Systems Engineer Level III Columbia, MD TS/SCI and Full Scope Polygraph

Snsone; Columbia (MD); On-site; USD 150,000 - 200,000; Full time

Job summary

Snsone is seeking a highly skilled Systems Engineer III to support a mission-critical environment in Columbia, MD. The role involves providing senior-level systems engineering and infrastructure support within a complex enterprise environment.

Key responsibilities include configuring operating systems, managing client and server environments, and leading systems engineering initiatives. Candidates should have extensive experience in Linux administration, VMware virtualization, and a TS/SCI security clearance.

Qualifications

• Active TS/SCI with Current Full Scope Polygraph.
• IAT Level II Certification required.
• 20 years of experience as a Systems Engineer.
• Demonstrated experience planning and leading Systems Engineering efforts.

Responsibilities

• Configure and troubleshoot Linux and Windows operating systems.
• Manage and maintain client, server, and network environments.
• Lead systems engineering initiatives and support operational sustainment.
• Ensure compliance with security requirements.

Skills

Linux administration

VMware virtualization

Ansible automation

Systems integration

Troubleshooting

Infrastructure sustainment

Education

Bachelor's degree in Systems Engineering or related discipline

Tools

Splunk

NetApp storage

Job description

Systems Engineer III

Location: Columbia, MD
Security Clearance: TS/SCI with Full Scope Polygraph Required

Position Overview

SNS One is seeking a highly skilled Systems Engineer III to support a mission‑critical environment in Columbia, MD. The selected candidate will provide senior‑level systems engineering and infrastructure support within a complex enterprise environment. This role requires strong expertise in Linux administration, VMware virtualization, Ansible automation, systems integration, troubleshooting, and infrastructure sustainment.

The ideal candidate will possess extensive experience supporting enterprise systems, leading engineering efforts, optimizing infrastructure performance, and ensuring compliance with government security requirements.

Responsibilities

• Configure, administer, and troubleshoot Linux (Red Hat) and Windows operating systems, including software installation, system maintenance, network configuration, and performance enhancements.
• Provide implementation, troubleshooting, and maintenance support for enterprise IT systems and infrastructure.
• Manage and maintain client, server, storage, network, and mobile device environments, including day‑to‑day operations, monitoring, and issue resolution.
• Support help desk operations, dispatch systems, and hardware troubleshooting through resolution.
• Analyze and resolve complex issues involving server hardware, applications, software integration, and system performance.
• Optimize system operations, resource utilization, capacity planning, and overall infrastructure reliability.
• Lead and support systems engineering initiatives, including planning, design, implementation, and operational sustainment.
• Support and maintain NetApp storage environments.
• Ensure compliance with STE/STN requirements and support mitigation activities.
• Analyze user requirements, system architectures, and operational concepts to develop system requirements and engineering solutions.
• Develop and maintain systems engineering documentation, including requirements, specifications, interface control documents, test plans, and engineering plans.
• Participate in system integration, testing, configuration management, and risk management activities.
• Interface with government stakeholders, program personnel, and senior leadership regarding technical issues and project execution.
• Provide technical leadership and guidance throughout the system lifecycle.

Required Qualifications

• Active TS/SCI with Current Full Scope Polygraph
• IAT Level II Certification
• Bachelor's degree in Systems Engineering, Computer Science, Information Systems, Engineering, or related discipline
  • Five (5) years of additional Systems Engineering experience may be substituted for a bachelor's degree
• Twenty (20) years of experience as a Systems Engineer supporting programs of similar scope, type, and complexity
• Demonstrated experience planning and leading Systems Engineering efforts

Required Technical Skills

VMware & Virtualization

• Extensive VMware administration, virtualization, and infrastructure support experience
• Experience managing enterprise virtualized environments

Automation & Configuration Management

• Hands‑on experience with Ansible automation and configuration management
• Experience developing and maintaining automated operational processes
• Scripting and automation experience

Linux Administration

• Strong Linux administration experience with emphasis on Red Hat Enterprise Linux (RHEL)
• Advanced troubleshooting and performance tuning in Linux environments

Enterprise Technologies

• Splunk or similar enterprise monitoring and analytics platforms
• Systems integration and enterprise infrastructure support
• Security compliance and mitigation activities

Work Schedule

• At least one late shift per week (until 6:00 PM)
• Patch and maintenance activities may require occasional evening support with flexible scheduling adjustments

Salary Range

$150,000 - $200,000 annually

Compensation is commensurate with experience, technical skill set, educational qualifications, and security clearance level.

Clearance Requirement

TS/SCI with Full Scope Polygraph is required for consideration.

At SNS One, Inc., we are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants and teammates without regard to race, color, religion, sex, pregnancy (including childbirth, lactation and related medical conditions), national origin, age, physical and mental disability, marital status, sexual orientation, gender identity, gender expression, genetic information (including characteristics and testing), military and veteran status, and any other characteristic protected by applicable law. SNS One, Inc. believes that diversity and inclusion among our teammates is critical to our success as a company, and we seek to recruit, develop and retain the most talented people from a diverse candidate pool.