Sahil Sagar profile photo 1 on Tal

Sahil Sagar

Chief Information and AI Officer

New York

8+ years of work experience

Greystone
Jun 20261 moPresent

New York, New York, United States

Leading the technology and AI enablement of the business.
Tres Monos Capital
Jan 20206 yrs 6 mosPresent

Remote

We back founders who believe in victory but understand its transience — guided by ethics, integrity, and the communities they serve. https://tresmonos.capital/
Citi
Jun 20251 yrMay 2026

New York, United States

AI at scale • Led the global strategy and execution of AI and Shared Operational Platforms for Citi's Services business. • Enhanced service delivery across the organization by driving product management initiatives focused on operational efficiency. • Established governance frameworks to ensure compliance and risk management, fostering a culture of innovation.
Citi
Jan 20241 yr 6 mosJun 2025

New York City Metropolitan Area

Expanded role to lead the Engineering and Architecture for the services organization. This also includes all the shared business services around generative AI, streaming /data platforms and transformation programs.
Citi
Oct 20221 yr 5 mosFeb 2024

New York City Metropolitan Area

Leading the Engineering, Architecture and Shared Technology for Trade and Treasury business for citi. Globally responsible for horizontal technology initiatives across the business including shared services delivery and messaging platforms.
Amazon Web Services (AWS)
Feb 20229 mosOct 2022

New York City Metropolitan Area

Moved into this broader role to aid critical company clients with global resiliency and modernization needs. Building and managing a team of principal engineers creating patterns for high resiliency and global deployments. • Rollout global deployment architecture patterns for financial and other regulated industries to ensure they met and exceeded resiliency requirements on public cloud. • Change culture and technology side of company through collaboration with clients; focus on building diverse teams for equal community representation. • Enhance staff development and performance by recruiting, training, building, and mentoring team of principal level engineers.
Amazon Web Services (AWS)
Dec 20192 yrs 3 mosFeb 2022

New York City Metropolitan Area

Leading the Worldwide architecture team across the industrial verticals. The focus areas being solving industry use cases by investing in AI/ML, IOT, Smart Factory and low latency device connectivity. The industrial focus areas are 1. Manufacturing 2. Automotive. 3. Semiconductors 4. Mining 5. Aerospace. Responsible for thought leadership and key solution development in industries.
Capital One
Jul 20181 yr 6 mosDec 2019

New York City Metropolitan Area

Tapped to oversee the data platform engineering and product teams comprised of 150+ members. • Established enterprise data platform providing discovery, storage, and consumption of data to entire company. • Fueled data insights through utilization of Machine Learning models at petabyte scale and directed 1st successful and 1 of the biggest financial services data lake implementations on AWS cloud. • Played major role in boosting cultural change to iterative development and continuous delivery across platform organization. • Bolstered staff development/performance by recruiting new and re-skilling existing team members.

Education

Harvard Business School

Advance Management Program (AMP207), Business Administration and Management, General

Harvard Business School

20242024
Harvard Business School

Executive Education, Organizational Leadership

Harvard Business School

20152015

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Headline

Chief Information and AI Officer

About

As Global Head of AI and Operational Platforms for Citi's Services businesses—Trade, Treasury, Issuer Services, and Investor Services—I lead enterprise-scale artificial intelligence transformation across one of the world's largest financial institutions. I direct global teams spanning engineering, product management, and operations while managing multi-million dollar budgets. My mandate: deploy generative AI and modernize operational platforms to deliver measurable business impact across multi-billion-dollar operations. With 20+ years of progressive leadership in financial services technology, I've built a track record of translating complex business strategy into technical solutions that drive revenue growth, operational efficiency, and competitive advantage. What I Do AI & Machine Learning Leadership – Spearheading enterprise-wide generative AI programs, including large language models (LLMs), AI governance frameworks, and responsible AI implementation in regulated environments. Driving adoption of AI/ML solutions that transform client service delivery and operational workflows. Platform & Infrastructure Modernization – Leading cloud migration, API architecture, and shared services transformation. Building scalable technology platforms that support current operations while enabling future innovation. Global Technology Leadership – Building and scaling high-performing, diverse teams across Americas, EMEA, and APAC. P&L ownership with proven ability to deliver. Core Expertise Generative AI • Large Language Models (LLMs) • Machine Learning • Enterprise AI Governance • Cloud Architecture (AWS, Azure, GCP) • Data Platforms & Analytics • Digital Transformation • Agile & DevOps • Product Management • Financial Services Technology • Regulatory Compliance & Risk Management • Global Team Leadership • P&L Management • Change Management My leadership philosophy: marry strategic vision with operational discipline. I build teams and platforms that don't just respond to technological disruption—they drive it. Whether implementing cutting-edge AI capabilities or modernizing legacy infrastructure, I focus on sustainable solutions that deliver quantifiable business outcomes.

Location

New York

Work experience

Chief Information and AI Officer at Greystone, Jun 2026 - Present · 1 mo, New York, New York, United States, Leading the technology and AI enablement of the business.

Partner at Tres Monos Capital, Jan 2020 - Present · 6 yrs 6 mos, Remote, We back founders who believe in victory but understand its transience — guided by ethics, integrity, and the communities they serve. https://tresmonos.capital/

Global Head of AI and Operational Platforms - Services Business at Citi, Jun 2025 - May 2026 · 1 yr, New York, United States, AI at scale • Led the global strategy and execution of AI and Shared Operational Platforms for Citi's Services business. • Enhanced service delivery across the organization by driving product management initiatives focused on operational efficiency. • Established governance frameworks to ensure compliance and risk management, fostering a culture of innovation.

Managing Director - Global Head of Engineering and Architecture for Services Business at Citi, Jan 2024 - Jun 2025 · 1 yr 6 mos, New York City Metropolitan Area, Expanded role to lead the Engineering and Architecture for the services organization. This also includes all the shared business services around generative AI, streaming /data platforms and transformation programs.

Managing Director - Global Head of Engineering, Architecture and Shared Technology for TTS at Citi, Oct 2022 - Feb 2024 · 1 yr 5 mos, New York City Metropolitan Area, Leading the Engineering, Architecture and Shared Technology for Trade and Treasury business for citi. Globally responsible for horizontal technology initiatives across the business including shared services delivery and messaging platforms.

Leader - Resilient Engineering & Architecture at Amazon Web Services (AWS), Feb 2022 - Oct 2022 · 9 mos, New York City Metropolitan Area, Moved into this broader role to aid critical company clients with global resiliency and modernization needs. Building and managing a team of principal engineers creating patterns for high resiliency and global deployments. • Rollout global deployment architecture patterns for financial and other regulated industries to ensure they met and exceeded resiliency requirements on public cloud. • Change culture and technology side of company through collaboration with clients; focus on building diverse teams for equal community representation. • Enhance staff development and performance by recruiting, training, building, and mentoring team of principal level engineers.

Head of Worldwide Solutions Architecture, Industrial Verticals at Amazon Web Services (AWS), Dec 2019 - Feb 2022 · 2 yrs 3 mos, New York City Metropolitan Area, Leading the Worldwide architecture team across the industrial verticals. The focus areas being solving industry use cases by investing in AI/ML, IOT, Smart Factory and low latency device connectivity. The industrial focus areas are 1. Manufacturing 2. Automotive. 3. Semiconductors 4. Mining 5. Aerospace. Responsible for thought leadership and key solution development in industries.

Senior Director - Data Engineering at Capital One, Jul 2018 - Dec 2019 · 1 yr 6 mos, New York City Metropolitan Area, Tapped to oversee the data platform engineering and product teams comprised of 150+ members. • Established enterprise data platform providing discovery, storage, and consumption of data to entire company. • Fueled data insights through utilization of Machine Learning models at petabyte scale and directed 1st successful and 1 of the biggest financial services data lake implementations on AWS cloud. • Played major role in boosting cultural change to iterative development and continuous delivery across platform organization. • Bolstered staff development/performance by recruiting new and re-skilling existing team members.

Education

Advance Management Program (AMP207), Business Administration and Management, General, Harvard Business School

Executive Education, Organizational Leadership, Harvard Business School

Sahil Sagar - Chief Information and AI Officer in New York | Tal