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Sai Yallabandi

@saiyallabandi

I lead real-time card fraud detection, risk decisioning, and merchant risk controls.

India
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At ONTOP, I lead card fraud operations across real-time transaction decisioning, merchant risk management, chargebacks, and suspicious activity reporting. I investigate complex incidents including card testing, velocity spikes, automated BIN attacks, and compromised BINs while strengthening monitoring rules and merchant blocks.

I've managed fraud analyst performance through 1:1 reviews, SLA monitoring, hiring, onboarding, and coaching on fraud pattern recognition and case quality. I also apply tiered monitoring rules for high-value transactions, request verification documentation, and make risk-based account and transaction decisions.

Previously at Amazon, I conducted manual fraud reviews for account takeover, payment fraud, coupon abuse, synthetic identities, and business risk. I validated customers through AVS checks, IP analysis, billing and shipping verification, online presence research, and business account signals.

My fraud investigation foundation began at Wipro supporting Google Wallet, where I monitored suspicious transactions, account hijacking, chargebacks, refunds, and credit risk exposure. I use fraud analytics, data visualization, and AI-informed fraud risk assessment to reduce false positives while maintaining strong fraud catch rates.

Experience

Work history, roles, and key accomplishments

Education

Degrees, certifications, and relevant coursework

GU

Gayatri Vidya Parishad of PG and Degree Courses, Andhra University

Bachelor of Business Administration, Finance and Marketing

2015 - 2018

Grade: 7.5 CGPA

Pursued a Bachelor of Business Administration with a focus on Finance and Marketing, achieving a CGPA of 7.5.

MC

MasterMinds Junior College

Intermediate, MEC

2013 - 2015

Grade: 88.8%

Completed Intermediate education in the MEC stream with a score of 88.8%.

SS

Sri Vani Convent & High School

Secondary School Certificate, General

2012 - 2013

Grade: 9.3 GPA

Completed 10th standard with a GPA of 9.3.

Tech stack

Software and tools used professionally

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