Full Stack Developer - Fintech, Java & React Expert

YASMINE THERESE KEITA Fargo, ND, United States

713-***-**** *******@************.*** https://www.linkedin.com/in/yasmine-keita-1202183a9/

PROFESSIONAL SUMMARY

Full Stack Software Developer with hands-on experience working in the fintech domain, specifically on payment processing and transaction-based applications in a production environment.

Strong experience developing backend services and microservices using Java, Spring Boot, Spring MVC, and Hibernate (JPA) to support business logic and data processing.

Experienced in building and consuming RESTful APIs for frontend integration and service-to-service communication.

Proficient in developing responsive frontend interfaces using React, Bootstrap, HTML5, CSS3, and JavaScript for customer-facing and internal applications.

Hands-on experience working with relational databases (MySQL, PostgreSQL) and NoSQL databases (MongoDB), including schema design and CRUD operations.

Exposure to event-driven and asynchronous processing using Apache Kafka, supporting internal system communication.

Experienced in Agile development environments, collaborating with cross-functional teams, and using Git, GitHub, Maven, and Postman for development, testing, and version control.

TECHNICAL SKILLS

Programming Languages -Java, JavaScript, SQL

Frontend Technologies-React, HTML5, CSS3, Bootstrap, JavaScript

Backend & Frameworks - Spring Boot, Spring MVC, Microservices Architecture, RESTful APIs, Hibernate (JPA), Backend Development

Databases - MySQL, PostgreSQL, MongoDB

Messaging & Integration - Apache Kafka, REST Integrations

Build, Version Control & Tools - Git, GitHub, Maven, Postman

Testing & Debugging - Unit Testing, Manual Testing, Debugging & Log Analysis

Operating Systems - Windows, Linux

PROFESSIONAL EXPERIENCE

Full Stack Developer

iQ Payment Engines Fargo, ND

May 2024 – Present

Develop and maintain full stack fintech applications supporting payment processing and transaction management workflows in a production environment.

Design and implement Java Spring Boot microservices to handle business logic, validations, and secure data processing.

Build and expose RESTful APIs for frontend and service-to-service communication using standard HTTP and JSON practices.

Use Hibernate (JPA) for ORM mapping, entity management, and database interactions with MySQL and PostgreSQL.

Develop responsive UI components using React, Bootstrap, HTML5, CSS3, and JavaScript to support customer-facing and internal tools.

Integrate frontend applications with backend APIs, ensuring data consistency, validation, and error handling.

Work with MongoDB for handling semi-structured data and supporting auxiliary application features.

Assist in implementing Kafka-based messaging for asynchronous processing and internal system communication.

Support authentication and authorization workflows, ensuring secure access to application features.

Participate in testing, debugging, and defect resolution, improving application reliability and performance.

Use Git and GitHub for version control, collaborating through feature branches, pull requests, and code reviews.

Contribute to technical documentation and actively participate in Agile ceremonies including sprint planning, daily stand-ups, and sprint reviews.

Environment:

Java, Spring Boot, Spring MVC, Microservices, REST APIs, Hibernate, Kafka, React, Bootstrap, JavaScript, HTML5, CSS3, MySQL, PostgreSQL, MongoDB, Git, GitHub, Maven, Postman, Agile

EDUCATION

Master of Science in Information Technology

Cumberland University, Kentucky

Expected Graduation: May 2025

Bachelor of Science in Finance

Minnesota State University of Moorhead, Minnesota

Graduated: December 2022

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