Open Source JobHub
  • Jobs
  • Companies
  • Employer Quick Start
  • About Us
  • Blog
  • Sign in
  • Sign up
  • Jobs
  • Companies
  • Employer Quick Start
  • About Us
  • Blog

Modal title

3 jobs found in united kingdom

Refine Search
Honeycomb
18 Aug, 2026
Senior Site Reliability Engineer
Honeycomb United Kingdom
What We’re Building Honeycomb is a service for the near and present future, defining observability and raising expectations of what developer tools can do! We’re working with well known companies like HelloFresh, Slack, LaunchDarkly, and Vanguard and more across a range of industries. This is an exciting time in our trajectory, we’ve closed Series D funding, scaled past the 200-person mark, and were named to Forbes’ America’s Best Startups of 2022 and 2023!    If you want to see what we’ve been up to, please check out these blog posts and Honeycomb.io press releases .    Who We Are We come for the impact, and stay for the culture! We’re a talented, opinionated, passionate, fiercely inclusive, and responsible group of bees. We have conviction and we strive to live  our values  every day. We want our people to do what they truly love amongst a team of highly talented (but humble) peers.   How We Work We are a fully distributed company, which means we...
Mattermost
18 Aug, 2026
Senior Security Engineer
Mattermost United Kingdom
Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. Mattermost powers high-stakes workflows across mission planning, real-time, real-world operations, DevSecOps, incident response, and cyber defense—enabling secure collaboration from tactical edge and DDIL environments to enterprise HQ. Teams operate across web, desktop, and mobile, with embedded interoperability for Microsoft Teams, Outlook, and Microsoft 365. To learn more, visit  www.mattermost.com Mattermost is the secure collaboration platform trusted by Global organizations. Our platform runs on-premises, cloud, and in air-gapped environments, enabling mission-critical workflows from the...
Element
06 Aug, 2026
Full time
Rust Engineer
Element Remote
Who we are Element is a startup comprised of the core team behind Matrix - the leading project for secure, open-source decentralized communication. Our mission is to make messaging as open and accessible as email, giving users control over their own communication and data. The Role We use Rust throughout our stack at Element from our SDK written in Rust through to our core Server technology Synapse. More concretely, you will:- Work on both sides of the API developing the client SDK and contributing to the migration of our server technology. Ensure that Element's next generation of clients and servers are fast, reliable and a joy to use. Work with our passionate and engaged open-source community. We are open to remote applications, though the core team are based in Europe and we would prefer a European (or nearby) timezone. We work in the open, so you can get a great feel for exactly what it would be like to work on Element. Come and say hi to the team in...
  • Home
  • Contact
  • About Us
  • Sponsors
  • Blog
  • In the News
  • Terms & Conditions
  • Privacy Policy
  • Employer
  • Employer Quickstart Guide
  • Post a Job
  • Pricing
  • Sign in
  • Job Seeker
  • Find Jobs
  • Create Resume
  • Sign in
  • LinkedIn
  • Follow us on Mastodon  mastodon
  • Facebook
  • Follow us on Bluesky  Bluesky
© 2026 Powered by Linux New Media USA, LLC