Senior Linux Engineer

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

Job summary

CA CI International Inc. is seeking a Senior Linux Engineer to design, deploy, and manage enterprise Linux environments within the EITaaS program for the Dept. of the Air Force. The role emphasizes security, automation, and scalable infrastructure, with hybrid onsite work in Chantilly, VA.

You will lead architecture decisions, implement patches, and mentor teammates while collaborating across IT groups to deliver reliable services for a global workforce.

Qualifications

• US Citizenship required.
• Active DoD Secret clearance.
• 12+ years of relevant experience (Bachelor’s degree may substitute for 5 years).
• Security+ CE or IAT Level II/III certification preferred; RHCE or LPIC-3 or equivalent.
• Experience with SE Linux/CentOS; AlmaLinux/Rocky Linux a plus.

Responsibilities

• Design, implement, and manage complex Linux-based systems and infrastructure.
• Develop automation scripts and tools to streamline operations.
• Perform system backups, recovery, and maintenance tasks.
• Implement security best practices and ensure compliance with gov't standards.
• Mentor junior team members and lead technical initiatives.

Skills

Linux administration

Shell scripting (Bash)

Python

Ansible

Kubernetes

Docker

Cloud knowledge (AWS/Azure)

Security best practices

Education

Bachelor's Degree in applicable field

Tools

RHCE or equivalent

RHEL/CentOS/Linux distributions

Ansible

Puppet/Chef

Job description

Job Title: Senior Linux EngineerJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: SecretEmployee Type: RegularPercentage 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 solutionsManage and optimize existing Linux environmentsDevelop and maintain automation scripts and toolsTroubleshoot complex system and network issuesImplement security best practices and ensure complianceMentor junior team members and provide technical leadershipCollaborate with other IT teams on cross-functional projectsEvaluate and recommend new technologies and solutionsParticipate in capacity planning and performance tuningManage disaster recovery and business continuity plansQualifications:Required:US Citizenship required.Active DoD Secret clearance12+ 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 servicesFamiliarity with containerization and orchestration (e.g., Docker, Kubernetes)Experience with monitoring and logging systemsStrong 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 - $218,100CACI 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.