IJAZ E
@ijaze
Data Scientist specializing in fraud detection and prevention strategies.
What I'm looking for
I am a dedicated Data Scientist with a strong background in fraud detection and prevention strategies, currently working at Tata Digital. My journey began with a 5 Year Integrated M.Sc from IIT Kharagpur, where I honed my analytical skills and developed a passion for data-driven decision-making. I have successfully designed and implemented various fraud prevention strategies that have significantly reduced fraud rates in high-volume transactions.
At Tata Digital, I have led initiatives that resulted in a remarkable reduction of the fraud-to-sales ratio from 10% to 0.5%. My experience includes developing advanced models for suspicious transaction detection and collaborating with cross-functional teams to enhance fraud detection capabilities. I take pride in my ability to create comprehensive dashboards that track key fraud risk metrics, ensuring that our strategies are both effective and transparent.
Throughout my career, I have been recognized for my contributions, including receiving Simpl's 2023 Annual Award for my commitment to swift and decisive action. I thrive in dynamic environments where I can leverage my technical skills in Python, SQL, and various data libraries to drive impactful results.
Experience
Work history, roles, and key accomplishments
Risk Analyst
Tata Digital
Jul 2024 - Present (11 months)
Designed fraud prevention strategies for gift card transactions and bill payments, successfully reducing the fraud-to-sales (FTS) ratio from 10% to 0.5%, despite a 4x increase in transaction volume, by implementing rate limits and real-time fraud alerts. Developed an Address Similarity Model to detect organized fraud in ecommerce brands, reducing new user offer abuse by 40%. Enhanced underwriting
Data Scientist
Simpl
Jul 2023 - Jun 2024 (11 months)
Developed a LightGBM-based model for Suspicious Transaction Detection using transaction, temporal, user, and network features, achieving 65% precision and 20% recall, leading to a 3% reduction in new user delinquency rates. Designed and implemented graph-based rules leveraging the NetworkX library to create dynamic graphs and to extract features. Contributed to enhancing performance and efficiency
Senior Analyst
Simpl
Apr 2023 - Jun 2023 (2 months)
Designed and implemented real time dynamic credit utilization strategies, with first transaction and cumulative utilisation thresholds, where dynamic thresholds were updated based on historical transaction data. Worked on end-to-end deployment of address similarity filter, from initial analysis to production deployment. Implemented real-time filtering for API and event flow, incorporating similari
Analyst
Simpl
Jan 2022 - Mar 2023 (1 year 2 months)
Designed and deployed rate limit and velocity filters for IP addresses, devices, and merchant accounts, to control cluster fraud. Deployed a blacklist based strategy that blocks transactions based on any blacklisted attributes, establishing a feedback loop for dynamically adding and removing attributes from the table. Designed and implemented an IP- based strategy for identifying high-risk IP octe
Data Science Intern
Simpl
Sep 2021 - Dec 2021 (3 months)
Conducted exploratory data analysis on data captured by neuro ID service to identify key features for an onboarding model. Developed an automation process for prioritizing the support tickets, eventually improved the efficiency of the support team. Collaborated closely with fraud monitoring team to manually analyze fraud patterns and devise proactive solutions.
Education
Degrees, certifications, and relevant coursework
Kerala State Education Board
Higher Secondary Examination, General Studies
Grade: 95.56 %
Completed Higher Secondary Examination with a strong academic performance. Achieved 95.56% in the examination.
CBSE
AISSE, General Studies
Grade: 9.8 / 10
Completed the All India Secondary School Examination (AISSE) with a high grade. Achieved 9.8 out of 10.
IIT Kharagpur
Integrated M.Sc, Science
Grade: 7.36 /10
Completed a 5-year integrated Master of Science program. Achieved a performance of 7.36 out of 10.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
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