Leadership Team

Juan Sims / President and CEO

Juan Sims

Juan Sims is a Management and IT Consulting professional with over 20 years of military and federal agency experience. He provides cutting edge thought leadership supported by inter-disciplinary best practices to help improve clients' daily performance and results. He ensures Leaders receive a full spectrum of tools/techniques to seamlessly integrate people, processes, policies, and technology in order to successfully achieve stated organizational goals.

Juan and his team are guiding USFS to become the premier mid-tier IT and Management consulting firm that government organizations call on FIRST to solve the hard problems while delivering results on time and within budget. He leads with the following values:

  • People: Be a great place to work where people are inspired to be top performers and are the architects of their career
  • Portfolio: Bring to all agencies a portfolio of high value, management consulting services that anticipate and satisfy their needs
  • Partners: Cultivate a winning network of strategic business partners, together we create mutual enduring value
  • Planet: Be a responsible citizen that makes a difference by helping build and support sustainable communities
  • Productivity: Be a highly effective, lean, and fast-moving organization

Juan is a decorated veteran of the U.S. Army. He received his B.S. from Furman University and holds several certifications to include PMP, Lean Six Sigma Black Belt and Agile.

Greg Cambareri / Executive Vice President

Greg Cambareri

Greg is a management consulting executive and entrepreneur with over 25 years of experience supporting federal government agencies and Fortune 500 companies. At U.S. Federal Solutions (USFS) Greg is responsible for setting company direction, developing strategic goals and growth objectives with a focus on business transformation solutions for defense and civilian missions.

Greg has extensive experience providing subject matter expertise in strategic planning, financial management, performance management, and IT modernization. Greg has successfully led multiple multi-vendor programs across the Department of Defense and Department of Homeland Security and has been recognized for his outstanding contributions to program successes.

Prior to joining U.S. Federal Solutions Greg provided entrepreneurial and business transformation support in opening new technology offices in London, Zurich, and Madrid.

Greg received his MBA from Duke University, MS in Geophysics from North Carolina State University, and BS in Physical Sciences from Western Carolina University. Greg is also a certified Project Management Professional (PMP).

V. Nelson Smither / Vice President of Sales and Delivery

Nelson Smither is a seasoned Sales and Delivery Executive with over 25 years of global business leadership experience. He is a passionate business development and organizational transformation strategist.  Nelson has strong history of client and corporate success, winning and delivering large complex programs. He has consulted for numerous industry verticals to include aerospace and defense, federal civilian, state and local government, international agencies, and the commercial sector.

Throughout his career Nelson has supported a diverse client base and cultivated strong strategic business alliances worldwide. He has a proven track record of leading small, mid-sized, and large for-profit organizations, as well as numerous non-profit entities. Business transformation, corporate growth strategy, planning, and execution are amongst his many passions.

Nelson is a charismatic public speaker, orals coach, and occasional adjunct professor to higher education institutions.  He maintains active Project Management Professional (PMP) credentials from the Project Management Institute (PMI) and is certified Federal Acquisitions Community, Program/Project Manager (FAC-PPM) instructor.

He is a decorated veteran of the U.S. Navy Intelligence community, U.S. Army National Guard Special Operations, and has supported U.S. and NATO forces as a civilian contractor in austere combat zones around the globe.  Nelson received his B.S. from the University of New York, Regents College with post graduate studies at George Washington University and the University of Maryland.

Dr. Andrew Uscher / Director of Operations

Dr. Andrew Uscher

Andy is a former Air Force Officer and Senior Executive (ES-3) in the Office of the Secretary of Defense. After retirement from active duty, he worked for Deloitte, Language Line, and LMI. His experience included helping establish the all-volunteer armed forces, changing the intelligence priorities within DIA, sponsoring the automated fingerprint identification system within the FBI, heading up the Critical Infrastructure Review, setting up DFAS within DoD, recommending the establishment of DHS, and writing the telework policy for DoD. Andy has provided subject matter expertise in management analysis, human capital, budgeting, and national security affairs to DoD and the FBI.

Andy is a decorated U.S. Air Force Officer.  He received his MBA from Wharton and his Doctorate in Public Administration and National Security Policy from George Washington University. He was a Professor of Public Administration and National Security Policy at George Washington University and George Mason University.

Natashia Hunter / Human Resources Manager

Natashia Hunter

Natashia has over ten years of successful human capital and administrative experience to include subject matter expertise in organizational effectiveness, workforce analysis and optimization, employee training, as well as performance appraisals and awards.

Natashia supports our efforts in hiring the best talent, developing our employees, and optimizing performance with an emphasis on employee engagement, workplace improvement, and reinforced accountability through performance reviews - all while preparing our workforce for future needs.

Natashia is a veteran of the United States Army where she served as a division paralegal and cadre of The Judge Advocate General’s Legal Center and School Judge Advocate Officer Basic Course.  Natashia deployed to Afghanistan in support of Operation Enduring Freedom and was nominated for the Sergeant Eric L. Coggins Award of Excellence.

Natashia is currently pursuing a Bachelor of Science in Business Administration from Liberty University with a major in Business Management.

Charretta Smith / Recruiting Manager

Ms. Charretta Smith has over 25 years’ staffing/recruiting and management experience in the areas of Information Technology, Cyber, and Intelligence supporting cleared opportunities for DOJ, DoD, DIA, Military, DHS, & other Federal Government agencies.  Additionally, she has experience in Business Development and Account Management.  Charetta is currently pursuing her PhD in Psychology at Walden University.  She is a member of Women in Technology, an active member of NAFE National Association for Women Executives, and is SHRM-SCP Certified.

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