We have an exciting opening for an experienced Sr. Systems Administrator-CNS with active TS/SCI Polygraph. You must have the TS/SCI Polygraph up front. No sponsorship is available.

You will be responsible for maintaining system administration support activities for a large complex network environment with geographically distributed systems. The position entails supporting solutions for system engineering requests that continues to meet operational needs as well as upgrading and maintaining capabilities; must be comfortable working in a fast-paced environment with multiple air-gapped systems which have individual domains, supporting infrastructure, and maintaining a complex IT environment with multiple logins and associated supporting storage and network infrastructure; requires an energetic, focused, and driven individual who can adapt well to a changing environment; you will possess strong system administration skills and troubleshooting skills or adapt quickly and complete various system administration network-centric undertakings.

Primary Roles and Responsibilities:

You will be responsible for installing and administrating systems, applications, and processes, and for ensuring that all issues are identified and resolved in a timely manner; ensuring server and desktop configurations are optimized and running continuously and efficiently; perform security management and application performance optimization functions. Additional responsibilities may include:

Administration/sustainment of a system that provides a web-based application for storing, sharing, and distributing information.Creating and maintaining complex server enclaves, including analyzing system scanning reports, patching, cert renewals, vulnerability management assessments, and active directory configurations.Identifying and correcting hardware and software issues.Responding to system administration, operations, and maintenance problems and developing re-work solutions.Creating and maintaining documentation of complex server/network environments to ensure that clear, concise and accurate information is readily available for incident resolution.Communicating with users and external support personnel regarding system outages and upgrades and conferring with upper management regarding recommended resolution options.

Security Clearance Requirement:

All candidates must possess an active TS/SCI with polygraph security clearance *up front* to be considered for this role.

Required Qualifications:

Bachelor’s degree in system engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related technical field and at least twelve (8) to (12) years of relevant experience.Must have ​experience as a systems administrator providing direct support to end users and technical staff (Developers, Testers, etc.).Must be proficient with Windows Server 2012R2, 2016, 2019, and Active Directory.Must have experience with Linux and Microsoft-based servers and workstations.Must have experience with Windows 2019.Must have experience with OS and Application Hardening to include DISA, Best Practices, and High Assurance environments.Must have experience with software/hardware deployment, patches, and operating systems, basic system backup and restore functions.Must have experience with and/or be familiar with SALT, Ansible, Splunk, Puppet, SolarWinds, Nessus.Must have experience with and/or have knowledge of Red Hat 7 and 8, and VMWare.Must have experience with Apache Tomcat, IIS, and/or SQL server database experience.Must have experience documenting and providing information for security accreditation and certification. Understanding of advanced security protocols and standards. Experience with Network Security Technologies (e.g. Multiple Domain, PKI, SSP, and Vulnerability Assessment).Must have experience with High Assurance platforms and application integration testing methods.Must have experience with both Client and Server virtualization environments.Must be able to lift up to 50 lbs.Must have experience with installation, configuration, troubleshooting, reimaging hardware.Must have experience with disk arrays, PowerShell and PowerCLI, KVMs,Must have knowledge of PKI systems which uses HSMs to validate key and NTP for synchronization.Must have experience optimizing system operations.Must have a solid understanding of information security principles and practices.Must have experience with or familiarity with software and security architectures.Must have experience or familiarity with the following systems: Windows/Linux operating systems, VMware, and Networking: Switches, Routers, LANs, & cabling.Must be able to support occasional day or short duration travel, if needed.

Preferred Qualifications:

Proficiency with SQL Server desired.

CSSKEY

CONMD

careers.leidos.com/CONMD

Original Posting Date:2024-10-17

While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.