Kefan Zhang
@kefanzhang
Senior software engineer specializing in large-scale ad tech, data pipelines, and distributed systems.
United StatesWhat I'm looking for
I am a senior software engineer with 10+ years of experience building large-scale ad tech systems, data pipelines, and analytics platforms across companies like Netflix, Meta, and Microsoft.
At Netflix I engineered dynamic ad-insertion pipelines and integrated real-time targeting models, scaling systems to handle hundreds of thousands of ad requests per second while improving advertiser tooling with Next.js and D3 dashboards.
At Meta I developed Instagram Story Ads optimization, contributed to ads ranking services, and built advertiser dashboards and e-commerce features, improving engagement and monetization through engineering and ML integration.
I enjoy collaborating with product and data science teams, mentoring engineers, introducing architecture best practices, and delivering reliable, high-performance systems deployed on cloud platforms such as AWS and Azure.
Experience
Work history, roles, and key accomplishments
NEEngineered dynamic ad-insertion pipelines and real-time targeting integrated into Netflix's playback stack, scaling to hundreds of thousands of ad requests per second and improving advertiser self-service through reporting dashboards.
MESoftware Engineer
Meta
Jan 2020 - May 2023 (3 years 4 months)
Developed Instagram Story Ads optimization, advertiser dashboards, and low-latency ads ranking extensions, driving increased engagement and improved infrastructure efficiency for ad pipelines.
MIImplemented real-time co-authoring synchronization and frontend diff-merge UI for Office 365, scaled backend services on Azure Kubernetes Service to support millions of concurrent sessions.
Education
Degrees, certifications, and relevant coursework
UVUniversity of Virginia
Bachelor of Science, Computer Science
2014 - 2018
Completed a Bachelor's degree in Computer Science with coursework focused on software engineering and systems.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
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