- Adapted multiple Superset dashboard widgets using ReactJS, CSS, and PostgreSQL queries to align with project leader specifications, resulting in the addition of 3 major dashboards to the software, leading to the acquisition of several new clients.- Built dockerized applications with the GitLab CI/CD tools and then deployed them to production using AWS such as ECS, ECR, and CloudFormation, streamlining deployment processes and enhancing efficiency.- Wrote an AWS Lambda function using AWS API Gateway to capture in-app analytics storing results in an S3 bucket for further data processing to identify user behavior patterns- Led the design and implementation of three major features, from gathering requirements and proposing software designs to assigning SCRUM stories, conducting code reviews, and orchestrating deployment, resulting in a significantly strengthened application.- Earned the Gold Award for demonstrating the Growth value by successfully replacing a legacy application with a new and improved (cloud-based) one.

- Built and updated multiple UI components written in JavaScript, CSS, and HTML based on the project leaders' needs and customers' feedback, leading to a significant enhancement in the graphical interface and overall user experience.- Designed, developed, and tested (using JUnit) the back-end Email Notifications feature using Java Spring framework, which resulted in the successful processing and delivery of 600+ emails daily to more than 450 clients.- Wrote PostgreSQL functions to automate the generation of 28% of the daily software reports and alerts impacting over 250 active clients.-Utilized Apache Spark datasets to execute queries, explore, sort, and identify patterns in the data, resolving multiple data inquiries and ensuring the reliability and trustworthiness of our data for users.

-Created and launched a React Native app for Android and iOS, addressing the company's need for streamlined purchasing processes.-Utilized the Expo platform to streamline deployment and maintenance processes, as well as its Push Notifications module, optimizing efficiency in React Native app development and improving user retention rates.-Partnered with the backend team to seamlessly integrate REST APIs into the React Native application across multiple endpoints, ensuring seamless communication and data integrity, thereby enhancing overall system functionality and performance.

- Developed an Android application for the control and monitoring of records for a crane company, which has processed 9,000+ records.- Applied Material Design principles to design and build modern UI views using XML and Java in Android Studio, enhancing user experience and visual aesthetics for the application.-Utilized OkHttp, Retrofit, and Jackson libraries to efficiently handle data transmission between the application and the company's API across 18 endpoints, ensuring seamless communication and data integrity, thereby enhancing overall system functionality and performance.

- Developed an Android native Java application for the request of microloans, uploaded to the Play Store with 10,000+ downloads.- Integrated the Facebook SDK in the app to monitor downloads by advertising campaigns, as well as the AWS Mobile SDK to generate event analytics within the app, contributing to improved insights into user behavior and campaign performance.- Configured and integrated Firebase Cloud Messaging to enable push notifications delivery, thereby enhancing user experience and increasing user retention rates.