Director of Multi-Channel Payment Systems · Enterprise Architect · Software Engineer
Architecting high-availability payment platforms, vendor-independent POS ecosystems, and high-performance processing infrastructure.
- 20+ years in software engineering & fintech
- Building mission-critical payment systems
- From hands-on coding → to system & organizational architecture
- Performance, reliability and security as first-class requirements
- Distributed payment systems
- ISO-8583 message processing
- EMV L2 kernel integration
- TLV parsing & cryptographic flows
- HSM (network & pooled connections)
- High-TPS backend architecture
- SLO / SLI driven engineering
Java · Kotlin · Spring Boot · gRPC · REST · PostgreSQL · Redis
Angular · TypeScript
Android 13 · Jetpack Compose · Hilt · Coroutines
HAProxy · Docker · Linux · CI/CD
EMV · ISO-8583 · DUKPT · HSM
- Reliability over velocity
- Measure everything
- Automate everything
- Security by design
- Clean architecture at scale
- LinkedIn: https://linkedin.com/in/datikos
Building a vendor-independent, high-performance, multi-tenant payment platform capable of:
- 10k+ concurrent terminals
- horizontal scaling
- multi-HSM routing
- real-time observability