Singles

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)

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

**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

EVENT https://www.facebook.com/share/1C4B5rBDYC/ FACEBOOK GROUP https://www.facebook.com/groups/discotektelaviv/?ref=share&mibextid=NSMWBT MESSENGER COMMUNITY https://m.me/cm/AbYzNCodhnb8ub5M/?send_source=cm%3Acopy_invite_link

Join us in the search for the true, the good and the beautiful. We will be reading and discussing a fascinating philosophical text in English. Welcome anyone interested in understanding life more deeply, regardless of age or prior knowledge. The love of wisdom is enough. Please join our WhatsApp group: https://chat.whatsapp.com/CDjIJ8i1LZsJ2a7WJXFxhG?mode=wwt Sapere Aude! (Kant's Motto: Dare to Think!)

Funding for Israeli Mental Health startups grew 150% last year, and the number of companies increased by 50% ('source: StartupNation Central). That surge in a reaction to October 7th. But what comes next? The sector is at a *crossroads*. The focus is now monetization, partnerships and go-to-market. On Sunday, February 22nd, join thought leaders, including from the US, providing insights about mental healthtech go-to-market, partnerships and investment. Register **[HERE](https://luma.com/mjulduzo)** **Agenda**: \- Israel 2026 Mental Health Landscape \([Gila Tolub](https://www.linkedin.com/in/gtolub/)) \- US Go\-To\-Market \([Esther Howard](https://www.linkedin.com/in/esther-howard-7352b3b3/)) \- MAFAT / IDF Perspective \([Alona Barnea](https://www.linkedin.com/in/alona-barnea/)) \- Investors Perspective \(VC panel: [Lena Rogovin](https://www.linkedin.com/in/lena-rogovin-b003b7/), [Josh Schulman](https://www.linkedin.com/in/joshschulman/)) \- Moderator: [Goel Jasper](https://www.linkedin.com/in/goel-jasper/), FINN Israel **Venue**: Herzog law firm, 6 Sadeh Street, Tel Aviv **Time**: 9am doors open; 9:30-11:30 content Step away from the desk and engage with investors and global thought-leaders. Join "BrainHealth at the Crossroads", Feb 22nd, 9-11:30am in Tel Aviv.

Join the Fluent community for a night of language, culture, and connection! Practice over 12 languages with native speakers in a fun, multicultural atmosphere—plus enjoy drinks and meet people from all over the world! 🗣️🍻🎊 🔹🔹🔹🔹🔹🔹🔹🔹🔹🔹 🎟️ Ticket Prices Available online until 15:00 on the day of the event: Ticket + soft drink – 60 NIS Ticket + beer/glass of wine – 70 NIS [Get your ticket here](https://www.fluent.community/fluent-events/language-exchange-2102) 🚪At the door: Ticket + soft drink – 65 NIS Ticket + beer/glass of wine – 75 NIS 🔹🔹🔹🔹🔹🔹🔹🔹🔹🔹 🎫 Want to become an Ultimate Fluenter? Pay less for every event and join our exclusive circle of loyal members by getting a Frequent Fluent Card! [Get a Frequent Fluent Card](https://events.fluent.community/credits-store/) 🎫 10-entry card – 420 NIS 5-entry card – 240 NIS Drinks not included, but cardholders get discounted drink tickets at the entrance! 🔹🔹🔹🔹🔹🔹🔹🔹🔹🔹 ✨ Want to join for free? Become an Ambassador! Ambassadors help others practice their native language for the first half of the evening, and then enjoy practicing other languages during the second half. It’s a great way to give and get value—and attend for free! 😃

**ערב יזמים ממוקד \- גיוס הון \| מענקים \| ייעוץ עומק** אנחנו מזמינים אתכם לערב ייחודי ואינטימי אצלנו במשרדים, המיועד ליזמים וחברות שנמצאים לקראת או במהלך סבב גיוס, ובנקודת החלטה אמיתית לגבי עבודה מול משקיעים ו/או הגשת מענקים. זה לא ערב של הרצאות ארוכות. זה לא נטוורקינג כללי. זה ערב שנועד לעשות סדר בבלגן, להבין את ההלימה בין גיוס הון, מענקים וייעוץ ולבחור מסלול אחד נכון שמתאים לשלב שבו החברה נמצאת. הערב מתקיים בשיתוף פעולה בין: **• Nexus Club – חיבורים ממוקדים בין יזמים למשקיעים וליווי בצמתי גיוס** **• Impactory – ייעוץ והובלה מקצועית להגשת מענקים מול רשות החדשנות** ### מה בתוכנית? ▪️ נטוורקינג פתיחה ממוקד – יזמים בשלב דומה ▪️ הרצאות קצרות (15 דק’ כל אחת): – איך באמת מאיצים תהליך גיוס הון ממשקיעים – האתגרים האמיתיים בקבלת מענקים ומה נדרש בפועל ▪️ ייעוץ עומק ממוקד לאחר ההרצאות: מפגשי ייעוץ קצרים עם מומחים בחדרים ייעודיים: – גיוס הון ממשקיעים וקרנות – מענקים ותהליכי תמיכה בשולחנות עגולים עם יזמים בשלב דומה לשלכם 📌 הרישום לייעוץ מתבצע במקום – לפי סדר הגעה. ### למי זה מתאים? • חברות עם מוצר לאחר הוכחת היתכנות • ותק של שנה לפחות • חברות לקראת / במהלך סבב גיוס • חברות ששוקלות או נמצאות בתהליך הגשת מענקים ⚠️ מספר המקומות מוגבל – כדי לאפשר שיח איכותי, ייעוץ אמיתי וערך מעשי יש למלא את השאלון: [https://forms.gle/5Kr4EPuMWo1fsSWA8](https://forms.gle/5Kr4EPuMWo1fsSWA8) ## **\*\*English\*\*** **Focused Founders Evening** **Fundraising \| Grants \| Strategic Advisory** **We invite you to a unique, intimate evening at our offices, designed for founders and companies who are preparing for or already in a fundraising round, and are facing real decisions around working with investors and/or applying for grants.** **This is not a long-lecture event.** **This is not general networking.** **This is a focused evening created to cut through the noise, understand how fundraising, grants, and advisory should align, and choose one clear, stage-appropriate path forward.** **The event is held in collaboration with:** **• Nexus Club – curated founder–investor connections and fundraising guidance** **• Impactory – professional advisory and execution for grants with the Israel Innovation Authority** ### **Agenda** **▪️ Focused opening networking – founders at similar stages** **▪️ Short talks (15 minutes each):** **– How to truly accelerate a fundraising process** **– The real challenges of securing grants and what it actually takes** **▪️ Post-talk focused advisory sessions:** **Short consultations with experts in dedicated rooms:** **– Fundraising from investors and funds** **– Grants and support programs** **Roundtable discussions with founders at a similar stage** **📌 Advisory sessions are booked on-site, based on availability.** ### **Who should attend?** **• Companies with a product after proof of feasibility** **• At least one year of operation** **• Companies preparing for or currently raising a round** **• Companies considering or applying for grants** **⚠️ Attendance is limited to ensure meaningful discussion, hands-on guidance, and real value. Pre-registration is required and subject to approval - [https://forms.gle/YfSHTTieymnhg9u67 ](https://forms.gle/YfSHTTieymnhg9u67)**

***\*\*To register for the meetup, please register via Luma using the link below\*\**** Register via Luma -> [https://luma.com/1vzetmmg](https://luma.com/qxaze4a6) 18:00 - Mingling 🎉, SWAG 🎁, pizza 🍕, and beers 🍻 18:30 - lectures 19:50 - Give a way one Node.TLV 20025 ticket 🎉 # [Daniel Clayborough](https://www.linkedin.com/in/daniel-clayborough-894496103/overlay/about-this-profile/?lipi=urn%3Ali%3Apage%3Ad_flagship3_profile_view_base%3BVog6gDcMRzqVPME9ZEkz1w%3D%3D) \| **Frontend Team/Tech Lead at Agora** \| Standardizing Large JS Codebases in the AI Era # ​\*\*[Ariel Shulman](https://www.linkedin.com/in/ariel-shulman/overlay/about-this-profile/) \|\*\* Software Engineer at Factify \| **Postgres Beyond the Rows** ​You’re likely underutilizing the most powerful piece of your infrastructure. ​While most devs treat Postgres as a reliable container for rows and columns, it’s actually a sophisticated engine capable of handling complex data challenges. ​From mastering deep, nested hierarchies with lightning-fast traversal to image deduplication and similarity search at scale (no vectors!). ​In this session we will move beyond standard queries to show how built-in indexing and specialized data types can replace external microservices, and simplify your stack. Come see why the most powerful tool in your stack is likely the one you’re already running. ## ​\*\*[Nadav (Kremer) Beker](https://www.linkedin.com/in/nadav-kremer/overlay/about-this-profile/) \|\*\* Tech Lead at **Finonex**\| **How Observability Killed My Performance** ​Logs, traces, metrics, correlation IDs — observability promises clarity when systems get complex. But in Node.js, these tools are not free, and used without care they can become a serious performance bottleneck. In this talk, I’ll share real-world lessons from production Node.js systems where adding observability actually degraded performance. We’ll look at the hidden costs of logging, async logging, AsyncLocalStorage, distributed tracing, and high-cardinality metrics — and why these issues often only appear under real load. ​ ​-------------- 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.**

Date: Sunday 22/February @ 16:30 Location: Engineering @ Bar-Ilan University, building 1103, Hall 42 (near 22) 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/)

Social Sips & Bites is proud to bring Quantum Leap - a top-tier, professional 80s tribute band that knows exactly how to take over a room. This isn’t nostalgia on shuffle. This is precision musicianship, powerhouse vocals, and nonstop momentum. **Quantum Leap** delivers the biggest dance, pop, rock, and R&B hits of the 80s with the kind of polish and energy you expect from a real concert - not a cover night. Tight transitions. No dead space. Every song hits. Why this band? • They keep the dance floor packed from the first song • They play hits you actually want to hear • They read the room and turn it up at the right moments • They don’t slow the night down, they build it If you love live music that feels alive, loud, and intentional, this is your night. Come ready to dance. Come ready to sing. Come ready to say, “okay… one more song.” **Quantum Leap + Social Sips & Bites** When the band is this good, everything else follo

Join us for this exciting painting workshop in NOVA area. I am a [professional artist/university prof.](https://www.nataliyagurshmanpaintings.com/) and I will teach you ins and outs of palette knife painting. You will learn new techniques, and create a beautiful landscape painting to take home. No experience required, just desire to explore something new and meet other creatives, and enjoy a sip of wine (not included in the ticket). All of the art supplies are provided. Please [sign up at the link below.](https://www.eventbrite.com/e/creative-singles-40-plus-painting-workshop-with-live-instruction-tickets-1980791522766?aff=oddtdtcreatorte) https://www.eventbrite.com/e/creative-singles-40-plus-painting-workshop-with-live-instruction-tickets-1980791522766?aff=oddtdtcreatorte I am looking forward to meeting everyone. Bring your friends and family.

**Leave behind the rushed pace of traditional speed dating and embrace a more relaxed approach to meeting new people, facilitated by a [Dating Coach](https://lovedandfulfilled.com/) with prepared Conversation Icebreakers.** 💕 All ages! 💕Different sections for different age groups. Must[ ](https://www.eventbrite.com/e/1972845805913?aff=oddtdtcreator)**[RSVP HERE](https://www.eventbrite.com/e/1981447001320?aff=oddtdtcreator)** (Event is posted on multiple platforms, attendees list on Meetup does not reflect the actual number of RSVPs) * Easy-going meet & greet to socially warm up * Prepared questions to facilitate meaningful conversations and to assess compatibility * Engaging discussions in small groups * Opportunity to talk to every single person present * Stress free matchmaking by the coach after the event (no need to ask for contact info on the spot, you will get it after the event) * Fun games to play together Whether you are an introvert or an extravert, welcoming and easy-going environment is guaranteed. You won't have to sweat the small talk, and event will be structured to make connecting effortless. **Cost:** $35 (Pay through[ ](https://www.eventbrite.com/e/1299434316019?aff=oddtdtcreator)**[Eventbrite](https://www.eventbrite.com/e/1981447001320?aff=oddtdtcreator)**[ ](https://www.eventbrite.com/e/1981447001320?aff=oddtdtcreator)or **Venmo** to @Irena-Polyakova (1469) include your email address if using Venmo) **Location**: Uncle Jalapeno Restaurant in Herndon. **Time**: 3:00 pm \~ Irena

**Did you know that female friendships are critical for every woman's well-being and longevity? Scientifically proven fact!** *Ladies, join me for a special gathering, let's celebrate the power of female friendships* *and* *empower each other through sharing our stories 💕* As a host & [Life and Relationship Coach](https://lovedandfulfilled.com/), I will be there to create a safe, fun space to truly connect and have conversations about life & love. Please[ ](https://www.eventbrite.com/e/1982403723903?aff=oddtdtcreator)**[RSVP HERE](https://www.eventbrite.com/e/1982403723903?aff=oddtdtcreator)** **When**: Feb 28th at 3:00 pm. **Location:** Ted's Bulletin - Front Bar Area reserved for us. Send me a direct message (571-315-1469) if you are running late and please only RSVP if you are coming. I look forward to seeing you there. \~ Irena

**\*\*\*TO ATTEND THE EVENT, YOU MUST PURCHASE TICKETS THROUGH OUR WEBSITE \*\*\*** [https://www.pre-dating.com/baltimore-speed-dating/?utm_source=Meetup&utm_medium=event_listing&utm_campaign=Meetup](https://www.pre-dating.com/baltimore-speed-dating/?utm_source=Meetup&utm_medium=event_listing&utm_campaign=Meetup) Hosted by Pre-Dating Speed Dating, the experts, bringing people together since 2001! Our events have been featured on CNN, CBS, Axios, Miami New Times, TLC's 90 Day Fiance - The Single Life, Tampa Bay Times, Southbend Times, Citylink Magazine, Essence, The Wall Street Journal, Best of Baltimore, AM New York, Chicago Tribune, WINK FM, Woman's World Magazine, and 100s more -- but come see for yourself! Join us for a night of fun, flirtation, and possible romance at our singles speed dating event! If you're tired of swiping left and right on dating apps, speed dating is a great way to meet new people in person, in a relaxed, safe, and comfortable environment. **HOW IT WORKS:** We'll introduce you to at least 5, and up to 12 - or more - single women or men. Spend a little time with each one, during a series of 6-minute Pre-Dates. Then tell us who you'd like to speak with again & we'll do the rest! It's the modern, civilized, effective, and fun way to meet other professional-level singles. If you're finished with the games and ineffectiveness of online dating and apps, join us to share a wonderful evening of enjoyable conversation with interesting people... and maybe something magical will happen! **GET TICKETS:** A **Meetup RSVP is not a ticket**, you must purchase on our website. [https://www.pre-dating.com/baltimore-speed-dating/?utm_source=Meetup&utm_medium=event_listing&utm_campaign=Meetup](https://www.pre-dating.com/baltimore-speed-dating/?utm_source=Meetup&utm_medium=event_listing&utm_campaign=Meetup) Use Code MATCH5 for $5 off! **DOES IT WORK?** Yes! According to the New York Times, at a speed dating event, people like 2-3 out of 10 people they meet. Online daters only match with 1 in 100 or fewer of the profiles they study. This is the best way to meet new people, and it works! Just ask the thousands of people that have met at our events and had successful relationships and marriages. **WHAT DOES IT COST?** We put a lot of time and effort into creating the best singles events possible, so we collect a fee for our hard work. Our events are an excellent value at about $3 per introduction. Get your ticket for the best singles event in town. **NOTE FOR NEWCOMERS:** We post our events on various platforms. Our events often sell out, so expect plenty of fellow singles, regardless of the numbers you see here :) So what are you waiting for? Join us for some fun conversation with great new people... and maybe something more! Who will you meet? **GET TICKETS:** [https://www.pre-dating.com/baltimore-speed-dating/?utm_source=Meetup&utm_medium=event_listing&utm_campaign=Meetup](https://www.pre-dating.com/baltimore-speed-dating/?utm_source=Meetup&utm_medium=event_listing&utm_campaign=Meetup)

Pool Boys are back! It's their first show of 2026. Come join us!