Yenifer Barrios Quiros
@yeniferbarriosquiros
Data Analyst with expertise in fraud prevention and machine learning.
ZimbabweWhat I'm looking for
I am a dedicated Data Analyst and Fraud Prevention Specialist with over 3 years of experience in data analysis and a strong background in customer service and technical support. My journey has equipped me with the skills to adapt quickly to high-pressure environments while maintaining a focus on delivering exceptional results. I thrive on challenges and am eager to contribute my expertise in data analysis and machine learning to a forward-thinking company.
Throughout my career, I have successfully utilized tools like SharePoint and Excel to analyze and classify customer accounts, investigate suspicious activities, and support machine learning initiatives. My experience in fraud prevention has honed my ability to identify and escalate high-risk cases effectively. I am passionate about leveraging my skills to enhance predictive accuracy in fraud detection models and contribute to a team that values innovation and growth.
Experience
Work history, roles, and key accomplishments
Data Analyst & Fraud Prevention Specialist
Machine Learning
Jan 2021 - Dec 2024 (3 years 11 months)
Investigated suspicious accounts using tools such as Customer Service Central, TimeMachine, Nautilus, VerifySpoofing, and anti-bot programs to detect signs of account takeovers, bot activity, or internal/external fraud. Supported machine learning initiatives by contributing labeled datasets to improve predictive accuracy in fraud detection models.
Technical Support and Customer Service
Amazon D2AS
Jan 2020 - Dec 2021 (1 year 11 months)
Delivered high-quality support via chat, email, and phone, resolving technical and account-related issues with clarity, empathy, and professionalism. Managed customer accounts by handling updates, inquiries, and personalized support, often multitasking across multiple systems and queues.
Games & Software Technical Support and Customer Service
DigiQueue
Jan 2019 - Dec 2020 (1 year 11 months)
Provided customer and technical support for digital transactions (subscriptions, games, software) via chat, phone, and email. Resolved account, billing, and access issues while troubleshooting technical problems with digital products.
Technical Support and Customer Service
Sykes Capital One
Jan 2018 - Dec 2019 (1 year 11 months)
Delivered customer and technical support related to banking services, including account management, card cycles, fund availability, and queue handling. Investigated account risks and potential fraud, escalating complex cases to ensure secure and compliant resolution.
Education
Degrees, certifications, and relevant coursework
Unknown
Advanced Cybersecurity, Cybersecurity
2024 -
Currently pursuing Advanced Cybersecurity studies, with an expected completion in 2024. This program focuses on advanced concepts and practices in cybersecurity.
Oxford
Business English Technician, Business English
2019 - 2020
Grade: Graduated with honors
Graduated with honors as a Business English Technician in 2019-2020. Achieved a C2 level on the Oxford test, demonstrating advanced proficiency in business communication and soft skills.
UACA
International Relations, International Relations
2015 - 2015
Undertook studies in International Relations at UACA in 2015. This program focused on global political, economic, and social dynamics.
High School
High school Diploma, General Studies
2014 - 2014
Completed high school education, obtaining a diploma in 2014. This foundational education provided a broad understanding across various subjects.
Tech stack
Software and tools used professionally
Availability
Location
ZimbabweAuthorized to work in
Job categories
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