# Clifford Chan

> Sr. Software Engineer @ Liftoff

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

Experienced software engineer with a demonstrated history of working on system level, backend, and full-stack applications. Passionate about design concepts, data structures, and algorithms. I work well with others or alone, and enjoy helping teammates grow and learn as well. Bachelor of Science in Software Engineering from San Jose State University.

Technical Skills:
Programming Languages: Golang, Python, JavaScript, HTML5, CSS, JSON, Protocol Buffers
Frameworks: React, Node.js, Express, D3.js, Flask, gRPC, Twirp
Data: MongoDB, PostgreSQL, Kafka, Trino, s3
Tools: IntelliJ, Visual Studio Code, Github, Jenkins, Selenium, Postman

Check out some of my favorite projects:
https://clifford-chan.vercel.app/

## Work Experience
### Senior Software Engineer @ Liftoff Mobile
Jan 2024 – Present | Redwood City, California, United States
I develop and maintain Liftoff’s core real-time autobidding systems, handling over 3 million requests per second to optimize ad performance at scale. My work involves building high-performance, low-latency systems that drive efficient ad bidding. As well as collaborating closely with Machine Learning Engineers to integrate predictive ML models and statistical analysis techniques to enhance our bidding strategies with data-driven decision-making.

### Senior Software Engineer @ IBM
Jan 2016 – Jan 2024 | Silicon Valley Labs, San Jose, CA
Contributed to the maintenance, enhancement, and modernization of low-level storage
management components within the IBM Mainframe’s operating system z/OS, used by 70% of Fortune 500 companies.

Designed and developed new functionality requested by customers and offering management for the Virtual Storage Access Methods component of z/OS. Investigating and servicing technical issues encountered by customers and L2 technical support. Working alongside function and system testers to debug and resolve technical defects.

### Math Workshop Facilitator @ San Jose State University
Jan 2012 – Jan 2015 | San Jose, California
Facilitated 1 unit workshop classes which tutored students in mathematics varying from Precalculus to Multivariable calculus.

### IT Intern @ SLI Systems
Jan 2014 – Jan 2015 | San Jose, California
Enhanced the application responsible for managing the active directory, machine registry databases, and phone systems as well as provided hardware and software support for 50+ department staff.

Assisted in the migration from a legacy email server to Microsoft 365 Exchange.

### Software Engineering Intern @ BART
Jan 2014 – Jan 2014 | Oakland, California
Worked in the Fare Collection engineerings team to build a Java application which collects and process Linux CentOS system logs. The logs were stored in a PostgreSQL database and presented via web interface which can be queried for specific information.


## Education
### Bachelor of Science - BS in Computer Software Engineering
San José State University
Jan 2010 – Jan 2015


## Contact & Social
- LinkedIn: https://linkedin.com/in/clifford-chan
- Website: https://clifford-chan.vercel.app/

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Source: https://flows.cv/clifford
JSON Resume: https://flows.cv/clifford/resume.json
Last updated: 2026-03-22