Justin S
Staff Software Engineer at Replit
Campbell, California, United States
Summary
👤
Senior🎓
Top SchoolJustin S is a Staff Software Engineer with 14 years of experience building scalable, secure systems across startups and large enterprises from Raytheon and PayPal to Netflix and Replit. He blends deep systems and integration expertise—architecting large-scale data sharing and real-time information systems for DoD—with hands-on product delivery in consumer and fintech platforms. Known for reducing complexity and improving performance (e.g., major backend refactors that cut response times and code surface), he moves fluidly between backend architecture, distributed systems, and developer-facing tooling. Based in Campbell, CA, he frequently leads cross-functional teams to turn research initiatives into production-ready services. Justin’s background shows a knack for leveraging COTS and pragmatic engineering to accelerate deployments and lower costs, a skill that surfaces in both defense-grade and commercial products. He prefers solving tough problems with intelligent, practical designs rather than flashy prototypes.
14 years of coding experience
25 years of employment as a software developer
BS, Information Systems Management, BS, Information Systems Management at University of San Francisco
Github Skills (200)
over-the-air10
expressjs10
declarative10
recoiljs10
schema10
backbone10
html-webpack-plugin10
code-generator10
javascript10
mongoose10
codegen10
monorepo10
resolvers10
angular10
typscript10
Programming languages (10)
Github contributions (5)
jspears/ts-emeth
Feb 2020 - Jan 2023
Typescript Helpers for Emeth
Contributions:9 releases, 2 reviews, 22 PRs in 2 years 11 months
typescripthelperstypescript-helpers
jspears/bobamo
Feb 2012 - Aug 2013
Contributions:376 commits in 1 year 6 months
on-demandbackbonescaffoldingjavascriptdemand
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