Job Title: Senior Mainframe Engineer Location: Reston, VA Type: Contract - 6 + months - strong likelihood of extension and/or perm conversion Contractor Work Model: Mostly REMOTE but onsite for client meetings approximately 1X monthly We are seeking a highly experienced, self-driven, and technically versatile Senior Mainframe Engineer to support and evolve our client's enterprise systems. This role requires an individual with strong initiative, a passion for technology, and the ability to take o