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Principal Mainframe Engineer

Navy Federal Credit Union
$131,700.00 - $206,450.00 / yr
United States, Virginia, Vienna
Jul 31, 2026

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.

Design, implement, maintain, and improve Navy Federal mainframe systems. Configure and troubleshoot unique operating systems and obsolete tools. Ensure the smooth operation of our systems and develop new features and functionality to support business needs. Work independently to interpret and develop solutions to complex business challenges that have a significant impact on the function or branch. Specialized skill set and proficiency with procedures and techniques. Recognized as an expert in own area within the company.

Responsibilities

  • Lead the design and implementation of complex mainframe solutions, and maintain mainframe applications - TPHOST programs.
  • Establish the technical direction of mainframe development and architecture, aligning with organizational goals.
  • Monitor system performance and troubleshoot problems.
  • Configure, perform analysis and maintain mainframe hardware and software to optimize system performance and availability.
  • Use obsolete tools and languages to address challenges and optimize system performance.
  • Document and update system procedures and provide support and training to end users.
  • Develop and test new software and system updates.
  • Research and make recommendations of emerging technologies to enhance mainframe capabilities.
  • Assist with the development and enhancement of practices, procedures, and instructions
  • Develop and maintain strong working relationships with team members, subject matter experts, and leaders; work with senior management on complex issues
  • Lead medium to large projects and initiatives
  • Act as a technical advisor and mentor/train junior engineers and interns as needed.

Qualifications

  • Master's degree in Computer Science, Information Technology, or a related field, or equivalent experience.
  • Minimum 5 years of experience in mainframe engineering and application development.
  • Subject matter expert within business area/specialization with understanding of interrelationships of different disciplines.
  • Subject matter expert in Fidelity Information Systems (FIS) and Systematics Core banking application (GN, RM, ST, IMPACS, ALS, etc).
  • Experience using Changeman.
  • Comprehensive understanding of data dictionaries, copybooks, and parms.
  • Advanced knowledge of mainframe systems, unique operating systems, and obsolete programming tools and languages.
  • Advanced knowledge with mainframe systems, Assembler, COBOL, JCL, and databases such as DB2.
  • Advanced knowledge of z/OS system software, subsystems, and utilities.
  • Significant experience in delivering large-scale mainframe projects.
  • Advanced communication skills, both written and verbal.
  • Advanced problem-solving and analytical skills.

Additional Information

Hours:

  • Monday - Friday, 8:00AM - 4:30PM

Location:

  • Remote

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 medicalaccommodations@navyfederal.org or by calling 1-888-503-6013. 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.
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