Job Opportunities API

Location:  Fully Remote (Worldwide) – Focus on LATAM time zones (Americas) Employment Type:  Full-time, B2B / Independent Contractor (or W2 for US-based candidates) Company:  CloudLinux / TuxCare (DevJBS Inc.) About CloudLinux / TuxCare CloudLinux is the company behind the CloudLinux OS and a suite of security solutions for the Linux ecosystem. Our TuxCare division is a global leader in automated live patching for Linux kernels, enabling enterprises to apply critical security updates without rebooting or downtime. We also provide extended support for end-of-life Linux distributions, helping organizations maintain compliance and security beyond standard EOL dates. With a team of 250+ professionals and over 4,500 clients—including Dell, GoDaddy, IBM, and Zoom—we are committed to delivering robust, enterprise-grade infrastructure solutions. Our fully remote, global team operates across the US, Europe, Latin America, and beyond. Role Context: KernelCare ELS The KernelCare Extended Lifecycle Support (ELS) team is dedicated to backporting security fixes and critical bug patches from upstream Linux kernels to older, enterprise-used kernel versions. Our mission is to keep legacy systems secure and stable, even when the original vendor no longer provides support. This is a  hands-on, engineering-heavy role . You will not just study patches—you will actively backport, build, validate, and deliver kernel updates to production-grade environments. You’ll work closely with upstream Linux, RPM and Debian packaging systems, and modern automation tooling, including AI-assisted development workflows. Key Responsibilities Research & Analysis:  Investigate upstream security (CVE) and bug fixes; analyze patch dependencies and impact on legacy kernels. Backporting:  Manually backport Linux kernel patches to older kernel versions used in RPM-based and Debian-based distributions. Conflict Resolution:  Resolve merge conflicts between upstream changes and target kernel codebases. Kernel Packaging:  Build and rebuild kernel source and binary packages using reproducible build environments for RPM and Debian ecosystems. Validation & Testing:  Validate patched kernels through build tests, runtime tests, and regression analysis to ensure stability. Tooling & Automation:  Enhance internal workflows (patch preparation, build automation, validation pipelines) using Python, Go, and Shell scripting. AI Integration:  Leverage agentic/AI-assisted development tools to accelerate tasks, while rigorously verifying every generated output. Documentation & Collaboration:  Document technical decisions, participate in code reviews, and communicate clearly with team members across time zones. Requirements Must-Have Strong C proficiency  and hands-on Linux debugging skills. Proven commercial experience  in Linux kernel development—specifically patching, backporting, or debugging. Solid experience with  Git ,  GNU build tools  (make, autotools), and standard Linux developer utilities. Experience building  Linux kernels  or distribution packages from source. Scripting and automation skills:  Python, Go, or Shell . Practical exposure to  AI-assisted development tools  (e.g., Copilot, Codeium, or similar), with a disciplined approach to code verification. English:  Intermediate or higher (B1+), both written and spoken—you’ll be working in an international team and communicating in English daily. Strong ownership mindset, balanced technical judgment, and ability to articulate trade-offs. Nice-to-Have Experience with  RPM/SRPM  or  Debian kernel packaging . Familiarity with  security patching , CVE analysis, and extended lifecycle maintenance. Working knowledge of  Docker, QEMU, Jenkins , or other CI systems. Experience designing kernel validat