System Administrator, Senior

Company: Booz Allen Hamilton
Location: Catonsville
Posted on: April 3, 2026

Job Description:

System Administrator, Senior The Opportunity: Your combination of people skills and system administrator expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting our client? As a System Administrator on our project, you’ll support the operation, maintenance, and design of information technology resources within a laboratory for High Performance Computing ( HPC ) technology and data analytics for a research organization. You will maintain responsibility for the installation of new equipment and operating systems to best suit the needs of research to be c ond ucted and the researchers requiring support. You’ll support the review of current infrastructure to provide an overview and prepare plans for improvement and enhancement that will increase efficiency and security within the network. You will maintain responsibility for cutting-edge computing systems and the evaluation of their use for research in furtherance of the mission. Your system administrator expertise will be vital as you identify problem areas and opportunities for improvement in a mission-critical network. You’ll help your team better understand the network by turning met rics into information and explaining their meaning. Join us. The world can’t wait. You Have: Experience configuring and managing Linux and Windows operating systems, including supporting day-to-say operations, installing operating system sof tware, troubleshooting, maintaining integrity of and configuring network components, and implementing operating systems enhancements Experience monitoring and maintaining systems, including compute nodes, storage, networking, and sof tware Experience optimizing system operations and resource utilization and performing system capacity analysis TS/SCI clearance with a polygraph Asso cia te's degree in an Information Technology field and 12 years of experience as a lead systems administrator, Bachelor's degree in an Information Technology field and 8 years of experience as a lead systems administrator, or 15 years of experience as a lead systems administrator in lieu of a degree Nice If You Have: Experience in shell scripting and programming in C or Python Experience with Simple Linux Utility for Resource Management ( SLURM ) Experience with system automation, provisioning, storage, or optimization tools such as Ansible, Warewolf, Lustre, or BeeGFS Experience with Unix Knowledge of performance monitoring tools such as Grafana or Pro met heus Knowledge of setting up and executing benchmarks in an HPC environment and analyzing results Knowledge of network engineering Clearance : Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information ; TS/SCI clearance with polygraph is required. Compensation At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $77,600.00 to $176,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees. This posting will close within 90 days from the Posting Date. Identity Statement As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud. Candidate AI Usage Policy AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on your own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited unless permission is explicitly provided . Work Model Our people-first culture prioritizes the benefits of collaboration, whether it occurs in person or virtually. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings. Remote : If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility. Hybrid : If this position is listed as hybrid, you will be expected to work from a Booz Allen facility frequently, in alignment with leadership expectations and the needs of the role. You may also be required to work from or visit a customer facility. Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.

Keywords: Booz Allen Hamilton, Wilmington , System Administrator, Senior, IT / Software / Systems , Catonsville, Delaware