Linux Security Researcher

About the Role : We are seeking a highly skilled Linux Kernel Security Engineer to join our cybersecurity defense research team. The ideal candidate will have deep expertise in Linux internals, strong C/C++ programming skills, and hands-on experience in analyzing vulnerabilities, developing system-level security tools, and contributing to the hardening of Linux-based infrastructure.This is a unique opportunity to be part of a forward-looking security team focused on proactive threat mitigation, vulnerability research, and system integrity enhancement.Responsibilities : System Security Research & Development : - Analyze historical and emerging Linux vulnerabilities (CVE research and impact assessment).- Design and implement kernel-level monitoring and protection tools.- Develop secure and efficient Linux Kernel Modules (LKMs) for detection and defense purposes.- Research modern techniques for system integrity, syscall behavior analysis, and runtime protection.Security Engineering & Tooling : - Build low-level system utilities using C/C++ for security visibility and resilience.- Enhance Linux infrastructure with custom security modules, syscall instrumentation, and auditing tools.- Collaborate with infrastructure and DevSecOps teams to ensure secure system-level deployments.Risk Analysis & Hardening : - Evaluate system behavior under potential attack scenarios in a controlled and defensive context.- Recommend mitigations for vulnerabilities in kernel space and userland boundaries.- Support the implementation of hardening configurations and kernel security features such as SELinux, AppArmor, and seccomp.Documentation & Reporting : - Document technical findings, tools, and system modifications clearly and professionally.- Create detailed reports for internal teams and contribute to secure development guidelines.Eligibility : Education : - Bachelors degree in Computer Science, Cybersecurity, Information Security, or a related field.- Postgraduate degree or relevant research experience is an added advantage.Technical Skills : - Strong understanding of Linux Kernel architecture, including : 1. System call interface2. Process and memory management3. Filesystems and device drivers- Strong proficiency in C and C++ for both kernel-space and user-space development.- Experience with : 1. Socket programming and Linux networking stack2. Kernel debugging tools such as gdb, ftrace, kprobes, and perf3. Building and maintaining Loadable Kernel Modules (LKMs)Security Experience : - Familiarity with Linux vulnerability analysis, CVE assessment, and secure coding practices.- Understanding of kernel hardening techniques, mitigations, and runtime protections.- Knowledge of threat modeling and defensive strategies at the operating system level.Desired Eligibility : Certifications (Preferred) : - OSCP, OSEP, or equivalent advanced security certifications.- LFD420 (Linux Kernel Internals - Linux Foundation).- Additional Linux or security-focused certifications are a plus.Desirable Skills : - Experience with secure Linux deployment models.- Knowledge of Mandatory Access Control (MAC) systems such as SELinux and AppArmor.- Experience with container runtime security, including seccomp-bpf and namespaces.- Contributions to open-source security tools or Linux kernel projects.- Background in participating in security research communities or CTF platforms is preferred.Travel : - Travel may be required across the country for project execution, monitoring, and coordination with geographically distributed teams, as and when required.Communication : - Submit a cover letter summarising your experience in relevant technologies and software, along with your resume and latest passport-size photograph. (ref:hirist.tech)