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use-cases. Meta is a multinational technology conglomerate that owns and operates Facebook, Instagram,
Threads, and WhatsApp, among other products and services. It is one of the ten largest publicly traded
corporations in the U.S. and is considered one of the Big Five U.S. information technology companies. Before my
leadership role with Meta, I was a Vice President with Goldman Sachs in Salt Lake City, UT and a Manager,
Machine Learning with Dell in Phoenix, AZ. My career has spanned more than a decade and has centered around
building distributed systems and scalable machine learning. Areas of expertise of mine include software
engineering and management, cloud architecture, big data management and strategy, data security and
management, and continuous deployment and integration.
In addition to my experience, I am well-educated, holding a Master of Science degree in Business Analytics and
Project Management from the University of Connecticut School of Business and a Bachelor of Technology in
Computer Engineering from the National Institute of Technology Karnataka in India.
Based on my more than decade of experience in the industry and high level of education, and my observation of
Mr. Tiwaris career, I am expertly qualified to speak to his extraordinary ability in digital banking and financial
services.
First, I am aware of Mr. Tiwaris participation as a judge of the work of other professionals in the field through his
participation in the Expert evaluation committee at Meta for validation and evaluation of generative AI (Artificial
Intelligence) applications across Metas payment products and payment settlement systems, as they released
llama and llama2 models. Mr. Tiwari evaluates the underlying variable, development architecture and domain
policies of the AI models across Payment applications. His deep understanding of Payment flows and associated
dependencies helps Meta make decisions on associated changes and choices around model specific choices. He
had been part of the evaluation committee for last 2 years.
I am also aware of Mr. Tiwaris membership in Metas AI for Payments Panel, an organization in the field that
requires outstanding achievement of its members, as judged by recognized national or international experts in
their field.
Mr. Tiwari has an exceptional reputation in the industry, as evidenced by his participation as a judge of the work
of others in his field and his membership in an organization that requires outstanding achievement of its
members . There is no question in my mind that Mr. Tiwari is an individual who has risen to the top 1-2% of
experts in his field. His unique contributions to digital banking and financial services on a widespread scale make
him a critically important source of change and disruption in the field. He personifies an individual of
extraordinary ability and I wholeheartedly endorse him for that visa classification.
Sincerely,
Raghvendra Singh
Machine Learning Engineering Leadership (Financial Services Applications)
Meta
New York, NY
Phone: 6507044652
Email: raghparihar@meta.com
31 October 2023
U.S Department of Homeland Security
U.S. Citizenship and Immigration Services
Dear Sir/Madam
RE : Sid Tiwari
Sid let me know that he is applying for a green card, and I am writing to provide some input on his expertise.
I have known Sid for a number of years, our first meeting being several years ago when we were petitioning various
companies for expertise on a "payments platform of the future. Sid was clearly the expert on the McKinsey team and
gave multiple presentations representing his company on how to imagine such a platform. Sid was clearly an expert
in the realm of the payments ecosystem. He has had a good amount off experience in consulting, banking and
technology, and is able to offer advice and expertise on building or improving service offerings, using a set of
financially and regulatory compliant and innovative solutions to ensure that the product offering is cutting-edge and
controlled in all the right ways.
My name is Debra Ameerally, and I am currently a director on the AIML organization at Apple Inc. I have previously
worked in Payments for several years here at Apple. I am a seasoned e-commerce professional, with broad expertise
and experience in online commerce, including analyses and strategy, with a strong IT background in large corporate
systems.
I would not hesitate to recommend Sid as a thought leader in the field of payments/financial services/digital banking.
He is very capable and leaves no stone unturned once he dives into a project. He thinks through all aspects of a
problem to provide the best long-term solutions.
On a personal note, I have always found Sid to be an upstanding character, with lots of integrity and a kind and
generous nature. He has become a great friend. He would be an asset to any community.
Please do not hesitate to let me know if I can answer any questions for you regarding Sids work with us. Much of our
work is confidential, but I may be able to answer at a general level. You can contact me by email or phone; I attach
my contact information in the signature below.
Best regards,
Debra Ameerally
Director AI/ML
Apple Inc.
Cellphone : +1-408-368-7872
Email : Debra@apple.com