Senior Linux Engineer

CACI International Inc; Chantilly (VA); Hybrid; USD 104,000 - 218,000; Full time

Job summary

CACI International Inc. is seeking a Senior Linux Engineer to design, implement, and maintain large-scale Linux infrastructures.

The role blends hands-on engineering with mentoring and cross-team collaboration in a hybrid environment with onsite requirements in Chantilly, VA. The position requires US citizenship, a DoD Secret clearance, and 12+ years of relevant experience (or a degree with 5 years substituted).

Qualifications

• US Citizenship required; Active DoD Secret clearance.
• 12+ years of relevant experience or substituted by degree with 5 years replaced.
• Security+ CE (or IAT Level II/III) plus RHCE or LPIC-3 certification.
• Hands-on Linux administration and cross-platform experience including Windows Server.

Responsibilities

• Design, implement, and manage complex Linux-based systems and infrastructure.
• Develop and maintain automation scripts and tools; mentor junior team members.
• Ensure cyber security best practices; perform capacity planning and performance tuning.
• Manage disaster recovery, incident response, and cross-team collaboration.
• Lead system upgrades, patches, and troubleshooting; ensure data integrity and security.

Skills

Linux system administration

Windows Server administration

Cyber security practices

Mentoring / team lead

Capacity planning

Education

Bachelor's Degree in applicable field

Tools

Security+ CE Certification

RHCE

LPIC-3

SE Linux / CentOS / AlmaLinux / Rocky Linux

VM environments

Job description

Job Title: Senior Linux Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

* * *

The Opportunity

CACI's EITaaS Program is a Department of the Air Force initiative, which includes the Air Force and Space Force. EITaaS will transform the Dept. of the Air Force IT services from an in-house, base-centric delivery model to an advanced enterprise service delivery model. CACI will provide an enhanced IT management system, IT storefront, enterprise help desk, local field services, and life cycle support for end-user devices.

CACI's innovative approach to enterprise technology infuses contemporary technologies with industry best practices to deliver commercial-style services that will improve customer experience and productivity for the Dept. of the Air Force's global workforce. CACI and its partners will equip Airmen and Guardians with state-of-the-art services and automated capabilities that enable access to the tools they need to perform their mission efficiently and effectively when they need it, where they need it.

This position is hybrid, with onsite work expected in Chantilly, VA.

Responsibilities

• Provide analysis, design, development, and integration of hardware, software, and all system level requirements and functional objectives to provide an integrated EIT solution.
• Develops integrated system test requirements, strategies, devices, and systems. Ensures highest level of Cyber Security while balancing user needs. Initiates (does not wait for others) and identifies key areas of improvement relating to anything Systems related.
• Install new software releases, system upgrades, evaluating and installing patches and resolve software related problems.
• Perform system backups and recovery.
• Maintain data files and monitors system configuration to ensure data integrity.
• Possesses and applies expertise across key tasks and high impact assignments.
• Plans and leads major assignments.
• Responsible for designing, implementing, and managing complex Linux-based systems and infrastructure.
• May mentor or task lead others.
• Design and implement large-scale Linux infrastructure solutions
• Manage and optimize existing Linux environments
• Develop and maintain automation scripts and tools
• Troubleshoot complex system and network issues
• Implement security best practices and ensure compliance
• Mentor junior team members and provide technical leadership
• Collaborate with other IT teams on cross-functional projects
• Evaluate and recommend new technologies and solutions
• Participate in capacity planning and performance tuning
• Manage disaster recovery and business continuity plans

Qualifications

Required:

• US Citizenship required.
• Active DoD Secret clearance
• 12+ Years of relevant experience (Bachelor's Degree in applicable field may be substituted for 5 years of experience).
• Security+ CE Certification (or other IAT Level II or III Certification) at a minimum; Red Hat Certified Engineer (RHCE), or Linux Professional Institute Certification (LPIC-3)
• Demonstrated experience with systems administration in Linux environments (RHCE equivalence) or Windows Server environments (MS Security Engineer/Solution Architect equivalence).
• Demonstrated hands-on experience installing, configuring, securing, integrating, upgrading and troubleshooting SE Linux/CentOS (prefer some hands-on experience with AlmaLinux or Rocky Linux too) - preferably in VM environments.

Desired

• Experience with installing/configuring/troubleshooting Security tools (i.e., Windows, Azure, Linux) beyond default settings meeting highest level government standards relating to data, applications, OS, networking, infrastructure, etc.
• Strong knowledge of enterprise Linux distributions (e.g., RHEL, CentOS, Ubuntu)
• Proficiency in shell scripting (Bash) and at least one programming language (e.g., Python, Perl)
• Experience with configuration management tools (e.g., Ansible, Puppet, Chef)
• Knowledge of virtualization and cloud technologies (e.g., Hyper-V, KVM, AWS, Azure)
• Understanding of networking protocols and services
• Familiarity with containerization and orchestration (e.g., Docker, Kubernetes)
• Experience with monitoring and logging systems
• Strong problem-solving and analytical skills

What You Can Expect

A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose - to ensure the safety of our nation.

An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.

Pay Range

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The Proposed Salary Range For This Position Is

$103,800 - $218,100

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.