Senior System and Infrastructure Support Engineer

The Senior System and Infrastructure Support Engineer administer, secures, and sustains the backend infrastructure supporting an Identity Governance and Administration (IGA) solution in a regulated federal IT environment. This senior technical role performs advanced Red Hat Enterprise Linux (RHEL) administration, including operating-system maintenance, patching, hardening, access control, service management, performance monitoring, log analysis, recovery activities, and configuration management.

The engineer partners with IGA application developers, infrastructure teams, and operations personnel to plan, test, implement, and validate infrastructure changes that enable new functionality, integrations, releases, and operational improvements. The role maintains web and application-server components, network connectivity, and system configurations while applying ITIL-aligned incident, problem, and change-management practices through ServiceNow or a comparable IT service management platform.

Key Responsibilities

• Administer and sustain RHEL servers supporting IGA platform operations, including installation, configuration, package and repository management, systemd service management, user and group administration, storage and file-system management, process troubleshooting, performance analysis, and log review.
• Execute secure operating-system patching and vulnerability-remediation activities through documented maintenance procedures, including dependency assessment, maintenance scheduling, backup and rollback planning, post-change validation, and retention of operational evidence.
• Implement and maintain Linux security controls, including file permissions, privilege management, secure remote administration, service hardening, audit logging, certificate handling, firewall configuration, and Security-Enhanced Linux policy administration.
• Develop and maintain Bash scripts that automate health checks, log collection, file maintenance, service validation, scheduled tasks, configuration verification, deployment support, and other repeatable infrastructure-administration activities.
• Administer and troubleshoot Apache Tomcat or comparable Java web and application-server technologies, including service startup and shutdown, application deployment, connector configuration, logging, JVM configuration, access controls, certificate management, and performance monitoring.
• Diagnose infrastructure dependencies affecting system availability and IGA operations, including TCP/IP connectivity, DNS, routing, ports, firewalls, load balancing, Transport Layer Security, proxy connectivity, directory connectivity, authentication, scheduled jobs, integrations, and provisioning workflows.
• Partner with application developers to translate functional requirements into infrastructure changes, evaluate technical dependencies, prepare lower-environment testing, support release implementation, and validate performance and stability following deployment.
• Manage infrastructure incidents, service requests, change records, implementation tasks, technical work notes, configuration information, and operational evidence using ServiceNow or a comparable IT service management platform.
• Support ITIL-aligned incident, problem, and change-management processes, including impact assessment, root-cause support, implementation sequencing, approval coordination, outage communication, rollback procedures, and post-implementation review.
• Create and maintain technical runbooks, build documentation, support procedures, recovery instructions, configuration baselines, troubleshooting guides, and knowledge articles suitable for operations teams and audit review.

Required Qualifications

• High school diploma or equivalent and at least 7 years of progressive system administration, infrastructure support, or related enterprise IT operations experience.
• At least 3 years of hands-on experience administering Red Hat Enterprise Linux in an enterprise, federal, or other highly regulated environment.
• Advanced experience administering Linux operating systems, including server configuration, patching, package management, system services, user and group management, file systems, storage, process management, log analysis, performance troubleshooting, and recovery procedures.
• Demonstrated experience implementing Linux security controls, including access permissions, privileged access, secure remote administration, service hardening, audit logging, certificate management, firewall configuration, and Security-Enhanced Linux administration.
• Strong Bash scripting experience to automate system-health checks, operational data collection, service validation, file maintenance, scheduled tasks, configuration verification, and other repeatable administrative activities.
• Experience administering and troubleshooting Apache Tomcat or comparable Java web or application-server technology, including application deployment, logging, JVM configuration, connector configuration, certificates, access controls, and performance monitoring.
• Working knowledge of enterprise network concepts, including TCP/IP, DNS, routing, firewalls, ports, load balancing, TLS, proxy connectivity, and infrastructure dependency troubleshooting.
• Demonstrated experience using ServiceNow or a comparable IT service management platform to manage incidents, service requests, changes, implementation tasks, work notes, configuration information, and operational documentation.
• U.S. citizenship and ability to obtain and maintain a Public Trust background investigation.

Preferred Qualifications

• Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification.
• ITIL 4 Foundation certification or demonstrated experience executing formal incident, problem, and change-management processes.
• Experience supporting identity and access management or identity-governance platform infrastructure, including directory connectivity, authentication services, provisioning workflows, integrations, and scheduled jobs.
• Certification or hands-on experience with Linux automation, cloud infrastructure, containers, enterprise monitoring, or web and application-server technologies.

Compensation Ranges

Compensation ranges for ASM Research positions vary depending on multiple factors; including but not limited to, location, skill set, level of education, certifications, client requirements, contract-specific affordability, government clearance and investigation level, and years of experience. The compensation displayed for this role is a general guideline based on these factors and is unique to each role. Monetary compensation is one component of ASM's overall compensation and benefits package for employees.

EEO Requirements

It is the policy of ASM that an individual's race, color, religion, sex, disability, age, sexual orientation or national origin are not and will not be considered in any personnel or management decisions. We affirm our commitment to these fundamental policies.

All recruiting, hiring, training, and promoting for all job classifications is done without regard to race, color, religion, sex, disability, or age. All decisions on employment are made to abide by the principle of equal employment.

Physical Requirements

The physical requirements described in "Knowledge, Skills and Abilities" above are representative of those which must be met by an employee to successfully perform the primary functions of this job. (For example, "light office duties' or "lifting up to 50 pounds" or "some travel" required.) Reasonable accommodations may be made to enable individuals with qualifying disabilities, who are otherwise qualified, to perform the primary functions.

Disclaimer

The preceding job description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications required of employees assigned to this job.