About Kosta
French
Native or bilingual
English
Native or bilingual
Greek
Conversational
Experience
- IDCaptureCloud ArchitectCIVIL ENGINEERINGNovember 2024 - May 2025 (6 months)Paris, FranceArchitecture & implementation of full infrastructure as code environment. Using toolslike OpenTofu, Kubernetes, Gitlab CI. Ending up in a 50% reduction in cloud spendingswhile improving services latency, and observability.Migrated an Apache Cassandra cluster using Medusa.Implemented a Pull Request Review, using temporary containers, allowing forstakeholders to see in development features which increased the interation speed.Provided Kubernetes workshops, which rapidly increased knowledge internally andallowed the teams to adopt cloud best practices.Setup of OpenTelemetry, Elastic APM for observability and monitoring.
- NRBJava DevOps EngineerCONSULTING AND AUDITSOctober 2022 - Today (3 years and 8 months)Brussels, BelgiumWorked 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.
- Dévelopment backend avec Java
- Intégration d'API
- Mise en place de l'infrastructure Kubernetes (OpenShift)
- Architecture event driven en utilisant Kafka (IBM Event Streams)
- Vitagroup AGBack End DeveloperHEALTH AND WELLNESSSeptember 2020 - September 2022 (2 years)Mannheim, GermanyParticipation 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).
- Implémentation d'une architecture multi-tenant via Keycloak
- Dévelopement backend java
- Mise en place du CI/CD
- Utilisation de framework tel que Spring Boot
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Education
- CESS SciencesAthénée Royal d'Hannut2018CESS Sciences
Certifications
- Certified Kubernetes AdministratorThe Linux Foundation2023
- CESS SciencesAthénée Royal d'Hannut2018