Brian is responsible for the Services, Advisory, and Field Technical Functions in World Wide Technology’s Eastern Operations.

Most recently Brian was responsible for transforming and leading global technical operations, engineering, and architecture for a large UK Based Global Pharmaceutical as part of their Digital
Transformation across Operating Model, Agile Transformation, Infrastructure modernization, Cyber Uplift, Hosting and Cloud Transformation, End User Experience, Service Management, and FinOPs Agile Funding Executive team.

As a Client he also led JPMorganChase’s Global Network Engineering and Operations teams, where
his teams successfully deployed an industry leading private fiber WAN and drove a major global refresh and insourcing effort.

At Cisco Systems, Brian led the global sales and field engineering teams serving their largest clients and launched the Server Entry into those clients, also acting in the role of Corporate Engineering Liaison for all Data Center Products.Brian’s diverse experience and exposure as an executive in large tech companies, founder and leader of startup Tech and MedTech Device companies, advisor to multiple VC Tech companies, and as a non-profit Board member, has provided a unique view of the entire tech landscape including the funding, business, and operational vectors.

A father of 2, avid musician, former marathon runner turned cyclist, reader, and boating enthusiast,
Brian and his wife Mary, reside in the Cleveland Ohio Metro Area.

Ashwin Kohli brings over 30 years of global experience in networking, customer success, and technical leadership. He champions Arista’s customer experience and customer-first culture, driving satisfaction, loyalty, and long-term success. He leads global customer engineering including systems engineering, customer support, and professional services, to scale exceptional customer outcomes.

With a strong focus on innovation and operational excellence, Ashwin leverages data-driven insights to continuously enhance the customer journey. As a trusted advisor to global clients, he builds long-standing relationships that drive product, business and customer value.

Prior to joining Arista in 2011, he was on the customer side and held senior infrastructure leadership roles at BNP Paribas, Merrill Lynch, and ABN AMRO, where he led large-scale global networking engineering and operations.

He holds a BSc in Computer Science and Accounting from Manchester University, United Kingdom.

As Technical Director, Aryo Kresnadi is responsible for setting network architecture strategies, futures and solutions for FedEx Global Enterprise Network supporting all FedEx information movement to ensure on-time delivery for all FedEx packages.

Current responsibility includes research and development of architecture, design and implementation of the next-generation network for FedEx data center, multi-cloud, and edge network for the FedEx field locations to support next-generation sensors, robotics, artificial intelligence and machine learning capabilities.

Aryo holds a Bachelor’s Degree in Electrical Engineering (BSEE) from Ohio State University and a Master of Science degree in Electrical Engineering (MSEE) from University of Pittsburgh. Aryo is currently based in Collierville, TN, the home of FedEx World Technology Center.

Raj Purkayastha is a seasoned technology and telecom leader with more than 25 years of experience spanning pre sales, business development, marketing, and delivery across enterprise and international telecom markets in both mature and emerging regions. As Vice President at Tata Communications, he leads the Pre Sales (Sales Engineering) organization for the Americas, partnering with large enterprises to shape their innovation and growth strategies. In this role, Raj works closely with CIOs and technology leaders to co create solutions that modernize digital infrastructure, simplify complexity, and accelerate what comes next for their businesses.
Throughout his tenure at Tata Communications, Raj has held multiple leadership roles across regions and business lines including Global Carrier Solutions and Enterprise Solutions, consistently delivering revenue growth, profitability, and top tier employee engagement results. He previously led India Pre Sales and served as the Global Head of Product Marketing where he helped translate complex technologies into compelling stories and customer facing narratives that drove product adoption and strengthened the company’s market presence.
Raj is deeply passionate about innovation and has expertise across technologies such as drone navigation, robotic process automation, and Internet systems. He is a patent holder with additional patents pending, and his research has been published across several emerging technology domains. At Tata Communications, he spearheaded the development of the company’s Work from Home solution stack during the COVID 19 pandemic, using internal IP to rapidly support customers’ evolving digital workspace needs. He has also led key digital transformation initiatives in retail, manufacturing, and other industries, helping enterprises adopt agile, resilient, and future ready architectures. Raj’s global impact includes leading a major country wide telecom transformation program for a government in Southern Africa that significantly expanded national network reach, improved affordability, and strengthened digital capability. His customer engagement philosophy focuses on delivering strategic points of view and thought leadership that help organizations rethink what is possible and reinforce Tata Communications’ leadership in critical markets.
Additionally, Raj has filed 6 Patents in areas of AI, Edge, Drones, RPA and Internet. 3 of these are already awarded to him.

James Walker is a technology executive, inventor and entrepreneur with more than 30 years’ experience building and transforming technology platforms for some of the world’s largest enterprises.

Most recently, he served as Chief Administrative Officer of DXC Technology, with responsibility spanning global operations, corporate services and IT. Previously, he held senior technology and transformation roles at IBM, JPMorgan, Credit Suisse, Bank of America, and Walt Disney Studios.

His work has ranged from large-scale networks, cloud infrastructure and enterprise transformation to cloud economics and the practical adoption of artificial intelligence. He is now focused on applying AI and agentic software engineering to enterprise technology, developing new software products and pursuing a portfolio of inventions and patents.

Justin van Schaik is a seasoned thought leader and subject matter expert on high-performance networks. He is an individual contributor on World Wide Technology’s AI initiatives and has over 30 years of experience in both generalized enterprise architecture and focused low-latency design.

Prior to joining WWT in 2013, he spent almost 20 years on Wall Street with various banks, hedge funds, and electronic trading firms. He is also a combat veteran and served in the US Army.

Justin is an empty-nester and is currently enjoying not driving his children everywhere. He also once managed to cut his thumb on a banana.