About / Spencer Zhao San Jose, CA

Cofounder & engineer

Hi, I'm
Spencer.

My background is in computer engineering. I co-founded CoreSpeed and build backend systems and products, from gateways and billing to app access and memory.

Portrait of Spencer Zhao
Spencer ZhaoSan Jose, CA

01 / Approach

The systems behind the product.

I design and build backend services, infrastructure, and user-facing products. That has meant authentication, tool access, memory, usage metering, billing, and the interfaces where people manage it all.

02 / Work

What I'm building.

01 / Current

CoreSpeed

Cofounder and engineer

My work spans the backend for app access, tools, and memory, plus gateway, metering, and billing systems across CoreSpeed products. Earlier products included PaaS, AG0, xclaw, and Sarea.

02 / Products

Independent work

BuildLog ↗ turns commits, PRs, and releases into draft posts. Fixo ↗ began in late 2024 as HMLS, a mobile-mechanic platform, and now helps repair shops draft estimates and schedule work with human review.

03 / Open source

Lore

Lore is memory infrastructure on Postgres and pgvector. Its evaluations ask whether retrieved context contains the answer-bearing evidence that actually reaches the model.

03 / Background

Computer engineering by training.

I earned an M.S. in Computer Engineering from the University of California, Irvine. My work spans backend systems, infrastructure, and hardware, from cloud platforms to earlier projects in Verilog and embedded power.

04 / Contact

Get in touch.