Senior Enterprise Systems Admin - Cybersecurity & Uptime

Booz Allen Hamilton; Washington (District of Columbia); On-site; USD 78,000 - 176,000; Full time

Benefits offered by this job

Health benefits

Retirement benefits

Paid leave

Professional development

Tuition assistance

Work-life programs

Dep. care

Job summary

Booz Allen Hamilton seeks an experienced system administrator to lead enterprise-level IT infrastructure for a mission-critical customer. You will manage Windows-based systems, perform Tier I/II support, monitor performance, apply patches, and document configurations and procedures.

You will collaborate across teams to modernize the network, strengthen cybersecurity posture, and provide insights from metrics.

Qualifications

• Experience in system and network administration for enterprise environments.
• Strong Windows I/II support, permissions, and incident management.
• Experience with databases such as Oracle, PostgreSQL, MongoDB.
• Background with Java stack and Linux system administration.

Responsibilities

• Manage and maintain mission-critical IT infrastructure and multi-domain environments.
• Update, patch, monitor, and optimize system performance and security.
• Provide Tier I/II support and guidance to the customer and team.

Skills

System administration

Network administration

Windows support

Tiers I/II support

Monitoring and performance management

Documentation and reporting

Security posture improvement

Education

Bachelor's degree in Systems Administration

Master’s degree in Systems Administration

Tools

Oracle

PostgreSQL

MongoDB

Java/J2EE stack

Apache Tomcat

Red Hat Enterprise Linux

JFrog/Ant/AJP stack

Job description

Booz Allen Hamilton seeks an experienced system administrator to lead enterprise-level IT infrastructure for a mission-critical customer. You will manage Windows-based systems, perform Tier I/II support, monitor performance, apply patches, and document configurations and procedures.

You will collaborate across teams to modernize the network, strengthen cybersecurity posture, and provide insights from metrics.