Lead Fraud Strategy Analyst

Turning analytics into shipped controls that save millions

Fraud, risk, and product strategy across Toast, Amazon, ShareChat & Grail. Hands‑on with SQL, Python, BI — partnering with Product, Eng, Ops & Compliance.

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Bengaluru, India • Open to collaboration & product/analytics conversations

Experience

Lead Fraud Strategy Analyst — Toast

May 2024 – Present • Bengaluru
  • Launched merchant‑level risk model with 56.4% recall and 0.76% alert rate; ~$6.03M blocked post‑flag.
  • Post‑auth AVS × Sift rules cut cohort chargebacks ~87% vs Mar peak while keeping declines stable.
  • Re‑architected keyed‑entry controls: 7 thresholds across 12 cohorts; enabled ~11,938 restaurants by Sep 2025.
  • Unlinked Refund Monitoring (>$250) with SOP + Hex workflow; ~$70k blocked (Feb–Sep 2025).
  • Suspicious DBA screening with cosine similarity; 499 alerts at ~19% PPV; governance & audit built‑in.

Senior Product Analyst — ShareChat

Mar 2022 – Aug 2023 • Bengaluru
  • Owned analytics charter end‑to‑end across ops, product, engineering, legal & design.
  • Built profile trust score; 30% reduction in post‑moderation costs; discard recall up 60% → 80%.
  • Partnered with DS to enhance NSFW detection & in‑house OCR; led SQL‑driven investigations.
  • Identified & solved OTP fraud spikes (−95%).

Analyst, Research — Grail Insights

Jun 2020 – Oct 2021 • Bengaluru
  • Promoted in 6 months; improved payments QA accuracy from 86% → 98.8% using SQL.
  • Built Access tools, designed databases, and streamlined QA/QC.
  • Power BI dashboards & insights at scale; SME for AML/KYC/TM.

Transaction Risk Investigator — Amazon

Oct 2017 – Jun 2019 • Bengaluru
  • Specialized in fraud mitigation for Amazon Payments; SQL/Tableau dashboards for patterns.
  • Filed SARs to FinCEN & UK NCA; identified patterns saving >$100k.
  • Trained a batch of 6 investigators.

Core Competencies

Fraud & Risk Strategy
Product Analytics & Experimentation
SQL, Python, BI (Tableau/Power BI)
Operational Efficiency & Automation
Stakeholder Engagement & Governance
Project Management (Lean Six Sigma)

Selected Impact

$6.03M+
Blocked post‑flag
~87%
CB reduction (cohorted)
0.76%
Alert rate (Hourly)
11,900+
Restaurants enabled

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Contact

Want to collaborate or discuss fraud strategy & product analytics? Quick actions:

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Email: engineerdiganta@outlook.com
LinkedIn: linkedin.com/in/digantadey
Location: Bengaluru, Karnataka, India
Resume: Download PDF
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