UJJAWAL KUMAR SINGH / FRAUD ANALYST

I analyze data to prevent fraud.

Fraud Analyst specializing in transaction risk assessment, chargeback management and behavioral analysis. I protect businesses from financial loss while helping genuine users pass through.

View case studies ↓ Download résumé ↘

~12/hrHigh-risk transactions reviewed

<1%Chargeback rate maintained

>95%Quality score maintained

3 rolesCustomer operations to fraud analysis

02 / KEY DISCOVERIES

Patterns found. Loopholes closed. Loss prevented.

Two anonymized professional investigations showing how I move from a weak signal to a defensible finding. Client names and proprietary rules are intentionally excluded.

CASE 01 / 02

The “Long-Haul” Seller Scheme

MERCHANT FRAUD · HIGH IMPACT

01 — SIGNAL

A cluster of seller accounts paired high-value decoy listings with unusually long 6–8 week processing windows, using platform boosts to aggregate orders before shipping deadlines.

02 — INVESTIGATION

I connected “Item Not Received” chargebacks to extended shipping windows, then used OSINT reverse-image search to establish that product imagery had been scraped.

03 — OUTCOME

The investigation led to a targeted sweep and the suspension of hundreds of fraudulent accounts, preventing further financial loss.

CHARGEBACK ANALYSISOSINTLINK ANALYSISMERCHANT RISK

CASE 02 / 02

The Authentication Loophole

ACCOUNT TAKEOVER · CRITICAL

01 — VULNERABILITY

Recovery questions depended on answers visible inside the account dashboard, including recent order details. An attacker with access could reuse that information to pass an appeal.

02 — PROPOSAL

I proposed external knowledge-based authentication using the account creation date — retrievable by a legitimate owner from private email, but not exposed inside the compromised account.

03 — OUTCOME

The logic change sharply filtered malicious actors during appeals, closing the recovery loop and reducing repeat abuse.

ACCOUNT TAKEOVERRECOVERY CONTROLSROOT-CAUSE ANALYSISPROCESS DESIGN

03 / ABOUT

Customer context became my fraud advantage.

I began in customer support, learning how real people explain messy situations. That experience sharpened my judgment when I moved into fraud prevention and risk management. Today at TELUS Digital, I protect transaction security for high-volume clients, investigate anomalies and handle complex disputes.

Fraud DetectionTRANSACTION REVIEW

SQL / ExcelADVANCED

Chargeback ManagementEND-TO-END

Ekata & AccertifyINVESTIGATION

Risk AnalysisBEHAVIORAL

VBA AutomationFUNDAMENTALS

04 / EXPERIENCE

From customer operations to transaction defense.

OCT 2024 — PRESENT

Fraud Analyst

TELUS DIGITAL

Review approximately 12 high-risk e-commerce transactions per hour while maintaining a chargeback rate below 1% and quality scores above 95%.
Analyze historical behavior, location and multi-signal risk patterns; represent chargebacks with issuing and acquiring banks.
Earned multiple Performer of the Month awards for sustained performance.

MAY 2022 — MAR 2024

Fraud Analyst (Billing & Transaction Risk)

TECH MAHINDRA

Resolved billing-related queries through chat support while adhering to SLA standards.
Built strong conflict de-escalation and written communication skills.

JAN 2022 — MAY 2022

Customer Care Officer

DHANI HEALTHCARE

Managed customer service operations primarily over email.
Took end-to-end ownership of customer complaints.

05 / EDUCATION

The technical foundation.

2017 — 2020

Bachelor of Computer Applications

Intellectual Institute of Management and Technology

2014 — 2016

Higher Secondary

Arya Vidyapeeth College

PASSED 2014

Matriculation

GM English High School

06 / OUTSIDE THE QUEUE

Observation, pattern recognition and patient play.

Photography keeps my eye trained on details; chess keeps my decisions deliberate. Both sharpen the same instincts I bring to investigations.

PHOTOGRAPHY

Frames worth keeping

A growing collection of moments, light and details that made me stop. Select any photograph to see it full size.

CHESS

Thinking in positions

Practical games, favorite wins and the positions that rewarded one more careful look.

singhujjawalCHESS.COM PROFILE

RECENT GAMES

Loading the latest public games from Chess.com…

07 / CONTACT

Looking for a reviewer who can explain the “why” behind the decision?

I’m open to Fraud, AML and Disputes roles across Delhi NCR and remote. Let’s talk about the team, the queue and the problems you need solved.

EMAILxeanuzz@gmail.com PHONE+91 86384 97065 LINKEDINView profile