Spiros is Director of ProductOps at Mattermost, the technical author of the book Argo CD in Practice and an open source contributor. He loves knowledge sharing and he is a big fan of KISS principle.

Cloud & SaaS

Site Reliability Engineering

Platform Engineering

Developer Experience

Incident Management

Leadership & Culture

My presentations...

• Building a Platform with self-serve powers using ChatOps and Github Bots

• Chaos Engineering with k8s

My videos...

• Building a Platform with self-serve powers using ChatOps and Github Bots

• Chaos Engineering with k8s

My articles...

• GitOps and k8s bootstrapping

• Declarative BDD with Golang

• Unleashing Spartan Spirit: Leadership lessons

My books...

• Argo CD in Practice: The GitOps way of managing cloud-native applications

Jesús Espino is a Principal Engineer at Mattermost, with a deep passion for Open Source and knowledge sharing. He has been an active participant in numerous open source projects including Taiga, Penpot, Focalboard, or Testcontainers.

Go Internals

Low level

PostgreSQL

Javascript

React

My presentations...

• Understanding the memory model of 5 different languages (Devoxx France 2024)

• 10 Aha! Moments reading the go source code (GopherCon EU Athens 2024)

• The secret life of a goroutine (Fosdem 2024)

• Understanding the go runtime (Golab 2023)

• Understanding the Go Compiler (Gophercon UK 23)

• Squeezing a go function (Fosdem 2023)

• Deep dive in a SQL query (T3chFest 2024)

My videos...

• Understanding the memory model of 5 different languages (Devoxx France 2024)

• Fosdem 2024: The secret life of a goroutine

• Understanding the Go runtime

• Understanding the Go Compiler

• Hello World, from the Code to the Screen

• Struct Embedding, Instrumentation and Code Generation

• The Secret Life of a Goroutine

• Squeezing a go function

• Dissecting Slices, Maps and Channels in Go

My articles...

My podcasts...

• Mattermost, Go, and Tech Talk with Jesús Espino

• What Matters - Episode 2

• What Matters - Episode 18

Fullstack Senior Software Design Engineer at Mattermost. He has helped with the re-architecturing of the new version of the mobile app, written in React Native. Confident with React, React Native and Go, and always happy to learn new things. Fun fact: studying psychology for fun.

React

React Native

JavaScript

Psychology and soft skills

My presentations...

• Brain vs. Dev: bias him! (Presented at Sabadev Toledo 2024 and Open South Code 2024)

• Get the most of node_modules and Open Source (previously known as “How the magic of open source helps our project”) (Presented at Conf42 JavaScript 2023)

• How do we use React Native at Mattermost. Architecture and design (Presented at Codemotion Madrid 2023, DevBCN 2023, React Day Berlin 2023, CommitConf 2024)

• Level up your React Hooks (previosly known as “Dos and Don’ts with React Hooks”) (Presented at We are Developers World Congress 2024)

• What I learned migrating Mattermost to functional components (Not presented yet anywhere)

• MVI: Minimum Viable Interface (Not presented yet anywhere)

My videos...

• Codemotion Madrid 2023

• Conf42 JavaScript 2023

• React Day Berlin 2023

• Open South Code 2024

• CommitConf 2024

My articles...

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My podcasts...

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Corey is CTO and Co-Founder of Mattermost, Inc. He previously founded Tempo AI, an artificial intelligence startup that originated at the Stanford Research Institute, where he served as an Entrepreneur-in-Residence. Tempo AI raised funding from Sierra Ventures and Relay Ventures, and released a popular mobile smart calendaring virtual assistant before being bought by Salesforce. Earlier in his career, Corey served as engineering manager and architect for Microsoft Office in its enterprise software business across the SharePoint and Business Intelligence product lines. He was also an architect for VerticalNet, a publicly traded enterprise software company providing supply chain management solutions for the Global 2000. Corey is a graduate of California Polytechnic State University.

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Ian is CEO and Co-Founder of Mattermost. He previously founded SpinPunch, Inc., an online video game company with millions of players across 190 countries. Prior to SpinPunch, Ian was VP of Product at Flickme, a movie streaming startup backed by Sequoia Capital, Warner Brothers, and Sony Pictures. He also ran product management for Microsoft SkyDrive (now “OneDrive”) and Hotmail (now “http://Outlook.com ”) and led engineering teams for Microsoft Office. Ian holds over a dozen patents in analytic applications and is an alumnus of the University of Waterloo, where he worked at Trilogy Software during school, and the Stanford Graduate School of Business, where he served as a teaching assistant for Andy Grove and Myron Scholes.

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My presentations...

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Andrew Zigler is a developer advocate at Mattermost and public speaker at the intersection of AI and open source technologies. After studying Classics at The University of Texas at Austin and later teaching English in Japan, he continues to champion career and technical education for his audience.

AI, open source, developer communities, collaboration, ChatOps, technical education

My presentations...

• "Building AI bots on your private data with an open source stack" (25min) - DeveloperWeek 2024 presentation

• "Panel Discussion on Agile / DevOps" (45min) - Unleash Agile & DevOps in San Francisco 2024 panel

• "Building AI bots on your private data with an open source stack" (45min) - AI DevWorld 2023 workshop

• "Anatomy of a Mattermonster: How I Created an Open Source Developer Demo" (45min) - devopsdays Amsterdam 2023 workshop

• "How to Build a Custom Collaboration Stack with Open Source Software" (45min) - SCaLE 20x 2023 workshop

• "Avoiding Catastrophic Outages" (30min) - DeveloperWeek 2023 virtual presentation

• "Open Source All The Things" (45min) - All Things Open 2022 presentation

• "Open Source Your Software Development Lifecycle" (50min) - Collision 2022 masterclass

My videos...

• "Mattermost for Microsoft Teams" (1:50) - December 4, 2023

• "OpenOps is Available! Start Experimenting with Open Source AI" (9:10) - July 24, 2023

• "Build your own local AI with mattermost-ai-framework and GPT4All" (6:47) - May 30, 2023

• "Add ChatGPT to Mattermost in 2 minutes" (1:37) - March 23, 2023

• "Mattermost Solutions for GitLab" (1:43) - February 15, 2023

• "How to be a Jira and Mattermost power user" (5:50) - September 28, 2022

• "How to create your ChatOps bot" (3:09) - September 8, 2022

• "Integrating your GitLab CI/CD pipelines into Mattermost" (9:45) - August 12, 2022

My articles...

• "Mattermost AI Copilot: Accelerating the conversation with LLMs" - March 13, 2024

• "Hacktoberfest 2023: Incredible community contributions, digital rewards & a healthier planet" - November 23, 2023

• "Start using GPT-4 and local models with the open source OpenOps framework" - July 27, 2023

• "Community Spotlight: Mattermost ChatGPT bot by Sebastian Müller" - April 7, 2023

• "Mattermost Solutions for GitLab: Deep integration to ship software faster" - February 15, 2023

• "The quickest way to integrate Mattermost into your GitLab release pipeline" - December 13, 2022

• "How to Make Your Incident Response Plan with Mattermost" - May 11, 2022

My podcasts...

• "Open Communities With Andrew Zigler" (35min) - Arrested DevOps 2024 podcast