Aaron Rivera is a seasoned software leader and serial technical co-founder with 13 years of experience building production AI, cloud, and real-time visualization systems. As CTO of BuildCognition and previous co-founder roles at Xandria AI and Guidekick, he has delivered document-AI, RAG search, and Unity-based 3D mapping solutions deployed at scale for enterprises and museums. He blends hands-on engineering—from fine-tuning DONUT/LayoutLM models and deploying on SageMaker to C++ geometry processors and Postgres-backed microservices—with product-minded architecture and domain-driven design. Aaron has shipped consumer-facing apps and SDKs reaching millions and has a knack for turning complex spatial and document problems into reliable, automated pipelines. Based in Oakland, he pairs an MS in Computational Perception & Robotics with practical experience across AWS, ELK, Unity, and cross-functional teams. Less obvious: he repeatedly moves between deep research-driven ML work and pragmatic engineering to get models and visualization tech into production.
13 years of coding experience
11 years of employment as a software developer
California Polytechnic State University, San Luis Obispo
Master of Science - MS, Computational Perception & Robotics, Master of Science - MS, Computational Perception & Robotics at Georgia Institute of Technology
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