Java Developer Stack

Hiep Huynh (US Citizen) Watertown, NY

315-***-**** **********@*****.*** https://www.linkedin.com/in/hiephuynh/ github.com/OhMyHiep

PROFESSIONAL SUMMARY :

● Full Stack Java Developer with 2 plus years of strong experience in designing, building, and deploying enterprise-grade applications across finance, healthcare, and smart technology domains.

● Skilled in Java (8/11/17), Spring Boot, Hibernate, and Microservices, delivering secure, scalable, and high performance backend systems.

● Experienced in frontend development with React.js, HTML5, CSS3, Bootstrap, and TypeScript, ensuring responsive and user-friendly applications.

● Proficient in SQL/NoSQL databases (PostgreSQL, Oracle, MySQL, MongoDB) with expertise in query optimization, ORM frameworks, and JDBC integration.

● Hands-on with cloud and DevOps tools: AWS, Maven, Git, enabling CI/CD automation and cloud-native deployments.

● Knowledgeable in testing frameworks and QA automation: JUnit, Mockito, Selenium, TestNG, Cucumber, and Postman ensuring high-quality releases.

● Strong background in Agile/Scrum, secure coding practices, API design, and system integration, with a proven ability to collaborate across teams and deliver business value.

TECHNICAL SKILLS :

Languages & Frameworks: Java (8/11/17), Spring Boot, Spring Cloud, Hibernate, JSP, Servlets, JDBC, React.js, JavaScript (ES6+), HTML5, CSS3, Bootstrap, Python, Pandas

APIs & Middleware: REST APIs, SOAP,, OpenAPI/Swagger, Google Sheets API

Databases: Oracle SQL, PostgreSQL, MySQL, MongoDB

Cloud & DevOps: AWS (EC2, RDS, S3, Lambda), Maven, Gradle, Git, GitHub, YAML

Testing & Monitoring: JUnit, Mockito, Selenium, Cucumber, TestNG, Postman, ELK

Security & Compliance: Spring Security, OAuth2, JWT, HIPAA Compliance

Tools & Platforms: IntelliJ IDEA, Eclipse, VS Code, JIRA, Confluence

Methodologies: Agile/Scrum, SDLC, TDD, BDD, CI/CD

PROFESSIONAL EXPERIENCE :

Yonder Heaven Trading LLC Watertown, NY

Backend Developer Intern 01/2025 – Present

● Automated data pipelines in Python, significantly reducing manual work and ensuring clean datasets across thousands of records.

● Built a cloud-based persistence layer for storing and retrieving financial datasets, enabling faster trading analysis.

● Enhanced backend reliability with modularized code and robust error handling, reducing data inconsistencies.

● Developed RESTful API integrations with Google Sheets and internal systems, streamlining reporting workflows.

● Supported analysts in data-driven strategy simulations and analytics through optimized backend processes. Environment: Python, Pandas, RESTful APIs, Google Sheets API, YAML, Git

Revature Reston, VA

Full Stack Java Developer 05/2022 – 09/2023

● Delivered REST APIs and WebSocket services, enabling seamless device-to-cloud communication in real time.

● Implemented PostgreSQL persistence with Hibernate ORM, streamlining storage of device logs and customer settings.

● Validated reliability through unit and integration testing (JUnit, Mockito).

● Collaborated with engineers and QA teams under Agile Scrum, contributing to sprint demos and code reviews.

● Designed REST APIs with JWT authentication, enabling secure system integrations.

● Tuned PostgreSQL queries with Hibernate/JDBC for performance optimization.

● Automated testing with JUnit, Mockito, and Cucumber, ensuring stable deployments.

● Deployed solutions to AWS cloud environments (EC2, RDS, S3).

● Worked with cross-functional Agile teams to deliver business-critical healthcare modules.

Environment: Java 11, Spring Boot, Hibernate, PostgreSQL, REST APIs, JWT, AWS, Jenkins, Git, Cucumber

BeaconFire (Internship) East Windsor, NJ

Full Stack Java Developer 02/2022 – 05/2022

● Built Spring Boot APIs integrated with Hibernate and MySQL, supporting financial workflows.

● Developed JSP and JSTL-based UI components for reporting dashboards.

● Created REST APIs for communication across backend modules.

● Validated API endpoints using Postman and automated test scripts with JUnit.

● Implemented Spring Security role-based authentication for internal systems.

● Supported AWS deployments using Maven and Docker.

● Assisted in debugging and performance optimization.

● Documented API architecture and workflows for developer onboarding.

Environment: Java 11, Spring Boot, Hibernate, JSP, Servlets, MySQL, REST APIs, Spring Security, AWS, Maven,, Postman, Git

EDUCATION :

Bachelor of Science in Computer Science Le Moyne College Syracuse, NY GPA: 3.42 / 4.0 Dec 2021

AWARDS/CERTIFICATIONS :

● Medal of Excellence in Computer Science — Le Moyne College

● Java Full Stack Nanodegree — Udacity

ACADEMIC PROJECTS :

Bug Tracker Web App JavaEE, Javalin, Selenium, Cucumber, PostgreSQL (AWS)

● Built a bug tracking platform with REST APIs, JWT authentication, and PostgreSQL persistence.

● Created responsive UI with Bootstrap and JavaScript for seamless bug reporting.

● Automated testing with Selenium, JUnit, Mockito, and Cucumber.

● Deployed on AWS cloud for scalability.

Quiz Application JavaEE, Spring Boot, Hibernate, MySQL

● Built a quiz platform with Spring Boot and Hibernate ORM.

● Created JSP/JSTL front-end with Bootstrap styling for usability.

● Implemented session-based authentication for secure participation.

● Integrated MySQL database with JDBC/Hibernate for persistence and evaluation.

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