Apex Systems · 1 month ago
Linux Systems Engineer
United States
Contract
Remote
Senior LevelApex Systems is a world-class IT services company that serves thousands of clients across the globe. They are seeking a Linux Systems Engineer to lead the design, implementation, and lifecycle management of mission-critical OT platforms across Windows and Linux environments, collaborating with IT, cybersecurity, and operations teams to deliver secure and scalable infrastructure solutions.
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Responsibilities
Design, implement, and maintain enterprise-grade systems across Windows Server and Linux platforms, ensuring high availability, security, and compliance in OT environments
Architect and optimize Linux systems for performance and scalability, including advanced security hardening (SELinux, firewalls, SSH) and lifecycle management using automation tools (Ansible, Puppet)
Lead identity integration across Active Directory and Linux directory services, ensuring seamless authentication and authorization
Develop and enforce IAM strategies, including IGA and PAM solutions, while collaborating with cybersecurity teams to implement zero-trust principles
Drive automation of provisioning, configuration, and patching through advanced scripting (PowerShell, Bash, Python) and orchestration frameworks
Oversee software deployment and configuration management using SCCM, Intune, and Linux-native tools
Integrate and secure hybrid cloud platforms (Azure, AWS), ensuring regulatory compliance and operational resilience
Troubleshoot complex system issues across Windows and Linux, including kernel, networking, and storage, and lead root cause analysis and remediation
Configure and maintain core Linux services (DNS, DHCP, NTP, syslog) and support containerization/orchestration initiatives (Docker, Kubernetes)
Monitor and optimize system performance, implementing proactive measures for disaster recovery and business continuity
Produce and maintain architectural documentation, operational procedures, and governance frameworks
Act as a technical advisor in a Scaled Agile (SAFe) environment, influencing system roadmaps and enterprise architecture decisions
Mentor junior engineers and foster knowledge-sharing across teams
Qualification
Required
Expertise in Linux system administration, including performance tuning and advanced troubleshooting
Strong knowledge of Linux security frameworks and compliance standards
Hands-on experience with Linux automation and configuration management tools (e.g., Ansible, Puppet, Chef)
Familiarity with Linux networking concepts and tools (iptables, netfilter, tcpdump)
Extensive experience in enterprise systems engineering, with proven leadership in designing and managing large-scale Windows and Linux environments
Advanced knowledge of Windows Server (2016/2019/2022) and Linux distributions (RHEL, Debian, Ubuntu)
Deep understanding of Active Directory architecture and Linux identity management (LDAP, Kerberos, SSSD)
Proficiency in IAM, IGA, and PAM technologies (e.g., SailPoint, CyberArk)
Strong scripting and automation skills across PowerShell, Bash, and Python
Expertise in SCCM, Intune, and Linux-native configuration management tools
Hands-on experience with cloud platforms (Azure, AWS) and hybrid integration strategies
Preferred
Proven track record of leading enterprise migrations and modernization initiatives
Experience implementing zero-trust architectures and advanced security frameworks
Familiarity with containerization and orchestration (Docker, Kubernetes) in OT contexts
Knowledge of virtualization technologies (VMware, Hyper-V) and disaster recovery planning
Benefits
Medical
Dental
Vision
Life
Disability
Other insurance plans
ESPP (employee stock purchase program)
401K program
HSA (Health Savings Account on the HDHP plan)
SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions
Corporate discount savings program
Discounts
On-demand training program
Access to certification prep
Library of technical and leadership courses/books/seminars
Certification discounts
Perks to associations that include CompTIA and IIBA
Dedicated customer service team for our Consultants
Certified Career Coach
Company
Apex Systems
Apex Systems, a division of On Assignment, provides organizations with IT staffing solutions to address gaps in their current workforce.
Founded in 1995
1001-5000 employees
H1B Sponsorship
Apex Systems has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (28)
2024 (21)
2023 (35)
2022 (26)
2021 (29)
2020 (38)
Funding
Current Stage
Late StageLeadership Team
Roger Wahman
Chief Technology Officer - SVP
Andrea Schiola
Global Head of Technology Partnerships, SVP, Principal
Recent News
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