Leadership

AHMED R. ALI

PRESIDENT AND FOUNDER

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Board Of Directors

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JOSEPH RHODES

CHIEF EXECUTIVE OFFICER

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NATHAN SETH

CHIEF GROWTH OFFICER

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MICHAEL ROBERTS

CHIEF INFORMATION OFFICER

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JAG GANGAHANUMAIAH

CHIEF OPERATING OFFICER

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RAJESH GORE

CHIEF TECHNOLOGY OFFICER

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MUKUL GUPTA

CHIEF SOLUTIONS ARCHITECT

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HEMA JAGADEESWARAN

VICE PRESIDENT, OPERATIONS & STRATEGY

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SEAN WARNER

VICE PRESIDENT, OPERATIONS

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ULRIKE NASSHAN

VICE PRESIDENT, GROWTH - FEDHEALTH

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LAUREN R. LAWRENCE

VICE PRESIDENT

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BRAD TRUXELL

VICE PRESIDENT, CONTRACTS

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ELIZABETH MATHEW

VICE PRESIDENT, PORFOLIO OPERATIONS

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AHMED R. ALI

PRESIDENT AND FOUNDER

Ahmed R. Ali is the President and Founder of TISTA Science and Technology Corporation.
Experience
Ahmed is a U.S. Navy Veteran, with over 30 years of military, federal government, and civilian experience in engineering, information technology, cybersecurity, and project/program management.  While serving, Ahmed worked on various aspects of engineering, fire control radar, weapons systems, electronic warfare, and communications. Ahmed served onboard an Arleigh Burke-class guided missile destroyer and completed multiple deployments throughout the world in support of various military operations. Duty stations included Recruit Training Command (IL), Naval Surface Warfare Center (VA), Pearl Harbor (HI), Bolling Air Force Base (DC), and the Pentagon (DC).
Education
Ahmed received his B.S. in Information Systems Management from the University of Maryland, an M.S. in Cybersecurity from Capitol Technology University, and holds an MBA with a concentration in International Business.  Ahmed has also completed further executive level education programs at Harvard University, Georgetown University, and Dartmouth College.
Interests
Ahmed enjoys spending time with his family, playing sports, supporting various charitable organizations, different cuisines, traveling, and exploring the world.
 

JOSEPH RHODES

CHIEF EXECUTIVE OFFICER

Joseph Rhodes leads TISTA Science and Technology Corporation's (TISTA) strategic course as the CEO.
Experience
Joe previously served as TISTA’s Chief Operating Officer (COO). Prior to joining TISTA, he served in senior executive leadership roles with Kforce Government Solutions (KGS) and General Dynamics Information Technology (GDIT). Joe has a proven history of providing highly rated solutions to multiple healthcare, intelligence, and homeland security agencies. He also has a wealth of experience in results-driven agile management and innovation approaches, with a focus on high-performance computing and analytics.
Education
Joe holds a Master of Business Administration degree from the University of Mary Washington, as well as a Bachelor of Science degree from Virginia Tech.
Interests
Joe enjoys spending time with his family, reading, and staying physically active outdoors whenever possible. He has a passion for continual learning, particularly around future technologies and concepts.

NATHAN SETH

CHIEF GROWTH OFFICER

Nathan Seth is TISTA's Chief Growth Officer, responsible for leading business development strategy, driving long term strategic partnerships, and identifying new markets and clients.
Experience
Nathan joined TISTA in 2017, having had 22 years of experience in architecting and implementing leading-edge technology solutions in health-IT domain, media and entertainment, API lead revenue generations, web hosting, telecommunications, e-commerce, m-commerce, online advertising, and financial industries. Prior to joining TISTA, he served as CTO in KGS (Kforce Government Solution), held several technical leadership roles in AOL and Wells Fargo, and served as technical consultant to AT&T and IBM.
Education
Nathan holds a Master of Technology Management degree from George Mason University, an MBA from Strayer University, Postgraduate Diploma in Plastics Engineering from CIPET, and a Bachelor of Engineering from Karnatak University, India. He is a certified Federal CIO from the Federal CIO Council.
Interests
Nathan enjoys spending time with his family, exploring new technologies, volunteering and spiritual enrichment.
Other
He is a Certified Product Manager (CPM) and Certified Product Marketing Manager (CPMM) from the Association of Product Management and Product Marketing (AIPMM), tackling the challenges of Big Data Certification from MIT, a Certified Enterprise Architect (CEA), and an Open Group Architecture Framework (TOGAF) certified Enterprise Architect.

MICHAEL ROBERTS

CHIEF INFORMATION OFFICER

Michael Roberts heads TISTA's IT, information security, and innovation initiatives, ensuring that TISTA employees can provide the high delivery quality TISTA is known for.
Experience
Michael Roberts has over 20 years of experience managing and implementing complex IT, development and security projects, with emphases in big data/analytics, application development, and agile methodologies across a diverse array of federal government, technology, banking, and insurance entities.
Education
Michael holds a Bachelor of Science degree in Computer Science from Ashland University in Ashland, Ohio.
Interests
Michael enjoys spending time with his family, exploring new technologies, and volunteering.

JAG GANGAHANUMAIAH

CHIEF OPERATING OFFICER

Jag Gangahanumaiah, as TISTA's Chief Operating Officer (COO), oversees the market, talent and strategy execution that ensures delivery excellence and the people-first focus in the quality offerings that TISTA associates are known for providing its customers.
Experience
Jag is a seasoned IT professional experienced in successfully implementing solutions across multiple federal and commercial agencies for the past 25 years at UHG/Optum, IBM, PwC & TCS. He was most recently the Sr. VP at UHG/Optum (OptumServe Technology Solutions, formerly QSSI) where he led a portfolio of Federal IT programs serving CMS, Education, and HUD customers.
Education
Jag holds a Bachelors in Electronics Engineering from Bangalore University, India and a Healthcare MBA from OPUS College of Business, St. Thomas University, MN.
Interests
Wellness workshops, Helping non-profits, Self exploration, Being Human

RAJESH GORE

CHIEF TECHNOLOGY OFFICER

Rajesh Gore is TISTA's Chief Technology Officer (CTO). He is currently focused on developing technical strategy and establishing a digital transformation journey focusing on cloud transformation, artificial intelligence, workflow streamline tools, big data engineering and big data analytics in Health-IT Domain.
Experience
Rajesh Gore is an accomplished technology and business executive, and has more than 29 years of experience architecting, and implementing leading-edge technology and innovative solutions in Health-IT domain. He has long history of supporting customers in defining their technical strategy, providing value and results, and supporting their business needs.
Education
Rajesh holds a Bachelor of Science in Computer Engineering from Pune University, India.
Interests
Rajesh enjoys spending time with his family, exploring new technologies, and staying physically active outdoors whenever possible.

MUKUL GUPTA

CHIEF SOLUTIONS ARCHITECT

Mukul Gupta as Chief Solutions Architect in involved with conceptualizing, developing and supporting robust and innovative solutions across the portfolio of TISTA’s projects.
Experience
Mukul is a hands on, experienced problem solver who has been involved with large scale and highly performant enterprise software solutions for the past 20 years. He was most recently the Chief Technical Architect of an ERP product built for public sector entities (CGI Advantage ERP). Mukul’s expertise and technical interests include programming languages, distributed computing, data engineering and machine learning applicability, techniques and use cases for line of business applications.
Education
Mukul graduated with a Bachelor of Technology degree from the Indian Institute of Technology, Delhi, India and then earned a Ph.D. degree in Engineering from Drexel University, Philadelphia, PA.
Interests
A history buff who loves to cook and experiment with different cuisines.

HEMA JAGADEESWARAN

VICE PRESIDENT, OPERATIONS & STRATEGY

As the VP of Operations & Strategy, Hema Jagadeeswaran leads a portfolio that spans the Health & FedCiv markets. She plays a leading role in defining and implementing strategies across TISTA's portfolio of programs to drive operational excellence for the organization, support growth capture opportunities, and manage the integration of customer needs with solutions across different domains working with corporate departments and programs.
Experience
Hema Jagadeeswaran has over 24 years of experience in leading and managing within several operational lines of business and a portfolio of Technical Operations, Software Engineering, Quality Assurance, Large System Design and Development, and Strategic Planning. For the past 19 years, her work focused on Federal IT, and managing multiple programs for Centers for Medicare & Medicaid Services (CMS) and US Dept. of Agriculture (USDA). She possesses extensive knowledge of the healthcare industry and is experienced in overseeing the functional and technical aspects of multiple projects with multiple stakeholders and managing healthcare programs and healthcare quality improvement initiatives. She is focused on delivering innovative solutions to streamline client business processes, which include strategic roadmaps, transformation plans, white papers, and presentations.
Education
Hema completed her Master of Computer Science Degree from Madurai Kamaraj University, India, and holds a Bachelor of Science degree from the University of Madras, India.
Interests
Hema enjoys cooking and spending time with her family and has a passion for drawing and painting.

SEAN WARNER

VICE PRESIDENT, OPERATIONS

Sean Warner is an action-oriented leader managing the operations of a portfolio of programs and projects across the CMS, VA and, FedCiv business units. He is instrumental in organizing people and process initiatives working with corporate departments to preserve TISTA’s Associate First, Customer Obsession, and Data-Driven culture.
Experience
Sean has over 25 years of experience working with the Centers of Medicare and Medicaid Services performing a variety of technical tasks from data analytics, quality control, lean management of IT technologies, application development, project management, and customer engagement. He is experienced in managing portfolio-level financials, human resources, assessing talent, and converting customer needs into business solutions.
Education
Sean completed his MBA in Marketing and Bachelor of Science degree in Mathematics from York College of Pennsylvania.
Interests
Sean enjoys spending time with his family, coaching youth soccer, and being a positive role model for kids. He holds a 2nd degree black belt in Taekwondo and enjoys the leadership which comes from the discipline. He enjoys his gardens and the peace of the outdoors.

ULRIKE NASSHAN

VICE PRESIDENT, GROWTH - FEDHEALTH

Ms. Nasshan brings more than 20 years of strategic leadership, advisory and management of modernization efforts at federal government agencies such as the Department of Veterans Affairs (Health IT), Department of Health and Human Services (NIH/AHRQ/ONC) and Department of Education. She has extensive experience leading diverse, high-performing teams in the design and delivery of cost-effective solutions at the project, program and portfolio level following agile and SAFe development processes, including DevOps and cloud migration. Building trusted relationships with senior management and serving as the liaison between business and technical teams promotes the delivery of solutions meeting customer expectations, business value and agencies mission.
Education
Ms. Nasshan completed her MBA in IT Management and holds a Diploma in Adult Education from St. Francis Xavier University in Toronto/Canada.
Interests
Ms. Nasshan enjoys spending time with her family, yoga, traveling, and volunteering.

LAUREN R. LAWRENCE

VICE PRESIDENT

Lauren heads TISTA’s Associate Advocacy programs which support talent in a variety of ways including empowerment and engagement.
Experience
Lauren has over 20 years of talent experience primarily in government contracting and technical professional services. Her strengths include leading HR and talent teams to produce effective programs and strategies that support our talent experience while driving business results. Lauren has extensive experience in developing and implementing creative programs to attract, retain, and engage highly sought-after skillsets in competitive environments. She truly enjoys understanding talent, markets, and business to engage in TISTA’s employee-centric and community-minded culture.
Education
Lauren earned her bachelor's degree in Business Administration from the University of Maryland.
Interests
Lauren enjoys spending time with her family, travel,ing and being outdoors. Lauren and her family also spend time volunteering in their local community.

BRAD TRUXELL

VICE PRESIDENT, CONTRACTS

Brad Truxell leads TISTA’s Contracts and Compliance team responsible for overall cradle to grave contracting, procurement, and overall compliance. Brad is responsible for identifying and mitigating risk, while ensuring the TISTA team meets our contractual and management requirements.
Experience
Brad has over 15 years of contracts experience in contracts management. His experience includes work at large and small businesses’ providing full lifecycle contract management support, negotiating, managing contract performance, vendor management, procurement, and auditing. Brad leverages his strong technical skills and business acumen to work effectively with cross-functional teams and stakeholders to deliver results.
Education
Brad holds a bachelor’s degree from George Mason University.
Interests
Brad enjoys spending time with his family. Brad has recently begun attempting to play golf and enjoys participating in and watching sports.

ELIZABETH MATHEW

VICE PRESIDENT, PORFOLIO OPERATIONS

Elizabeth Mathew is an accomplished IT professional with over 25 years of experience having a remarkable track record of modernizing state and federal government agencies.
Experience
Elizabeth's strategic acumen and technical expertise drive transformative initiatives, modernizing and optimizing TISTA's customer landscape, enhancing productivity and resource allocation for TISTA's Federal clients. She oversees a portfolio of diverse programs and projects with exceptional delivery, operations and (P&L) management, driving successful outcomes on complex projects including infrastructure upgrades, seamless migrations with minimal downtime resulting in improved operational efficiency and client satisfaction.Beyond her operational expertise, Ms. Mathew is passionate about mentorship and invests in the growth of TISTA's Associates, nurturing future generations of technologists and leaders. She fosters an environment of continuous learning and personal and professional development to ensure the company's talent pool remains future-ready.
Education
Masters from the Georgia Institute of Technology (GA Tech)
Bachelors from Georgia State University
Management Training through Emory University
Interests
Ms. Mathew finds joy in spending time with her family and friends, and she values contributing to charitable organizations that give back to the community. She enjoys exploring new places, experimenting with culinary delights, and baking decorative cakes for her children. In addition to being a Yoga/Pilates instructor, she enjoys engaging in sports like Pickleball, Tennis, and running with her 2 German Shepherds.

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