Our Team


David Katzoff brings more than 25 years of software product development, applications engineering, systems integration, project management and compliant business solutions design experience to his role. Much of that experience is concentrated in enterprise-class research, manufacturing and business and marketing systems for premier clients in the life sciences, financial services and manufacturing sectors.

As a co-founder of Valiance, David led the initial development of Valiance’s core software products TRUcompare and TRUmigrate. His thorough understanding of the supported platforms, user interface design and novel testing techniques directly resulted in Valiance’s unique product direction path.

Before joining Valiance, David was a senior project director for Altro Solutions, responsible for key engagements with Fortune 500 clients and centered on large-scale, content-intensive projects with a strong regulatory overlay. Prior to Altro, David was a consultant for Cap Gemini where he took increasing responsibility for projects with sophisticated business functions through the integration of multiple software applications. In addition, he has held technical training and application engineering positions for Configured Systems and Multilevel Systems Design, Inc.

David earned a B.S. in Electrical Engineering from the University of Rochester in New York and is a member of the Phi Beta Kappa Society.

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Nagesh Sarma has more than 26 years of project management, software development, large-scale systems integration and data migration experience. Nagesh is a database, content management and systems testing expert, having directed numerous projects in the life sciences, healthcare, financial services and consumer retail industries.

As a co-founder of Valiance, Nagesh’s role has always been on the forefront of new product and services offerings. Nagesh oversees the development of Valiance’s products and spearheads Valiance’s efforts to extend the successes of TRUcompare and TRUmigrate to new applications and markets.

Prior to Valiance, Nagesh was senior project director for Altro Solutions, leading engagements for some of the largest pharmaceutical and medical device manufacturers in North America. Many of these projects emphasized controlled document processes, standard operating procedures, clinical and manufacturing.

Nagesh has also held project management and engineering positions at Intelligroup, Inc., where he played a central role building solutions for both public and private sector clients. Before Intelligroup, Nagesh served in a variety of IT positions at Carnival Cruise Lines and Nucleus Software Workshop Ltd. of New Delhi, India. He earned a B.T. in Civil Engineering from Nagarjuna University in Guntur, India, as well as a M.T. from the Indian Institute of Technology in Kharagpur, India.

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Managing Director

Nusrat Aliya brings more than 20 years of experience in the design and development of enterprise class GxP systems applications, program management, systems integration, software validation, and business critical data migrations. She has focused much of her energy on FDA regulated industries, including pharmaceuticals, medical devices and biotechnology.

Since joining Valiance in 2004, Nusrat’s ability to efficiently implement Valiance migration software from the simplest to the most complex large scale multi-system consolidations is greatly valued by team members and clients alike. Nusrat is currently the managing director of quality and compliance.

Before joining Valiance, Nusrat worked as a senior project manager for Altro Solutions, Inc., managing the implementation and validation activities for regulatory and controlled document management systems. Prior to that, she was a senior consultant at Trecom Consulting Services, Inc., and was responsible for implementing record/content management systems. Nusrat earned a M.S. in computer science from the New Jersey Institute of Technology and a B.S. in electrical engineering from the University of Massachusetts.

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Head of Business Development

Tom Witmer is head of business development for Valiance. He has over 35 years of sales and sales leadership experience in enterprise software companies in the database and content management space, serving the life sciences software industries.

Tom joined Valiance Partners from Virtify, where he was responsible for leading their sales and business development. Prior to Virtify, Tom spent over 15 years on Documentum’s Life Science sales vertical team, handling major accounts such as Pfizer, Schering-Plough, Merck, and Becton Dickinson. He was also instrumental in starting and participating in the Life Sciences Customer Advisory Council at Documentum. Prior to Documentum, Tom held various senior sales management positions at Verity, Unify, Ingres and Timeplex.

Tom holds a B.S. from Rider University.

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Managing Director

Paul Crean is Director for Valiance Partners Europe Ltd. Paul is an experienced data management professional with more than 20 years of experience in the design and implementation of integrated data solutions.

Prior to joining Valiance in 2016, Paul managed a data analytics team at ICON plc, responsible for the development and delivery of data analysis products for clinical risk analysis, patient safety review and clinical study quality management. Paul has worked in the Pharmaceutical industry for over 10 years.

Before ICON plc, Paul held data warehousing and data architecture roles in the legal and online gaming industries.

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Uma Aiyer
Managing Director

Uma Aiyer brings 20 years of software design, system integration, process improvement, project management, data management and data migration experience to her role. Uma has vast experience in product development, data and content migration of structured repositories and has completed several successful migrations for major customers in the life sciences and insurance space.

Since joining Valiance in 2005, Uma contributed significantly to Valiance’s product development. She advanced through a series of increasingly responsible positions, based on strong technical capabilities, operational effectiveness and customer satisfaction.

Prior to joining Valiance, Uma was a content management solution architect with Emblem Health (formerly HIP), where she helped digitize content for various departments.  Before then, she was with Tata Consultancy Services, leading their application development efforts for their insurance vertical. Uma received a B.S. – earning the gold medal – in Electronics and Communication Engineering from Madurai Kamaraj University, India.

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Sureeta Mathur
Managing Director

Sureeta Mathur has more than 24 years of experience in software design, quality assurance, product development, data management and project management in the life sciences and finance/banking industry. At Valiance, Sureeta has handled migrations involving multiple technologies and successfully completed them for various major clients.

Prior to Valiance, Sureeta progressed through various IT positions at Broadridge Financial Solutions where she was responsible for designing and building secure financial data transfer, real time data ingestion, data extraction and reporting solutions for the brokerage clients. Before then, Sureeta has worked as lead analyst for Birla Horizons in United States and United Kingdom and Nucleus Software Workshop Ltd. in New Delhi, India.

Sureeta has earned a M.S. in computer applications from Institute of Management Studies, India and B.A. Mathematics from Delhi University, India.

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Rachana Khatkhate
Managing Director

Rachana Khatkhate is a Managing Director at Valiance/NNIT and has more than 21 years of experience in software design, quality assurance, product development, data management and project management in the life sciences and finance/banking industry. At Valiance/NNIT, Rachana has led significant migration projects over the past 6 years involving multiple technologies and successfully completed them for our major clients.

Prior to Valiance, Rachana progressed through various IT positions at Evoke Technologies, Union Security Insurance, and various other technology companies where she was responsible for designing and building a variety of technology products in various industries.

Rachana has earned a M.S. in Electrical Engineering from Univ of California, Riverside India and B.E. Electrical Engineering from Mumbai University, India.

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