Uzoamaka O.

Key Skills

Software

AWS SageMaker

Appen

Data Annotation Tech

Top Subject Matter

Fintech fraud detection

payment transactions

compliance investigations (AML/KYC, PCI-DSS awareness)

Top Data Types

Text

Document

Top Task Types

Classification

Freelancer Overview

Fraud Analyst | Kingmakers (Lagos) — May 2023 to May 2024. Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include N, A, and Microsoft Excel. Education includes Bachelor of Arts, Enugu State University (2017). AI-training focus includes data types such as Text and labeling workflows including Classification.

Labeling Experience

Risk Analyst | SkyBet (Abuja) — June 2024 to Present

TextClassification

Conducts transaction reviews and risk assessments to identify suspicious activities and operational risks within a structured compliance workflow. Monitors escalated irregular transactions and records review outcomes for compliance and case evaluation. Produces accurate documentation and reporting while following internal controls and guideline-based processes for sensitive financial data. • Review transaction data for fraud/risk indicators and irregular patterns • Escalate irregular transactions according to operational procedures • Maintain compliant documentation and reporting for case reviews • Follow structured workflows with accuracy and attention to detail

2024 - Present

Fraud Analyst | Kingmakers (Lagos) — May 2023 to May 2024

TextClassification

Reviewed and processed payment transaction records to identify potential fraud and discrepancies using defined operational procedures. Documented findings for chargeback, dispute, and investigation workflows, supporting subsequent case review decisions. Performed compliance-aware data handling for sensitive financial information and escalated irregularities to the appropriate teams. • Assessed transaction data for irregular patterns and risk indicators • Supported dispute resolution and chargeback investigation documentation • Flagged suspicious transactions to support fraud prevention workflows • Maintained accurate records and tracking for operational compliance

2023 - 2024

Payment Officer | Kingmakers (Lagos) — Jan 2022 to May 2023

TextClassification

Handled escalated customer and account-related issues in a regulated operational environment by reviewing case information and ensuring structured resolution workflows. Maintained accurate records and reporting outputs aligned with internal controls and compliance procedures. Collaborated with internal teams to improve workflow efficiency while ensuring attention to detail in sensitive transaction-related cases. • Reviewed and documented issue details for resolution and reporting • Ensured adherence to operational and compliance procedures • Supported accurate record keeping for account and transaction cases • Coordinated with teams to improve operational workflow efficiency

2022 - 2023

Payment Analyst | NairaBET (Lagos) — Sep 2020 to Jan 2022

TextClassification

Assisted a fraud prevention team by reviewing customer payment request information and helping identify and flag suspicious transactions. Supported the implementation of fraud detection tools and advanced security measures by contributing to operational review activities. Managed customer-facing payment and dispute inquiries while ensuring the accuracy of transaction-related records and follow-up documentation. • Reviewed payment authorization requests (online and retail) • Flagged suspicious transactions to support fraud detection efforts • Assisted with rollout of security measures and tool implementation • Maintained records for customer payment issues and disputes

2020 - 2022

Education

Work History