ESR Home :: About Us
Leadership Team
The leadership team at Enterprise Solutions Realized is made up of a
dynamic group of people with extensive and diverse backgrounds, experience
that serves ESR well.
Dennis Christmas, President & CEO and Co-Founder
Dennis is a highly experienced and effective leader and a talented
software developer.
Dennis’ nearly 20 years of private-sector IT consulting experience combined
with 10 years of executive IT experience at the Social Security Administration has
prepared him well to respond to the challenges of both sectors. His
philosophy of hiring good people and then creating an environment where they can grow and flourish is a
driving principle behind ESR’s success.
Karen Dwyer, Vice President, Operations
Karen brings to bear more than 25 years of experience in the healthcare
and financial services industries to her role of managing the vital back
office operations of ESR. Her career includes Big-Eight management
consulting and senior executive IT and operational positions with national
and international companies. Karen serves on the Board of Trustees for the
Columbia Foundation. She has a Masters in Hospital Administration from the
Ohio State University.
Dale M. Posthumus, Vice President, Marketing & Sales
Dale comes to ESR with nearly 30 years of experience in marketing,
business development, and sales. He has worked for multinational leaders and
for small companies as well as for Federal and state governments. He has
extensive international marketing experience, living and working overseas
for more than 11 years. Dale has a Masters in Agricultural Economics and
International Trade from Michigan State University.
Roger White, Chief Systems Architect
Roger brings 20 years of experience in software development, working for both large prime contractors and smaller software consulting companies. His expertise is in the areas of software architecture, OOA/D, use case modeling, and the development process. Roger is an experienced teacher and mentor and has published a number of articles. Roger has a BS in Computer Science & Mathematics from Missouri Western State College.