Software Engineering

**REGISTER AT THE LUMA EVENT PAGE!!!** https://luma.com/27ja5gwl Join us for an exciting talk by Mary Gibbs, Senior Applied Scientist at Relativity. ​ ​**​Agenda:** ​​6:00 - 6:30 PM - Welcome and mingle 6:30- 6:45 PM - Introductions 6:45 - 7:30 PM - Talk 7:30 - 8:00 PM - Wrap up **​​Description:** ​If you have ever shipped a model, watched your metrics improve, and later learned from your users that something was wrong, the metrics were always wrong. You just didn’t know it yet. An evaluation consists of three components, a benchmark, a scorer, and a claim about what a score represents. Each component has its own weaknesses. Benchmarks can suffer from narrow coverage, contamination, or saturation. Scorers are often chosen for ease of automation or computation rather than for their alignment with user outcomes. And the claim connecting a score to reality is rarely made explicit. These gaps compound across the model development lifecycle. When metrics improve, teams treat that as a signal and optimize directly against it, which is how a measurement problem becomes a model problem. This talk maps where evaluations can go wrong, considers counterarguments, and ends with practical advice for building better ones. **​Speaker Bio:** ​Mary is a Senior Applied Scientist at Relativity, tackling data science challenges in the e-discovery and legal tech space. She is also an organizer for Women and Gender eXpansive Coders DC (formerly Women Who Code DC), fostering a community dedicated to empowering women and nonbinary individuals to excel in their careers. Mary's experience spans various domains. She has developed data science solutions related to job search and career progression at Teal, cybersecurity challenges at LiveAction Software, and commercial and government consulting at Mosaic Data Science. Before venturing into the field of data science, Mary conducted and published research pertaining to the cellular and molecular mechanisms underlying neurodevelopment at the National Institutes of Health. In other words, she has dissected and imaged a lot of fruit fly brains. She holds a M.S. in Data Science from The George Washington University and a B.A. in Biological Sciences from Cornell University

Reboot Hour is a feel-good, drop-in happy hour for meeting great people, playing a few games, and resetting your week. **Come stressed, leave refreshed. Donate old tech too!** This is the **anti-event**: no agenda, no speakers, no pressure. Just good people + games + conversation. Quick community note: eWaste Warriors has been getting noticed — **Rob Link was named a RealLIST Connectors DC 2026 Top 20 Connector**. You’ll feel that energy in the room: a lot of those “connector” folks show up here to meet people and pull others in. **Optional bonus (1 minute): bring 1 working device** (phone/tablet/laptop/etc.). Donating feels good because it helps real people and keeps good tech in circulation. Accepted: phones, tablets, laptops, smartwatches, AR/VR headsets, game consoles, headphones. Not accepted: screens, CRTs, appliances, loose batteries. **When/Where:** Tue, May 26 • **5:00–7:30 PM** (drop in anytime) Carpool Ballston — 900 N Glebe Rd, Arlington, VA (Ballston Metro)

**RSVP DOES NOT GUARANTEE YOUR SPOT. You must register via our website:** [https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm](https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm) **Defensive Skills & Setting Camp** This camp is designed for **adult volleyball players (ages 20 & above)** looking to improve their defensive & setting skills. Ideal for **all skill levels**, this camp offers an opportunity to receive skill instruction from George Washington's coaching staff. Defense & Setting Skills Camp is designed to develop well-rounded back-row defenders and setters by blending high-level defensive training with position-specific setting work. This session allows defenders to sharpen their floor skills while providing setters with focused, individualized technical training. **What to Expect:** Players will work on defensive techniques including platform control, reading hitters, movement patterns, & ball tracking in fast-paced, game-like drills. Back-row defenders will also learn how to set out-of-system to expand their skill set & decision-making. Setters will receive high-level 1v1 technical training while also spending time working on their own defense & blocking, helping them become more complete, well-rounded players on the court. We will spend the first hour & a half on skill instruction & the last 30 minutes playing competitive 6v6. 6v6 play will be recorded & distributed to participants so you can track your progress! **Camp Schedule:** 🗓️ *Tuesday, May 26th* * 6:45 PM – Doors Open, Check-in begins at the Charles E. Smith Center * 7:00 PM – Camp Begins * 9:00 PM – Camp Ends **Important Info:** * **You must register via our website:** [https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm](https://www.katiereifertvbcamps.com/krvc-adult-volleyball-camps.cfm) * This camp is for **adults only** – you must be **above the age of 20 or have exhausted your NCAA eligibility.** * You will enter the Charles E. Smith Center at the **Ticket Office Entrance**, located on 22nd St. * **Please do not arrive early; basketball will be finishing up their practice at this time & we cannot accommodate your arrival earlier.** * Payment is due at the time of signup. * If you have questions, please contact us at katiereifertvolleyballcamps@gmail.com * *By registering, you agree that we may use your photo for marketing.* We can’t wait to see you there!

Come volunteer with us refurbishing donated bicycles so that they can be used again by the community! This event is open to both new and existing volunteers. No mechanical experience is necessary. Note: The warehouse location is in the alley behind 1502 Mt Vernon Ave. Enter through the gray door next to a roll-down garage door. If you drive to the location, be sure to park in the street, not in the alleys or parking lots surrounding the warehouse. And wear clothes you don't mind getting dirty with bicycle grease! Please be aware that volunteers under 18 need a parent or guardian to accompany them to their first volunteer experience and sign a liability waiver, while volunteers under 16 need a parent or guardian to accompany them at all times while volunteering with Vélocity.

If you run an AI startup or you have a project or business idea, join us for first AI entrepreneur gathering of this group. Here is my Steve Kantor LinkedIn: https://www.linkedin.com/in/steve-kantor-594784. You? Feel free to connect. I was in original group started by Marc Pickett a decade ago and I am now a co-organizer. Text me 202-297-2393 if you register or cannot come to this event but want to connect with other startup founders. Help Each Other Anything is Possible

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Artemis II and Beyond,”** on how the recent space mission fits into long-term plans for the Moon, with Michael J. Neufeld, retired senior curator for the Space History Department of the Smithsonian’s National Air and Space Museum. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond](https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond) .] NASA’s recent, spectacular Artemis II mission is a sign that the United States is serious about sending humans to the Moon again. Gain an understanding of how Artemis II fits in both past and planned lunar missions with historian Michael Neufeld, who was lead curator of the Smithsonian’s Destination Moon exhibit. He has taught at Johns Hopkins, Colgate, and other universities, and is the author or editor of nine books dealing with the history of technology. He’ll start by looking at the aftermath of the Apollo program of a half century ago and why it ended only four years after its first lunar mission. He’ll consider why no lasting lunar programs emerged from major announcements by two presidents, George H.W. Bush and George W. Bush, that astronauts would be going back to the Moon and on to Mars. His vividly illustrated lecture will then explore how Artemis is a product of a human spaceflight program that has changed dramatically over the past 50 years. We’ll look at how collaboration with Europe, Canada and Japan became integral to the shuttle and International Space Station programs, and how the rise of new commercial space companies such as SpaceX has enabled NASA to buy both space services and space craft. Both international and commercial partners are involved in the latest Moon efforts, with SpaceX and Blue Origin expected to supply the landers to take astronauts down to a planned base on the Moon’s South Pole. How soon will any of this happen? Probably not as quickly as NASA says, but the specter of a Chinese landing on the Moon by 2030 is one obvious reason to keep things moving along. We’ll look at the sustainability of the Artemis space program for at least the next decade or so. You’ll emerge from the talk with no doubt that exciting days are ahead for space fans. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: The Artemis II mission launch (NASA photo).

There is supposed to be a let up in the seemingly incessant rain. Let’s take advantage with a walk at Brookside Gardens. We will meet to the right of the visitors center. If anyone is interested we can go to lunch afterwards.

Want to mess with some electronics? Or perhaps contribute to HacDC's main group project? HacDC's latest event brings hardware projects to the community. We will focus primarily on the main project (Space Blimp!) but please feel free to bring some of your own projects to show off and work on!

The Cover6 Community's in-person meetup is back — round three, and we're keeping it exactly where it should be. We're downstairs this time — right by the bar. No conference room, no roped-off section upstairs. Just the right amount of space for real conversation, and drinks already there if you want one. What to expect: • Pure open networking — no agenda, no presentations, no slides • Three hours to connect, catch up, and build real relationships • Genuine conversations with practitioners, newcomers, students, and professionals from across the industry • Good energy, familiar faces — and plenty of new ones When you walk in, skip the elevator. Head straight to the bar and you'll see me close by. Who should come: Anyone in or entering the cybersecurity space in the DMV. It doesn't matter if you've been in the industry for 20 years or you're still studying for your first cert. You belong here. Bring a friend — the more the merrier. Tag someone who needs to be in this room. 📍 AC Hotel by Marriott Arlington National Landing 1999 Richmond Highway, Arlington, VA 22202 (Metro accessible — Blue/Yellow Line, Crystal City Station) We're downstairs — look for us by the bar. 📅 Thursday, May 28, 2026 🕕 6:00 PM – 9:00 PM RSVP so we know how many people to expect. See you Thursday. — Tyrone & the Cover6 Community team

**NOTICE: The park is open until 8:45 PM for Sunset Closing** [https://www.novaparks.com/parks/meadowlark-botanical-gardens/events/sunset-in-the-gardens-845pm-closing](https://www.novaparks.com/parks/meadowlark-botanical-gardens/events/sunset-in-the-gardens-845pm-closing) **Sunset is 8:25 PM** Fees: $5 for ages 6-17 & ages 55+, $9 for ages 18-54, and free for ages 5 & under We will meet at the visitor center. Bring Water, Tripod, comfortable shoes, fully charged batteries, and empty cards There is no specific route in this park. Folks are free to wander around the trails in the park at their own pace. Check out Rob Trek's video from May 16, 2021: https://youtu.be/QwNR_TuxM4Y For dinner, after the field trip around 8:30 PM, we will head to Anita's New Mexico Style Restaurant, 521 Maple Ave E, Vienna, VA 22180 https://maps.app.goo.gl/3T7gw87tjvVuwDT96 Share only your very best, most interesting shots after the field trip, and keep it down to between 5 and 10 photos. Beauty, conservation, education, and discovery flourish throughout the year at this 95-acre complex of large ornamental display gardens and unique native plant collections. Walking trails, lakes, more than twenty varieties of cherry trees, irises, peonies, an extensive shade garden, native wildflowers, gazebos, birds, butterflies, seasonal blooms, and foliage create a sanctuary of beauty and nature. [https://www.nvrpa.org/park/meadowlark_botanical_gardens/](https://www.nvrpa.org/park/meadowlark_botanical_gardens/) By sending in an RSVP and joining this meetup event hosted by the Virginia Beltway Photography Meetup, I am also agreeing to the terms of the following release and waiver of liability, which shall be binding on my heirs, executors, administrators, successors, and assigns. In consideration of my (and my child’s) participation in the Virginia Beltway Photography Meetup, I do hereby release, discharge, and hold harmless the Organizer, its members, officers, directors, employees, and the leader(s) of this event from any and all liability by reason of any damage, loss, expenses, or injury arising from my (and my child’s) participation in this event, including that caused solely or in part by the fault of any and all of the above-named parties.

Join PSW Science® on May 29 at 8 PM as we welcome Michael Garrett (U. of Manchester) & Adam Thompson (NVIDIA). During the question and answer period, in-person attendees and live stream viewers may ask the speaker questions, and in-person attendees may also engage with the speaker during the post-lecture reception. Refreshments are served. For more information on this meeting, please visit: https://pswscience.org/meeting/2536 The meeting will be held in the John Wesley Powell Auditorium, adjacent to the Cosmos Club. The Powell Auditorium is located at 2170 Florida Avenue, NW Washington, DC 20008. Use of the Cosmos Club is restricted to the Powell Auditorium, the entryway to the auditorium, and the restrooms immediately outside the auditorium. Please note there is no onsite parking available. PSW Science, founded in 1871, is one of the oldest scientific societies in Washington D.C. Now, over 150 years later, we celebrate the Society's rich history and contributions to scientific discovery and cross-disciplinary collaboration. For information on how to become a member of PSW Science and membership benefits, please visit https://pswscience.org/join/

If you're ready to grow your business through meaningful relationships and high-quality referrals, this event series is for you! We're a community of local small business professionals committed to building prosperity through authentic connection and collaboration. Join us for **genuine, no-pressure networking**—no fees, no pitches, no nonsense. Just good people, good conversations, and a few refreshments to keep things relaxed. Stay for a few minutes or the whole time—whatever works for you. **This event is completely free to attend**, but we kindly ask that you RSVP so we can plan accordingly. We can’t wait to connect with you!

NOTE: This working session is at Lamond-Riggs Library not MLK. It is near the Fort Totten Metro Station. A game development **Working Session** involves 3 key parts: 1. Tell people what you're going to do 2. Actually do stuff 3. Show people what you did **What to bring**: Laptop, Charger, maybe a power strip if you have one handy, any other game development tools you need. Try to download any software you need before the working session. There is Wifi at this location, but it may be slow if you have to download any large files.

DeafPlusAdvocate is hosting our monthly ASL Social event in the DMV. Join us for a late spring ASL Social at Garden Social. Also, enjoy Hawaiian cuisine and great outdoor and indoor space. .If you are Deaf/hearing, interested in socializing, or looking for practice with American Sign Language (ASL), join us! All ASL levels are welcome! This is the perfect place for you! We will host ASL Social on Saturday, May 30th, at the L&L Hawaiian Barbecue from 5:00 PM - 8:00 PM. The address is: 4363 John Marr Dr, Annandale, VA 22003. If you have any questions, please don't hesitate to contact the DeafPlusAdvocate team.

**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 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

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)

Join us for **[Nathan Leiberman](https://www.linkedin.com/in/nathan-richard-lieberman/)**'s talk ... Had enough of writing the same flex classes for the hundredth time? Tired of diving into your coworker’s cobbled container class? Tailwind CSS is here to save your sanity. Tailwind gives you a well-organized, utility-first approach to styling. This CSS framework eliminates naming debates, halts stylesheet scavenger hunts, and satisfies your marketing team’s whims with clear, composable class names and a powerful configuration system. You’ll spend less time fighting CSS and more time building beautiful interfaces. In this talk, I’ll walk through an interactive demo of Tailwind CSS and cover the following topics: * Set up Tailwind CSS in your project * Understand Tailwind’s utility classes and how they work * Integrate breakpoints and dark mode like a pro * Customizing Tailwind to fit your style Ditch your spaghetti stylesheets and come see how Tailwind CSS can make your project lighter, cleaner, and a lot more fun to build. Your future self will thank you. ***Bring your laptop and expect to write some (non-AI generated) code!*** Food and drinks will be available. **LOCATION:** 6515 Longshore Loop, Suite 300, Dublin, OH 43017 **FREE PARKING:** 6725 Longshore Street, Dublin, OH 43017

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. So please RSVP for a head count!

Most people use AI like a search box: they type one sentence, hope for the best, and get frustrated when the answer is generic, wrong, or useless. But getting better results from tools like ChatGPT, Claude, Gemini, and other AI systems is not about memorizing magic prompts. It is about learning how to give the AI better context. In this beginner-friendly session, we’ll break down how to make AI dramatically more useful by improving the way you communicate with it. You’ll learn how to give clearer instructions, provide examples, set constraints, ask for better output formats, and use follow-up questions to turn a mediocre answer into a genuinely useful one. We’ll cover practical techniques you can use immediately for work, learning, writing, coding, planning, research, and everyday problem solving. We’ll also touch on why these same ideas show up in more advanced AI systems, including RAG, agents, evaluations, and AI workflows. No technical background required. Bring your curiosity, your questions, and maybe one real task you wish AI was better at helping you with. **What you’ll learn:** * Why “better prompting” is really about better context * How to structure requests so AI gives more useful answers * How to use examples, constraints, and output formats * How to iterate when the first answer is not good enough * How these skills connect to more advanced AI workflows This meetup is for anyone who wants to move beyond basic ChatGPT usage and start getting more practical value out of AI. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.