Our Leadership Team
Meet the leaders driving the Biolyst team.
Chief Executive Officer
Jay Hexamer
Jay Hexamer joined Biolyst Scientific as Chief Executive Officer in March 2025. With over 30 years of experience in the scientific, healthcare, and life sciences industries, Jay brings a wealth of knowledge in strategic leadership and operational excellence. Prior to joining Biolyst, he served as President, CEO, and Senior Advisor at Caron Scientific, where he led global operations across the U.S. and U.K., strengthening sales and marketing initiatives, driving product innovation, and expanding global distribution networks.
His tenure at Avantor (VWR International) further solidified his reputation as an industry leader, overseeing businesses and implementing aggressive sales and marketing initiatives that significantly expanded market share. Jay holds an MBA from Butler University and a Bachelor of Science in Business Marketing from Indiana University’s Kelley School of Business.
“I am honored to join Biolyst Scientific at such a pivotal time in its evolution,” said Jay. “The company has a strong foundation in scientific innovation and customer commitment, and I look forward to working with the team to accelerate growth, expand market presence, and deliver even greater value to our customers.”
Chief Operating Officer
John Andzulis
John joined Biolyst Scientific as Chief Operating Officer in March 2024. In this capacity, John leads the Manufacturing Operations, Supply Chain, and Quality functions and is responsible for instilling a culture of operational excellence to reliably and efficiently meet customer needs.
John brings over 25 years of experience in Operations, with leadership roles spanning Manufacturing, Supply Chain, Quality, Logistics and Distribution, and Engineering. Most recently, he served as Chief Operating Officer for G&H Photonics, where he gained extensive experience in business integration post-acquisition. Prior to his tenure at G&H Photonics, John held key operational leadership positions at Thermo Fisher Scientific, Corning, and Novanta. He holds a bachelor’s degree in Industrial and Manufacturing Engineering from The Pennsylvania State University and has earned several Six Sigma and Lean certifications.
“My dedication to operational excellence is relentless, fostering a culture where quality comes first. I am driven to implement sustainable practices that ensure flawless execution, delivering the highest standards for our customers.”
Director of Quality & Regulatory Affairs
Mariana Oliveira
Mariana brings over 25 years of experience in Quality, Supply Chain, and EHS Management across multiple industries, including automotive, oil & gas, mining, construction, medical devices, and pharmaceuticals. She has led strategic initiatives in ERP implementation, multi-site quality system integrations, and regulatory compliance, working with standards such as ISO 9001, IATF 16949, ISO 13485, ISO 14001, and 21 CFR 210/211 and 820.
A certified Green Belt in Six Sigma, Mariana holds an MBA in Safety Engineering and a degree in Industrial Engineering from CEFET-MG. Before joining Biolyst Scientific, she held leadership roles at FIAT Group (now Stellantis), Sandvik, Bosch, and Troxler.
Originally from Brazil, Mariana moved to the U.S. in 2012 and joined Azer Scientific in 2022. She became Director of Quality and Regulatory Affairs in 2023 and has since been focused on strengthening the quality team, ensuring regulatory compliance, and integrating Biolyst’s quality processes to enhance customer satisfaction and drive growth.
“I don’t build quality systems for myself—they are built to drive excellence, foster a strong quality mindset, and help companies achieve differentiation through robust processes.”
Senior Director of Product Management
Ralph Finkbiner
Ralph Finkbiner serves as Senior Director of Product Management for Biolyst Scientific, leading the strategic direction and commercialization of the company’s portfolio across clinical, research, and life science markets. He oversees global product management, marketing communications, and new product development for the Azer Scientific and Electron Microscopy Sciences (EMS) portfolios, driving initiatives that strengthen Biolyst’s brand presence and expand market share in both consumables and instrumentation.
With over 16 years of experience in the life sciences and diagnostics industry, Ralph has played a key role in integrating product and marketing strategies following the merger of Azer Scientific and EMS, positioning Biolyst for continued growth. Prior to Biolyst, he served as Product and Marketing Manager for Azer Scientific, where he led numerous product launches across histology, microbiology, and clinical consumables, building partnerships with global OEMs and distributors to expand market reach.
Ralph holds a Bachelor of Science degree in Biology from The Pennsylvania State University.
“Leading product management and marketing at Biolyst means guiding a team that transforms a diverse portfolio into solutions that truly advance clinical and research workflows.”
Director of Strategic Accounts
Steve Fithian
Steve has 7 years of sales experience all with Azer Scientific ranging from inside sales, outside sales, and Strategic Accounts Manager. During this time, he focused on growing customer base and building relationships while delivering quality products in a timely manner.
He is responsible for managing relationships with key clients, developing sales strategies, and driving revenue growth for the organization while ensuring customer satisfaction and loyalty.
“Committed to driving success and long-term business sustainability by aligning the company’s offerings with the evolving needs of our customer base.”
