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

31 jobs found

Refine Search
Current Search
remote
Refine by Categories
Sales  (1) Technical Writing  (1)
Refine by Job Type
Full time  (11) Contractor  (1)
CloudLinux
03 Jul, 2026
Full time
Engineering Manager, Language Security (TuxCare)
CloudLinux Remote (Warsaw, Poland)
TuxCare offers a portfolio of security solutions for Linux and open-source software aimed at enterprise organizations. With TuxCare, enterprises can automate live vulnerability patching, minimize downtime, keep their applications secure and compliant, and get support from a team that knows Linux security best – covering the most popular Linux distributions, end-of-life systems, programming languages, and much more. We are looking for an experienced Engineering Manager to take ownership of TuxCare's Language Security Research function — a group of four teams responsible for delivering security patches for end-of-life and non-EOL open-source language runtimes and frameworks. TuxCare's Endless Lifecycle Support (ELS) helps organizations continue using end-of-life software securely. We provide security patches for unsupported versions of Linux distributions and language ecosystems — including Java, JavaScript/Node.js, Python, PHP, Go, Spring, Angular, Django, Flask, and more....
CloudLinux
01 Jul, 2026
Senior Manager, WordPress Ecosystem Marketing (remote-only, Europe)
CloudLinux Remote (Warsaw, Poland)
CloudLinux is a global remote-first company. We are driven by our principles: do the right thing, employees first, we are remote first, and we deliver high-volume, low-cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Every person on our team supports each other and does what we can to ensure we all are successful.  Check out our website for more information https://cloudlinux.com/ The WordPress ecosystem is one of the most concentrated B2B audiences in web infrastructure. Over 800 million websites run WordPress. The companies managing those sites face real, expensive problems around security, performance, and operational scale. We have products that solve exactly those problems, and would like to grow brand recognition in the WordPress ecosystem. We are building a dedicated go-to-market presence in the WordPress ecosystem, and we are looking for the person who will own it. This is the opportunity to build...
CloudLinux
30 Jun, 2026
Enterprise Account Executive (remote-only Europe)
CloudLinux Remote (Prague, Czechia)
CloudLinux is a global remote-first company. We are driven by our principles: do the right thing, employees first, we are remote first, and we deliver high volume, low-cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Every person on our team supports each other and does what we can to ensure we all are successful.  TuxCare is a subsidiary of CloudLinux. It offers a portfolio of security solutions for Linux and open-source software aimed at enterprise organizations. With TuxCare, enterprises can automate live vulnerability patching, minimize downtime, keep their applications secure and compliant, and get support from a team that knows Linux security best – covering the most popular Linux distributions, end-of-life systems, programming languages, and much more. For more information, visit our website: https://tuxcare.com/ We are looking for an experienced Enterprise Account Executive with a strong background in...
CloudLinux
24 Jun, 2026
Full time
Founding RASP Engineer - Node.js (remote-only)
CloudLinux Remote (Warsaw, Poland)
CloudLinux is a global remote-first company. We are driven by our principles: do the right thing, employees first, we are remote first, and we deliver high-volume, low-cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Every person on our team supports each other and does what we can to ensure we all are successful.  Check out our website for more information https://cloudlinux.com/ Imunify360 Security Suite is a product of CloudLinux Inc., the maker of the #1 OS in security and stability for hosting providers. Imunify is an innovative security solution designed specifically for shared and VPS/Dedicated servers. The automated, easy-to-use solution with the six-layer approach to security delivers comprehensive and complete attack prevention. The mission We protect web hosting providers and the sites running on their infrastructure through a defense-in-depth stack: web-server-layer WAF, runtime application...
CloudLinux
18 Jun, 2026
Full time
Head of QA (remote-only, worldwide remote)
CloudLinux Remote (Warsaw, Poland)
TuxCare is a subsidiary of CloudLinux. It offers a portfolio of security solutions for Linux and open-source software aimed at enterprise organisations. With TuxCare, enterprises can automate live vulnerability patching, minimise downtime, keep their applications secure and compliant, and get support from a team that knows Linux security best — covering the most popular Linux distributions, end-of-life systems, programming languages, and much more. For more information, visit our website: https://tuxcare.com/ One of TuxCare's key products is Endless Lifecycle Support (ELS) , which enables organisations to securely continue using Linux distributions and software languages that have reached end of life or no longer receive standard security updates. ELS delivers vulnerability patches for unsupported versions of CentOS, Ubuntu, Debian, Oracle Linux, as well as for runtimes and frameworks such as PHP, Python, Spring, Angular/AngularJS, Django, and Flask. More details:...
Collabora
17 Jun, 2026
Full time
GPU Consultant Engineer (Remote/Anywhere)
Collabora Remote
About This Role Build open source graphics drivers that run on real hardware. You will work directly in the Vulkan driver stack, contributing upstream to Mesa and the Linux DRM subsystem, and solving problems that affect how GPUs are used across the Linux ecosystem. This isn't just maintenance work. You will be debugging real hardware behaviour, reading GPU specs and kernel internals and writing code that ends up in distributions used by millions of people. The work is technically deep and the feedback loop is direct. The role combines low-level systems programming with open source collaboration. You will work alongside experienced graphics engineers, develop genuine expertise in how modern GPUs work f rom the kernel up, and grow into a contributor that the broader open source graphics community knows by name.   Location: Fully remote Travel: Optional conference attendance   What You'll Actually Do Upstream First: Contribute directly to Mesa and the...
Collabora
17 Jun, 2026
Full time
Audio Consultant Engineer - Linux Audio Stack (Remote/Anywhere)
Collabora Remote
  What You'll Actually Do Upstream & Community Participation : Contribute to and collaborate with WirePlumber, PipeWire, and ALSA upstream communities Real-World Impact : Design, integrate, and ship embedded Linux audio systems that work reliably in real-world products Deep Technical Work : Implement and debug PipeWire + WirePlumber stacks, including ALSA, DSPs, and system-level interactions Customer Collaboration : Work directly with customer teams to translate requirements into robust audio architectures and solutions Breadth When Needed : Support adjacent areas like Bluetooth audio and Linux audio tooling when required ( pw-cli, pw-top, alsa-utils, tracing frameworks ) to diagnose and resolve issues efficiently Be a Technical Advisor: Explain complex audio architecture decisions to product teams, provide honest assessments of what is and isn't possible and build trust through transparent communication   What...
Collabora
17 Jun, 2026
Full time
Engineering People Lead - Fixed Term 12 Month Contract (Remote/Europe)
Collabora Remote
About Us   We are a globally distributed open source software consultancy, partnering with organisations to solve complex technical challenges through transparency, collaboration, and community-driven innovation. We are now looking for an exceptional   People Lead to support and empower our engineering teams.   About the Role   As a People Leader, you will work with a globally dispersed workforce, creating a supportive, structured, and high-performance environment for our engineers. You will collaborate with individuals across the world, using your relationship-building skills and emotional intelligence to foster trust, drive accountability, and help our people thrive.   This role requires someone who is organised, proactive, confident in navigating sensitive situations, and motivated by helping others succeed—all within a fully remote, multicultural organisation.   What You'll Do Build strong, trusting relationships with engineers across multiple...
Collabora
17 Jun, 2026
Full time
Platform Engineering Consultant (Remote/Anywhere)
Collabora Remote
About This Role Build and operate infrastructure that powers open source software at scale. You will work directly with client engineering teams to design, deploy and maintain production platforms. Kubernetes is central to how we work and a tool we are investing in heavily, but the role spans the broader infrastructure landscape. This isn't passive infrastructure management. You will be solving real operational problems, recommending open source solutions that genuinely fit the problem and helping clients build platforms they can own and maintain long term. This role combines deep technical work with collaborative consulting. You will partner with client engineering teams to solve their toughest infrastructure challenges, develop genuine platform expertise and grow into technical leadership over time.   Location: Fully remote (preference for EU or East Coast US hours) Travel: Optional conference attendance   What You'll Actually Do Platform...
Collabora
17 Jun, 2026
Full time
Linux Kernel Consultant (Remote/Anywhere)
Collabora Remote
About this role Ship kernel code that runs on millions of devices worldwide. You'll work directly on upstream Linux development for a flagship consumer product while contributing to the broader kernel community. This isn't just maintenance work, you'll be solving hard problems and your code goes upstream. This role suits an engineer who wants to go deep: you will have the space to develop genuine subsystem expertise, build your upstream profile and grow into technical leadership over time.   This role combines deep technical work with collaborative consulting. You will partner with client engineering teams to solve their toughest kernel challenges while championing upstream-first approaches.   Location: Fully remote (preference for EU or East Coast US hours) Travel: Optional conference attendance   What you'll actually do Upstream First: Contribute directly to mainline Linux kernel development: schedulers, power management, device drivers and core...
Mattermost
17 Jun, 2026
Senior React Native Engineer
Mattermost United States
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 We are seeking a Senior React Native Engineer to take ownership of the Mattermost mobile experience for teams working in defense, intelligence, and critical infrastructure. This role sits at the...
Mattermost
17 Jun, 2026
Senior Security Engineer
Mattermost Spain
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 We are hiring a Senior Security Engineer to protect the people, infrastructure, and tooling that goes into building and hosting Mattermost. This is a hands-on, high-impact role at the intersection...
Mattermost
17 Jun, 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...
Mattermost
17 Jun, 2026
Staff Software Engineer, Testing Infrastructure
Mattermost United States
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 seeking a visionary Staff Software Design Engineer (SDE) in Testing Infrastructure to lead a company-wide transformation of test automation and quality engineering . In this highly...
Mattermost
17 Jun, 2026
US Defense Software Engineering Lead
Mattermost United States
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 seeking a fully remote US Defense Software Engineering Lead anywhere in the United States to lead a small, agile development team dedicated to building mission-critical capabilities on...
Mattermost
17 Jun, 2026
Senior Security Engineer
Mattermost Germany
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   We are hiring a Senior Security Engineer to protect the people, infrastructure, and tooling that goes into building and hosting Mattermost. This is a hands-on, high-impact role at the...
Mattermost
17 Jun, 2026
Forward Deployed Engineer
Mattermost United States
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 Federal | TS/SCI Environments Mattermost Federal builds secure collaboration platforms used by U.S. defense, intelligence, and national security organizations operating in the most...
Mattermost
17 Jun, 2026
Lead Site Reliability Engineer
Mattermost United States
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 seeking an experienced and visionary Lead Site Reliability Engineer (SRE) to guide the architecture, reliability, and operational excellence of the infrastructure powering our...
CloudBees Inc
17 Jun, 2026
Sr. Security Operations Engineer
CloudBees Inc United Kingdom
Job Title: Sr. Security Operations Engineer Employment Type: Full-time Work Location: Remote – UK or Ireland Department: CISO About CloudBees CloudBees provides the leading software delivery platform for enterprises, enabling them to continuously innovate, compete, and win in a world powered by the digital experience. Designed for the world's largest organizations with the most complex requirements, CloudBees enables software development organizations to deliver scalable, compliant, governed, and secure software from the code a developer writes to the people who use it. The platform connects with other best-of-breed tools, improves the developer experience, and enables organizations to bring digital innovation to life continuously, adapt quickly, and unlock business outcomes that create market leaders and disruptors. CloudBees was founded in 2010 and is backed by Goldman Sachs, Morgan Stanley, Bridgepoint Credit, HSBC, Golub Capital, Delta-v Capital, Matrix...
CloudBees Inc
17 Jun, 2026
Staff Software Engineer (Agentic Systems) – AI for Software Delivery
CloudBees Inc India
Job Title: Staff Software Engineer (Agentic Systems) – AI for Software Delivery Job Type: Full-Time, Remote About CloudBees CloudBees helps enterprises deliver secure, compliant software at scale. We sit at the center of the software delivery lifecycle, from Jenkins-based CI to modern cloud-native DevSecOps platforms. Our focus is simple: make software delivery faster, safer, and more reliable for large engineering organizations. About the Role We’re embedding AI across the entire software development lifecycle to reduce the time it takes to understand, triage, and resolve problems - from planning and code, through CI/CD, to production systems. As a Staff Engineer, you will lead the design and evolution of agentic systems that operate across the SDLC. These systems ingest signals from multiple sources - code, pull requests, tests, pipelines, incidents, and documentation - and reason over them to provide high-confidence insights and, over time, take safe,...
  • 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