Маркіян

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Markiyan Kruhliy
[відкрити контакти](див. вище в блоці «контактна інформація»)

Lviv, Ukraine

[відкрити контакти](див. вище в блоці «контактна інформація»)

Anti-Fraud Risk Analyst PayDo
experience.
October 2024 May 2026

I manage the day-to-day fraud-control programme for a high-volume payments platform. Working from

raw transaction data, I monitor live and historical flows, apply statistical and machine-learning

techniques to uncover unusual clusters and evolving schemes, and translate these findings into

calibrated rules, velocity limits, and risk scores that block fraud before it causes loss. I keep fraud

policies, escalation paths, and QA routines aligned with regulatory guidance and the organisation’s risk

appetite, while continuously tracking false-positive ratios, chargeback trends, and case-resolution

times to confirm our defences remain effective. When drift or new gaps appear, I coordinate fixes with

AML, Product, and external partners, containing threats swiftly and ensuring legitimate customers can

transact without undue friction.

Fraud Analyst Payop

June 2024 October 2024

I optimized fraud detection systems to identify and mitigate fraudulent activities, reducing risks and

losses through data-driven analysis. I analyzed transaction patterns to uncover trends, proposed

improvements to fraud prevention strategies, and developed anti-fraud rules. My role involved

investigating and summarizing findings from specific fraud cases, assessing risks, and identifying

process vulnerabilities. I designed and implemented labeling systems for transactions, enhancing

monitoring and detection processes. Additionally, I created detailed reports and visualizations to

communicate insights and recommendations to senior management while collaborating with cross-

functional teams to develop and improve fraud prevention procedures.

Business Analyst Intern ELEKS

July 2023 August 2023

My role included bridging the gap between business needs and technology solutions by collaborating

with stakeholders to gather and analyze requirements, perform functional decomposition, wireframe

solutions, map user stories and manage backlog. I developed detailed documentation, ensured

j
solutions aligned with business ob ectives, conducted market research, and supported pro ect j
management to deliver high-quality I T services that drive business success.

education. B .Sc. T &I Business Analyti c s Ukrainian Catholic University

202 1- 202 5
Probability &S tatistics - Linear Algebra - ML - E
conometrics - N LP - O j
b ected-oriented Programming -

D atabases - Algorithms &D ata S tructures - Salesforce - UX/U D I esign

T hesis : “F inancial F
raud D etection : R A isk- B ased Approach ”

skills. D ata Analysis S QL SEON J /C
ira onfluence

Python R Zendesk F igma

ML J ava T
ableau E nglish (B2)
E xcel G it Power B i