# Sijie Liang

> Staff Software Engineer, Ad Monetization at Activision Blizzard

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/sijie

A software engineer with deep industry experience in backend and data pipeline development. Passionate in building high performance and realtime distributed platforms.

## Work Experience
### Staff Software Engineer, Ad Monetization @ Activision Blizzard
Jan 2021 – Present | San Francisco Bay Area

### Senior Software Engineer, Ad Monetization @ Activision Blizzard
Jan 2020 – Jan 2021 | San Francisco Bay Area
• Led the mediation service migration project to Google Cloud Platform from in-house infrastructure
• Implemented double caching module using Redis and In-Memory LRU to support fast data access in mediation service
• Reduced the dependency of database module (MySQL) by redesigning data format as object and storing into Google Cloud Storage

### Software Engineer, Ad Monetization @ Activision Blizzard
Jan 2018 – Jan 2020 | San Francisco Bay Area
• Supported dynamic multifurcation of demand waterfall for every request by integrating rule engine service using Drools framework
• Enabled dynamic rule loading and runtime updates by decoupling the rule engine module into different micro services. 
• Highly participated from architecture prototype, database schema design, implementation, and end to end testing

### Software Engineer @ Linqia
Jan 2017 – Jan 2018 | San Francisco Bay Area
• Designed and implemented the distributed data pipeline using Kafka and Spark to improve data processing efficiency and support scaling of the backend system 
• Developed and maintained microservices for Linqia Platform using RESTful API, Hibernate, ElasticSearch and Kafka
• Wrote RESTful APIs for Linqia Library to support Linqia Platform between backend and frontend sides
• Implemented monitoring scripts for data integrity and webpage access with Nagios

### Software Engineer (Intern) @ Accenture
Jan 2016 – Jan 2016 | Shenzhen, Guangdong, China
• Designed and implemented system features, and updated SQL for searching queries
• Created test cases based on business requirements and improved system performance through stability and vulnerability testing under SIT environment
• Resolved defects and ensured system robustness and software functionalities fully satisfy specifications

### Data Research Assistant @ University of Rochester
Jan 2014 – Jan 2014 | Rochester, New York Area
• Researched datasets reflecting different user behaviors on venue basis from public data sources
• Collected weather data of eight cities in the United States as a proxy measure for venue variety
• Helped to process datasets for research using Stata and SPSS

### Management Information Analyst (Intern) @ Lloyds Banking Group
Jan 2013 – Jan 2013 | London, United Kingdom
•	Facilitated development of reports and on-demand analysis to aid decision making for internal administration
•	Conducted MI analysis for financial sales then presented findings to managers
•	Assisted to produce and manage weekly resource tracker reports using Access and Excel


## Education
### Master’s Degree in Information Systems Management
Carnegie Mellon University - Heinz College of Information Systems and Public Policy

### Bachelor’s Degree in Financial Economics
University of Rochester

### Bachelor’s Degree in Applied Mathematics
University of Rochester

### Certificate in Actuarial Studies
University of Rochester

### Business Administration and Management in General
Syracuse University - Martin J. Whitman School of Management


## Contact & Social
- LinkedIn: https://linkedin.com/in/sijie-liang-b1b09048

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Source: https://flows.cv/sijie
JSON Resume: https://flows.cv/sijie/resume.json
Last updated: 2026-03-29