**Jake Zhang**
Java Backend Developer
java.jake1zhang@gmail.com
415-860-1607

### **Professional Summary**
- 5+ years of experience in designing, developing, and implementing **Java/J2EE** applications.
- Expertise in **SDLC**, including requirements gathering, design, development, testing, and deployment.
- Strong knowledge of **OOP, Data Structures, Algorithms, Collections, Multithreading, and Exception Handling**.
- Hands-on experience with **Java 8+ features** (Lambda Expressions, Stream API, Functional Interfaces).
- Proficient in **Spring Framework** (Core, MVC, AOP, Data JDBC, Security, Boot, Cloud) and **Hibernate/JPA**.
- Skilled in **microservices architecture**, **RESTful APIs**, **SOAP**, and **GraphQL**.
- Experience with **Kafka, RabbitMQ** for asynchronous communication and event-driven systems.
- Strong understanding of **database systems** (MySQL, PostgreSQL, MongoDB, Oracle, Cassandra).
- Familiar with **AWS** (EC2, S3, RDS, EKS, SQS, SNS, CloudWatch) and **Docker/Kubernetes**.
- Proficient in **testing frameworks** (JUnit, Mockito, TestNG) and **CI/CD pipelines** (Jenkins, Maven, Git).
- Experience with **logging/monitoring tools** (Log4j, Splunk, Spring Actuator, Grafana).
- Strong problem-solving, analytical, and communication skills.

### **Technical Skills**
- **Languages:** Java, Python, JavaScript, SQL, HTML/CSS
- **Frameworks:** Spring Boot, MVC, Hibernate, JPA, Security, JUnit, Mockito
- **Databases:** MySQL, PostgreSQL, MongoDB, Oracle, Cassandra
- **Messaging/Streaming:** Kafka, RabbitMQ
- **Cloud/DevOps:** AWS, Docker, Kubernetes, Jenkins, Maven
- **Tools:** IntelliJ, Git, Splunk, SonarQube, Jira
- **OS:** Windows, Linux (Ubuntu, CentOS), macOS

### **Professional Experience**

#### **Nike, New York** *(Mar 2023 – Present)*
**Role:** Java Developer
**Project:** Real-time Inventory Tracking System
- Developed **microservices** using **Spring Boot** for inventory management.
- Implemented **Kafka** for real-time data streaming between warehouse and supplier systems.
- Used **Spring Data JPA/Hibernate** for database operations and **MySQL** for storage.
- Deployed services on **AWS (EC2, S3, RDS)** and managed containers via **Docker**.
- Improved efficiency by optimizing service logic and reducing inventory tracking complexity.
- Followed **Agile/Scrum** methodology with **Jira** for task tracking.

#### **Wells Fargo Bank, New York** *(Apr 2022 – Dec 2022)*
**Role:** Java Developer
**Project:** Online Banking Application
- Built **RESTful APIs** using **Spring MVC** for account management and payments.
- Integrated **Spring Security** with **OAuth2/JWT** for authentication.
- Used **React.js** for frontend development and **Nginx** for load balancing.
- Automated batch jobs using **Spring Task** with **cron expressions**.
- Deployed on **AWS** and managed CI/CD pipelines via **Jenkins**.

#### **Costco, New York** *(Feb 2020 – Sep 2021)*
**Role:** Software Developer
**Project:** E-commerce Recommendation System
- Developed **SOAP/RESTful** services for real-time product recommendations.
- Used **Hibernate** for ORM and **MySQL** for data storage.
- Implemented **MVC** with **Struts** and **Spring DI/IoC** for modularity.
- Optimized performance using **multithreading** and **caching**.

#### **Expedia, New York** *(Dec 2018 – Sep 2019)*
**Role:** Software Developer Intern
- Enhanced booking platform using **Spring MVC** and **Hibernate**.
- Implemented **OAuth2** for secure user authentication.
- Optimized data models and exception handling for better UX.

### **Education**
- **M.S. in Computer Science**, New York University, NY
- **B.S. in Computer Science**, Rutgers University, NJ

*(Formatted for clarity and conciseness while retaining key details.)*

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