We are seeking a highly skilled and experienced Linux Administrator with a background in cybersecurity and in-depth expertise in F5 technologies. The ideal candidate will be responsible for maintaining and enhancing our Linux-based infrastructure, implementing robust security practices, and managing F5 solutions to optimize application delivery and security.
Key Responsibilities
Linux Administration:
- Oversee the configuration, management, and troubleshooting of Linux-based systems (e.g., RHEL, Oracle Linux).
- Automate tasks using scripting languages (e.g., Bash, Python, Perl).
- Monitor system performance, uptime, and capacity planning to ensure availability and scalability.
Security Management:
- Develop and enforce security policies and practices, including patch management and vulnerability assessments.
- Implement and manage security controls, such as firewalls, intrusion detection/prevention systems, and SELinux.
- Conduct regular audits, risk assessments to identify vulnerabilities and mitigate risks.
- Respond to and investigate security incidents, ensuring timely remediation and documentation.
F5 Technologies:
- Design, configure, and manage F5 solutions, including BIG-IP Local Traffic Manager (LTM), Application Security Manager (ASM), and Advanced WAF.
- Optimize load balancing and application delivery to ensure high availability and performance.
- Maintain and troubleshoot SSL/TLS certificates and encryption policies.
- Implement and manage web application firewall (WAF) policies for enhanced security.
Collaboration & Support:
- Work closely with DevOps, network, and security teams to ensure seamless integration and security of applications and infrastructure.
- Provide mentorship to junior team members and serve as a technical point of escalation.
- Participate in on-call rotations to support critical systems and services.
Required Qualifications
- Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience).
- Minimum of 5+ years of experience as a Linux Administrator, with a focus on enterprise environments.
- Expertise in managing F5 technologies, including BIG-IP LTM, ASM, and WAF.
- Strong knowledge of cybersecurity principles, frameworks (e.g., NIST, ISO 27001), and best practices.
- Proficiency in configuring and troubleshooting networking protocols (e.g., TCP/IP, DNS, HTTP/HTTPS).
- Experience with automation tools such as Ansible.
- Strong scripting skills (e.g., Bash, Python).
Salary: R100K
Location: Johannesburg
Duration: 6 Months
Only applicants that meet the minimum requirements will be considered!
Interested?
If interested, please apply directly through email: Zanele.Hlophe@adcorpgroup.com
N.B If emailing us directly, remember to insert “Linux Security Admin” in the email subject line, for consideration, and state which area you are applying for.