Halil – Java, React, Spring Boot

Developing services and new features for the platform that handles marketing, customer segmentation, and campaigns for its brands and handles their offer and campaign management. The project included adding different features for the customers that are used both on the platform's front end and via its backend APIs that are programmatically consumed by the clients.

• Fixed various bugs;
• Added new API features and extending the usability and performance of the current APIs;
• Wrote unit and integration tests;
• Added new features for campaign management and package/plan management;
• Added features for both the backend and frontend.

It's a hospitality application to manage cafes and restaurants with stock, payment, and accounting management.

• Migrated monolithic app into microservices;
• Run deployment using automated CI&CD and tests;
• Retrieved data from external partners such as payment gateway providers and fed data into MySQL and Kafka;
• Implemented REST APIs secured by OpenID protocol using tokens and Spring Security.

It's an application to manage daily file imports and funding adjustment records.

• Migrated database change management into Liquibase;
• Arranged the CI&CD lifecycle;
• Wrote the automated deployment scripts.

It's a web application for investment banking.

• Configured microservice architecture based on Spring Cloud;
• Oracle DB support and Autosys job maintenance to ensure data quality of the outputs of scheduled jobs that turn into reports for various resources in the company.
• Did database migration and change management by Liquibase;
• Prototyped the migration of the existing on-premises microservices to Azure;
• Built DevOps pipeline using Gitlabs;
• Wrote integration tests.

It's a military situational analysis and integration tool.

• Developed an app for Android, Windows Toughbook, and desktop versions;
• Worked on both front-end and back-end and produced reports for business intelligence;
• Implemented a position-tracking web application using microservices architecture and ActiveMQ communication.