- Developed field sales merchandising app that enables companies to plan and strategize key activities with the merchandisers to ensure sufficient products are available at every retail shelf, visibility of inventory movements, and ultimately maximise the product revenues. - Developed merchandiser supervisor app that integrates seamlessly with field sales merchandising, enabling supervisors to monitor merchandisers’ activity history and quickly identify any suspicious behavior, enhancing oversight and operational integrity.- Configured sentry to capture mobile app production monitoring and OneSignal for push notifications- Integrated expo-updates to notify user when there is an OTA update available and reload the app for the users, offline mode feature using sqlite and expo-background-fetch to periodically sync data between mobile’s local DB and backend server.

- Developed reconcile transaction system which has helped the operation teams to detect a suspected transaction in a much shorter time (few minutes) and automate the suspected transaction’s reconciliation once it is confirmed.- Developed biller service which is being consumed by our banking’s frontend channel to enable purchases and bill payments that is supported by the bank.- Implemented OAuth authentication (integrated with LDAP) using Spring Boot and integrated it with Spring Cloud Gateway, providing secure, centralized access control across microservices.- Designed microservice architecture to support company’s transition to a more scalable, modular and reliable infrastructure by utilizing Openshift.- Implemented Gitlab CI/CD to automate build, run unit tests, and deploy new updates to the server which enhances the time required to deploy an application while also maintaining the code quality of deployed application.- Successfully setup a self-hosted Gitlab on company’s private server which ensures more security and full control over the company’s source code.

- Troubleshooting application when an error occured in the production environment (query and read logs by accessing the server via SSH)- Build and execute queries for reports needed by other divisions about Internet Banking and Mobile Banking data.- Backup logs of the application hosted in CentOS 7 and Solaris server using both manual and cronjob method.- Maintains the availability of application and deploy updates of application.- Make sure the services used is up and running well in Openshift.

- Develop REST APIs for e-commerce application- Develop REST APIs for trip planner application- Integrate to third party for Delivery and Payment (bookeey) API

- Developed a school management system to support key workflows, such as Virtual Account Payment integration for student fee payments and integrated with the cash flow management system, enhancing operational efficiency and effectivity- Developed an online book purchase reservation system and an online student registration platform, automating processes to enhance effectiveness and efficiency. These platforms integrate seamlessly with the cash flow management system, providing streamlined transaction recording and improved financial tracking.- Deployed and maintained applications on Linux servers, implementing daily database backups to ensure data integrity and recovery capabilities.