Flexifai is an AI-driven payment platform (PSP) serving both high-risk and traditional industries. We process millions of transactions through 80+ payment methods, including cryptocurrency, across Africa, Europe, and LATAM. Our platform is built on a scalable microservices architecture with a strong focus on security, automation, and high availability.
Our team of 80+ professionals works in a hybrid format from offices in Kyiv, Lisbon, Limassol, and London, as well as remotely across the globe.
Key Responsibilities:
Chargeback Case Management * Receive and conduct an initial review of chargeback cases submitted by the Finance team and payment providers. * Review transactions in internal systems and match the data against provider information (descriptor, payment details, customer payment history). * Classify cases by reason code and determine the nature of the dispute: fraud / non-fraud / other. * Make decisions on cases: accept the chargeback or proceed with representment, providing a clear rationale for the decision. * Prepare supporting evidence for representment and manage cases through to the final outcome. * Confirm cases and hand them over to the Support team for further processing.
Analytics & Investigation * Group cases by merchants, providers, BINs, geographies, cards, IP addresses, and other common attributes to identify patterns and schemes rather than isolated incidents. * Conduct targeted investigations of suspicious cases and transaction clusters. * Identify recurring fraud scenarios and escalate patterns to the team lead. * Participate in Post-Transaction Monitoring: review alerts, analyze suspicious transactions, and validate hypotheses. * Prepare transaction samples and reports upon requests from merchants, payment providers, and internal teams (we’ll teach you how).
Comunication & Processes * Communicate with merchants, payment providers, and internal teams (Support, Finance, Compliance) regarding chargebacks, fraud, and disputed transactions. * Monitor case statuses and deadlines (chargeback deadlines are strict — a missed deadline can directly result in financial losses). * Manage Jira tasks and keep internal documentation, guidelines, and procedures up to date.
Required Skills: * 6+ months of experience in Payment Processing, PSP, acquiring, FinTech, chargebacks, anti-fraud, risk, or compliance. We are not looking for someone with no relevant experience, but we also do not expect a senior-level specialist. * Hands-on experience with chargeback cases or anti-fraud, including dispute management, representment, or fraud investigation, will be a strong advantage. * We are open to candidates from different risk-related backgrounds: online casinos and betting, crypto, PSPs or payment gateways, traditional banking or acquiring, and e-commerce with a high volume of disputes. * Good knowledge of Excel or Google Sheets, including lookup functions, pivot tables, and working with large datasets. * Analytical mindset and attention to detail: the ability to identify connections between individual transactions and draw conclusions rather than simply record facts. * Ability to manage multiple cases simultaneously and meet deadlines without constant reminders. * Strong business communication skills in Ukrainian and English; English — Intermediate or higher (you’ll work with provider documentation and correspondence). * Basic understanding of card schemes (Visa / Mastercard reason codes and the dispute cycle) will be a plus, but we can teach you.
What we offer: * Opportunity to work on a fast-growing international fintech product. * Modern cloud-native technology stack. * High level of technical ownership and influence. * Remote-first culture with flexible working hours. * Competitive compensation. * Paid vacation and sick leave. * Professional growth in an experienced engineering team. * International environment with ambitious product goals.
