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Business Analyst (Card Payment Systems)

Roofstacksİstanbul

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At Roofstacks, we are driving the next generation of digital finance. We're on the lookout for a Business Analyst who brings deep knowledge in card payment systems and thrives in a cross-functional, high-impact role. If you’re experienced in card lifecycle management, regulatory compliance, and end-to-end product delivery across debit, credit, and prepaid cards—let’s talk.   💼 Key Responsibilities You will play a critical role in managing processes across all card types—Bireysel, Ticari, Ek/Sanal/Dijital—and will work closely with stakeholders across Product, Technology, Risk, and Operations. Your key responsibilities include: (may vary depending on your team)

  • Managing card application journeys across all channels (Branch, IVR, Digital)
  • Integrations with KKB/LKS, Decision Support, Analytics Solutions and other decisioning tools
  • Oversight of card lifecycle operations: new issuance, renewal, closure, limits, fraud
  • Supporting fee & commission configurations, statement management, posting, rediscount
  • Handling BIN/RANGE, EMV scripting, PIN management, encryption/key management
  • Managing POS onboarding, device vendors, parameter distributions, RKL flows
  • Driving interchange & clearing processes (Visa Base II, Mastercard IPM, BKM YTH/BTH)
  • Working on 3DS 2.x, ACS, GO authentication systems, API integrations, and open banking
  • Ensuring regulatory compliance (BDDK, PCI-DSS, KVKK) and adapting to scheme updates   🎯 What We’re Looking For
  • Minimum 4 years of hands-on experience in card payment systems
  • Bachelor’s degree in Engineering or related technical discipline
  • Experience with banking/payment systems, POS infrastructures, and merchant onboarding
  • Strong understanding of ISO 8583, EMV transaction flow, 3DS, tokenization, and fraud detection
  • Familiarity with Visa, Mastercard, BKM, and their operational and reporting structures
  • Strong analytical and documentation skills with a proactive, solution-oriented mindset - Fluency in Turkish; professional working proficiency in English is a strong plus   ⭐ Nice-to-Have Skills
  • EMV Scripting & PIN encryption knowledge
  • API testing, system integration & test coordination experience
  • Open banking, KVKK, GIB/IKS integration awareness
  • Previous experience in launching or migrating card products
  • Knowledge of settlement/accounting impacts of clearing processes
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