Lead Security Engineer - SME (R-00242)

We are seeking a highly experienced Lead Security Engineer to provide technical leadership, cybersecurity engineering expertise, and strategic oversight in support of a federal government program. The ideal candidate will possess extensive experience in application security, cloud security, and enterprise cybersecurity architecture, with a demonstrated ability to lead complex technical initiatives and collaborate with senior government stakeholders.

Position Overview True Zero is seeking a Portfolio Manager, Commercial & SLED to own the delivery performance, financial results, growth, and people of a defined market segment. This is a working-leader role: the Portfolio Manager is accountable for a portfolio of customers, contracts, and programs, and serves as the business owner for that segment — responsible for revenue and gross margin, delivery quality and contract compliance, customer relationships, account growth, and the leadership and development of the people assigned to the segment.

The Portfolio Manager is the first-line supervisor for the Program Manager and Project Manager tier within the segment (which in turn supervises delivery staff), and remains partially billable — maintaining 40–50% billable or chargeable utilization while leading the business. The ideal candidate brings a track record of P&L ownership, team leadership, and customer management in consulting, professional services, or government program delivery. This role will be reporting to the Director, Commercial/SLED Services.