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# Systems Administrator - Sr

- **Company:** Nalley Consulting
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Apache Ant, Apache HTTP Server, Apache Tomcat, Cloud Computing, Cyber Security, Databases, Linux, File Systems, Federal Information Processing Standards (FIPS), Hibernate (Java), Apache Hypertext Transfer Protocol Server, Java Persistence API, Java Web Services, Spring Framework, Java API for RESTful Web Services (JAX-RS), PostgreSQL, MongoDB, Oracle (Applications), Red Hat Enterprise Linux, Apache Solr, SQL Databases, Internet Protocol Telephony, Selinux, Legacy Systems, Oracledb
- **Published:** August 19, 2026
- **Apply:** https://www.careerjet.com/jobad/us302a199623f59c7c58f942a5ff6f7604

## About the Role

Required clearance and polygraph: TS/SCI with willingness to take CI poly. Candidates with polygraph conducted within the past seven years will be highly prioritized.
Required experience and education: Master's degree and 8+ years of experience OR bachelor's degree and 10+ years of experience
Description: Position supports sustainment of two critical operating systems on JWICs. Ideal candidate will have some Oracle experience to assist in legacy applications.
Requirements

 * Mandatory: Security+ certification
 * Highly Desired: Proficient cloud computing experience, proficient digital security experience, SQL, * Principal technologies: Java, Java Persistence API (JPA), Java Web Services (JAX-RS), Java Cryptography Extension (JCE), Hibernate, Spring, JavaScript, Apache Ant, Apache HTTPD, and Apache Tomcat
 * Databases: Apache Solr, PostgreSQL, MongoDB, and OracleDB
 * Platforms: Red Hat Enterprise Linux 7, 8, and 9, with an understanding of FIPS mode, SELinux, firewall daemon (firewalld), file access policy daemon (fapolicyd), and basic system administration
 * Must be able to obtain a privileged user access account (PUA).

## Description

MANTECH seeks a motivated, career and customer-oriented Systems Administrator to support our Department of War contract out of Alexandria, VA to support the administration, mainten…

 + 7 days ago, MANTECH seeks a motivated, career and customer-oriented VoIP Systems Engineer to join our team in McLean, VA. In this role, you'll combine expertise in telephony systems, Linux ser…
 + 19 days ago


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