyone passionate about high-performance computing. 📅 **Date & Time** **February 18th, 2026** • **17:00** – Arrival & Networking • **17:30** – Talks Begin • **19:00** – Wrap-up 📍 **Venue** [Jem’s Hertzliya](https://share.google/5taousLhsVfY7ox0r) 🎤 **Speakers & Topics** **• Jonathan Cohen - Compiler Engineering Manager - Apple** Title: “Supercharging Compiler Optimization Remarks with Hardware Metrics” Abstract: This session demonstrates how to turn hardware counters with compiler optimization remarks into performance wins. It combines performance analysis metrics with enriched Optimization Remarks to debug and mitigate performance bottlenecks - a challenging task for compiler developers or performance engineers. **• Michael Zuckerman - AI SW Engineering Manager – Majestic Labs AI** Title: “Triton for RISC-V: Bridging PyTorch to RISCV with MLIR & LLVM” Abstract: Triton is a powerful open-source programming model originally developed to generate highly optimized GPU kernels for deep learning workloads. In this talk, I present an extension of Triton to target the RISC-V vector architecture, using MLIR and the LLVM toolchain as the compilation backbone. This work creates a practical bridge between modern PyTorch-based machine learning frameworks and emerging RISC-V hardware platforms, enabling efficient and portable execution of AI workloads beyond traditional GPUs. The proposed integration allows PyTorch models to be lowered end-to-end into RISC-V vector instructions, leveraging open compiler infrastructure to significantly reduce the effort required to enable new hardware targets. I will show how Triton kernels, TorchDynamo graph capture, TorchInductor scheduling, and MLIR/LLVM code generation were aligned into a unified backend that supports rapid bring-up, iterative optimization, and transparent performance tuning. This talk demonstrates how an open, modular compiler stack can accelerate the adoption of flexible hardware architectures in machine learning, while preserving high performance and developer productivity.

**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)

Come every third Tuesday of the month, install [Kali ](https://www.kali.org/get-kali/#kali-live)and last [Debian stable release](https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-13.1.0-amd64-netinst.iso), and meet the HackTAMI squad. The workshop is intended to those who want to become [Free ](https://en.wikipedia.org/wiki/Free_software)Linux advanced users and take most of the juice of their computers. The installation will be performed with a separate /home directory to make it coexist with other OS. A 50₪ donation to TAMI will be welcomed. בואו כל יום שלישי בשבוע השלישי של כל חודש והתקינו את [קלי](https://www.kali.org/get-kali/#kali-live) ואת[ גרסה יציבה של](https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-13.1.0-amd64-netinst.iso)[ דביאן](https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-13.1.0-amd64-netinst.iso "https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-13.1.0-amd64-netinst.iso"). הסדנה מיועדת למי שרוצה להפוך למשתמשים מתקדמים של לינוקס [חופשי ](https://en.wikipedia.org/wiki/Free_software)ולנצל את רוב התועלת של המחשבים שלהם. ההתקנה תתבצע עם תקייה /home נפרדת כדי לאפשר לעבוד עם מערכות הפעלה אחרות. תרומה של 50₪ לתאמי תתקבל בברכה.

We’re excited to invite you to a special Angular TLV Meetup featuring Angular Team updates and more. 📅 Date: February 18, 2026 🕕 Time: 6:00 PM 📍 Location: Palo Alto Networks Offices Yigal Alon St 94a, Tel Aviv, 6789155 Floor 12 🎟️ Free! 🎤 Talks & Speakers 18:00 – Gathering & Snacks 18:30 – 19:00: Angular Team Updates – Web Codegen ScorerEliran Eliassy – CEO & Founder\, E\-SQUARE\.io \| Google Developer Expert \(GDE\) 19:00 – 19:30: "It’s Not You, It’s the Library" – Escaping the Black Box TrapTal Bare – Senior Engineer, Palo Alto NetworksShoval Harel – Senior Engineer, Palo Alto Networks 19:30 – 19:45: Break 19:45 – 20:15: "Why Don't You Get It?" – Why Genius Agents Fail at Basic Web Tasks Lion Levy – Senior Engineer, Palo Alto Networks Hosted with our partners: E-SQUARE.io, Palo Alto Networks, and GDG 🤝 🔗 PLEASE FILL OUT THE FORM BELOWhttps://forms.gle/zwzCiH8iGVTr4Qtd7 Seats are limited, and pre-registration is required. Agenda *** Hosted By Eliran Eliassy, GDG Organizer Shahar Kazaz, GDG Co-Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-tel-aviv-presents-angular-tlv-february-2026-meetup/.

**Pixellot AI Arena** *Capturing the Hero Moments* **AI in Product Teams** **With Ronen Lago, PSG** 17/2/2026 11:00 – 13:30 A series of events bringing thought leaders, innovators, and techies together to exchange ideas and formulate the future. LANDMARK A1 – Ha’arba’a 13, Tel Aviv - Floor 27th

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)

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)

* Who Can Attend \* The Central Ohio .Net Developers Group meetings are free and open to the public! All developers; professional, student, and hobbyist are welcome and encouraged to attend. * When we meet \* The Central Ohio .Net Developers Group meets on the 4th Thursday of every month. * Where we meet \* Please check our Meetup group link below for the latest location details! * Join our Meetup Group \* https://www.meetup.com/Central-Ohio-NET-Developers-Group-CONDG/

**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

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

Meeting @ Improving's office in Downtown Columbus, near Cosi. Parking is paid, food & drink are free! This time we're hanging out after the long winter break. We are going to look at a group-member's project used to help learn the fundamentals of Go, and if time allows, we can take a look at how we like to build Go projects using AI.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. (NOTICE - Location change!) This session will be at the Karl Road Branch of the Columbus Library in the Conference Room 2.