SUMMARY

• A talented, creative and self - motivated Java Developer with more than 6 years experiences who has a demonstrated history of developing complex enterprise web applications.
• Expertise in working with Core Java concepts like Collections, Multithreading, Data Structures, Exception Handling and Serialization.
• Experienced in frameworks like Spring, Hibernate.
• Proficient in Java/J2EE Design Patterns including Singleton, Command Model View Controller (MVC), Data Access Object (DAO), and Business Delegate.
• Experience in MVC architecture, spring framework, J2EE Design Patterns, Spring IOC and Hibernate.
• Ability to develop a high-performance system with scalability and capability.
• Proven skills in improving system performance using concurrency and algorithm.
• Having knowledge of Cloud-based web application development like AWS.
• Able to work with both SQL and NoSQL database.
• Quick learning and highly capable of contributing to the full software development lifecycle (SDLC).
• Passionate about collaborating with cross-functional team members to broaden expertise and deliver optimal solutions.

TECHNICAL SKILLS

Programming Languages: Java, Python, C++, JavaScript, Bash Shell

Machine Learning: Tensorflow, Caffe

Database: MySQL, DynamoDB

Others: AWS, Spring boot, Spring MVC, Node.js, Linux, Git, Docker, OAuth, JSON

PROFESSIONAL EXPERIENCE

Confidential

Software Engineer

Responsibilities:

• Built a web application for online transactions from scratch using Java, Spring MVC and Spring Boot.
• Designed and developed RESTful APIs to handle HTTP requests and responses from frontend and third-party APIs
• (NihaoPay APIs, APEX APIs, etc.).
• Created a relational database (MySQL) to store corporate and personal financial info and utilized Hibernate to support database operations with JDBC authentication provided by Spring Security.
• Designed and implemented the filtering algorithm to guarantee the validity and accuracy of the transactions and currency exchange orders, prevent 3 types of potential frauds in the simulation environment.
• Worked directly with vendors and other API providers as the company representative to collected business requirements, arrange workflows and establish system-level communication protocol.
• Deployed the backend server on AWS EC2 and monitored the real-time trading (fixed multiple critical issues)
• Implemented RESTful APIs to support sign-up workflows with email validation using Amazon SES, and secured private information with encryption; Also introduced APIs to support currency exchange function with NihaoPay APIs, and filtering algorithm to secure transactions.

Confidential, San Jose, CA

Java Developer

Responsibilities:

• Used Spring 3.0 MVC framework
• Used Web Services (Restful) to exchange information.
• Used Hibernate for back end development and spring dependency injection for middle layer development.
• Developed MVC design pattern based UI using XML, and Spring.
• Applied OOP concepts, including UML use cases, class and interaction diagrams
• Worked on gathering requirements from stakeholders and performed Design & Analysis of the Customer Specifications.
• Actively involved in defining and designing the tiers of the applications and implementation with core Java and J2EE best design practices.
• Worked with core java concepts such as OOPs, Multi-threading, collection framework and Exception handling.

Confidential

Java Developer

Responsibilities:

• Participated in various stages of the project life cycle mainly design, implementation testing, deployment and enhancement of the application.
• Applied Agile methodologies for software development
• Analysis and Designing new enhancements for every release. Had good experience in low-level designs.
• Proficient in doing Object Oriented Design using UML-Rational Rose.
• Used RESTful Webservices to extract product and warranty information.
• Implemented business logic using Session beans and Stored procedures.
• Wrote SQL queries, PL/SQL stored procedures and modifications to existing database structure.
• Developed Scripts for UNIX platform deployment.
• Used ANT for compilation and building JAR, WAR and EAR files.
• Used JUnit/Eclipse for the unit testing of various modules.
• Experience in debugging the issues and resolving the production/test issues.

Confidential

Java Developer

Responsibilities:

• Designed and implemented customized dashboard applications, extracting data from business systems to display relevant information and generate dynamic reports.
• Coordinated with the client and upper level management, as well as cross-functional teams to test the solutions for production issues and customizations.
• Performed software development utilizing technologies such as core Java, J2EE, Spring Framework, Hibernate.
• Interacted with business users and collected the requirements. Analyzed business requirements, designed and recommended solutions over Agile Methodologies.
• Developed web pages using HTML, CSS, JavaScript and AJAX.
• Worked with the deployment of code using Jenkins.
• Created backend tables/stored procedures and SQL for database access.
• Installed testing and production environments, and wrote test cases and documentation.