Dušan Stamenković

I’m a senior DevOps engineer and long-time CTO with over 15 years of experience leading complex infrastructure, security, and software projects across Europe, especially in the fintech and payment industries.

Over the past decade, I’ve architected and built high-availability systems for payment cards, loyalty platforms, and banking integrations — including PCI DSS-compliant services, Kafka-based microservices, PostgreSQL clusters (Citus), Redis sync layers, and full CI/CD automation.

At OPC Europe (NIS Gazprom’s IT partner), I’ve led DevOps and backend teams building secure transaction processing platforms, integrating HSMs, EMV card issuance (including chip APDU), and managing production-grade distributed systems based on SpringBoot and JBoss clusters.

I’m now offering my expertise as a part-time DevOps consultant to help EU companies:

• Improve DevOps pipelines (CI/CD, GitLab, Jenkins, etc.)

• Secure and scale microservice-based applications

• Implement PCI DSS standards or EMV-compliant systems

• Troubleshoot performance, caching, or messaging issues

• Lead or support cloud migration and automation projects

I’m fluent in English and Slovenian, and available for remote projects (40–60h/month) on a flexible schedule. Whether you need a temporary co-CTO, senior DevOps guidance, or hands-on implementation — let’s talk.