Kosta Sovaridis

Architecture & implementation of full infrastructure as code environment. Using tools

like OpenTofu, Kubernetes, Gitlab CI. Ending up in a 50% reduction in cloud spendings

while improving services latency, and observability.

Migrated an Apache Cassandra cluster using Medusa.

Implemented a Pull Request Review, using temporary containers, allowing for

stakeholders to see in development features which increased the interation speed.

Provided Kubernetes workshops, which rapidly increased knowledge internally and

allowed the teams to adopt cloud best practices.

Setup of OpenTelemetry, Elastic APM for observability and monitoring.

Worked on the intermut project, based on an event driven architecture. The aim of the project was to transfer all the existing IBM mainframe architecture and it's data to an OpenShift based solution using different streaming technologies such as Apache Flink, Spring Boot, IBM Event Streams.

Participation on the EMPAIA and HIP-CDR projects. Building cloud natives applications able to scale to the demand, DevOps CI/ CD (Jenkins, Artifactory, Docker, Kubernetes, Helm charts). Centralisation of the authentication and authorization with multi-tenancy support (OAuth 2.0, OIDC, Keycloak). Development of message driven services (AMQP, Spring Boot, Spring Cloud, PostgreSQL).