James Walker
Chief technology officer (CTO)
Chief technology officer (CTO)
James Walker
Leading with expertise in AI, technology, and team collaboration to deliver impact for our customers.
Contact information
My experience & years of education
2005 – 2009
Stanford University
B.S. and M.S. in Computer Science with a focus on distributed systems and machine learning. Research in large-scale infrastructure and early neural network applications. Thesis on fault-tolerant distributed training.
Professional experience
2009 – 2016
Software Engineer then Senior Engineer. Built and led teams for search infrastructure and later cloud ML tooling. Shipped production systems serving millions of queries per second. Led migration to tensor-based serving pipelines.
Now my work station
2020 – 2025
Nexsas
Leading technology strategy, platform architecture, and engineering. Responsible for AI/ML roadmap, security posture, and scaling the product to enterprise customers. Oversee infrastructure, data, and product engineering.
Responsibilities
- Technology strategy and platform architecture
- AI/ML roadmap and engineering leadership
- Security, scalability, and engineering excellence
Our Core Values
Collaboration
We work together across disciplines to build better products and support each other.
Integrity
We are transparent, accountable, and committed to doing the right thing for our users.
Innovation
Increase open and click rates with AI-optimized content and continuous improvement.
Inclusion
We value diverse perspectives and create a place where everyone can contribute and grow.
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