Slack community for Elixir programming language.

We learn programming together and help each other when we get stuck.

Slack community for Elm language.

The biggest data science slack community with over 3,700 members - chat about anything and everything to do with data & machine learning. Share knowledge, get help, collaborate and more!

A Slack community for people who love all things Clojure. Discussions around #clojure #clojurescript #datomic #datascript #webdevelopment and more

Slack community for Slack app developers. Members include people from Slack.

We are a community of Ruby on Rails developers from all over the world, including avid OSS contributors, full-stack engineers, founders of startup, backend engineers at enterprise and students learning Ruby on Rails. Join us and talk on Slack!

Android United is a friendly Slack community of professional Android developers. At the moment we unite more than 300 developers from all over the world. We share our experience, knowledge and relevant news about Android and mobile. We help each other.

A community slack group for talking SQL Server and the wider Microsoft Data Platform

AndroidChat is an open community with a Slack team open to everyone. A place where every developer, idealist, entrepreneur or geek is welcome to share their ideas, questions and successes.

We are a self motivating group of individuals that support each other through the process of javascript learning with an ongoing series of projects/challenges. We believe that the best way to learn and become an expert in something is by doing and we also believe that you truly concrete your knowledge when you can teach others. Our group is based on this simple concept - Learn by doing then teach others.

A community for anyone and everyone interested in open source, container tech, Docker, Mesos, Kubernetes and more! If you're interested in these things you'll fit right in :) Managed by {code} by Dell EMC

Ruby and Ruby on Rails Slack group. Invites are manually reviewed and accepted to avoid abuse so it may take a while until you get accepted.

A slack channel for all VueJS lovers.

The Server Side Swift community focusing on Swift development on the server - primarily in Perfect.

A community for emerging technologies

Slack community for distributed system

Chaos Engineering Community Slack, where we can discuss anything related to breaking stuff.

Data Discourse is Experfy's community of Data Science, IoT, and Big Data experts. Experfy based in the Harvard Innovation Launch Lab, is a data science, analytics and engineering talent marketplace.

UX.guide is a quickly growing community for people to share and learn about all things user experience and product design.

Join the Swift Developer Community in India 🇮🇳. We have a dedicated Slack, Publication, Newsletter and host city-wise meet-ups all around India.

PHP Chat is a live-chat community of PHP Programmers from around the world, on Slack. If you're a PHP Programmer, Then you must join PHP Chat to connect with fellow PHP Programmers from across the globe.

A free programming community.

A community for Domain Driven Design (DDD), Command Query Responsibility Seperation (CQRS) and Event Sourcing Enthusiasts. Language and platform agnostic. Technical and non-technical welcome.

Open source software that brings E-Commerce to Rails.

Join our Slack Community and help us decentralize the internet. Status is a completely open source project, built for Ethereum. #blockchain #privacy #opensource #clojure

We build open source tools for developers building cloud native applications on Kubernetes. Telepresence lets you develop and debug your Kubernetes services locally while bridging to a remote Kube cluster. Ambassador is an API Gateway built on top of the Envoy Proxy. Ask questions about any of our tools here, or join in the general discussion about cloud native application development.

The Slack community for developers working with Microsoft technologies

The Rust Programming Language on slack. The official team for https://www.rust-lang.org

Anyone with any amount of interest in Node.js is welcome to join. This is meant to be a very open and collaborative community. A real-time discussion place for literally anything Node.js :)

Slack community for Erlang programming language.

R - team from all around the world helping each other in learning and exploring the R data analysis tool.

A channel for worldwide PHP-Users to connect

DevOpsLinks is an online community of a diverse and passionate DevOps, SysAdmins and Developers from all over the world.

It is all about UI/UX design and SketchApp software

Community of Node.js and .NET developers who utilize Edge.js to interop between the two within a single process on Windows, OSX, and Linux.

Parse Open Source Community

BZC write jokes and earn money!

The MUD Coders Guild is a community for people with a passion for creating text-based games.

Calling all Red Hat Linux SysAdmins! Come together and socialize from the comfort of your own server cave with like-minded people. Discuss the issues (or complaints) you have with your servers (or clients)!

Viewers of Level Up Tutorials, where there are over 790 free web development tutorials. A group of passionate learners and developers.

Machine learning & AI discussion, competitions and more!

A place to chat about Selenium, Puppeteer, Scrapy, or anything else related to web scraping.

Slack community for Symfony 2 users.

Building and operating serverless applications

Come hang out and talk about your project built on Foundation or help with your sites, apps, and email templates.

Electronics For All (An Open Community), For People around the world, who are interested in Embedded Systems (8051, AVR, PIC, ARM, etc,.),  Embedded OS (Android, Tizen, Brillo, mBED, Ubuntu, Windows IoT core, etc,.),  Electronics (Schematics, Simulation, PCB, etc,.),  Industrial Automation (PLC, CNC, SCADA, HMI,etc,.), Robotics (Industrial, Rovers, DoF, etc,.), Open-Hardware (Arduino, Raspberry PI, Digistump, Trinket), Open-Source Software, Tool, Framework and Platform, Beacons (PhysicalWeb, iBeacon, Eddystone,etc,.), 3D printing,  Professional networking, knowledge sharing and discussions on these technologies and engineering as well as emerging technologies.

A Slack chat based community for learning the Swift programming language together.