System Analyst - (Authorization Host / SWITCH / POS Handling / E-commerce)
Core
Design and implement solutions for Authorization Host, SWITCH, POS Handling, and E-commerce payment processing systems.
Role type
Senior System Analyst (Payments & Acquiring)
Builds
Reliable, scalable, and secure payment processing solutions across multiple channels.
Domain
Financial services, Banking, Payments, Fintech
Deliverable
production ML models | product features | dashboards & analysis | client delivery
Required skills
Authorization Host platforms, SWITCH platforms, POS terminal handling, Payment Gateway/PSP integrations, E-commerce payment flows, 3-D Secure, Transaction routing, ISO8583, ISO20022, Host-to-Host integrations, Payment security (HSM, PIN encryption, PCI PIN)
Preferred skills
BLIK, Terminal lifecycle management, Cryptographic key management
Technologies
ISO8583, ISO20022, Visa, Mastercard, American Express, BLIK, HSM
Responsibilities
Gather and analyze business and system requirements for Authorization Host and SWITCH platforms; Design and document authorization, capture, routing, and settlement transaction flows; Analyze transaction routing, stand-in processing, timeout, and fallback scenarios; Support POS terminal handling, device integrations, and terminal management processes; Analyze Payment Gateway and PSP integrations; Support e-commerce payment flows including card-not-present transactions and 3-D Secure authentication; Prepare ISO8583 and ISO20022 message mappings; Analyze Host-to-Host integrations and communication models; Define payment security requirements including HSM, cryptographic keys, and PCI PIN; Prepare test scenarios and support integration testing, UAT, and production rollout.
Seniority
Senior, hands-on IC
