Senior Software Engineer

Senior Software Engineer

• Led the architectural design and strategic decomposition of the first microservices within the Pricing Domain, successfully breaking down legacy monolithic functionality to achieve high scalability and deployment independence.
• Conducted an in-depth experimental evaluation comparing DynamoDB over PostgreSQL to inform future data architecture strategy and validate performance under core domain use cases.
• Drive technical leadership by authoring technical specifications, guiding architectural refactoring, and enforcing engineering best practices across the domain.
• Mentor junior engineers, running rigorous code reviews to elevate team capabilities and maintain high code quality.
• Contributed across the full stack using Java, Spring Boot, and React to deliver robust, end-to-end features for core pricing services.

BackEnd Engineer

• Spearheaded infrastructure cost-saving initiatives by profiling and optimizing AWS resources, including EC2 instances, Kubernetes pods, and RDS infrastructure.
• Directed architectural refactoring and defined cross-team API flows to optimize data contract efficiency and cross-functional system collaboration.
• Designed the migration strategy from SQS and RabbitMQ to Kafka to streamline message brokering and minimize operational overhead.
• Conducted deep-dive architectural experiments to evaluate the viability and performance of reactive microservices for production use cases.
• Enhanced business-critical microservices using Java, Kotlin, and Spring Boot, integrating Postgres, MongoDB, gRPC, and REST within an Event-Driven Architecture.

BackEnd Engineer

• Developed microservices for Vodafone's new Business Portal using Quarkus, MongoDB, Docker, Kubernetes, and Jenkins, enhancing business operations.
• Migrated from monolith and SOAP to REST microservices, improving scalability and maintainability.
• Implemented reactive Kafka consumer microservices for efficient data processing and storage in MongoDB.
• Embraced Reactive and Functional Programming paradigms to optimize system performance.
• Performed complex queries on MongoDB NoSQL documents leveraging Mongo Aggregations.
• Developed a highly optimized login microservice for Vodafone GR, featuring reactive design, filtering, search, and pagination capabilities.
• Employed Git and Gitflow rigorously throughout the development lifecycle, ensuring robust version control and collaboration.

Telecom Specialist (Internship)

• Automated Network efficiency tests
• Error identification and troubleshooting
• Script monitoring tool with alerts