Michael Sieber

About Michael Sieber

I am a defense and technology leader with more than 25 years of experience leading complex organizations across Department of Defense operations, cybersecurity, and technology modernization.In my current role, I lead a $35M DoD portfolio with direct responsibility for business performance, including revenue, pricing strategy, cost discipline, and hiring decisions across multiple active programs. My focus is on scaling delivery, protecting margin, and driving sustainable growth in classified and highly regulated environments.I have a proven record of on-contract revenue growth, expanding scope to meet evolving compliance, RMF modernization, and secure cloud requirements, while maintaining strong customer relationships and delivery performance. I work closely with customers and corporate leadership on pricing strategy, capture decisions, and portfolio-level tradeoffs.I also lead customer-aligned R&D and innovation initiatives, including an internal Battle Lab that serves as a rapid prototyping and capability-maturation environment. My emphasis is on converting innovation into fundable programs and long-term growth.I am a retired U.S. Army Colonel with extensive experience operating at senior decision-making levels, managing large budgets, and leading multidisciplinary teams under conditions of risk, complexity, and accountability.I am particularly interested in leadership roles where portfolio ownership, growth accountability, and applied innovation intersect. I enjoy environments that value sound judgment, disciplined execution, and the ability to translate strategy and R&D investments into durable, mission-aligned results.

Experience

1. Senior Director, Defense Market Technology Solutions

   Maximus

   May 2023 — Present · Tysons Corner, VA, US

   Leads a $35M DoD contract portfolio spanning secure cloud, RMF modernization, classified systems, and automation initiatives, with direct responsibility for P&L execution, pricing strategy, margin corrective actions, and hiring decisions across multiple programs.Highlights:• Accountable for portfolio financial performance, including margin correction actions, delivery cost controls, and pricing strategy development.• Drive customer-facing pricing and scope negotiations in coordination with corporate leadership.• Built and scaled delivery teams exceeding 60 cleared personnel with direct hiring authority.• Drove 15% portfolio revenue growth through on-contract expansion supporting compliance, RMF modernization, and secure cloud initiatives.• Shape capture and growth strategy, materially influencing bid/no-bid decisions and solution direction.• Lead internal Battle Lab (customer innovation and prototyping center) and CRADA-aligned R&D initiatives.• Drive portfolio growth strategy targeting $7M in annual revenue.

Education

• Vanderbilt University Owen Graduate School of Management

  Business Management Certificate

• Mercyhurst University

  Bachelor of Arts (B.A.)

• University of Oklahoma

  Master of Arts (MA), International Relations and Affairs

• Naval Postgraduate School

  Master of Science - MS, Information Operations / Defense Analysis

• Webster University

  Master of Arts (MA), Human Resources Management/Personnel Administration, General