Data Quality Web Application

Chao Zhao

ceciliazhao* cecilia-z > *******@*******.*** Ó 925-***-****

Education

San Francisco Bay University, Fremont, CA Jan.2023 – Aug.2024 M.S. in Computer Science GPA: 3.79/4.0

Shandong University, Shandong, China Aug.2013 - Jun.2017 B.S. in Electrical Engineering and Automation (Excellent) GPA: 90.6/100 Job Experience

State Grid Corporation of China Sept.2017 – Jan.2023 Technical Engineer, Academic College Hire Shanghai, China

• Guaranteed data quality and 0 error rate on managing carbon emission reduction project database with SQL queries, conducted data governance, data capture, process design, data quality control, data integrity maintenance, and data architecture, which resulted in efficiency improvement.

• Maintained successful implementation of over 80 international trade projects, conducted cost benefit analysis and budget allocation, cultivated germane cooperation relationship with external stakeholders, and business partners overseas (e.g., Bell Helicopter, Airbus Helicopter).

• Secured over 10 million dollars profits for 5 EPC investment projects by making investment decisions and monitoring investment performance, applied asset allocation data models, finance transformation and manager selection recommendations.

• Applied machine learning algorithms to optimize resource allocation and improve predictive maintenance systems.

Project

Flight Ticket Reservation Web Application Apr.2021 – Jan.2022 Full Stack Developer Shanghai, China

• Developed a flight ticket booking platform with hotels and car rent options for customers.

• Built the web application with a microservice using Spring Boot and MyBatis for backend, Vue.js and Node.js for frontend.

• Stored customers and trip orders information into MongoDB to allow efficient access of massive data.

• Accessed SkyScanner Flight APIs to query for the flight information demanded by users.

• Increased the concurrency of order placing through Apache Kafka message queue. Real-time Shanghai City Traffic HeatMap Apr.2019 – Feb.2020 Backend Developer Shanghai, China

• Deployed the web application on GCP with MySQL.

• Developed the interactive web page using Google Map APIs and JavaScript. Built the backend on Flask.

• Fetched real-time 1000+ road conditions and traffic density with open APIs and processed with Spark Stream- ing. Preprocessed RDD data with Spark filtering, duplication removal and K-means clustering.

• Reduced running time from 10 min to 20 sec with asynchronous requests, keep-alive and FAIR scheduler. Online Shopping Platform May.2020 – Jan.2021

QA Automation Engineer Shanghai, China

• Developed and implemented automation frameworks from scratch, enhancing testing efficiency and reliability.

• Created and managed CI/CD pipelines, ensuring smooth and continuous integration and deployment.

• Utilized WebdriverIO, Cypress, Selenium, Puppeteer, TestCafe, Postman, REST Assured, and jMeter for web automation testing.

• Collaborated with cross-functional teams to integrate automation tests within the development pipeline.

• Conducted black box, white box, regression, and performance testing, identifying and resolving critical defects.

• Improved team communication and transparency by applying Scrum/Agile methodologies. Instant messaging web application (WhatsApp like) Jun.2018 – Oct.2018 Backend Developer Shanghai, China

• Developed an instant messaging software and implemented basic personal communication and group chat, file transfer, well-designed user interface and chat record maintenance.

• Built the chatting service based on Mattermost open-source framework, using websocket as the transport layer protocol served listening and receiving of client and server.

• Used React to build user interface for chatting and file transfer. AI-Powered Carbon Emission Reduction Jul.2020 – Feb.2021 Data Scientist Shanghai, China

• Leveraged AI and data analytics to optimize carbon emission reduction strategies.

• Developed predictive models to forecast emission levels and recommend reduction measures.

• Achieved a 15 percentage reduction in carbon emissions through data-driven insights. Technical Skills

Programming languages: Java, Python, C Web Technologies: HTML, CSS, JavaScript, Node.js Tools: MySQL, AWS, GCP, Kafka, Heroku, Django Frame: SpringBoot, React, RESTful API, Mattermost

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