Mainframe Security Engineer

Capital One

Full-time Computer Occupations
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Location
McLean, Virginia, United States
Posted
July 04, 2026

Job Description

Overview

Mainframe Security EngineerDo you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who love to solve real problems and meet real customer needs. We are seeking a Mainframe Security Engineer who is passionate about marrying data with emerging technologies to join our team. As a Mainframe Security Engineer you’ll have the opportunity to be on the forefront of driving a major transformation within Capital One.

As a Mainframe Security Engineer, you will: 

  • Optimize cybersecurity program processes and output. 

  • Contribute to the broader program roadmap. 

  • Drive reporting accuracy and demand excellence in department deliverables. 

  • Actively manage and escalate risk and customer-impacting issues ...