Risk Specialist

COLIBRIX ONE; Kraków; On-site; PLN 180,000 - 300,000; Full time

Job summary

COLIBRIX ONE is seeking an experienced Risk Specialist to lead the design, development and ongoing monitoring of a VAMP rate system for subscription-based merchant models. You will evaluate fraud and chargeback risks, liaise with card schemes, and leverage Ethoca and Verifi tools to reduce exposure.

The role requires 3-5+ years in risk management in acquiring, strong SQL/Excel skills, and knowledge of PCI DSS and KYC/AML principles. A proactive, detail-oriented mindset is essential.

Qualifications

• 3-5+ years of experience in risk management within acquiring.
• Experience with subscription/recurring billing merchants (free trial, auto-renewal, negative option).
• Hands-on experience building a VAMP rate calculation system (methodology, data sources, validation, reporting).
• Deep knowledge of Visa/Mastercard monitoring: VAMP/VDMP/VFMP, Mastercard ECM/EFM.
• Understanding of transaction and dispute lifecycle: authorization, clearing, chargeback, representment, arbitration.

Responsibilities

• Build and maintain a VAMP rate calculation system with methodology, data sources, automation and reporting.
• Assess subscription business models from fraud and chargeback perspective.
• Identify operational and technical risks and provide mitigation recommendations.
• Review tools like Ethoca, Verifi as part of a broader fraud/dispute strategy.
• Provide monitoring recommendations for KPI, fraud ratio, chargeback ratio and escalation procedures.
• Liaise with Visa/Mastercard on monitoring programs and compliance for subscription merchants.

Skills

Risk management

Subscription billing

VAMP rate calculation

SQL

Excel

KYC AML

Merchant underwriting

Fraud prevention

Dispute lifecycle

Tools

Ethoca Alerts

Verifi

RDR

3DS 2.x

Tableau

Power BI

Looker

PCI DSS

Job description

Join COLIBRIX ONE - Innovating the Future of Payments

At COLIBRIX ONE*, we're building advanced, AI‑powered payment technologies that support Payment Service Providers (PSPs), Electronic Money Institutions (EMIs), and neobanks across the EU and the UK. As a fully licensed Electronic Money Institution (FCA Reference No. 927920) and holder of a Financial Institution Licence issued by the MFSA, as well as a principal member of both VISA and Mastercard, we provide comprehensive, real‑world financial solutions that include:

• Global card processing
• Digital wallet infrastructure
• Cross‑border merchant accounts
• Alternative payment methods (APMs)
• Corporate accounts for legal entities

We're a fast‑growing team with a passion for innovation, security, and scalability. Our culture values curiosity, collaboration, and impact – and we're looking for talented professionals who are ready to shape the future of fintech.

At COLIBRIX ONE, your work directly powers the digital economy. If you're eager to solve meaningful challenges and build with purpose, we'd love to hear from you.

About The Role

We are looking for an experienced Risk Specialist with deep expertise in card acquiring and in managing merchants operating under subscription‑based (recurring billing) business models. The key area of responsibility will be the design, development, and ongoing monitoring of a system for calculating and tracking VAMP (Visa Acquirer Monitoring Program) rates, as well as managing fraud and chargeback risks.

Key Responsibilities

• Build and maintain a VAMP rate calculation system, including methodology, data sources, automation, and reporting.
• Assessment of the planned subscription business model from a fraud and chargeback perspective.
• Identification of operational and technical risks.
• Recommendations for reducing fraud and chargeback ratios.
• Review of available mitigation tools and operational approaches, including solutions such as Ethoca and Verifi, which are usually considered part of a broader fraud/dispute management strategy rather than standalone mitigation tools.
• Provide operational and monitoring recommendations for:
  • KPI and threshold monitoring
  • Fraud ratio tracking
  • Chargeback ratio monitoring
  • Operational escalation procedures
• Liaise with international card schemes (Visa, Mastercard) on compliance with monitoring programs (VAMP, VDMP, VFMP, ECM, EFM).
• Ensure compliance with card scheme requirements for subscription merchants (free trial, negative option billing, recurring transactions).

Mandatory Requirements

• 3-5+ years of experience in risk management within the acquiring business (bank, PSP, payment facilitator, or processor).
• Proven experience working with subscription/recurring billing merchants, including free trial, auto‑renewal, and negative option billing models.
• Hands‑on experience building a VAMP rate calculation system (methodology, data sources, validation, reporting).
• Deep knowledge of Visa and Mastercard monitoring programs: VAMP, VDMP (Visa Dispute Monitoring Program), VFMP (Visa Fraud Monitoring Program), Mastercard ECM/EFM.
• Understanding of the transaction and dispute lifecycle: authorization, clearing, chargeback, representment, pre‑arbitration, arbitration.
• Experience working with Visa and Mastercard reason codes, with a clear understanding of the differences between fraud and non‑fraud disputes.
• Knowledge of early warning and dispute prevention tools: Ethoca Alerts, Verifi CDRN, Verifi Order Insight, RDR (Rapid Dispute Resolution).
• Strong SQL and Excel skills for working with large transactional datasets.
• Understanding of KYC, AML, and merchant underwriting principles in acquiring.

Nice to Have

• Experience in international acquiring (cross‑border, multi‑currency).
• Experience integrating and configuring anti‑fraud systems (3DS 2.x, device fingerprinting, behavioural analytics).
• Knowledge of PCI DSS and card data handling requirements.
• Experience with BI tools (Tableau, Power BI, Looker) for building monitoring dashboards.
• Experience working with card schemes on remediation programs.

Personal Qualities

• Analytical mindset and strong attention to detail.
• Ability to work with large datasets and identify patterns.
• Proactive approach to risk identification and solution proposals.
• Strong structured communication skills with business, operations teams, and card schemes.

What We Offer

• Opportunity to shape the future of fintech solutions within a growing company.
• Collaborative, horizontal team structure that values your expertise and ideas.
• Continuous learning and development opportunities to enhance your skills and career growth.
• Competitive salary and benefits package.
• This position is offered within the COLIBRIX ONE. Employment will be under the appropriate legal entity based on the role and location.