10 WEX engineering leaders
Chief Technology Officer, senior vice president and vice president of engineering are among the current titles held by these WEX engineering leaders, with roles covering product, infrastructure, benefits and payments engineering. A reader can learn how engineering leaders work at WEX from people who have held the role.
Professionals to explore
Ashish Arora
LinkedInExperience: VP of Engineering, International Mobility and Payments · WEX
Ashish Arora has been VP of Engineering, International Mobility and Payments at WEX since May 2025, a role the profile places in Bengaluru, India. Ashish Arora was CTPO at Zolve in 2025, Site Lead and Head of Technology, UBank India at Ubank from 2024 to 2025 and VP of Engineering at Swiggy from 2019 to 2023.
Bill Mayhew
LinkedInExperience: VP, Benefits Engineering · WEX Benefits
Bill Mayhew has been VP, Benefits Engineering at WEX Benefits since April 2024, a role the profile places in Chicago, Illinois. Bill Mayhew was VP, Platform Modernization and Consolidation at WEX from 2022 to 2024 and Chief Technology Officer at WEX Benefits from 2001 to 2022.
Gyan Trivedi
LinkedInExperience: Vice President of Engineering · WEX
Gyan Trivedi has been Vice President of Engineering at WEX since October 2024, based in Redmond, Washington. Gyan Trivedi lists a Senior Director of Engineering row at Microsoft from 2020 to 2024, and was Senior Director, Global Infrastructure Engineering, Visa Inc. at Visa from 2014 to 2020.
Lisa O'Brien
LinkedInExperience: Former VP Technology & Innovation, Head of Office of the CTO · WEX
Lisa O'Brien is a former VP Technology & Innovation, Head of Office of the CTO at WEX, a role held from December 2021 to May 2024, and has been VP Technology & AI Engineering, Head of Office of the CTO at Worldpay since May 2024. At WEX, Lisa O'Brien was also Head of M&A Integration from 2018 to 2021 and Director, Enterprise Technology from 2016 to 2018.
Mohamed M. Battisha
LinkedInExperience: VP of Engineering · WEX
Mohamed M. Battisha has been VP of Engineering at WEX since March 2025, and the profile headline names Enterprise Data & AI Platforms. Mohamed M. Battisha was Chief Technology Officer - National Center for AI at SDAIA from 2023 to 2024, VP of Engineering at Salesforce from 2022 to 2023 and Director of Engineering at LinkedIn from 2017 to 2022.
Prashant Desale
LinkedInExperience: SVP, Global Product Engineering · WEX
Prashant Desale has been SVP, Global Product Engineering at WEX since April 2026 and holds an SVP and Head of Engineering - Health and Benefits row at WEX dated from September 2024 with no end date. Prashant Desale was Senior Vice President - Global Operations at Visa from 2021 to 2024 and Vice President - Engineering at Visa from 2014 to 2021.
Sachin Dhawan
LinkedInExperience: Chief Technology Officer · WEX
Sachin Dhawan has been Chief Technology Officer at WEX since December 2023, a role the profile places in San Francisco, California. Sachin Dhawan was Chief Technology Officer at Stitch Fix from 2022 to 2023, SVP Infrastructure & Operations at Visa from 2019 to 2022 and SVP, CTO at Blackhawk Network from 2016 to 2018.
Sumit Amar
LinkedInExperience: Vice President of Engineering · WEX
Sumit Amar has been Vice President of Engineering at WEX since April 2024, based in the Greater Seattle Area. Sumit Amar was Sr. Manager, Software Dev at Amazon from 2020 to 2024, Sr. Director - Engineering, Architecture, Product at Visa in 2020 and Sr. Director - Engineering at Visa from 2015 to 2020.
Taranjit Singh Lamba
LinkedInExperience: SVP, Technical Fellow - Corporate Payments · WEX
Taranjit Singh Lamba has been SVP, Technical Fellow - Corporate Payments at WEX since December 2025. Taranjit Singh Lamba was Chief Architect at Marqeta in 2025, VP Product/Engineering at Marqeta from 2024 to 2025, Fellow Engineer at Marqeta from 2022 to 2024 and Distinguished Engineer at Blackhawk Network from 2017 to 2022.
Terry DelMonte
LinkedInExperience: VP, Global Infrastructure Engineering · WEX
Terry DelMonte has been VP, Global Infrastructure Engineering at WEX since June 2018, based in Portland, Maine. At WEX, Terry DelMonte was also Senior Director, Global Infrastructure Engineering from 2017 to 2018 and Director, M&A Integration and Global Customer Service from 2016 to 2017, and earlier rows show director roles at Unum.
Choose the right perspective
Match the person's area, such as infrastructure, product engineering or a single business line, to the question you bring. Check whether their WEX role is current or past before asking how the work is done there today.
Questions to take into the conversation
- 01What did you focus on first when you took on your current engineering leadership role?
- 02How have you organized the engineering groups you lead, and what would you change next time?
- 03What have you learned about bringing engineering teams onto shared platforms?
Reaching WEX engineering leaders
How can I contact one of these WEX engineering leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 2 companies: WEX and WEX Benefits, based on profile data retrieved on October 26, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach WEX engineering leaders?
You choose the offer, starting at $5 per person. The offer is what the person receives, and Instant Expert's fee is added on top, so a $100 offer costs you $125. The fee is 20% of what you pay. You're charged only when the person books the call or sends the answer.
What if they don't reply?
You pay nothing. Instant Expert sends follow-up reminders, and if the person hasn't booked or answered within 7 days, the request expires and any hold on your card is released. You can invite several of the 10 people on this list at once and cap your total spend, so you pay only for the ones who accept.
Can an AI agent ask one of these WEX engineering leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.