Periodic evening meetups plus an annual PyData Seattle conference · hybrid · Rotating (MotherDuck, Seattle; Bellevue College for the conference), Seattle
data ml python
The Seattle chapter of the NumFOCUS-run PyData series, covering the open-source scientific-Python and data-science stack (pandas, NumPy, scikit-learn, DuckDB, and the like). Runs periodic evening meetups plus a multi-day annual PyData Seattle conference (2025 edition at Bellevue College).
4,213 members · typically 30-40 · free
Organizers: NumFOCUS
Sponsors: MotherDuck
Monthly, at Bellevue City Hall · in-person · Bellevue City Hall, Bellevue
data ai security cloud
A large, very active Bellevue group whose recent programming centers on enterprise AI, AI agents in production, governance, and security. Monthly sessions at Bellevue City Hall draw big crowds and senior speakers from major local employers, alongside occasional tech tours and hackathons.
5,458 members · typically 150-275 · free
Organizers: Padma A
Roughly monthly · in-person · Rotating (Thinkspace, Pioneer Square Labs), Seattle
ai
Anthropic-backed community meetups (part of the global 'Claude Community' ambassador program) where Claude Code practitioners give lightning talks and demos. Seattle is one of the program's most active nodes, run by several local ambassadors rather than a single group page; events are organized on Luma, not Meetup.
typically 150+ · free
Organizers: Lucas Dickey, Jenny Hahn
Sponsors: Anthropic
recurring beginner-friendly Code Katas, roughly monthly on Tuesdays, 5:30 PM PT · hybrid · AWS Skills Center, Seattle
javascript web
The hands-on coding-practice sibling of SeattleJS. Members work through 'code katas' (short algorithm exercises in any language) together, in person at the AWS Skills Center and simultaneously online via Discord/WebEx; mentors are on hand and newcomers are explicitly welcome.
2,986 members · typically 5-15 · free
Organizers: Sam Eubank, Justin Oliver Lee
Sponsors: SeekOut
recurring beginner-friendly Near-weekly virtual streams plus monthly in-person Bellevue hacknights · hybrid · Varies, Bellevue
ai ml python data
A hands-on, learn-by-building AI community running near-weekly virtual engineering streams plus recurring in-person hacknights and a book club in Bellevue. Locally organized by Sage Elliott; educational rather than a sales channel, though some open-source tooling (Flyte/Union.ai) is featured.
1,296 members · typically 5-15 · free
Organizers: Sage Elliott
recurring beginner-friendly Roughly monthly; tech talks, Cloud/AI labs, study jams · hybrid · Google Seattle, Seattle
cloud ai android mobile web
The Seattle chapter of Google's developer-community program. Runs Google-hosted tech talks, hands-on Cloud and AI labs, and study jams (historically Android/Flutter/web, lately heavy on AI and Google Cloud), and organizes the annual DevFest Seattle.
6,240 members · free
Organizers: Margaret Maynard-Reid, Yenchi Lin
Sponsors: Google
Several events monthly across themed tracks · in-person · Rotating (sponsor offices), Seattle
ai ml
The Seattle chapter of the global AI Tinkerers network -- a screened, demo-first community for hands-on AI builders. Frequent themed sessions (Dev Tools, GTM Engineering, Women in AI) feature live code demos, technical Q&A, and an explicit no-sales-pitch rule; among the most active AI-builder communities in the metro (35 events in the last year).
4,600 members · typically 100-300 · free
Organizers: AI Tinkerers Seattle organizers
Sponsors: Qumulo, PostHog
recurring beginner-friendly Monthly, 2nd Tuesday, 5:30 PM PT · in-person · The Collective, Seattle
startups networking product
The Northwest's largest recurring tech-community meetup, held monthly in South Lake Union. The format is short startup demos and presentations plus structured networking; a low ticket price applies.
19,590 members · typically 50-100+ · paid
Organizers: New Tech Northwest
recurring beginner-friendly Monthly, 1st Wednesday, 6:00 PM PT, rotating Eastside venues · in-person · Rotating (Eastside), Kirkland
security infosec
A casual monthly information-security meetup on the Eastside -- small communal-table gatherings at rotating restaurants and the Black Lodge hackerspace, with occasional guest speakers. Networking-first rather than talk-heavy.
267 members · typically 4-8 · free
Organizers: Ted Z.
recurring beginner-friendly Monthly, 2nd Wednesday, 1:00 PM PT, online · virtual
go
The Seattle Go user group, now meeting online monthly with a talk over Zoom. Locally organized and long-established, though attendance is modest since the shift to virtual-only.
2,202 members · typically 5-15 · free
Organizers: Morgan
Roughly monthly, alternating in-person/virtual · hybrid · Docker Office / Seattle Maritime Building, Seattle
devops cloud kubernetes
The CNCF-affiliated Seattle cloud-native user group, meeting mostly in person at the Docker office for Kubernetes, containers, and platform-engineering talks. Small but with a steady 2026 cadence and confirmed upcoming events.
472 members · typically 10-30 · free
Organizers: Chris Crow
recurring beginner-friendly One to two per month (in-person Seattle/Bellevue talks plus virtual summits) · hybrid · Thinkspace, Seattle
ai ml data
A large AICamp-run chapter hosting monthly in-person GenAI/LLM/agent tech talks (at Thinkspace and GitHub Bellevue) alongside AICamp's global virtual summits. Talks are technical rather than sales pitches, though the group actively solicits sponsors.
6,342 members · typically 100-150 · free
Organizers: Bill Liu
recurring beginner-friendly Roughly monthly, often joint meetups · in-person · Rotating (Slalom Hawk Tower), Seattle
cloud aws devops
The official Seattle AWS user group, running regular in-person cloud talks, frequently as joint meetups with the local Python and Kubernetes communities. Long-established and locally organized.
4,068 members · typically 50-100 · free
Organizers: Rob Koch
recurring beginner-friendly Irregular (recently ~quarterly), on Microsoft's Redmond campus · in-person · Microsoft Redmond, Redmond
dotnet csharp
An established Seattle-area .NET group holding C#/.NET/AI talks on Microsoft's Redmond campus. Its most recent confirmed meeting was January 2026 with nothing currently scheduled, so ongoing activity is uncertain.
2,383 members · typically 20-70 · free
Organizers: Chris Kinsman
may be inactive — last met Jan 22, 2026
Roughly monthly (in-person Seattle/Bellevue plus online) · hybrid · Rotating (Seattle/Bellevue), Seattle
devops cloud kubernetes ai
The rebranded Seattle Kubernetes user group, now covering multi-cloud, cloud-native, and AI/ML workloads. Locally organized with in-person Seattle/Bellevue meetups, part of a larger multi-city KSUG.AI network; recent turnout has been modest.
2,659 members · typically 5-30 · free
Organizers: Yongkang He
Monthly, 3rd Thursday, 6:30 PM PT · hybrid · Bellevue City Hall, Bellevue
cpp
Long-running C++ user group holding monthly technical talks at Bellevue City Hall with a Teams livestream. Topics range across modern C++, systems programming, and adjacent tooling.
free
Organizers: Lloyd Moore
Sponsors: CyberData Robotics
recurring beginner-friendly Intermittent (claimed monthly socials plus periodic in-person events) · hybrid · Seattle
security web
The Seattle chapter of OWASP, the application-security nonprofit. Leadership is active and the chapter has a large member base, but no public event could be confirmed within the last six months -- its last verifiable meetup was August 2025.
3,133 members · free
Organizers: Arjun Gopalakrishna, Clara Andress
may be inactive — last met Aug 21, 2025
recurring beginner-friendly Multiple events monthly -- talk nights plus 'programming night' co-working sessions · in-person · City University of Seattle (rotating venues), Seattle
python data
The Puget Sound region's largest Python user group. Runs monthly talk nights (two talks plus a lightning talk) alongside regular low-key 'programming night' co-working sessions at rotating Seattle venues; all skill levels, including complete beginners, are welcome.
10,607 members · typically 15-50 · free
Organizers: Maria McKinley
Sponsors: ActiveState, Slalom
recurring beginner-friendly Monthly, Thursday evenings · in-person · Fred Hutch Cancer Center, Seattle
data sql databases
A PostgreSQL-focused database user group founded in 2009, meeting monthly in person at Fred Hutch venues. Recent talks span Postgres scaling and management, serverless Postgres, benchmarking, and Postgres-plus-Python/GenAI topics.
1,174 members · typically 20-65 · free
Organizers: Lloyd Albin
Roughly semiannual (spring/summer editions) · in-person · Rotating downtown Seattle (Docusign Tower, Madrona), Seattle
data analytics
The Seattle chapter of dbt Labs' community meetup network, aimed at analytics engineers and data teams. Covers dbt, modern data stacks, modeling, testing, and data-ops; lower (roughly semiannual) cadence but healthy turnout when it meets.
461 members · typically 40-65 · free
Organizers: dbt Labs
recurring beginner-friendly Monthly, 3rd Tuesday · in-person · City Center Bellevue, Bellevue
java jvm
A JVM/Java user group running since the mid-1990s, holding monthly evening talks on the Eastside (recently hosted at City Center Bellevue). One of the metro's longest-lived language groups.
2,542 members · free
Sponsors: Broadcom (VMware)
Irregular, roughly quarterly · in-person · Rotating (member companies), Seattle
kotlin android
A small Kotlin developer group holding occasional single-talk evenings hosted at local companies. It cleared the recency bar (February 2026) but cadence is thin, turnout is tiny, and nothing is currently scheduled.
265 members · typically 1-5 · free
Organizers: Konstantin Ignatyev
may be inactive — last met Feb 24, 2026
recurring beginner-friendly Roughly monthly talk nights (Seattle and Bellevue) · hybrid · Rotating (Bellevue/Seattle), Bellevue
python data ml
The Seattle chapter of the international PyLadies network, supporting women and gender minorities in the Python community. Runs monthly talks and workshops in Seattle and Bellevue, often co-hosted with the local Spark+AI and WiMLDS groups.
2,334 members · typically 20-30 · free
Organizers: Wendy Grus, Eloisa Elias
recurring beginner-friendly Weekly hack night, Tuesdays (venue currently unpublished) · in-person · Seattle
ruby rails
The world's oldest Ruby brigade, historically an informal weekly Tuesday hack night open to all skill levels. The site still showed 2026 project activity, but no specific recent meeting date or current venue could be confirmed.
free
may be inactive
recurring beginner-friendly Monthly, 3rd Thursday, 6:00 PM PT · hybrid · Bellevue City Hall, Bellevue
rust
Monthly Rust user group meeting at Bellevue City Hall with a featured talk plus lightning talks and a Teams livestream. All skill levels welcome; recent sessions have drawn Rust-tooling names such as Zed.
2,023 members · typically 25-36 · free
Organizers: Brad Gibson, Rory Sullivan
recurring beginner-friendly Irregular (roughly every 1-2 months) · in-person · Rotating (Bellevue/Seattle), Bellevue
data ml
A volunteer-run group for Apache Spark and the broader data-engineering / Spark+AI ecosystem (Delta Lake, MLflow, PyTorch). Part of the same organizer cluster as Seattle PyLadies and WiMLDS, with which it co-hosts events; cadence is somewhat sporadic.
3,983 members · typically 40-50 · free
Organizers: Denny Lee, Eloisa Elias
recurring beginner-friendly Twice monthly -- talk night (1st Thursday) and social (3rd Thursday) · in-person · North Seattle College, Seattle
swift mobile
Long-running Apple-platform (iOS/macOS) developer group. Alternates between classroom talk nights at North Seattle College and casual brewery socials in Ballard; recent talks covered Swift result builders, CI with GitHub Actions, and using LLMs in developer workflows. Left Meetup.com in 2025 -- xcoders.org is the canonical surface.
typically 20-40 · free
recurring beginner-friendly Monthly talk night, 2nd Wednesday, 5:30 PM PT · hybrid · Just the Tap, Seattle
javascript web
Seattle's longest-running JavaScript and web-development meetup. The core format is a monthly evening at a bar with two or three talks, sponsor pizza, and networking; the same organizers also run weekly 'Code Katas' coding-practice nights and occasional online hackathons.
7,281 members · typically 40-80 · free
Organizers: Cody Mitchell, Andre Wiggins, Carter Rabasa
Sponsors: SeekOut
recurring beginner-friendly Biweekly, in-person at Stoup Brewing (Capitol Hill) · in-person · Stoup Brewing Capitol Hill, Seattle
ai
A biweekly, discussion-oriented AI community meeting over beers at Stoup Brewing on Capitol Hill. More conversational than build-focused -- engineers, designers, and researchers trading notes -- and a low-pressure entry point to the local AI scene.
free
Organizers: Shreyans Khunteta, Aleks Allen
recurring beginner-friendly Roughly monthly fireside chats · in-person · Rotating Seattle venues, Seattle
startups networking
The Seattle chapter of the global Startup Grind community (part of Google for Startups), running fireside chats with local founders and investors plus networking. Founder-oriented but open to anyone weighing the startup scene.
5,237 members · typically 30-60 · paid
Organizers: Startup Grind Seattle
Weekly during UW academic quarters; pauses over summer · in-person · UW Interdisciplinary Engineering Building (IEB) G109, Seattle
data ml
A free, public weekly lecture series at the University of Washington, hosted by the eScience Institute, showcasing applied and methodological data science across disciplines. Runs on the academic calendar (currently in its summer gap; resumes fall 2026).
free
Organizers: UW eScience Institute
recurring beginner-friendly Occasional tech-talk nights plus an annual WiDS Puget Sound conference (spring) · hybrid · Rotating (Mercer Island, Fred Hutch, GitHub Bellevue), Seattle
data ml ai
A Puget Sound group supporting diversity in data science through tech-talk nights, interview-prep sessions, and networking, and the local affiliate of the Stanford-originated WiDS (Women in Data Science) conference series, which it hosts each spring.
355 members · typically 10-100+ · free
recurring beginner-friendly Roughly monthly · hybrid · Rotating (Bellevue/Seattle), Bellevue
ml data ai
The Seattle chapter of the global WiMLDS network, supporting women and non-binary people in machine learning and data science through talks, workshops, and networking. Shares organizers and co-hosts events with Seattle PyLadies and Seattle Spark+AI.
1,860 members · typically 50-130 · free
Organizers: Eloisa Elias