Java developer, full- stack developer, software developer

Minghua Lei

Boston, MA ***.***@************.*** 617-***-**** http://www.linkedin.com/in/minghualeifix https://fixlei.github.io/ePortfolio/ PROFESSIONAL SUMMARY

Computer Science graduate student with strong foundations in software engineering, relational database design, and backend systems. Proficient in Java, Spring Boot, and SQL, with additional experience in frontend development using React. Builds well-structured, maintainable systems across a portfolio of self-initiated and team projects. EDUCATION

Northeastern University Boston, MA

Master of Science in Computer Science. Expected August 2027 Relevant Coursework: Program Design Patterns (CS 5010), Database Management Systems (CS 5200), Cybersecurity (CY 5770) Northeastern University Boston, MA

Bachelor of Science in Information Technology. 2025 Relevant Coursework: Operating Systems Concepts, Database Websites, Web and Mobile Development, E-Commerce Systems, IT Project Management, Systems Analysis and Design

Bunker Hill Community College Boston, MA

Associate of Science in Computer Science. 2023

Relevant Coursework: Data Structures and Algorithms (Java), Advanced Java (Maven, Servlet, Tomcat), SQL (Oracle), C++ I and II

PROJECTS

EDI Purchase Order Simulator

Java 17, Spring Boot 3.2, REST, JPA, H2, Maven

• Developed a backend procurement-automation service in Java 17 and Spring Boot 3.2, simulating B2B purchase-order exchange between hospitals and suppliers based on Philips Healthcare EDI workflows

• Implemented an ANSI X12 850 generator covering standard ISA/GS/ST segments without third-party libraries, organized within a layered Spring architecture: Scheduler, Service, Generator, and REST Controller

• Engineered a Spring @Scheduled monitor with 30-second polling across 4 medical products, triggering EDI 850 PO generation per reorder event with Spring Data JPA and H2 audit trail logging Restaurant Order System

Java, JDBC, MySQL

• Designed a normalized (3NF) relational database in MySQL with 9 interconnected tables, enforcing data integrity via primary and foreign key constraints across a multi-role ordering system

• Implemented a Java application layer using JDBC to handle end-to-end ordering: authentication, menu browsing, cart-based order creation, payment processing, and order-status tracking via multi-table JOINs

• Delivered role-based access for customer and admin users with full CRUD operations and ER model documentation Hospital Billing System

Java, Visitor Design Pattern, OOP

• Applied the Visitor design pattern to decouple billing logic from patient and department classes, enabling new billing rules without modifying existing domain objects

• Modeled 4 billing categories as concrete visitor classes, reducing conditional branching and improving testability Toy Shop Web App

React, Vite, JavaScript, Vercel

• Built a full-stack e-commerce app in React and Vite with a product gallery, authentication, and cart via React Hooks

• Deployed to Vercel with custom root-directory build configuration, resolving pipeline issues and achieving sub-2s load time E-Commerce Music Platform

Stripe REST API, Scrum, Jira, WIX

• Integrated Stripe REST API for payments, donations, and checkout on a live platform, including user registration flows

• Maintained delivery schedule after team size reduced from 4 to 2 by reprioritizing scope across Scrum sprints in Jira SKILLS

Languages: Java, SQL, Python, JavaScript, HTML5/CSS3, C++ Frameworks & Libraries: Spring Boot, Spring Data JPA, JUnit, React, Vite Databases & Platforms: MySQL, Oracle 12c, MongoDB, JDBC, H2, Git/GitHub, Vercel Concepts: OOP, Relational Database Design, REST APIs, Design Patterns (Visitor, Command, MVC), EDI (ANSI X12) Tools: IntelliJ IDEA, Maven, Jira, VS Code

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