Chief Technology Officer
Sophia Lee
Contact information
Experience & Education
2009 – 2013
Massachusetts Institute of Technology
Bachelor’s and Master’s degrees in Computer Science with a focus on machine learning and distributed systems. Thesis work on scalable inference for recommendation and personalization at scale.
Professional Experience
2014 – 2019
Worked as a Software Engineer and later Tech Lead in Ads and ML Infrastructure. Built and maintained systems for real-time bidding, audience modeling, and large-scale experimentation. Shipped models that improved campaign performance and attribution accuracy.
Current Role
2020 – Present
Nexsas
As CTO, leading the technology roadmap and engineering organization. Driving the adoption of AI/ML across our marketing platform—from predictive analytics and automation to secure, scalable infrastructure that supports our clients’ growth.
Key Responsibilities
- Define and execute the technical vision and architecture for Nexsas products
- Lead engineering, data science, and platform teams
- Ensure security, reliability, and scalability of our systems
