Meet Our Leaders
Meet some of the talented individuals behind our company. Our team of industry professionals is dedicated to providing exceptional service every step of the way.
Sandra Thompson, MA
Founder and CEO
Sandra founded Big Bang in 2006 and has been a qualitative market research professional for 20 years. A graduate of Oral Roberts University with a Master of Arts degree, she is passionate about international cultures and people. As a leader, Sandra guides the team and develops innovative business strategies that drive growth and success. She thrives on tackling challenging assignments, where fresh approaches and creative methodologies lead to breakthrough insights and ideas. Outside of work, Sandra enjoys playing and captaining tennis and exploring new destinations through travel.
Andrea Addison, MBA, MS
Director of Operations and Technology
Andrea, a top graduate of Oral Roberts University, earned her undergraduate degree in Accounting and Finance before pursuing double master’s degrees in Business Administration and Computer Science, specializing in Data Science. Originally from Serbia, Andrea was also a Division 1 tennis athlete and continues to enjoy playing sports in her free time. Since joining Big Bang in 2022, she has leveraged her exceptional expertise to drive innovation and success within the company.
Cyndi Barber
Director of Recruiting
Cyndi has been with Big Bang for over 16 years. She uses her vast experience to ensure that each project is paired with the right participants and that these individuals are aligned with the ideal research opportunities. Cyndi’s expertise and attention to detail guide every project, overseeing the recruitment process from start to finish. Outside of work, Cyndi enjoys spending quality time with her family and friends. She is happily married, a proud parent of three children, and enjoys the company of her five wonderful grandchildren who bring joy to her life.
Matthew Vasiljevic
Database Manager
Matthew earned his degree in Finance in Serbia, where he developed a strong foundation in financial systems and data management. With a sharp attention to detail and a genuine passion for learning, he plays a key role in ensuring our database processes are accurate, efficient, and secure—helping to drive the success of every project. Since joining Big Bang, Matthew’s dedication and analytical approach have been vital in keeping operations running smoothly and supporting our recruitment efforts. Outside of work, he enjoys following soccer and basketball and loves spending time outdoors.
Hannah Hardin, MPH
Project Manager
Hannah earned her Bachelor’s degree in Psychology from Northeastern State University and her Master’s in Public Health from Capella University. Originally from Checotah, Oklahoma, she moved to Tulsa in 2010 to pursue higher education and has called the area home for 15 years. Since joining Big Bang Recruiting, she has brought her expertise and dedication to every project, often spearheading our next GEN audience recruiting efforts. In her spare time, Hannah enjoys cooking, hosting events, spending time with her husband and two children, dancing, listening to music, shopping, and outdoor activities.
Alicia Khwaja
Project Manager
Alicia transitioned to Big Bang Recruiting after more than 20 years in the telecommunications industry, bringing with her a deep understanding of communication and organizational processes. She plays a key role in supporting our Spanish-speaking recruitment efforts, ensuring we effectively connect with diverse participant groups. Alicia values spending quality time with her family and prioritizes being there for them, making family an important focus in her life outside of work.