Sunnyvale, California · Open to bold problems

Transforming AI ambition into measurable product impact.

I’m Sirshendu Maiti, a Senior Staff Data Science Manager at Google Search. I lead teams of managers and senior research data scientists shaping the measurement, experimentation, and evaluation strategies behind Agentic Search and AI Mode. My organization partners across Product, Engineering, Research, and UX to guide high-stakes product and launch decisions.

Previously, I held data science and analytics leadership roles at Meta, eBay, Barclays Bank and Citigroup.

Sirshendu Maiti
What I believe Agentic AI will redefine how people search, decide, and act online
What I lead Agentic Search · AI Evaluation · Measurement Strategy · Experimentation
Career Trajectory From Statistical Rigor to contributing to the Future of AI
Early Career Citi
Citigroup
Risk Analytics
Banking Rigor Barclays
Barclays Bank PLC
Financial Modeling & Forecasting · Monte Carlo simulation model for Valuation
Scaling Tech ebay
eBay Marketplace
Experimentation · Variance Reduction techniques in A/B Testing
Advanced Rigor Meta
Meta
Causal Inference & Bayesian Testing · News Feed Integrity · 1P Ads Optimization
Current Google
Google
Agentic Search · Human & AI Evaluation · AI Search Experimentation Metrics
Domain Expertise
Search Metrics Experimentation Causal Inference Human & AI Evaluations Prompt Engineering Bayesian & Sequential Testing Time-Series Forecasting Risk Analytics Statistics People Management

ORGANIZATIONAL LEADERSHIP & STRATEGIC CHARTER

Head of Data Science, Agentic Search & Real-World Journeys

Dedicated research, analytics, and evaluation organization supporting Google’s next-generation AI Search experiences. Our team empowers product, engineering, and UX leadership with actionable insights, innovative metric development, rigorous causal experimentation, and comprehensive human-and-AI evaluation systems.

BUSINESS IMPACT

Building the Systems Behind High-Stakes AI Decisions

Here are some of the initiatives I’m proud to have led with my teams — transforming ambitious AI ideas into trusted products and measurable impact.

01

Research, Measurement & strategy

Defining how Agentic Search is measured and evaluated

Contributing to development of next-generation of Agentic experiences on Google Search

Leading Data Science strategy for emerging Agentic Search experiences , building the measurement and evaluation systems needed to assess how effectively Search helps people navigate complex, multi-step tasks and move from discovery to action.

Developed an integrated framework spanning experimentation, behavioral signals, user satisfaction, and human-and-AI evaluation to define product quality, quantify user value, and identify opportunities for sustainable growth. Partnered with Product, Engineering, Research, and senior leaders to guide product priorities, evaluate experience quality, and enable evidence-based decisions at scale.

Metrics Established multidimensional quality frameworks spanning helpfulness, relevance, factuality, and groundedness eval metrics, providing teams with a more complete view of user value.

Research Advanced research into how users perceive value in complex AI-assisted journeys and how successful task outcomes can be evaluated consistently.

Agentic AIMeasurement & Evaluation0-to-1 Product StrategyExperimentationExecutive Communication
02

Experimentation & Metrics Research

Reframing success metrics for AI-Native Search

Building a decision framework for next-generation AI Search

A fundamental shift from traditional search results to an AI-orchestrated experience made existing Search engagement and quality metrics difficult to interpret. Changes in user behavior could reflect genuine product quality or simply novelty, change aversion from habits formed around the previous experience. We led the development of a new measurement framework that enabled fair comparisons across fundamentally different product experiences. The approach combined meaningful interactions, satisfaction signals, and human quality evaluations into decision-ready launch criteria. Partnering across Product, Engineering, UX Research, and evaluation teams, we established validation methods and metric priorities that helped leadership distinguish durable user value from transitional behavior and make more confident launch and investment decisions.

Key Impact Reframed measurement for next-generation AI Search by unifying engagement, satisfaction, and human-quality signals to distinguish durable user value from adaptation effects enabling confident launch and investment decisions.

Causal inferenceA/B testingDecision ScienceAI Search Metrics Innovation
03

AI Mode & Product Strategy

AI-Powered Finance: Reimagining Google Finance with AI

Advancing Finance AI respose quality through meta-prompting

Led Google’s effort to transform Google Finance into a personalized daily destination for investors—combining high-quality data, live news feeds, and advanced AI-powered research tools. Directed the data science roadmap and evaluation architecture for the Research Panel, the integration of AI Mode into current Google Finance experience. This executive-level product priority, designed for active investors, has now launched globally.

Led the development of a novel meta-prompting framework that transformed Finance AI responses into concise, contextual, and data-driven financial analysis — shaping both the product experience and its quality-evaluation strategy.

Key Impact Our approach resulted in a more sophisticated production prompt that transformed Finance Hub AI’s persona into an expert financial analyst.

AI ModeMeta-promptingHuman EvaluationPrompt-Engineering

Leadership philosophy

Rigor builds confidence. Leadership creates momentum.

I trained as a statistician at the Indian Statistical Institute (Kolkata), where I learned to challenge assumptions, find signal in complexity, and make decisions grounded in evidence.

I’m a future-forward, results-driven leader and a committed coach to managers and technical leaders. I lead beyond the analysis—setting direction, aligning teams around consequential product outcomes, and building the measurement systems and leadership capacity required to deliver at scale.

My goal is simple: empower organizations that make better decisions, execute with velocity and conviction, and create lasting product impact.

AI & Data Science Leadership Organizational Leadership People Management Leadership Multiplication Statistical Rigor High-velocity Decisions
01

Set direction

Define the customer problem, the decision, and what success means.

02

Create strategic alignment

Align data science roadmap directly with product goals— unite teams around shared outcomes, priorities, and trade-offs.

03

Build for scale

Turn insights into repeatable systems, operating mechanisms, and decision frameworks.

04

Multiply leadership

Develop managers and technical leaders who can drive outcomes independently.

05

Prioritize ruthlessly

Invest in the few initiatives that create the greatest customer and organizational leverage.

06

Stay agile

Move with speed, learn from evidence, and adapt the strategy based on user needs, technology shifts, and evolving market conditions.

Education

Indian Statistical Institute (ISI), Kolkata

One of India’s premier institutions, globally recognized for its contributions to statistics, quantitative research, and data science.

Master of Statistics | 2004–2006

Bachelor of Statistics | 2001–2004

QUANTITATIVE FOUNDATION

Regression & Machine Learning Multivariate Analysis Linear Algebra Probability Theory Statistical Decision Theory Optimization Research Time-Series Analysis Survival Analysis Stochastic Processes Game Theory Actuarial Modeling Experimental Design Statistical Inference

The Indian Statistical Institute (ISI) was founded in 1931 by Prasanta Chandra Mahalanobis, widely known as the "Father of Indian Statistics" for introducing the Mahalanobis Distance and pioneering large-scale sample surveys. Read his official biography here .

ACADEMIC DISTINCTION

Two-Time Indian National Mathematical Olympiad Finalist · 1997 & 1999

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