John Hertrich, founder, owner, and President of Professional Software Associates, Inc. (PSA) has been working in the software development industry since the late eighties and is experienced in all facets of software design, implementation, project management, and business operations. In 1993, Mr. Hertrich founded Professional Software Associates, a software development firm serving defense and commercial industries. During this time he has managed more than 100 different software development projects. In 1994, under Mr. Hertrich’s leadership, PSA partnered with Zinc Software, Inc.; a developer of cross platform graphical user interface tools for desktop and embedded systems, as an independent Zinc software services consultant, and successfully built a service organization providing Zinc software consulting services.
In early 1997, with Zinc Application Framework consulting services growing, Mr. Hertrich extended the relationship with Zinc Software, forming a joint venture company, Zinc Software Services. Mr. Hertrich served as President of Zinc Software Services where he directed services and training activities, providing clients with complete professional services and a variety of training course offerings.
In 1999, Wind River Systems acquired Zinc Software Services. After the acquisition, Mr. Hertrich served as a Senior Project Manager for Wind River Systems Professional Services Business Unit managing high profile projects for a variety of engineering domains in the United States and Internationally. Presently, Mr. Hertrich is serving as a project and a business manager for PSA continuing his role in the management of customer projects onsite and offsite both domestically and internationally.
Prior to PSA, Mr. Hertrich served as a software project engineer developing 3D engineering analysis programs integrated with leading CAD systems for Variation Systems Analysis, Inc. During this period, Mr. Hertrich co-authored and was granted a patent for engineering analysis (U.S. Patent 5,586,052). Before joining Variation Simulation Analysis, he developed remote control software and led the development of a robotics laboratory for testing emerging robotic technology for the U.S. Army.
Mr. Hertrich holds a Bachelors of Science degree in Mechanical Engineering from Michigan Technological University.

Matt Osterwyk, Operations Accountant is responsible for all facets of accounting and financial statement preparation for compilation, review, financial planning, and tax preparation at PSA. Mr. Osterwyk is also involved in various operations and financial oversight of the PSA's development center located in Minsk, Belarus. Prior to PSA, Mr. Osterwyk worked at GrandScapes, Inc. for 7 years starting as a staff accountant and finished his duties as the company controller. At his position, responsibilities included companywide financial operations, managing a staff of 45 employees with daily planning of operational duties for the staff, and management of the company's statewide operations. Mr. Osterwyk holds bachelor and associates degrees in Business/Accounting from Baker College and will complete his MBA in 2010.

Alexander Drabo, manages business processes for "BestSoft", PSA's offshore development center located in Minsk, Belarus. Mr. Drabo is responsible for expansion of business ties with local and foreign partners, strategic planning of financial resources, and management of company’s human resources. Among his responsibilities are for providing PSA customers with a wide choice of quality products and a full spectrum of support services. Before joined PSA, Mr. Drabo served as deputy director for "The plant of the off-road vehicle" a development and manufacturing plant for off-road vehicles. While at "The plant of the off-road vehicle" he participated in the formation of the organization. As a top manager he developed processes for hi-tech machine-building manufacture and introduction of quality management systems within the organization. Mr. Drabo has a degree in Economics from the Belarusian State Economic University.

Alexander Shulinin, Technical Director, manages the technical infrastructure for "BestSoft", PSA's offshore development center located in Minsk, Belarus. Mr. Shulinin is responsible for company’s infrastructure maintaining and successful functioning, including hardware equipment and project lifecycle management solutions used by PSA. His responsibilities also include continuous improvement of the company automation process, projects environment configuration, and resource hiring process. Prior to PSA, Mr. Shulinin served as a senior software engineer developing payment terminals and server side components for on-line and off-line payments. Mr. Shulinin has a degree in Computer Science from the Belarusian State University of Computer Science.

Alexei Belous, Executive Director, manages all development and quality assurance process for "BestSoft", PSA's offshore development center located in Minsk, Belarus. Mr. Belous is responsible for the delivery of all development activities, including services and product development. His responsibilities also include continuous improvement of the software development process, communications with PSA customers, resource planning, and project management. Mr. Belous has a 14 years experience in software development, and prior to PSA he served as a project manager and a business analyst in a SaM-Solutions software development company. Mr. Belous has a degree in Applied Mathematics and Computer Science from the Belarusian State University.