Overview:
ACS Professional Staffing is looking for an employee to work hybrid with our client. This System Administrator 3 will design, support, and maintain secure Linux and UNIX system architectures aligned with federal security standards, ensuring high availability and operational reliability. The role performs day to day administration of Red Hat and Oracle Linux environments, including patching, troubleshooting, automation, and release support across on prem and virtualized platforms. Responsibilities include managing Puppet, GitLab change control, SAN/NAS storage, VMware ESXi, and integration with Windows, LDAP, and messaging systems. Qualified candidates bring hands on experience with Linux system architecture, configuration management, security hardening, scripting, and enterprise application servers, with Linux and security certifications preferred. This full-time position is located in Portland, OR.
Responsibilities:
- Assist developers and application support teams design system architectures that comply with Federal Information Security Modernization Act (FISMA) and policies.
- Provide architectural guidance to developers and team members on the implementation of Linux and UNIX platforms.
- Perform operations and maintenance on Linux servers.
- Support, configure, and maintain Puppet infrastructure, including the ability to create and perform unit test pipeline workflows.
- Configure and apply Puppet SCE components for security compliance.
- Support and configure gitlab change control environment.
- Manage data store activities local and using SAN protocols such as CIFS, NFS.
- Maintain Oracle and Redhat Linux with the latest hardware and software firmware and configurations including regular patching.
- Maintain connectivity with Windows file and print servers and configure SMTP to exchange mail with an Exchange system.
- Manage LDAP configuration within Active Directory using Centrify.
- Leverage existing toolsets to automate status monitoring/alarming.
- Support Linux on VMware ESXi in coordination with a Fabric support team.
- Design improvements to various service and process management capabilities of the major Nix platforms.
- Perform system administration including the following actions:
- Configuring applicable software and systems.
- Maintaining local documentation.
- Installing/updating/removing software.
- Applying change control processes and procedures.
- Troubleshooting and resolving issues.
- Patch management.
- Software deployment services.
- Linux infrastructure.
- In-house developed applications.
- Shell and Python scripting/automation.
- Managing cron software utility.
- Validate hardware and infrastructure design specifications.
- Assist in the technical design.
- Monitor and verify system availability to meet service level agreements.
- Provide advice and assistance to customers, troubleshoot complex problems, and provide support in a manner that minimizes interruptions in customers’ ability to carry out business activities.
- Regularly publish and communicate how each environment is configured (software versions, hardware, network, IP addresses, etc.).
- Maintain application documentation as it relates to specific implementations.
- Communicate with technical team and quality assurance (QA) team members to verify that implementations meet requirements.
- Perform routine audits of security controls to verify compliance.
- Apply configuration settings to servers as pre-defined and documented by federal manager or lead.
- Assist in release management and deployment of application customizations.
- Participate in a regular rotation providing on-call support for services reliant upon Linux.
Requirements:
- Bachelor’s degree in information technology, computer science or a closely related technical discipline is preferred.
- 10 years combination of education and/or work experience in computer/information technology or related field is required.
- 5 years of experience working in a large production environment is required.
- Architecture, installation, and support of Red Hat or Oracle Linux operating systems.
- Maintenance and support of Exadata server systems.
- Interconnectivity with Windows servers for file, mail, and print sharing.
- Experience architecting and configuring Linux systems that utilize high availability RAID and SAN storage solutions.
- Automating administrative tasks and procedures using KSH, CSH or Perl scripts.
- Creation of virtual hosts and clients using products such as VMware EXSi and/or VMware EXSi administration experience.
- Administration and architecture of Apache, Tomcat, Weblogic and/or JBoss application servers.
- Security hardening and configuration management aligned with FISMA or DoD standards.
- Experience architecting and configuring Puppet infrastructure including unit test pipeline workflow.
- Experience configuring and reporting Puppet SCE security module (compliance admin).
- Experience with gitlab change control and infrastructure support.
- Experience with architecting and/or developing ansible server build automation playbooks.
- Red Hat RHCE or RHCT certification, or other Linux/Unix certification, is preferred.
- CISSP or similar security training/certification is preferred.
- Valid U.S. Driver’s License is required.
Work sponsorship is not available at this time. Third-party candidates will not be considered for this position.
Because we are a federal government contractor, we have special restrictions placed on us for hiring foreign nationals into certain key positions within the company. This particular position requires U.S. citizenship.
ACS Professional Staffing will provide equal employment opportunities to all applicants without regard to the applicant’s race, color, religion, sex, gender, genetic information, national origin, age, veteran status, disability status, or any other status protected by federal or state law. The company will provide reasonable accommodations to allow an applicant to participate in the hiring process if so requested.
If you have any questions about the job posting, please contact recruiting@acsprostaffing.com
If you have any questions about our Reasonable Accommodation Policy, please feel free to email hr@acsprostaffing.com
