I build that work.

Products shipped Across 5 companies
Revenue scaled $500K+
Specialized in Forward Deployed Engineering
AI software engineer

Worked with

The Hog
Kepler
Y Combinator
The Hog
Kepler
Y Combinator
About Me
Fisher Zhang in Yosemite

I build AI systems end to end.

I find the pain, build the product, and stay until people use it. Across five companies I built agents, APIs, and infra that run in production, including Civ's AI platform supporting $200K+ in revenue and The Hog's research API that 500 consumers hit in the first week.

  • AI infrastructure
  • Product engineering
  • Agent systems
  • Applied ML
  • Developer platforms
  • Production operations

Selected work

Civ Robotics / SolarIntel

An AI operating system for infrastructure sales. Built with the CEO and COO, adopted by the team every day, and behind more than $200K in revenue.

Actionable leads
4,000+
Research per lead
~1 hr → <5 min
Revenue supported
$200K+
AI SYSTEMSALES OPS See more

The Hog

An API platform for deep web research and enrichment. A provider waterfall behind production endpoints, a durable agent runtime, and metering that knows who ran what.

First week
500+ consumers
State
Redis
Sandboxes
AWS Fargate
APIRUNTIME See more

Kepler AI

Infrastructure for long-horizon bioinformatics agents. Each conversation gets its own Firecracker VM, a persistent S3 workspace, and state that survives a crash.

Database writes
~95% fewer
Agent tools
~10
Recovery
Interrupts + atomic locks
AGENTSBIOINFORMATICS See more

AsyncHealth

Chunked, speaker-diarized transcription plus a risk classifier that flags symptom and suicide-risk signals for a clinician to review. The model queues; the clinician decides.

Weekly volume
200+ sessions
Recall
91%
Flagged for review
10+ / week
APPLIED MLHEALTHCARE See more

Visa VAS

Agent pilots on Visa's existing stack that turn end-of-day instructions into morning-ready work, shipped with the monitoring and rollback runbooks to keep them running.

Discovery
Stakeholder interviews
Handoff
Blueprints + runbooks
Result
Team adoption
AGENT PILOTSSTRATEGY OPS See more
Experience

From research labs to production AI.

Civ RoboticsForward Deployed Engineer
Jun 2026 – Present
The Hog (YC F25)AI Engineer
Apr 2026 – Aug 2026
Kepler AIAI Engineer Intern
May 2025 – Aug 2025
AsyncHealthSoftware Engineer Intern
Sep 2024 – Jun 2025
UC Berkeley · Schekman LabResearch Intern
Aug 2024 – Nov 2024
Healthcare Speaker SeriesLead Coordinator
May 2024 – May 2026
IBMData Science / ML Co-Author
Jan 2024 – May 2024
UCSF · Ma LabResearch Assistant
Sep 2023 – Dec 2024
Stanford Medicine · Wu LabResearch Assistant
May 2022 – Sep 2022

Engineering activity

Last 30 days
tokens burnt

Tokens by agent

GitHub contributions

Writing

Read on X
2026
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