Ioanna Karantourou
@ioannakarantourou
Backend-focused full-stack engineer specializing in .NET, AI/ML integration, and cloud deployments.
GreeceWhat I'm looking for
I am a backend-focused full-stack engineer with 4+ years building and modernizing enterprise-scale systems in the .NET ecosystem, leading architectural migrations, integrating AI/LLM agents into production, and shipping testable code with Docker and Kubernetes. I have prototyped and designed scalable architectures for mission-critical platforms, modernized legacy systems to .NET 8, and improved deployment reliability through containerization and CI/CD.
I am passionate about solving real problems within collaborative, engineering-driven teams across Europe and expanding my backend expertise into Java/Spring Boot. My achievements include zero P1 production incidents during engagements, delivering large-scale CRM/ERP modernizations, and producing production-ready AI integrations and standalone products using Clean Architecture and robust testing practices.
Experience
Work history, roles, and key accomplishments
Full-Stack Software Developer
Epsilonnet
Sep 2025 - Present (6 months)
Contributing to modernization of a legacy .NET Windows Forms CRM/ERP into a .NET 8 architecture with PostgreSQL and RabbitMQ, architecting scalable solutions and prototypes for a mission-critical platform used by tens of thousands of professionals.
Software Engineer
Opencomm SA
Jan 2024 - Sep 2025 (1 year 8 months)
Led UI modernization of an enterprise CRM with .NET Blazor, pioneered speech-to-speech AI agent integrations using LangChain and HuggingFace, and migrated deployments to containerized Docker/Kubernetes pipelines improving reliability and release velocity.
Junior Software Developer
Wheelsys
Oct 2022 - Dec 2023 (1 year 2 months)
Developed and migrated features for a global SaaS CRM serving 900+ car rental businesses, moving legacy components to .NET Core 6 and Blazor and building RESTful APIs for internal integrations.
Provided advanced enterprise technical support, managing high-volume incidents and escalations across diagnostic systems while improving time-to-resolution metrics under SLA constraints.
Education
Degrees, certifications, and relevant coursework
University of Thessaly
Bachelor of Science, Computer Science & Biomedical Informatics
Completed a B.Sc. in Computer Science & Biomedical Informatics, graduating in 2023.
Availability
Location
GreeceAuthorized to work in
Job categories
Skills
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