DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, efficient, and cost-effective solutions that drive measurable results. Learn more at www.dminc.com

DMI, LLC is seeking a Linux Administrator to join our team.

As a Mid-Level Linux/Platform Engineer, you will play a key role in designing, implementing, and maintaining Linux-based systems for a Department of Defense (DoD) project. Combining your knowledge of RHEL, cloud platforms, Oracle on Linux, and DevSecOps best practices, you will ensure our systems are stable, secure, and performant. Your responsibilities will include end-to-end management of our Linux environment and collaboration with cross-functional teams to support mission-critical applications.

Responsibilities

Platform Engineering & System Administration

• Design, deploy, and maintain Linux-based environments with a focus on Red Hat Enterprise Linux (RHEL), ensuring high availability, scalability, and security.
• Integrate Oracle products on Linux platforms, including the configuration and tuning of Oracle databases and middleware solutions.
• Troubleshoot, diagnose, and remediate operating system, application, and network issues in Linux environments, including those with limited or previously undocumented solutions.
• Implement DevSecOps principles and toolchains (CI/CD pipelines, automation, and security scanning) to streamline application development and deployment.

Security & Compliance

• Meet DoD 8570 IAT Level III requirements, including ongoing compliance with security policies, regulations, and best practices (e.g., STIGs).
• Oversee system patching, security monitoring, and vulnerability remediation to protect classified and sensitive data.
• Collaborate with security teams and stakeholders to ensure the environment meets or exceeds accreditation standards.

Cloud Integration & Virtualization

• Manage cloud-based Linux deployments, leveraging cloud-specific services and tools to maximize performance and reliability.
• Plan and perform migrations of on-premise workloads to cloud environments, ensuring minimal downtime and optimal resource utilization.
• Oversee virtualized environments (e.g., VMware or cloud-based virtualization) to support application deployment, testing, and production.

Collaboration & Process Improvement

• Coordinate with cross-functional teams—such as engineering, testing, security, and project management—to ensure alignment of technical objectives and deliverables.
• Document standard operating procedures, architectural designs, and troubleshooting steps to facilitate knowledge sharing and operational consistency.
• Provide guidance and mentorship to junior administrators and engineers, promoting best practices in Linux administration, DevSecOps, and cloud computing.

Monitoring & Performance Tuning

• Implement proactive monitoring solutions to identify system bottlenecks and potential failures, ensuring uninterrupted operations.
• Analyze system logs, performance metrics, and other diagnostic data to optimize resource utilization and reduce downtime.
• Conduct regular capacity planning, recommending infrastructure enhancements to support future growth.

Education and Years of Experience:  

• Education: Bachelor’s degree in Computer Science, Information Systems, or a related technical field (or equivalent experience).
• Experience:
• 5+ years of professional experience in Linux system administration or systems engineering.
• Proven track record of administering RHEL environments, including patching, configuration, and performance tuning.
• Hands-on experience with Oracle on Linux (e.g., database configuration, troubleshooting, and performance optimization).
• Working knowledge of DevSecOps toolchains (e.g., GitLab, Harness, Ansible, or similar).
• Experience with virtualization platforms (e.g., VMware) or cloud environments (AWS, Azure, or similar).
• Certifications:
• DoD 8570 IAT Level III compliance (e.g., CASP+, CISSP).
• RHEL Certification (e.g., Red Hat Certified Engineer (RHCE) or Red Hat Certified System Administrator (RHCSA)).
• Security Clearance: Must have and be able to maintain a DoD Secret clearance.
• Skills & Attributes:
• Strong troubleshooting, analytical, and problem-solving skills.
• Excellent written and verbal communication skills, with the ability to convey complex technical details to both technical and non-technical audiences.
• Team-oriented, with a commitment to collaboration and knowledge sharing.

Preferred/Desired

• Additional cloud-related certifications (e.g., AWS SysOps, Microsoft Azure Administrator).
• Experience with containerization (Docker, Kubernetes) and Infrastructure as Code (Terraform).
• Familiarity with scripting and automation using Bash, Python, or similar languages.
• Exposure to Solaris-to-Linux migrations or other cross-platform system migrations.

Physical Requirements

• No specific physical requirements are needed for this position.

Work Environment & Location

• Position may be on-site, remote, or hybrid depending on project requirements.
• Candidate must be available to support mission-critical systems and occasional after-hours maintenance windows.

 #LI-SM3

DMI is a diverse, prosperous, and rewarding place to work. Being part of the DMI family means we care about your wellbeing. As such, we offer a variety of perks and benefits that help meet various interests and needs, while still having the opportunity to work directly with a number of our award-winning, Fortune 1000 clients. The following categories make up your DMI wellbeing:

• Convenience/Concierge - Virtual visits through health insurance, pet insurance, commuter benefits, discount tickets for movies, travel, and many other items to provide convenience.
• Development – Annual performance management, continuing education, and tuition assistance, internal job opportunities along with career enrichment and advancement to help each employee with their professional and personal development.
• Financial – Generous 401k matches both pre-tax and post-tax (ROTH) contributions along with financial wellness education, EAP, Life Insurance and Disability help provide financial stability for each DMI employee.
• Recognition – Great achievements do not go unnoticed by DMI through Annual Awards ceremony, service anniversaries, peer-to-peer acknowledgment, employee referral bonuses.
• Wellness – Healthcare benefits, Wellness programs, Flu Shots, Biometric screenings, and several other wellness options.

Employees are valued for their talents and contributions. We all take pride in helping our customers achieve their goals, which in turn contributes to the overall success of the company.

***************** No Agencies Please *****************

Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information. US citizenship may be required for some positions.