# Byron Zhang

> Staff Full Stack Engineer

Location: United States, United States
Profile: https://flows.cv/byronzhang

Impact-driven Staff Engineer with 10+ years building and scaling ambitious 0→1 products. I lead complex, cross-org initiatives and grow high-performing teams from startup to IPO. I’ve shipped universal healthcare systems across East Africa, AI-powered clinics in the U.S., and large-scale data platforms processing terabytes of healthcare data daily.

## Work Experience
### Staff Software Engineer @ Datavant
Jan 2023 – Present | United States
Largest U.S. healthcare data ecosystem, connecting data from most hospitals, insurers, pharma, and life science companies in the country

• Leading 25-person department across 3 teams on IPO-blocking project
• Overhauling core systems retrieving 100M+ healthcare records and powering $800M+ in revenue
• Launched 0→1 clinical trials product generating $2M in year one with pathway to $20M+ ARR
• Scaled data infrastructure to ingest 2TB+ daily using Kubernetes, Spark, and Snowflake
• Built and scaled multiple engineering teams

### Full Stack Engineer, Technical Lead @ Forward
Jan 2020 – Jan 2022 | San Francisco Bay Area
Tech-powered primary healthcare system with clinics in 25 cities

• Launched three 0→1 product lines (telemedicine platform, preventive health apps, AI-powered self-serve clinics) driving 2x membership growth and 30% increase in engagement + retention
• Scaled mobile app and clinic software to support ~50K members and ~500 clinicians
• Unified data from Apple Health, in-clinic devices, and mobile app for personalized health decisions
• Built and scaled the application and growth eng teams
• Drove org-wide architecture initiatives that improved development velocity and reliability

### Senior Full Stack Engineer @ Watsi
Jan 2017 – Jan 2019 | San Francisco Bay Area
[Meso] Universal healthcare platform backed by Y Combinator Research under Sam Altman; spun out of Watsi

• Built end-to-end healthcare platform (enrollment, EHR, claims, payments) delivering affordable care at a fraction of the cost in low-income countries
• Launched pilot in rural Uganda, driving 4x increase in healthcare utilization, cutting claims processing from 2 weeks to 2 minutes, eliminating drug stock-outs, and drastically improving community health outcomes
• Led architecture for offline-first Android app and backend systems, using caching and syncing techniques to operate reliably in low-bandwidth environments
• Scaled system for nationwide deployment in Ethiopia

### Full Stack Engineer @ Watsi
Jan 2015 – Jan 2017 | San Francisco Bay Area
[Watsi] Y-Combinator's first nonprofit, a crowdfunding platform to fund life-changing surgeries in low-income countries

• As the 9th employee, built donation flow and core features that raised $12M+ to fund 20K surgeries in 22 countries
• Slashed operating costs from $1M to <100K by fully automating all operational processes, making the nonprofit completely self-sustaining
• Partnered with medical orgs in 22 countries to streamline patient management and payment processing

### Project Lead @ Blueprint, Technology for Non-Profits
Jan 2014 – Jan 2015 | UC Berkeley
Designed, developed, and launched web and mobile applications for non-profits in the San Francisco Bay area, most notably Project Homeless Connect:
• Created Android app, backend system, and Salesforce integration to improve social services to homeless and at-risk communities in San Francisco

### NLP Researcher @ Carnegie Mellon University
Jan 2014 – Jan 2014
• Developed NLP and ML systems to support teaching staff in large-scale massive online open courses
• Designed and built Java-based models to classify course topics and recommend relevant forum discussions, increasing student engagement while reducing instructor workload
• Leveraged semantic similarity techniques trained on data from Coursera, Wikipedia, and The Wall Street Journal

### Undergraduate Researcher @ University of California, Berkeley
Jan 2013 – Jan 2014
Cyborg Insect Project, Michel Maharbiz Lab
• Designed and assembled microelectronic headgear to control insect flight		
• Fabricated carbon fiber microelectrodes for long-term neural implantation and imaging

### Research Intern @ UCSF Medical Center
Jan 2012 – Jan 2012
• Published paper (second author) on a muscle protein’s role in muscle hypertrophy and normal muscle development
• Pioneered study investigating skeletal muscle atrophy in war veterans using clinically relevant mice models
• Optimized muscle harvesting, cryosectioning, and imaging techniques to analyze 80% smaller muscles
• Presented findings to panel of UCSF/VAMC orthopedic surgeons


## Education
### Electrical Engineering & Computer Science in Bioengineering and Biomedical Engineering
University of California, Berkeley
Jan 2011 – Jan 2015

### Study Abroad
Peking University
Jan 2013 – Jan 2013

### Electrical Engineering and Computer Science
University of California, Berkeley


## Contact & Social
- LinkedIn: https://linkedin.com/in/byronium
- GitHub: https://github.com/byronium

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Source: https://flows.cv/byronzhang
JSON Resume: https://flows.cv/byronzhang/resume.json
Last updated: 2026-03-22