Sarah Chen
Senior Software Engineer
San Francisco, CAsarah.chen@gmail.comlinkedin.com/in/sarahchengithub.com/sarahchensarahchen.dev
Summary
Product-minded engineer with 8 years turning ambiguous problems into products people love. I care deeply about craft, speed, and the small details that make software feel effortless. Previously building payments at scale; now exploring the intersection of developer tooling and design.
Experience
Senior Software EngineerJan 2021 — Present
StripeSan Francisco, CA
- Architected a payment reconciliation system processing $2B annually with 99.99% uptime
- Led a team of 4 engineers to ship a fraud-detection feature that reduced chargebacks by 28%
- Cut API p99 latency from 800ms to 120ms through query optimization and intelligent caching
- Mentored 6 junior engineers, three of whom were promoted within a year
Software EngineerJun 2018 — Dec 2020
AirbnbSan Francisco, CA
- Built the host onboarding flow now used by 2M+ hosts globally
- Migrated a legacy Rails monolith to microservices, reducing deploy time by 60%
- Shipped an internal experimentation framework adopted by 12 product teams
Founding EngineerAug 2016 — May 2018
Lumen (acquired)Remote
- First engineering hire; built the core product from zero to 40k users
- Owned the full stack — frontend, API, infrastructure, and on-call
- Company acquired by a public SaaS company in 2018
Education
UC Berkeley2012 — 2016
B.S. Computer ScienceBerkeley, CA
Certifications
AWS Certified Solutions Architect — ProfessionalAmazon Web Services2022
Certified Kubernetes Administrator (CKA)Cloud Native Computing Foundation2021
Skills
Languages
TypeScript, Python, Go, SQL
Frameworks
React, Next.js, FastAPI, Node.js
Cloud & Infrastructure
AWS, Docker, Kubernetes, Terraform
Design & Product
Figma, Prototyping, User research, A/B testing
Projects
OpenMetrics
PythonPrometheusDocker
- Open-source observability library with 3,000+ GitHub stars
- Supports Prometheus, OpenTelemetry, and custom metric exporters
- Downloaded over 10,000 times per week
Typeflow
ReactCanvasWebGL
- A typography playground for designers, used by 5,000+ creators
- Featured on Designer News and Product Hunt
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