MapReduce
Meet other local people interested in MapReduce: share experiences, inspire and encourage each other! Join a MapReduce group.
1,063
members
2
groups
Largest MapReduce groups
Newest MapReduce groups
Frequently Asked Questions
Yes! Check out mapreduce events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the mapreduce events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find mapreduce events near your location here. Connect with your local community and discover events within your area.
MapReduce Events Today
Join in-person MapReduce events happening right now
Radiowe środy SP7HACK
Jesteś pasjonatem radia, elektroniki, lub ciekawią Cię tajniki łączności ? Dołącz do naszego hackerspace, gdzie odkryjemy fascynujący świat krótkofalarstwa! Niezależnie od tego, czy jesteś doświadczonym radioamatorem, czy dopiero zaczynasz swoją przygodę. Przyjdź, posłuchaj, dowiedz się, jak działają anteny, odbiorniki, i nadajniki. Łączymy pasję do techniki z duchem DIY – stwórz z nami coś niezwykłego!
Are you passionate about radio, electronics, or intrigued by the mysteries of communication? Join our hackerspace and discover the fascinating world of ham radio! Whether you're an experienced radio amateur or just starting your journey, come along to listen, learn how antennas, receivers, and transmitters work, and dive into the technical side of things. We combine a passion for technology with the DIY spirit—create something extraordinary with us!
MapReduce Events This Week
Discover what is happening in the next few days
Zen w Hackierspejsie
Zapraszamy na trzy dwudziestopięciominutowe rundy medytacji, w trakcie których będzie okazja doświadczyć swojej pełnej obecności w tym-co-jest z-chwili-na-chwilę.
Rundy rozpoczynamy o 18:30, 19:00 i 19:30 - można dołączyć do dowolnej z nich lub odłączyć się w trakcie przerw pomiędzy nimi. Prosimy o przyjście chwilę przed rozpoczęciem rundy, ponieważ startujemy punktualnie.
Medytacje odbywają się w każdy czwartek na ul. Zielonej 30 w Łodzi w lokalu HSŁ w głębi bramy. Przy bramie prosimy dzwonić pod numer: 42 203 20 50.
Spotkania są otwarte i wszyscy są mile widzani. Jeżeli chcesz zobaczyć, czy medytacja to coś dla Ciebie, temat jakoś z Tobą rezonuje, a może już praktykujesz, przychodź!
Zorganizujemy coś, na czym można usiąść, ale dobrze jest wziąć ze sobą swoją poduszkę do siedzenia lub matę.
Do zobaczenia!
Flutter Łódź - 19 lutego 2026 - Claude Code & Jak stworzyć buttona bez Materiala
*💪 Flutter Łódź to grupa dla osób, które tworzą we Flutterze lub chcą bliżej poznać ten framework. Niezależnie od tego czy masz już bogate doświadczenie, robisz apki mobilne czy webowe, pracujesz w software house czy masz własny produkt. Każdy powód jest dobry by się spotkać, poszerzyć horyzonty i dowiedzieć się czegoś nowego o Flutterze!*
Najbliższe spotkanie już **w czwartek** **19 lutego 2026** godzina **18:00** 🚀
🚨 Uwaga zmiana lokalizacji 🚨
Spotykamy się w **Starej Drukarni**, **Gdańska 130**
👉👉👉 **AGENDA** 👈👈👈
👉 **18:00 Marcin Szałek - Claude Code 101**
O nim: Flutter developer od 2017. Początkowo freelancer, obecnie Flutter dev w brytyjskim startupie Cheddar. Lubi ładne designy, czysty kod, i delegowanie jak najwięcej do LLMów.
Prezentacja: Coraz więcej programistów przechodzi z pisania kodu na rzecz generowania go za pomocą AI. Jednym z narzędzi to umożliwiających jest Claude Code, którego od pół roku jestem wielkim fanem. W prezentacji omówimy czym jest, a czym nie jest Claude Code, omówimy Skille, Sub-agentów, Hooki, Commandy, pluginy, context management i wiele innych rzeczy, o których warto wiedzieć przy używaniu CC.
👉 **19:00 Albert Wolszon** **-** **Jak stworzyć buttona gdybyśmy nie mieli Materiala (albo Cupertino)**
O nim: Flutter GDE. Flutter developer od czasów Fluttera 1.0.0. Najbardziej lubi developować UI i aspekty związane z internacjonalizacją. Odpowiedzialny za tworzenie design systemów LeanCode i kilku dużych klientów. Twórca TMSa dedykowanego Flutterowi. Po pracy lata jako prywatny pilot.
Prezentacja: Korzystając z komponentów dostarczanych przez framework, często nie zwracamy uwagi na niektóre ich istotne elementy, które sprawiają, że są naprawdę godne produkcyjnej apki. W tej prelekcji przejdę przez proces tworzenia prostego buttona we Flutterze, używając wyłącznie najbardziej prymitywnych widgetów, bez korzystania z Materiala, ani Cupertino, jednocześnie dbając, by button pozostał w pełni użyteczny i dostępny.
**🍕20:00 - Pizza i napoje do umilenia rozmów! 🍕**
👉👉👉 **CALL FOR PAPERS** 👈👈👈
Chciałbyś wystąpić na tym lub innym wydarzeniu? Chciałbyś się podzielić swoimi doświadczeniami z Flutterem? Daj nam znać!!! Mamy stale otwarte Call for papers i z przyjmnością Cię wysłuchamy! Formularz zgłoszeniowy: [https://form.typeform.com/to/sNteWH6v](https://form.typeform.com/to/sNteWH6v)
Organizatorzy: Marcin Szałek & [fivedottwelve.com](http://fivedottwelve.com/)
⭐️Do zobaczenia w czwartek!⭐️
Planszówkowanie w Hakierspejsie
Zapraszamy na kolejne spotkanie planszówkowe!
Mamy parę gier w spejsie, ale zachęcam przynieść również własne gry! Chętnie zagramy w coś nowego. Jest też miejsce na zostawienie gier na jakiś czas w spejsie, żeby nie musieć ich targać tutaj co tydzień.
\-\-\-
Zaczynamy o 19:00, ale warto sprawdzić [https://at.hs-ldz.pl](https://at.hs-ldz.pl) – być może ktoś otworzy siedzibę wcześniej. Jeżeli masz problem z wejściem, zadzwoń na 42-203-20-50 albo wejdź na naszego chata (patrz poniżej).
Potrzebujesz więcej informacji? Skontaktuj się z nami na czacie lub mailowo. Szczegóły znajdziesz tutaj:
[https://lodz.hackerspace.pl/](https://lodz.hackerspace.pl/)
Więcej szczegółów uzgodnimy na naszym chacie telegram/matrix:
[https://t.me/hsldz_planszowki](https://t.me/hsldz_planszowki)
[https://matrix.to/#/#hs-ldz-board-games:matrix.org](https://matrix.to/#/#hs-ldz-board-games:matrix.org)
Radiowe środy SP7HACK
Jesteś pasjonatem radia, elektroniki, lub ciekawią Cię tajniki łączności ? Dołącz do naszego hackerspace, gdzie odkryjemy fascynujący świat krótkofalarstwa! Niezależnie od tego, czy jesteś doświadczonym radioamatorem, czy dopiero zaczynasz swoją przygodę. Przyjdź, posłuchaj, dowiedz się, jak działają anteny, odbiorniki, i nadajniki. Łączymy pasję do techniki z duchem DIY – stwórz z nami coś niezwykłego!
Are you passionate about radio, electronics, or intrigued by the mysteries of communication? Join our hackerspace and discover the fascinating world of ham radio! Whether you're an experienced radio amateur or just starting your journey, come along to listen, learn how antennas, receivers, and transmitters work, and dive into the technical side of things. We combine a passion for technology with the DIY spirit—create something extraordinary with us!
MapReduce Events Near You
Connect with your local MapReduce community
Learn all things Data Science and Compete on Kaggle
We will be meeting at Starbucks to learn together. Come with an online class you're already going through or an interest and we will try to connect you with a course where you can learn it. Already have a skill you want to contribute to a Kaggle Datascience competition? We will work on these too! Laptop required :)
ProductTank Wilmington Coming Soon
Join ProductTank Wilmington for an engaging discussion on Product Management across different domains including, but not limited to AI, FinTech, and Healthcare. Whether you're a seasoned product manager or just starting out in the field, this gathering is a fantastic space to learn from the best in the industry and network with like-minded professionals.
**NOTE: This is an open invitation to join ProductTank Wilmington and not an event.**
Native Plant Book Club: Animal, Vegetable, Miracle
Join our partners Watermark Woods Native Plants, Loudoun County Public Library (LCPL), and Birch Tree Bookstore for the Read! Plant! Grow! Book Club, which focuses on native plants, sponsored by Loudoun Wildlife Conservancy and LCPL. At this meeting we’ll discuss the book Animal, Vegetable, Miracle by Barbara Kingsolver. Both memoir and journalistic investigation, this book explores how the Kingsolver family took on a new challenge: to spend a year on a locally -produced diet, paying close attention to the provenance of all they consume. Concerned about the environmental, social, and physical costs of American food culture, they hoped to recover what Kingsolver considers our nation’’s lost appreciation for farms and the natural processes of food production.
You can either buy the book from Birch Tree Bookstore or contact Allison Forbes at [Allison.forbes@loudoun.gov](mailto:Allison.forbes@loudoun.gov) to borrow a copy of the book at the library. There are two ways to participate: attend the event online via the library website or [sign up to participate in person at Birch Tree Bookstore](https://www.birchtreebookstore.com/event-details/read-plant-grow-2026-02-24-18-30).
***Questions:*** *Contact [info@loudounwildlife.org](mailto:info@loudounwildlife.org)*.
SATURDAY Entrepreneurs Networking HourS
All entrepreneurs in the DMV and Midatlantic area are invited! This event is to every and each entrepreneur, from Start-ups to Established; in different industry, sector and specialization to grow, interact, and learn from each other. It is designed to provide a professional environment, to meet other professionals, to broaden one's career. It is also for those interested in careers and are studying or intend to enter the dynamic world of entrepreneurism.
***GRAB A BOOZE OR A BITE AND YOU WILL BE SET TO ENJOY THE EVENT. YOU NEED TO GET AT LEAST A DRINK OR FOOD:) To get the event going and show support. We know that you like our events. P.S. : We have non-alcoholic drinks as well.***
We have a tiny venue and we hit capacity often and early arrival is suggested.
We have the discretion to decide entry.
***HOW IT WORKS : We will try to assign tables by industry/sector/specialization. However we don't guarantee the availability of a partner in that area. PLEASE DON'T FORGET TO BRING YOUR BUSINESS CARDS!***
Rules to abide :
1\. Event is 21\+ \(bring ID\)\.
2\. Be respectful to your counterparts and give them a chance to connect with others as well\.
3\. We all are professionals in one or two fields and be willing to share your knowledge and experience to others and try to accommodate as much as possible\.
4\. If you don't belong the other person's required specialization\, LEAVE THEM ALONE\.
5\. Rude or aggressive members are removed from the group at an organizers discretion\.
6\. This is a face\-to\-face networking event\. DO NOT try to arrange an online meeting\, by using the comment box or direct message\.
7\. Most of our members complained about people writing in the comment box\. Since it sends notification to all attendees\. If you have any questions\, send a message to the organizers\. Don't write in the comment box\.
8\. We have ZERO TOLERANCE for solicitation\. We don't allow anyone to run their own agenda at the Event\. If you are interested to promote/sponsor/collaborate; contact us via \(info@merevents\.com\)\.
9\. When you get there\, we will greet you and take you to your respective group\.
***10\. Please be patient for the first 30 minutes\, up until your language speakers get there and we assign all the tables\.***
\- Come one\, come all; this is the most friendliest event you have ever attended\!
\- Feel free to invite your friends\. They don't necessarily have to be a member
***AFTER THE NETWORKING, WE WILL HIT THE DANCE FLOOR. BRING YOUR DANCING SHOES!:)***
***N.B. : We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via ([info@merevents.com](http://info@merevents.com/)).***
Let's try KPot Korean BBQ & Hot Pot
KPot Korean BBQ and Hot Pot opened in November. I have not eaten there but have a 20% off coupon for groups of 8 or more. Why not give it a try?
**THE RULES:**
* Everyone at the table must have the Korean BBQ and Hot Pot option.
* The cost will be approximately $30 plus tax and tip.
* I will pay the entire food bill and EVERYONE will pay me back in Cash or Venmo.
* Drinks will be paid for by the individuals who ordered them.
* Space is limited! If you sign up and then can't make it please update your RSVP.
* Do not sign up if you do not agree to the rules listed above.
[Click here to view their website](https://thekpot.com/)
Let's be adventurous and have fun!
FRIDAY Entrepreneurs Networking HourS
All entrepreneurs in the DMV and Midatlantic area are invited! This event is to every and each entrepreneur, from Start-ups to Established; in different industry, sector and specialization to grow, interact, and learn from each other. It is designed to provide a professional environment, to meet other professionals, to broaden one's career. It is also for those interested in careers and are studying or intend to enter the dynamic world of entrepreneurism.
***GRAB A BOOZE OR A BITE AND YOU WILL BE SET TO ENJOY THE EVENT. YOU NEED TO GET AT LEAST A DRINK OR FOOD:) To get the event going and show support. We know that you like our events. P.S. : We have non-alcoholic drinks as well.***
We have a tiny venue and we hit capacity often and early arrival is suggested.
We have the discretion to decide entry.
***HOW IT WORKS : We will try to assign tables by industry/sector/specialization. However we don't guarantee the availability of a partner in that area. PLEASE DON'T FORGET TO BRING YOUR BUSINESS CARDS!***
Rules to abide :
1\. Event is 21\+ \(bring ID\)\.
2\. Be respectful to your counterparts and give them a chance to connect with others as well\.
3\. We all are professionals in one or two fields and be willing to share your knowledge and experience to others and try to accommodate as much as possible\.
4\. If you don't belong the other person's required specialization\, LEAVE THEM ALONE\.
5\. Rude or aggressive members are removed from the group at an organizers discretion\.
6\. This is a face\-to\-face networking event\. DO NOT try to arrange an online meeting\, by using the comment box or direct message\.
7\. Most of our members complained about people writing in the comment box\. Since it sends notification to all attendees\. If you have any questions\, send a message to the organizers\. Don't write in the comment box\.
8\. We have ZERO TOLERANCE for solicitation\. We don't allow anyone to run their own agenda at the Event\. If you are interested to promote/sponsor/collaborate; contact us via \(info@merevents\.com\)\.
9\. When you get there\, we will greet you and take you to your respective group\.
***10\. Please be patient for the first 30 minutes\, up until your language speakers get there and we assign all the tables\.***
\- Come one\, come all; this is the most friendliest event you have ever attended\!
\- Feel free to invite your friends\. They don't necessarily have to be a member
***AFTER THE NETWORKING, WE WILL HIT THE DANCE FLOOR. BRING YOUR DANCING SHOES!:)***
***N.B. : We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via ([info@merevents.com](http://info@merevents.com/)).***
Deal or Disaster: The 5-Minute Investment Evaluation System
This training is designed for real estate agents who want to learn how to play the Agent Investor game. The goal of this training is to help you flip your income into ownership.
━━━━━━━━━━━━━━━━━
**Investors move fast. Most agents don’t.**
If you can’t evaluate a deal quickly and confidently, you lose credibility—and the opportunity disappears.
Deal or Disaster teaches a simple, repeatable framework to determine in minutes whether a deal prints money or burns it.
In this session, you’ll learn a 5-minute investment evaluation system that works across flips, rentals, BRRRRs, wholetails, and creative deals.
The goal isn’t perfection—it’s speed, clarity, and credibility.
We’ll break down:
* How to identify the investor’s true goal before running numbers
* A fast, reliable method to estimate ARV with confidence
* How to calculate the real all-in acquisition cost
* Simple heuristics to ballpark rehab and improvement costs
* The key metrics that reveal whether a deal works—or should be killed
You’ll also learn the most common red flags that signal bad deals, thin margins, and hidden risk, so you know when to pause or walk away.
When you can analyze deals in minutes, you earn authority, build trust, and become indispensable to investors.
Speed creates opportunity—and opportunity creates repeat business.
If you want to move from real estate generalist to trusted investment strategist, this session gives you the framework to do it.
━━━━━━━━━━━━━━━━━
**Did you miss it?**
[Watch all GRID Reston event playback on YouTube](https://www.youtube.com/playlist?list=PLOTh5kxLLJI1G3VH6Pqhlhu0uTA8yrdpi)
━━━━━━━━━━━━━━━━━
**Join the GRID Facebook Community**
[Join the online GRID community here](https://www.facebook.com/groups/gridinvestor) to post deals, ask questions, and connect with other investors across the globe.











