Staff Engineer, Imunify360

🔥 0 minutes ago

🌐 Czechia, Portugal, +2 more countries – Remote

🇨🇿 Czechia – Remote 🇵🇹 Portugal – Remote 🇪🇸 Spain – Remote 🇵🇱 Poland – Remote

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

👻 Ghost score 10%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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CloudLinux

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2009

☁️ SaaS

🔐 Security

🌐 Web 3

SaaS • Security • Web 3

CloudLinux is a leading provider of operating systems designed specifically for web hosting environments. The company offers a line of products including CloudLinux OS Legacy, CloudLinux OS Shared Pro, and CloudLinux OS Solo, each tailored to improve server stability, security, and performance. With features such as kernel live patching, advanced automation and monitoring tools, and specialized WordPress optimization, CloudLinux helps hosting companies maximize security and profitability while ensuring stable server environments. Over 4,000 companies trust CloudLinux to power millions of websites worldwide, benefitting from increased stability and reduced churn rates. The company emphasizes compatibility with major hosting control panels and CentOS, offering solutions for shared hosts, agencies, and small businesses.

📋 Description

• Own the end-to-end architecture of Imunify360, including agent, server, cloud backends, data flows, and contracts. • Write and drive ADRs and RFCs for cross-squad changes. • Run the Wednesday/Friday architecture sync with the Technical Director. • Maintain a technical-debt and security/compliance/uptime risk register, with owners and dates, and secure roadmap funding for top items. • Solve cross-cutting problems involving agent resource usage, detection quality, fleet upgrade/release safety, backend scale and cost, and migration of hot paths from Python to Go/Rust. • Set standards for design reviews, code review, testing, observability, and secure SDLC. • Lead or co-lead SEV1/SEV2 incidents and ensure blameless post-mortems and action closure. • Drive practical AI-augmented SDLC standards. • Mentor senior engineers and squad leads toward staff-level scope. • Serve as a technical bar-raiser in senior and lead hiring loops. • Represent engineering in product and sales discussions, including estimates and feasibility. • Spend approximately 30–50% of the time writing production code as an individual contributor.

🎯 Requirements

• 10+ years building and operating production software, with 3+ years in a Staff/Principal/Tech Lead scope spanning several teams. • Strong production experience in Python and at least one of Go or Rust. • Deep Linux internals: processes, filesystems, networking, kernel interfaces (inotify/fanotify, eBPF or similar), packaging (RPM/DEB), systemd. • Track record of designing and running distributed systems at scale: async backends, queues, databases, caching, failure modes. • Experience owning systems that run on customer machines, such as agents, daemons, or on-prem software, including upgrade safety, backward compatibility, and resource budgets. • Security mindset: threat modeling, secure coding, and handling untrusted input (files, HTTP traffic, user content). • Ability to write clear, short technical documents and drive decisions in async, remote teams across time zones. • Daily use of AI coding tools such as Cursor, Claude, and MCP-based tooling, with ability to critically judge their output. • Experience in server security, including AV/malware detection, WAF (ModSecurity/Coraza), IDS/IPS, rootkit detection, or CVE/patch management. • Experience with WordPress and Node.JS web application hosting at scale. • ML in production for classification/detection, including evaluation and safe model rollout. • Observability at scale: Prometheus, Grafana, Sentry, ClickHouse or similar. • CI/CD ownership: GitLab CI, Jenkins, and build systems for multi-distro packaging. • Open-source contributions in security or systems tooling.

🏖️ Benefits

• Fully remote work with flexible working hours. • 24 paid vacation days. • 10 national holidays. • Unlimited sick leave. • Private medical insurance compensation. • Co-working reimbursement. • Gym/sports reimbursement. • Education budget. • Opportunity to receive a reward for innovative ideas that the company can patent.