Security Engineer (Linux Systems Engineer)

Overview
Navy Federal Credit Union currently does not provide sponsorship for this role. Applicants must be authorized to work in the United States without the need for current or future sponsorship.
At Navy Federal, we are passionate about our members--they are our mission. We're looking for a talented, experienced systems engineer professional to join our growing Advanced Cyber Initiatives team as a cybersecurity engineer with a job role in Linux systems engineering.
The Advanced Cyber Initiatives is looking for a driven professional to help advance the program's strategic vision. You will also have the opportunity to work closely with the Platform Engineering manager and lead the collaboration with Information Security teams for deployment & maintenance of cybersecurity enterprise applications.
Responsibilities

• Support NFCU in the maintenance of IT and enterprise class security applications and systems
• Troubleshooting Linux and/or Windows servers operating systems and predominately the enterprise applications running on those servers
• Deploying, optimizing, and maintaining enterprise security applications, on prem, SaaS, and IaaS
• Remediate vulnerabilities on Windows and/or Linux systems, ensure the stability and sustainability of supported platforms by monitoring, maintaining, patching, and administering all aspects of those systems
• Deploying and configuring SaaS enterprise applications
• Deploying AI, Agentic solutions, and ML/LLM's solutions to handle modern security threats
• Contribute to and maintain internal engineering documentation (e.g., tool documentation, lessons learned, procedures, status updates, etc.)
• Renewing and updating TLS certificates on appliances and enterprise applications
• Responding to audit and enterprise hardening requests
• Updating stories and subtasks work in flight
• Update/speak in Daily Operations briefings
• Daily ticket queue monitoring, for incidents and work ingestion and assigning as required
• Responsible for quarterly access reviews
• On call and after-hours rotation
• Perform other duties as assigned

Qualifications

• Bachelor's Degree in Computer Science, Information Technology, Engineering, or related discipline, or equivalent combination of education and experience.
• Extensive hands on experience of automating/scripting of server configurations/deployments/etc
• Extensive hands on experience patching and upgrading Linux and Windows based operating systems, packages, and applications
• Extensive hands on experience with enterprise high security systems engineering related or similar role required (Understanding of enterprise best practices for security and hardening with a focus on PCI-DSS/NCUA ideal)
• Experience with AI, Agentic solutions, and ML/LLM's in practice and/or deployment of technology.
• Experience scripting in one of the following: Ansible, Python, Bash, PowerShell, Ruby, etc to automate routine tasks
• Experience & thorough understanding of SSO/SAML/OAUTH integration of enterprise applications
• Strong understanding and ability to troubleshoot various common Linux operating systems (Centos, Red hat, Ubuntu, and/or Cisco derivative OS's) OR Strong understanding and ability to troubleshoot various Windows server operating systems
• Experience working in environments with infrastructure management processes such as change management, problem management, configuration management and project management
• Hands on Experience in Agile specifically Kanban workflow.
• Experience using/integrating tools with SIEM's
• Experience with large enterprise processes and working a siloed environment where tickets/coordination/detailed change management and control processes are required
• Knowledge of core network, firewall, routing, switching, load balancing, and proxy principles and troubleshooting related issues from a server deployment/maintenance perspective

Desired Qualifications

• Experience with Cybersecurity applications
• Linux based Java/Tomcat COTS web applications in a clustered environment
• Windows .net based IIS COTS applications in a clustered environment
• Physical or Virtual appliances with limited linux based OS CLI interfaces
• Ability to read/understand a packet capture
• Experience using Jira/Confluence

Additional Information
Hours:

• Monday - Friday, Hours are flexible within core office hours of 7:00AM-6:00PM ET

Location:

• 820 Follin Lane, Vienna, VA 22180
• 5510 Heritage Oaks Drive, Pensacola, FL 32526
• 141 Security Drive, Winchester, VA 22602

About Us
Navy Federal provides much more than a job. We provide a meaningful career experience, including a culture that is energized, engaged and committed; and fierce appreciation for our teams, who are rewarded with highly competitive pay and generous benefits and perks.
Our approach to careers is simple yet powerful: Make our mission your passion.
FORTUNE 100 Best Companies to Work For 2026
Yello and WayUp Top 100 Internship Programs 2025
Computerworld Best Places to Work in IT 2026
Most Loved Workplace - America's Top Most Loved Workplaces 2025
2025 PEOPLE Companies That Care
Newsweek Most Trustworthy Companies in America 2026
Military Times 2025 Best for Vets Employers
Forbes 2026 America's Best Large Employers
Forbes 2025 America's Best Employers for New Grads
Forbes 2025 America's Best Employers for Tech Workers
2025 RippleMatch Campus Forward Award Winner for Overall Excellence
Military.com Top Military Spouse Employers 2025
2026 Handshake Early Talent Award
Newsweek America's Greatest Workplaces for Culture, Belonging and Community 2026
From Fortune Magazine. 2026 Fortune Media IP Limited. All rights reserved. Used under license. Fortune and Fortune 100 Best Companies to Work For are registered trademarks of Fortune Media IP Limited and are used under license. Fortune Magazine, Fortune Media (USA) Corporation, and its affiliates are not affiliated with, and do not endorse products or services of, Navy Federal Credit Union.
Equal Employment Opportunity: All qualified applicants will receive consideration for employment without regard to age, race, sex, color, religion, national origin, disability, veteran status, pregnancy, sexual orientation, genetic information, gender identity or any other basis protected by applicable law.
Accommodations: If you need accommodation or assistance for a qualifying condition to complete the online application (or during any stage of the hiring process), you can contact Navy Federal's Medical Accommodations team at or by calling 1-. This team cannot provide any information on job postings or application status.
Disclaimers: Navy Federal reserves the right to fill this role at a higher/lower grade level based on business need. An assessment may be required to compete for this position. Job postings are subject to close early or extend out longer than the anticipated closing date at the hiring team's discretion based on qualified applicant volume. Navy Federal Credit Union assesses market data to establish salary ranges that enable us to remain competitive. You are paid within the salary range, based on your experience, location and market position. For additional details regarding compensation and benefits, review the Benefits page of the Navy Federal Career Site.
Protect Yourself from Job Scams: Navy Federal Credit Union jobs are posted on our career site, jobs.navyfederal.org and reputable job boards (e.g., LinkedIn, Indeed). We do not post jobs on social media marketplaces, messaging apps or unverified websites. We will never ask candidates for payment, bank details or personal financial information during the hiring process.
Bank Secrecy Act: Remains cognizant of and adheres to Navy Federal policies and procedures, and regulations pertaining to the Bank Secrecy Act.