Senior Red Hat Linux Administrator

Job Description

Salary:

Job Description Narrative

Custom Software Systems (Inc.) is seeking an experienced Senior Red Hat Linux Administrator consultant. The Senior Red Hat Linux Administrator will manage and optimize the Red Hat Enterprise Linux (RHEL) environments. The candidate will be responsible for ensuring system stability, security, and performance while supporting a range of enterprise applications. This role requires advanced expertise in Linux administration, automation, troubleshooting, and security best practices.Responsibilities

Installing, configuring, and maintaining Red Hat Enterprise Linux (RHEL) servers across development, testing, and production environments.

Performing system upgrades, patch management, and security hardening to ensure compliance with industry standards.

Monitor system performance and troubleshoot issues to minimize downtime and optimize efficiency.

Implementing automation scripts using Ansible, Bash, or Python to streamline system administration tasks.

Configuring and maintaining Red Hat Satellite, Identity Management (IdM), and other Red Hat Enterprise Linux (RHEL) ecosystem tools.

Collaborating with security teams to ensure systems are protected against vulnerabilities and comply with security policies.

Maintaining and optimizing storage, backup, and disaster recovery solutions.

Supporting application teams by providing guidance on best practices for Linux-based deployments.

Maintaining documentation for system configurations, procedures, and troubleshooting guides.

Participating in on-call support and incident resolution activities as required.

Set up Network File Server (NFS) and mount points.

Configuring Chron jobs for both systems and applications.Required Qualifications

Red Hat Certified Systems Administrator. Certification must be issued by Red Hat and include the resources valid certification number.Education

Bachelors or postgraduate degree in engineering, computer science, or related field.Clearance

N/ACitizenship

US Citizen, Green cardKnowledge, Skills & Abilities

Working in a complex networked system environment with strong networking.

Administering Unix (AIX) IBM pSeries systems.

Administering systems, including, but not limited to:

o Oracle WebLogic Servers

o Oracle Database Servers

o Progress 4GL/Database Servers/OpenEdge

o Apache Web Servers

o vSphere hosted RHEL Servers

o Rubrik backup systems

o Oracle Database backups

o PeopleSoft

o Mobius

o Elastic Search

o Oracle OBI

o CVS (Concurrent Version System)

Red Hat performance tuning.

Load balancing, partitioning, back-up/recovery, and disaster recovery.

Working in an environment that requires 24/7 system availability.

Application development.

Red Hat Support.

Electronic Imaging Support.

Ability to work in a team environment.

Communicate effectively with internal and external personnel.

Demonstrate leadership skills.

Interface with users and helpdesk for day-to-day support.

Provide Backup/recovery, and networking methodologies.

Troubleshoot at the Operating System (OS), database, and application levels.

Knowledge of Red Hat administration, including configuration and tuning. Desired Qualifications

Ten (10) or more years of experience as a Red Hat system administrator.

Ten (10) or more years of experience administering Unix (AIX) IBM pSeries systems.

Fifteen (15) or more years of experience in the Information Technology (IT) field.Compensation & Benefits[1][2]

General Benefits: Custom Software Systems, Inc. offers our employees a competitive benefits package that may include:

Health insurance plans

Health Savings Account (HSA)

Dental

Vision

Long-term disability

[1] Compensation range must be coordinated with and approved by the CSS Chief Operating Officer (COO).

[2] Compensation & Benefits information is required for all Maryland Employers effective October 1, 2024.