Istvan Eles

IE

Open to opportunities

Istvan Eles

@istvaneles

Senior fraud and payments specialist driving data-led risk reduction and process optimisation.

What I'm looking for

I am seeking a senior fraud/payments role where I can lead data-driven fraud strategy, optimise payment acceptance, mentor teams, and drive process automation within a collaborative, growth-focused company.

I am a Senior Fraud & Payments Specialist with over 10 years' experience in high-volume, high-risk industries including online entertainment, micromobility and online gambling. I build end-to-end fraud detection frameworks, design AML/KYC processes and optimise payment ecosystems to reduce losses while preserving customer experience.

At Emtransit BV (Dott/TIER) I designed and implemented a fraud prevention framework for a high-volume payments environment, led fraud analysis during a major merger, and partnered with Legal, Finance, Growth and Operations as the fraud SME. Previously at LeoVegas I managed fraud rules, conducted deep investigations into fraud rings and supported AML process design and operational improvements.

I combine strong data analytics (SQL, BigQuery, Tableau/QlikView) with practical experience across PSP integrations and risk engines (Adyen, Checkout.com, Stripe, PayPal, Braintree) to deliver rule tuning, automation and large-scale process optimisation. I mentor analysts, support audits and investigations, and drive measurable improvements in acceptance and dispute defence.

Experience

Work history, roles, and key accomplishments

EB

Current

Payments & Fraud Specialist

Current

EMTRANSIT BV

Jan 2022 - Present (4 years 2 months)

Designed and implemented an end-to-end fraud prevention framework for a high-volume payment ecosystem, analysed payments and marketing data to detect fraud patterns and optimise acceptance, and led fraud integration during the Dott/TIER merger by identifying control gaps.

Fraud Strategy Transaction Monitoring PSP Integrations SQL Cross Functional Stakeholder Management Process Improvement Process Mapping Process Optimization Payment Processing Payment Gateways

LG

Senior Risk & Fraud Analyst

LeoVegas Gaming

Jan 2017 - Jan 2022 (5 years)

Managed fraud rules and risk configurations, conducted deep investigations into fraud rings and payment abuse, supported AML process design and operational improvements, and mentored the Risk & Fraud team.

Fraud Investigation AML KYC PSP Liaison Rules Configuration & QA Mentoring Mentoring Coaching Mentoring Junior Team Members Team Management Process Improvement Process Management

CO

Risk Analyst

Confidential

Jan 2010 - Jan 2017 (7 years)

Performed transaction monitoring, KYC checks, fraud investigations and dispute handling, led customer operations initiatives and developed process improvements to reduce fraud and operational risk.

Transaction Monitoring KYC OSINT Process Improvement Customer Operations Data Enrichment Mentoring

Education

Degrees, certifications, and relevant coursework

GE

Global Edulink

Diploma in Business Management, Business Management

Completed a Diploma in Business Management in 2019 from Global Edulink.

Tech stack

Software and tools used professionally

Tableau

QlikView

MySQL

Gmail

Zendesk

Jira

PayPal

Adyen

Checkout.com

Notion

Google Sheets

Microsoft Excel

Google BigQuery

Braintree

SQL

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