Our Team

Oleg Shinkazh – CEO and Founder

Oleg Shinkazh is a founder of ChromaTan and inventor of “Countercurrent Tangential Chromatography.” He is a chemical and biotechnology engineer with 17 years of experience in R&D and technical support in the biotechnology industry, specializing in downstream processing/purification of human biologics. Oleg has extensive experience with all unit operations in the modern marketplace and has worked and collaborated with such industry leaders as Millipore Corp., Pall Corp., Genentech, Biogen, and many others.

Boris Napadensky - VP of Engineering


Boris Napadensky, VP of Engineering at ChromaTan, is a chemical engineer with 15 years of experience in leading the development and scale-up of new technologies. He joined ChromaTan in January 2012. Boris is an accomplished technical manager with a lot of expertize in design and construction of new chemical process systems on lab, pilot and commercial scale. Boris has been leading design and construction of the Countercurrent Tangential Chromatography (CTC) prototype and demo systems. Boris will also lead scale-up of CTC technology to a commercial scale.

Dmitriy Fedorenko – Associate Director of Process Sciences


Dmitriy joined the ChromaTan team as a development engineer in 2016. In 2017 he was promoted to group leader of the laboratory group. Dmitriy’s group is responsible for executing experiments on all customer related and system related projects as well as next generation technologies. Prior to ChromaTan Dmitriy gained 5 years of experience in downstream processing at Abbvie. He has developed, transferred, and supported several commercial processes focused on monoclonal antibody purification. Dmitriy has a history of developing novel solutions related to continuous processing such as researching buffer systems that are suitable for continuous operations as well as multi-column chromatography.

Sujit Varma - Senior Controls Engineer


Sujit Varma joined ChromaTan in February 2020 as a Senior Controls Engineer. He has 8 years of experience having previously supported major OEM, pharmaceutical and chemical manufacturing organizations in the roles of Operations Engineer and Automation Engineer. Sujit has a master’s degree in Mechanical Engineering from Linköping University, Sweden and a bachelor's degree in Electronics and Communications Engineering from Andhra University, India. Sujit will actively work on the engineering and development of controls for commercial CCTC skids as well as the development of PAT and control integration strategy for fully continuous integrated bioprocessing operations.


Eben Crawford - Associate Engineer II


Eben graduated from the University of Massachusetts Dartmouth with an undergraduate degree in Bioengineering and is currently continuing his education working towards a MicroMasters in Data Science through MIT. He worked in fed batch mAb manufacturing for 2 years primarily in Downstream and assisting with activity in Upstream. Eben also has 2 years of experience in Downstream and Viral Clearance process development for mAb purification for over a dozen projects. To increase productivity, he developed a software suite using VBA and MS Excel to collect, filter, and scale data from PD to simulate expected manufacturing conditions to find cost savings and identify bottlenecks. Eben joined ChromaTan in October 2018 and is supporting CCTC process development, integration, and modeling activities.


Brad Olson - Mechanical Engineer I


Brad graduated with his master’s degree in Mechanical Engineering from University of Massachusetts Lowell on 2013, after which he began his PhD research in fluid structure interactions for mitigation of vortex induced vibrations. In December of 2018 he started working for ChromaTan while finishing his PhD. He specialties include fluid dynamics, composite materials and mechanical characterization of materials.

April Hile - Operations Assistant


April Hile joined ChromaTan in January 2018 as an Operations Assistant. She dual functions in supporting the laboratory in upstream operations, as well as research compliance (e.g. - bookeeping, proposal preparation). April’s prior experience stems from her tenure in Penn State biochemical engineering & agricultural biotechnology lab (CurtisLab). Her contributions there included experimental demonstrations of low-cost bioreactor systems and support of over a dozen grant proposals including effort that directly resulted in the award of a $7M DARPA Insect Allies project.

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