Web App Platform Engineer (Remote)

Waterloo, ON

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Mattermost is the industry’s leading open-source enterprise-grade messaging platform. Customers including Intel, Ubisoft, Samsung, Cigna, BNP, European Commission, Social Security Administration, and Affirm use Mattermost to enable their teams to collaborate securely and privately anywhere. Many of the world’s leading privacy-conscious enterprises like The US Department of Defense work better by connecting people, tools, and automation to increase developer collaboration using Mattermost. Our private cloud messaging platform offers secure, configurable, highly scalable messaging using web, mobile, and desktop applications and provides deep integrations with hundreds of SaaS and on-premises tools and applications. 
We value high impact work, ownership, self-awareness and being focused on customer success. If these values match who you are, we hope you'll learn more about working at Mattermost and apply!
We are looking for a web app engineer who excels at the “back of frontend” to join our platform team. Do you know the ins and outs of JavaScript, React and Redux? Do you like designing and building the front end architecture for a large, complex and performant web application? Are you self-driven, take strong ownership and want to work with an awesome open source community? If you answered yes to all of those, then you’re what we’re looking for.


  • Design, develop and maintain the front end architecture of the Mattermost web application
  • Write thoughtful, high-quality code in JavaScript and TypeScript
  • Investigate, identify and implement solutions for performance bottlenecks
  • Develop the architecture of our Electron desktop application
  • Support feature teams with expertise and training in regards to best practices
  • Be a technical project owner, driving projects from kickoff to completion
  • Set direction and standards for a large open source project
  • Guide, review and support open source contributors and community members
  • Troubleshoot with and work incidents with customers as related to the above responsibilities

Required Background/Skills:

  • BS in Computer Science, Computer Engineering, or related field/experience
  • 3+ years of experience in complex web applications that are scalable, manageable and performant
  • Excellent written and verbal communication skills
  • Strong skills in our technology stack: Typescript, Javascript, React, Redux, HTML, CSS, SCSS
  • Experience writing automated unit, integration and end-to-end tests
  • Ability to work independently in an asynchronous team environment


  • Comfortable with GitHub, GitLab, Jira, CircleCI
  • Experience working with Electron
  • Ability to dive into backend Go code from time to time
  • Experience working in open source communities
Mattermost is a remote-first company with staff living and working across the globe. We are currently hiring staff in these countries/regions:
Australia - Canada - Chile - Finland - Georgia - Germany - India - Mauritius - Philippines - Poland - South Africa - Turkey - Ukraine - Uganda - United Kingdom  - United States 
We are constantly working towards adding more countries/regions to this list, but first we need to make sure we are compliant with local laws and regulations, which takes time. 
Mattermost is made up of people from a wide variety of backgrounds and lifestyles. We embrace diversity and invite applications from people from all walks of life. We don't discriminate against staff or applicants based on gender identity or expression, sexual orientation, race, religion, age, national origin, citizenship, disability, pregnancy status, veteran status, or any other differences. Also, if you have a disability, please let us know if there's any way we can make the interview process better for you; we're happy to accommodate!
Job region(s): Remote/Anywhere North America
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