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9 senior application security engineer jobs found

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senior application security engineer
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Full time  (1)
CloudLinux
19 Oct, 2026
Staff Engineer, Imunify360 (remote work)
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.  Check out our website for more information: cloudlinux.com We are currently hiring Staff Engineers for various projects within the Imunify360 product. Imunify360 is CloudLinux's multi-layer security suite for Linux web servers: antivirus and malware cleanup, WAF, IDS/IPS, Proactive Defense, patch management (KernelCare/Patchman), and IP/domain reputation. It runs on hundreds of thousands of shared, VPS and dedicated hosting servers, under cPanel, Plesk, DirectAdmin and standalone. The engineering org is 60+ engineers in squads covering backend, core, server agent, malware research,...
CloudBees Inc
14 Oct, 2026
Senior Engineering Manager - Tenant
CloudBees Inc United States
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...
CloudBees Inc
14 Oct, 2026
Senior Engineering Manager - Tenant
CloudBees Inc Canada
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...
CloudBees Inc
12 Oct, 2026
Senior Software Engineer II - Storage
CloudBees Inc Canada
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...
CloudBees Inc
12 Oct, 2026
Senior Software Engineer II - Storage
CloudBees Inc United States
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
01 Oct, 2026
Senior Mobile 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 Mobile Engineer to take ownership of the Mattermost mobile experience for teams working in defense, intelligence, and critical infrastructure. Our users operate in DDIL...
CloudLinux
23 Oct, 2026
Full time
Lead Security Engineer - Vulnerability Response (Imunify360)
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: cloudlinux.com Imunify360 Security Suite 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. We are looking for a Lead Security Engineer - Vulnerability Response to join our Web Protection Team. The challenge ahead When a critical vulnerability in a popular web application or WordPress plugin goes public, attackers start exploiting it within hours. Most site owners can't...
CloudLinux
19 Oct, 2026
Staff Security Engineer, Imunify360 (remote work)
CloudLinux Remote (Lisbon, Portugal)
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: cloudlinux.com We are currently hiring a Staff Security Engineer within the Imunify360 product. Imunify360 is CloudLinux's security suite for Linux web servers. It protects hundreds of thousands of hosting servers and the websites running on them, so it sees most large-scale web attacks early — often in the first hours. Check out our website for more information: https://imunify360.com/ Role Mission & Scope At Imunify360, protecting customers from evolving cyber threats requires close collaboration between security research, engineering,...
Mattermost
01 Oct, 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...
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