Selected systems and products

Engineering case studies focused on payment infrastructure, banking platforms, and product delivery. Private repositories are never exposed.

Payment Gateway · Infrastructure

Glass

01

Payment gateway and merchant infrastructure platform supporting transaction processing, provider integrations, and operational reliability for payment flows.

Payment infrastructureProvider integrationsTransaction processing

Banking · Card Issuance

Kardit

02

Banking, card issuance, and card management platform designed for multi-tenant financial operations and integrated banking services.

Card issuanceCard managementMulti-tenant systems

Payment Gateway

Payinvert

03

Payment gateway and payment infrastructure focused on secure transaction processing and banking provider integrations.

C# / .NETCybersourceMPGS

Payment Infrastructure

Simpustack

04

Payment infrastructure platform covering card payments, bank transfers, USSD, merchant tooling, and API-driven payment services.

Payment gatewayCard paymentsBank transfers

Product Engineering · Consulting

DD Technology Consult

05

Technology consulting practice focused on product engineering, architecture, modernization, DevOps, and software reliability.

Product engineeringArchitectureAPI integration