
Unix/Linux Administrator, Security Remediation
Overview
You will own security remediation for Unix/Linux systems under Project Aegis, hardening RHEL and Solaris environments to eliminate vulnerabilities. You work with a security team and application groups to close compliance gaps and reduce risk. This contract role in Boston offers direct impact on critical infrastructure.
What You'll Do7
- 1Remediate security vulnerabilities identified under Project Aegis, applying patches and configuration changes across Unix/Linux servers.
- 2Perform operating system upgrades and hardening of RHEL, Solaris, and AIX environments to meet security benchmarks.
- 3Analyze compliance findings and resolve issues related to CIS controls and STIG standards.
- 4Develop and maintain bash and Perl scripts to automate remediation and system checks.
- 5Support application teams during patching cycles, testing, and production rollouts.
- 6Decommission legacy infrastructure, ensuring data migration and service retirement follow security protocols.
- 7Document remediation procedures and update runbooks for recurring tasks.
Requirements7
- 15+ years administering Unix/Linux systems in enterprise environments.
- 2Hands-on expertise with RHEL and Solaris patching and hardening.
- 3Experience with CIS benchmarks and STIG implementation.
- 4Strong scripting skills in bash or Perl.
- 5Understanding of TCP/IP, DNS, and LDAP.
- 6Familiarity with Ansible or Puppet for configuration management.
- 7Prior work on security remediation or compliance projects.
Salary Insight
Salary not disclosed in listing
Location
Required Skills
Similar open positions
Explore active roles that match your skills and interests.

Cyber Sphere LLC
VerifiedUnix Linux Admin, Security Remediation & Patching
Own Unix/Linux security remediation under Project Aegis, hardening and patching Red Hat Enterprise Linux and Solaris systems across a Boston enterprise. You will join an infrastructure team supporting application delivery, focusing on compliance-driven changes. This contract role stands out for its deep exposure to cybersecurity controls and high-visibility remediation work.

Baanyan Software Services, Inc.
VerifiedUnix/Linux Administrator, Security Remediation & Patching
You will own security vulnerability remediation for Unix and Linux systems under Project Aegis, covering 500+ servers. You will drive patching, hardening, and compliance fixes while collaborating with application teams. This contract role focuses on reducing technology risk through systematic infrastructure modernization. You will be the key technical resource for decommissioning legacy systems and automating security controls.

Dexian DISYS
VerifiedLinux Systems Administrator, Red Hat & Automation
You will own the design, deployment, and maintenance of Red Hat Enterprise Linux environments for a mission-critical federal program. You will ensure reliable and secure operations across a Linux infrastructure, supporting a team that values technical depth and autonomy. This contract role in Washington, District of Columbia requires onsite presence and offers the chance to tackle complex system challenges with modern scripting and automation tools.

KONNECTINGTREE INC
VerifiedLinux Administrator, Enterprise Infrastructure
This role owns the health and stability of enterprise Linux environments across on-prem and cloud, supporting thousands of servers. You will manage daily operations, including patching, performance tuning, and incident response, with 10+ years of deep Linux administration. Work alongside a team of engineers and collaborate with DevOps to implement automation. The role stands out for its mix of hands-on troubleshooting and strategic infrastructure improvements.
Robert Half
VerifiedPatch Plan Program Manager, IT Security & Compliance
Own enterprise patch management for a utility client in Portland, Oregon. Coordinate patch cycles across Windows Server, Linux, and network devices to cut security exposure while keeping systems stable. Work with IT operations, security, and application teams to prioritize and execute patches. Report to IT leadership on compliance and risk. This contract role pays $64/hour and runs long-term with hybrid onsite work.

ClifyX
VerifiedRHEL Linux and IBM AIX Administrator
You will own the design and maintenance of RHEL golden images and manage IBM AIX environments at a large enterprise scale. Your work ensures standardization, security compliance, and peak performance across hybrid infrastructure. You will collaborate with application and infrastructure teams to deploy and patch systems using Red Hat Satellite and other automation tools. This role offers hands-on work with mission-critical systems in a hybrid onsite environment.