Mykhailo Sizikov

Fidel Partners

• Monitor and analyze user activity and transactions to detect fraudulent behavior
• Investigate IP addresses, device fingerprints, bets, and gaming patterns
• Verify KYC documents and perform multi-level user verification
• Detect multi-accounting, collusion, arbitrage, and complex fraud schemes
• Escalate cases and collaborate with Support, PSP, Promotions, and Providers
• Contribute to developing fraud rules and automated detection filters

4bill.io · Remote

• Designed fraud prevention training materials using VISA/MasterCard compliance standards
• Built real-time monitoring logic to detect suspicious transaction activity
• Conducted 432 merchant reviews in Jira with detailed reporting and risk scoring
• Performed deep transaction analysis with SQL (DataGrip), Grafana, and CRM tools
• Investigated risky behavior using SEON, IPQS, ArkOwl, and KYC systems
• Collaborated with acquirers to reduce fraud ratios and processed chargeback reports

BLD Ukraine · Kyiv

• Prepared market reports and investment presentations for senior management
• Coordinated client communications, property viewings, and deal execution
• Handled documentation, contracts, and due diligence processes

OTP Bank · Kyiv

• Monitored alerts and contacted clients to verify suspicious transactions
• Conducted daily review of high-risk transactions in payment systems
• Optimized CRM processes, increasing team efficiency by 30%
• Verified KYC/AML documentation and ensured regulatory compliance
• Prepared regular risk and compliance reports for management