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Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, mission-oriented Linux Systems Administrator, in the Chantilly, VA area, with strong Customer relationships.

The Principal Linux Systems Administrator is responsible for providing a full range of IT support services & expertise to customer activities focusing on Linux administration & management, client & server environment services & virtual environment services. This position is also looking to implement & take advantage of JIRA with Confluence experience. Primarily, you will demonstrate a proficient knowledge & understanding of client & server operations & maintenance with UNIX/Linux, virtual environments, backup, storage & recovery, & development of customer requirements. Secondly, as a JIRA administrator you will provide configuration & administrative support to a virtual based Atlassian tool suite including JIRA, Confluence, & other 3rd party add-ons. Next, you will assist & gain experience with ServiceNow running on Linux integrated into a Windows domain. Lastly, you will provide administration of Linux systems integration into Windows Security Domains using LDAP for centralized user accounts & security group access.

Responsibilities include, but not limited to:

• Experience administering & managing Linux, OS & software, in physical & virtual server environments (including RedHat & CentOS)

• Perform as a Principal Linux Systems Administrator (Tier 3) supporting multiple networks (including network services)

• Provide Tier 3 engineering problem identification & resolution

• Installation, configuration, hardening, & maintenance of Linux operating systems & servers

• Analyze & resolve hardware & software problems associated with Linux operating systems & applications.

• Monitor network & Linux system performance; advise on compliance with security standards to include Linux IAVAs, vulnerabilities, updates, & remediation

• Experience with shell scripting languages, such as Linux Bash

• Experience with Database Administration

• Familiarity with Java Virtual Machine (JVM) tuning

• Plan, schedule, implement, & communicate JIRA & plug-in upgrades in accordance with requirements, & established policies & procedures

• Architect, administer, and troubleshoot JIRA deployments & projects; focus on providing platform for Housing units to administer, track & report on department-wide projects & issues

• Work independently with stakeholders & clients to design & deliver JIRA workflows to meet the stated & unstated business requirements

• Analyze current JIRA configurations & migrate to new instances; code, test, & debug new software/applications or make new enhancements to existing software/ applications & provide solutions using JIRA

• Ability to create complex JIRA workflows, screen, permission, & notification schemes, & to provide/configure JIRA for manual processes

• Understanding of JIRA APIs & webhooks

• Gather requirements for business processes, & determine ways to optimize/improve JIRA/Confluence/Bitbucket; build & configure

• Implement custom XML based JIRA gadgets

• Generate documentation on workflows & processes implemented in JIRA to support runbooks

• Working knowledge with ITIL Operations Management & Service Management

Required Qualifications:

• Bachelor’s Degree and 7 or more years’ experience, or high school diploma/GED and 10 or more years of relevant systems admin experience

• At least 1 year of experience with Jira

• Security+ certification (active)

• Occasional travel, 25% CONUS

Security Clearance Requirements:

Must possess an active TS/SCI with Polygraph

Physical Requirements:

• Must be able to be in a stationary position more than 50% of the time

• Must be able to communicate, converse, & exchange information with peers & senior personnel

• Constantly operates a computer & other office productivity machinery, such as a computer

• Constantly positions self to maintain computers in the lab, including under the desks & in the server closet

• Frequently moves Audio/Visual or Computer equipment weighing up to 50 pounds across & around a business campus or large facility

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For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

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