SUMMARY:

• Over 5+ years of solid professional experience in development of multi - tier Enterprise applications.
• Experienced in all the technical phases of Software Development Life Cycle (SDLC).
• Experience in developing distributed Web applications and Enterprise applications using Java (Core Java (JDK 6+), Spring, Spring Boot).
• Experience using frameworks like Spring, JPA, Hibernate.
• Strong development experience creating rich frontend UI in AJAX, JavaScript technologies using JavaScript libraries like jQuery, Node JS, React, Redux.
• Expertise in Web-Development technologies like HTML5, JAVASCRIPT, CSS3, SASS, XML.
• Skilled at programming in JAVA applications using various IDE tools intellij and NetBean.
• Experienced in working with Hibernate annotations to map POJOs to databases.
• Experienced with J2EE Design Patterns such as MVC, DAO, DTO, Singleton Pattern and Front Controller.
• Experienced in developing web services with XML based protocols such as Microservices.
• Extensive experience using SQL to write Stored Procedures and Functions.
• Proficiency in working with all databases like Oracle, MySQL, SQL Server, Postgres.
• Good knowledge of various design patterns like singleton, Strategy pattern and factory pattern.
• Excellent problem solving, analytical and interpersonal skills.
• Familiar with MEAN stack, Node with Express framework, NoSQL like MongoDB with dynamic schemas.
• Experienced with Redis, WebSocket, Passport to develop multi-tier application.
• Ability to work in-groups as well as independently without supervision.
• Excellent Technical, Analytical, Problem Solving skills, strict attention to detail and ability to work independently, work within a team environment.
• Excellent communication skills, interpersonal, strong architectural skills, hardworking and a very good team player and ability to effectively communicate with all levels of the organization such as technical, management and customers.

TECHNICAL SKILLS:

Programming: Java, Python, Node, R.

Java Technologies: Microservice, REST(JAX-RS), HIBERNATE, SOAP, Socket Programming.

Web Technologies: JavaScript, jQuery, Node.JS, HTML5, CSS3 (SASS), Bootstrap, React, Redux.

Operating Systems: Microsoft Windows, Linux/Unix BASH, Command Line.

Databases: MS SQL Server 12.0, Postgres, MySQL, Redis.

Cloud: AWS (Amazon Web Services) EC2, S3.

Java IDE’s: Intellij.

Frameworks: GIT/Gitlab, Apache Tomcat, Struts2, Spring, MVC, Heroku, Play.

Testing Frameworks: Agile Testing, J-Unit, TestNG, Postman.

PROFESSIONAL EXPEREINCE:

Confidential, Piscataway, NJ

Java/J2ee Developer

Responsibilities:

• Work in Confidential for backend service monitoring, performance analysis and optimization using Java, Akka, Play and Kafaka.
• Create RESTful API documents with swagger, an API developer tools for the OpenAPI Specification (OAS).
• Use Redis to get Cache data, such as mdn, skuid, storeid.
• Add routing rules to enhance web service latency.
• Maintain and optimize latency and fault- tolerance by replacing previous implements.
• Use Kibana to complete migration, integration of new service performance analysis.
• Collaborate with other teams to handle business enhancements.
• Analyze JSON/XML data, debug code to solve existing defects.
• Reuse existing code with additional changes to construct other request and service response.
• Review teammate merge requests on GitLab.
• Use Postman to test backend service call and create unit test with Akka TestKit.

Environment: Core Java8.0, Akka, Play, Kafka, Oracle, Redis, Memcached, Swagger, Kibana, Cloud microservices, Postman, JSON/XML, React, Git/GitLab, Unit Test.

Confidential, New York City, NY

Software Engineer (Backend)

Responsibilities:

• Worked in Confidential for backend service monitoring, performance analysis and optimization using Java, Spring boot and Ribbon, Zuul.
• Developed RESTful APIs and workflow in a distributed environment for cascading failure, such as Hystrix and Turbine.
• Created RESTful API documents with swagger, an API developer tools for the OpenAPI Specification (OAS).
• Used Hibernate to get data, such as food type, order time from database.
• Added routing rules for new microservices.
• Maintained and optimized latency and fault- tolerance by replacing previous implements, such as from MySQL cluster to PostgreSQL, Memcached to Redis, Retry pattern to circuit break pattern.
• Completed migration, integration and adoption of new service performance analysis.
• Developed new load balancing algorithms with Availability Filtering mode and weighted Response Time mode besides Round Robin mode.
• Automated tests with TestNG reached code coverage of 99%.

Environment: Core Java8.0, Spring, Spring Boot, MySQL, PostgreSQL, Redis, Memcached, Swagger, GitTestNG, Cloud microservices, Postman, Navicat Premium12

Confidential, Los Angeles, CA

Software Engineer (Full stack)

Responsibilities:

• Contributed to Customer Service team who designed and developed new user login function with Google APIs.
• Implemented user login authentication by middleware, Passport.js.
• Authorized redirect URI’s after authentication success or fail.
• Set up Nodemon to synchronized development.
• Handled front-end payments/credits module with REST API.
• Implemented Checkout component with StripeKey and token at front-end.
• Handling backend to front end routing in production mood.
• Deploying development remotely on AWS Cloud using git.
• Set up testing suite and applied TDD with Mocha.

Environment: Node.JS, Express.JS, Mocha, HTML5, CSS3, React, Redux, NPM, REST API, Mongoose

Confidential

Java Developer

Responsibilities:

• Worked on REST API to dispatch orders and determine dynamic prices using Spring framework.
• Used Spring boot and MVC module to develop REST API
• Improved the dispatching and pricing model by adding more features into consideration.
• Used twemproxy to change redis sentinel mode to proxy + consistent hashing mode and improved redis latency by 30%.
• Set up AWS S3 storage and backed up local files to AWS S3 using AWS Cli.
• Completed migration, integration and adoption of new service performance analysis.
• Developed new load balancing algorithms with Availability Filtering mode and weighted Response Time mode besides Round Robin mode.
• Automated tests with TestNG reached code coverage of 99%.
• Reporting and fix failed patches weekly/monthly. Provide status of software pushes.
• Developing checklists, guides, best practices and procedures to support patch management process.

Environment: Core Java8.0, Spring, Spring Boot, MySQL, PostgreSQL, Redis, Memcached, Swagger, GitTestNG, Cloud microservices, Postman, Navicat Premium12

Confidential

Software Engineer (Oracle)

Responsibilities:

• Cooperate with team member to write a C# app to speed up search.
• Design, implement and deliver software and infrastructure to improve the scalability, availability, performance, latency, and efficiency of data transfer.
• Project was honored as the most outstanding project of 2014.
• Managed a 3-person team for data exchange, cleaning, and sharing with Oracle on water conservancy information resources.
• Perform deep dives into reliability issues; partner with software and systems engineers across the organization to produce and roll out fixes.
• Hands on experience scripting with C#, Oracle.
• Windows system programming or driver development.
• Develop simple tools to support analysis work or to parse data from various data structures to database.
• Statically analyze shell code, packed and obfuscated code and the associated algorithms.

Environment: Oracle, C#, Windows platform, Database