Information Technology Software Engineer

EDUCATION

Master of Computer and Information Technology

University of Pennsylvania

**/**** ************, **

Relevant Courses: Software Development, Computer Systems, Data Structures and Algorithm, Software Design, Blockchain and Cryptography, Discrete Mathematics, Database and Information Systems, Artificial Intelligence Bachelor of Arts

Nanjing University

06/2018 Nanjing, CN

People's scholarship, 2015, 2016 and 2017

SKILLS

Programming Languages: Java, Python, C, SQL, HTML, CSS, JavaScript Tools: Git, Maven, Docker, Postman, JDBC, Jenkins, Elastic Search, MyBatis, AWS, Postgres, Google Cloud, Jupyter Notebooks, Tableau

Frameworks: Spring Boot, Camunda BPMN, Pandas, NumPy, Matplotlib IDE: IntelliJ, Eclipse, Visual Studio Code, Pycharm PROFESSIONAL EXPERIENCE

Software Engineer (Contractor)

Worldwide Express

10/2022 – 11/2023 Dallas, TX

•Spearheaded the development of batch shipment flows, seamlessly integrating new services and aligning them with existing workflows

•Pioneered the creation of templates from scratch, contributing to improved efficiency and system adaptability

•Collaborated closely with the front-end team to seamlessly integrate back-end services into the overall system architecture

•Developed and maintained back-end software utilizing Java, Camunda BPMN, Postgres Database and Elastic Search

•Conducted rigorous testing using Junit to uphold superior code quality and prevent the introduction of bugs into the production environment

•Collaborated closely with the QA team to identify, address, and rectify bugs, thereby enhancing overall software reliability

•Utilized Postman to rigorously test APIs and promptly troubleshoot issues as they arose

•Played a pivotal role in data migration by utilizing Postgres queries and syncing with Elastic Search to ensure data accuracy and consistency

•Enhanced error handling through the implementation of a robust POJO error handling mechanism, which contributed to improved system reliability and error resolution

•Implemented a feature flag version control system, allowing for seamless feature toggling and enabling quick, controlled rollouts of new functionality while minimizing potential disruptions in the production environment

•Maintained a high standard of code quality and consistency by diligently following the company's prescribed code style guidelines, improved code readability and ensured that the development team could work together seamlessly to maintain and enhance the software

•Actively contributed to the team culture by assisting new team members in their transition, offering guidance, sharing knowledge, and providing support, which expedited their integration into the team and enabled them to become productive more quickly

•Demonstrated the ability to work both independently and as part of a team, with regular code reviews and daily standup meetings to ensure project alignment

Technologies: Java 11, Spring Boot, Camunda BPMN, Jenkins, Elastic Search, Postman, Git, Github, IntelliJ, Jira, myBatis, Postgres Database, JUnit testing

Java Developer

Antra, project with Walmart

03/2022 – 08/2022 Dulles, VA

•Developed and implemented Spring Boot Java applications to support and rank offers for 1st and 3rd sellers from walmart.com

•Tested the code with Postman, resolving technical issues through debugging, research, and investigation

•Visualized populated data from BigQuery with tableau and represented dashboards for manager and associates

•Updated data transfer object, designed new flag to the Postman response and worked with BigQuery Schema E2E flow

•Implemented Core Java concepts as collection, exception handling and multi-threading to design and maintain applications

•Optimized java 8 Lambda expressions along with streams functions to create internal iteration and perform chain operations such as filter, map and collection.

•Created MySQL relational database to store data like product stock, transactions, suppliers, customers and orders Technologies: Java 8, Java 17, Spring Boot, Postman, Git, Github, IntelliJ, Jira, Google Cloud, Bigquery, Tableau, Splunk, lambda, JUnit testing, Walmart Cloud Native Platform U.S. Permanent Resident sangsangyuxi@Yuxi gmail.Sang com 347-***-**** Seattle, WA

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