Software Engineering

Welcome to our new home at the historic Tivoli Theater! Please check our details for access to the space on [our website](https://www.hacdc.org/visit/). Join the discord for questions / help getting in (use channel #let-me-in) [https://discord.gg/dNjuNhNmeT](https://discord.gg/dNjuNhNmeT)

7:45 PM – Beginner Bachata 8:30 PM – Beginner Salsa This Class is for absolute beginner and up. [Book Your Class Here. ](https://crowndancestudio.com/group-classes/) Choose the date. then Click "book now." $18 Per Person for 1 Class $25 Per Person for 2 Classes Do I need Partner? NO Is it a Series? No. But we review similar materials on the consistent basic. Can I drop-in? Yes. Membership & Class pass available for your better growth and progress. [www.crowndancestudio.com](https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.crowndancestudio.com%2F%3Ffbclid%3DIwAR2zhtlRxGhExkt_lh7UddK-BeWO8Qs1-EOyoeOGv-J3T0iFQh1Mcj2yiCA_aem_AcwNtPvUfkDahcWu-o_1owBvR7kH5cPtGKRaZN0cwvsy7zAKFAW0zv11GyJZeHFK3sXTqcwkHzYjvnhIdj_bZzn9&h=AT03tOQ7TaMbm8BWrbY5GVWwm5AUCbspa2tH6WSZj2P19MdXsK-Ih8hbVRlM9y0i0DuAMcN1QoF5tRzsQ-8aq-F0hneUu0Qayohk--xGdi4ODLmv7dW1y3B0veXR6xDUMxTNH1ui5a1qQMb1Cw&__tn__=q&c[0]=AT23QwS2XzF8mb_UChFebvxb_ZwrfUwkBaJHK5_0MHCyY9o9eHFqWNQPS2IJpCgWWS7KJfldFCk2N1JPAXQQGplryaicqsu-5Hpj0tsphsZ3balIXhHgvlOSxKBXhiUaH8GLAXguklvbM9QOeUG2qAJKdQJ6) Address: 2820 Dorr Avenue Fairfax, VA 22031 See less

Volunteer with us refurbishing donated bicycles to help us get them back out in 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.

Call 202-797-9826 with any questions and to register! You are welcome to arrive 15 minutes early for refreshments! Are insecurities hindering your ability to live a happy life? Maybe you have suffered a traumatic experience, a deep loss or been through a painful breakup? After that, you try to move on- you just can't. Possibly you have a thought or emotion that hangs around for days and you just can't shake it. What is all this stress, anxiety, depression, and self doubt? It's just crazy! This baggage is not the real you. You can find out what is at the root of all this. Areas you can be helped with: Control of unwanted emotions Lack of confidence Grief Anxiety Anger management Creating ideal relationships Depression Memory and more... This is an on-line class that can start you on the way to a better life, more confidence and less negativity. All the happiness you have lies within you. Let's find it! We only use natural proven techniques, called Dianetics; no drugs or labeling. This group is sponsored by the Dianetics and Scientology Life Improvement Center.\

The stakes couldn’t be higher. Team USA has advanced to the Round of 16! Now they’re just one win away from the World Cup Quarterfinals—but standing in the way is a talented Belgium squad. There are no second chances. Win and keep the dream alive. Lose and the World Cup journey ends. Join Social Sips & Bites for what could be the biggest watch party of the tournament! Expect an electric atmosphere, passionate fans, great food, cold drinks, and 90+ minutes of edge-of-your-seat soccer. Don’t watch this one at home. Be part of the excitement as we cheer Team USA into the Quarterfinals! USA! USA! USA! 🇺🇸⚽🔥

Let's go deeper! More than just a fun aerobic exercise, immerse yourself in the cultural roots of Brazilian movements and stir in the contemporary expression of dance Flavia Nascimento is top trained Brazilian dancer helping others explore the Afro Diaspora of Brazil through movement and music. Join the class to lift your heart rate and elevate your spirit. $20

NOTE: Chris will join virtually, event is hybrid. Aspire isn't just for .NET — it's a polyglot orchestrator that can wire together Python, Node.js, Go, Java, and C# services under a single AppHost, with automatic service discovery, connection-string injection, and a unified observability dashboard. In this session, we'll explore that idea hands-on through seven sample applications that range from Flask and Django to Go and Java. We'll start with how Aspire solves the polyglot problem: the service-discovery chaos, configuration fragmentation, and 15-step READMEs that plague multi-language repos. You'll see how AddPythonApp, AddNpmApp, and AddDockerfile let you bring any runtime into Aspire's lifecycle, and how environment-variable conventions replace hardcoded URLs and scattered .env files. We'll also look at OpenTelemetry integration so that distributed traces, structured logs, and metrics from every language land in one dashboard with no separate tooling per stack. As we walk through the demos, we'll cover the practical patterns that matter most to real teams: dependency ordering, health checks across languages, connection-string injection for Redis, PostgreSQL, CosmosDB, and Kafka, and what it looks like to debug a request that crosses from a React frontend into a Go or Spring Boot backend. Finally, we'll step back and talk about the Aspire CLI workflow, what a production-ready polyglot repo looks like, and how Aspire's resource model maps to CI pipelines and deployment automation, including where Azure fits into the picture if that's part of your story. \-\-\- Meet and greet at 6:30, presentation begins at 7 PM ET.

\-\-\-\-\-\- [REGISTER FOR THE EVENT HERE (ON LUMA)!](https://luma.com/h31qygsf) \-\-\-\-\-\- Join us for an evening of collaborative problem-solving as we work on a variety of civic tech projects together. Project needs vary but often include brainstorming, researching, writing, coding, or analyzing data. Check out [our website](https://www.civictechdc.org/projects) for a list of projects which may make an appearance! Meet other civic tech enthusiasts. Learn new skills. Contribute to a project to improve a local civic issue. **All are welcome and collaboration is encouraged.** Laptops are recommended but not required. **Where do I register?** To better serve our growing community, we’re transitioning our event registrations to Luma! **We still love Meetup** Meetup has been an incredible platform for us to build and connect with our community. We’ll continue sharing upcoming events there so that new people can find us, but Luma will be our primary registration platform moving forward. **Why we're making the switch** Meetup’s registration system has some limitations, and we need more flexibility to manage sign-ups and engagement. \-\-\-\-\-\- [REGISTER FOR THE EVENT HERE (ON LUMA)!](https://luma.com/h31qygsf) \-\-\-\-\-\-

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!

**Location**: Tysons-Pimmit Regional Library (Virginia) Conference Room 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 That's what we'll be doing for this meeting. We'll briefly tell each other what we're going to do, then work on our projects, then at around 5:30 wrap up to show each other what we did and chat for a bit. You don't have to stay the whole time, so feel free to drop in and out as you have time. All game development skill levels welcome. Whether you're bringing a game you're trying to ship in a month, or you're just planning on following some tutorials or trying out a new tool to improve your skills, use this time to make progress. Working sessions also train you to think about the scope of your work: pick a chunk of work that you can complete in the time that we have. That way you can end the working session with a feeling of accomplishment! **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.

Join local video game developers, artists, musicians and writers to talk about the art and science of game development. Bring a device and demo your game, talk shop, find like minded folks to join forces with, have a snack or a beverage among new friends. We are an informal meetup where we share what we've been working on and socialize. Come for all or just a bit of the time!

The NoVA Forward Party's July 2026 Social Event will be at Namaste Jalsa in Alexandria on Wednesday, July 8th starting at 7:00 PM. Forward Party members and guests will have an opportunity to socialize with each other, learn more about the Party and other opportunities to participate, all while enjoying wonderful food and drink! Namaste Jalsa is located [about 6 minutes away from the King St.-Old Town Metro Station on the Blue and Yellow Lines](https://www.google.com/maps/dir/King+St-Old+Town,+1900+King+St,+Alexandria,+VA+22301/Namaste+Jalsaa,+Restaurant+%26+Bar,+1504+King+St,+Alexandria,+VA+22314/@38.8064874,-77.0599248,18z/am=t/data=!3m1!4b1!4m14!4m13!1m5!1m1!1s0x89b7b1aa40892405:0xaa46abc01e2c0755!2m2!1d-77.0600935!2d38.8071744!1m5!1m1!1s0x89b7b0fff9244c67:0x500fcca4be7704af!2m2!1d-77.056133!2d38.8061511!3e2!5m1!1e2?entry=ttu&g_ep=EgoyMDI2MDYxMy4wIKXMDSoASAFQAw%3D%3D). Colonial Parking has a paring garage ([King Street Station](https://www.google.com/maps/dir/King+Street+Station,+1800+Diagonal+Rd,+Alexandria,+VA+22314/Namaste+Jalsaa,+Restaurant+%26+Bar,+1504+King+St,+Alexandria,+VA+22314/@38.8062138,-77.0599248,18z/am=t/data=!4m14!4m13!1m5!1m1!1s0x89b7b1006c215af5:0x81a202e7d6103a4d!2m2!1d-77.0601644!2d38.8057724!1m5!1m1!1s0x89b7b0fff9244c67:0x500fcca4be7704af!2m2!1d-77.056133!2d38.8061511!3e2!5m1!1e2?entry=ttu&g_ep=EgoyMDI2MDYxMy4wIKXMDSoASAFQAw%3D%3D) location) about 6 minutes away from Namaste Jalsa, next to the Metro Station. Street parking is free after 5:00 PM on Weekdays. Attendees will be expected to pay for their individual or group items. We look forward to seeing you!

From the organizers of the Silver Spring Cloud Meetup, this is a local tech meetup for AI builders, software engineers, cloud engineers, developers, founders, and AI practitioners in the Silver Spring / DMV area. ​**What to expect** Short talks plus open networking. Topics on deck for our first sessions: * ​Local AI models: running Qwen, Llama, and friends on your own hardware (Ollama, MLX, llama.cpp) * ​Agentic AI: what's actually working in production, and what isn't ​**Want to speak?** We're looking for 15-20 minute talks and lightning demos. Pitch us at [hello@cloudyeti.io](mailto:hello@cloudyeti.io). First-time speakers welcome. ​**Location: TBD** We're finalizing a venue around Silver Spring. RSVP and you'll get the address as soon as it's locked in. ​**Sponsors wanted** We're looking for sponsors to cover food, venue, and event insurance. If your company wants to get in front of DMV AI engineers and builders, email [hello@cloudyeti.io](mailto:hello@cloudyeti.io). ​**Cost** Free to attend. If we don't land a sponsor, we'll suggest an optional $10 donation to cover venue, insurance, pizza and drinks. Nobody gets turned away. ​ ​#techmeetup ​#AImeetup

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. **CALL FOR SPEAKERS** Learn more: https://www.awscolumbus.com/get-involved/ **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: https://www.veeam.com/ **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **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

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!

Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on. That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable. In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork. This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it. We’ll cover: * Why “it looks good” is not enough * How to improve prompts by changing the input, context, and constraints * How to compare LLM outputs more systematically * Basic evaluation techniques for accuracy, consistency, and usefulness * How embeddings, cosine similarity, and scoring can help evaluate results * Where automated evaluation works — and where humans still need to stay in the loop By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve. 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.

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)

**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** *July Meeting - Lightning Talks!* Lightning talks are very short presentations on a topic of your choice (must be related to .NET). Talks should be 15-20 minutes in length and include minimal slides and quick demo (no live coding please). There will be 6 slots available! First come, first serve! **YouTube Link** TBD

**Hello Columbus!** **The community is buzzing and growing well. We are thrilled to bring our fourth BrowserStack QA Meetup on Thursday, July 9th!** We are creating a space for deeper insights, meaningful connections, and a vibe you won't want to miss. **What to expect:** * **Connect:** Network with Columbus' top engineering and QA minds. * **Learn:** Real-world tactics and trends you can use immediately. * **Enjoy:** Food, drinks, and great community spirit. **Agenda** * **Two Roads Diverged in a Wood: Docker Compose vs. Kubernetes** by **[Doug Reeder](https://www.linkedin.com/in/pdouglasreeder/)** **RSVP Essential:** Space is limited, and we want to ensure a great experience for everyone. **RSVP now to secure your spot!** 📍 **Venue:** Leading EDJE, 6515 Longshore Loop, Suite 300, Dublin, OH 43017 📍 **Free Parking:** 6725 Longshore Street, Dublin, OH 43017 📅 **Date & Time:** July 9, 6:00 PM **Stay Connected!** Want to continue the conversation beyond the meetup? Join our **BrowserStack Discord Server** to get updates, connect with fellow QA professionals, and be part of an ongoing discussion. **Don’t miss out—click below to join!** 🔗 [\[](https://discord.gg/6SdCyWTNyW)**[Join the BrowserStack Discord Server](https://discord.gg/6SdCyWTNyW)**[\]](https://discord.gg/6SdCyWTNyW) **A Few Notes:** ✅ This is an **in-person event** ✅ **RSVP does not guarantee a seat** – A confirmation email will be sent one day before the event. **TALK ABSTRACT:** Docker Compose and Kubernetes are two of the most popular tools for running containerized applications. Their feature lists are similar. Architects and senior developers need to know how their different paradigms lead to unexpectedly different experiences in production.