Giorgos Mitaros Email & Phone Number

Athens, Attiki, Greece

● Improved bonus mechanisms in the Player Account Management platform by developing new features using Java, Spring Boot, and Oracle DB, enhancing player engagement and retention.● Migrated monolithic application to microservices architecture, transitioning from Wildfly server to Spring Boot microservices, improving scalability and maintainability.● Developed event processing service with a team, leveraging RabbitMQ, Azure Functions, and Azure Event Hubs to unify event payloads and stream them for downstream processing.● Implemented real-time analytics using Azure Stream Analytics to generate informational events (e.g., user inactivity after login, deposit behaviors), enabling targeted marketing campaigns and increasing user activity by 25%.● Integrated with Salesforce and gamification platforms, providing enriched event data to trigger personalized bonuses and gamification tasks, boosting customer engagement.● Processed high-volume betting data with Kafka to calculate real-time player betting behaviour.● Conducted proof of concept (POC) on Quarkus, exploring performance improvements for Java applications.● Implemented new features on communication services for campaigns, handling push notifications, SMS, and Viber messages to over 100,000 customers, increasing campaign effectiveness.● Orchestrated platform scalability with Kubernetes and integrated Azure services for robust back-end solutions, achieving 99.9% uptime.

Athens, Attiki, Greece

● Maintained automated regression tests and Jenkins pipelines, enabling continuous integration and delivery, which reduced deployment times by 50%.● Provided technical estimations for new projects, improving planning accuracy and resource allocation.● Employed Docker, TDD, RESTful APIs, and created technical documentation, enhancing code quality and maintainability.● Guided system design and mentored junior developers in software design patterns, Kubernetes, and microservices architecture, boosting team productivity.● Optimized database performance by writing advanced SQL queries, creating tables, and indexing, leading to improved application responsiveness.● Developed a multi-business account management system, allowing clients with multiple businesses to access all their company accounts without re-logging, increasing efficiency for corporate clients.● Created a consolidated financial overview feature using Spring Batch for asynchronous processing, enabling users to view all accounts, cards, loans, stocks, and bonds across companies with a single click.● Utilized Spring Batch to process large volumes of records asynchronously, including logging/tracing, transaction management, job processing statistics, job restart, skip, and resource management.

Greece

● Contributed to the development of an omni-channel banking platform for a major Greek bank, encompassing web banking, mobile, ATMs, phone banking, and corporate banking.● Developed full-stack features using Java 8, Spring Boot, RabbitMQ for backend APIs, and React with Redux for frontend components.● Implemented backend APIs to fetch and display user loyalty points and categorize spending (food, entertainment, etc.).● Collaborated in an Agile Scrum environment, participating in sprint planning, daily stand-ups, and retrospectives to deliver features on time.● Worked with MS SQL Server databases, writing queries to support application functionality and ensuring data integrity.

During my nine month army service in Greece in the section of Military Police, I was awarded the rank of Sergeant due to my disciplined attitude.