Software Engineer Senior
Core
Conduct EMV Level 3 certifications for major payment brands (Visa, Mastercard, Elo, Amex), analyze ISO 8583 messages, and troubleshoot end-to-end transaction failures.
Role type
Senior IC payment systems engineer (EMV/ISO 8583)
Builds
Certified POS, SmartPOS, Pinpads, and mobile payment solutions (Tap on Phone, SoftPOS)
Domain
Payments, Financial Services
Required skills
EMV Level 3 certification, ISO 8583 message analysis, transaction troubleshooting, functional/integration testing, technical specification interpretation, release support, risk evaluation
Preferred skills
Visa/Mastercard/Elo/Amex brand experience, SoftPOS/Tap on Phone knowledge, DUKPT/PIN Block/MAC/HSM, key management, PCI DSS/PTS/MPoC, test automation, Datadog, Java/Kotlin/Python/JavaScript
Technologies
Fime BTT, Android, iOS, ISO 8583, EMV, ABECS
Responsibilities
Conduct EMV Level 3 certifications for Visa, Mastercard, Elo, and American Express; Analyze and validate ISO 8583 messages, EMV processing, and transaction codes; Investigate end-to-end transaction failures using logs and integrations; Define and execute functional, integration, and regression test strategies; Support technical decisions regarding transaction flows and security; Support production releases, risk assessment, and incident investigation.
