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# Senior Solaris Engineer

- **Company:** Mantech International Corporation
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Application Performance Management, Systems Engineering, Automation of Tests, Unix, Linux, File Systems, Microsoft Project, Oracle (Applications), Performance Tuning, Solaris (Operating System), AI Coding Agents, Database Replication
- **Published:** November 11, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9304853/senior-solaris-engineer

## About the Role

MANTECH seeks a motivated, career and customer-oriented Senior Solaris Engineer to join our team in Chantilly, VA., * Bachelor's Degree or equivalent of 6 years of relevant working experience.

 * 5+ years of Unix operating system experience, one year specifically in Solaris 8 or later

 * 5+ years Linux operating system experience including: system internals file system structures, design, and performance tuning at an enterprise level backup recovery testing methodologies storage data replication, and DISA system hardening guidelines

 * General knowledge of ITIL and the use of MS Project

 * DoD Cyber Certification equivalent to IAT-Level II

Preferred Qualifications:

 * 10+ years of Unix operating system experience

 * 8+ years Linux operating system experience

 * 2+ years of experience implementing Oracle Label Security

 * Desired Oracle Certified Professional (OCP) credentials as an Oracle Solaris System Engineer

 * ITIL Foundations Certification

 * Demonstrated expertise in automation, orchestration, and AI-assisted software development practices

 * Expertise applying automation to building, hardening and deploying Solaris/Linux master imaging

 * Experience using Agile task tracking tools to manage, execute, and report against integrated schedules.

 * Experience developing automated test frameworks

 * General understanding of System Engineering processes, lifecycle standards (IEEE/ISO/IEC 15288-2023), Risk Management Frameworks, and NIST 800-53

 * DoD Cyber Certification equivalent to IAT-Level III

Clearance Requirements:

 * An active Top Secret security clearance with SCI eligibility

 * Willingness to take CI polygraph

Physical Requirements:

 * Must be able to remain in a stationary position 50%.

 * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

 * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

## Description

* Building and hardening Linux master OS images and deploying for use by other stakeholders

 * Building and hardening Solaris master OS images and deploying for use by other stakeholders

 * Monitoring and baselines OS and application performance hosted on Linux and Solaris systems

 * General system administration for Linux and Solaris OSes, including account management, creation and automation of SOPs

 * Design system internals file system structures, backup and recovery methodologies, and storage data replication

 * Work with system administrators to perform on-going maintenance

 * Ensure compliance with all regulations, optimizing system performance, and supporting future planning