John Mertens
Senior Software Engineer at Scale to Win
Portland, Oregon, United States
Summary
👤
Senior🎓
Top SchoolJohn Mertens is a senior software engineer with 15 years of experience building high-scale, product-focused systems from startup APIs to enterprise platform services. Based in Portland, he blends full-stack craftsmanship, rapid prototyping, and user testing with a civic-minded orientation rooted in early work at Code for America and Change.org. He has led engineering teams and platform architecture, driving simplification and efficiency across email systems that handle roughly a billion messages per month and high-impact user flows that power shares and revenue. As a former CTO/co‑founder he built large-scale text analysis, auto-categorization, and analytics pipelines, pairing engineering leadership with hands-on coding across Ruby, JavaScript, PostgreSQL, MongoDB, Redis, and AWS. At Change.org he bridged ML research and product to ship AI-powered features, showing a comfort moving models from research into production. Known for pragmatic open-data advocacy and a habit of open-sourcing internal tools, he mixes civic purpose with production-grade engineering.
15 years of coding experience
13 years of employment as a software developer
B.S., Computer Science, B.S., Computer Science at Iowa State University
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (98)
programming-language10
scalable10
elixir10
functional-programming10
sounds9
compiler9
coders9
translation9
data-processing8
redis-sentinel8
genstage8
multistage8
broadway8
concurrent8
couchapp7
Programming languages (11)
Github contributions (5)
VersaHQ/potatochop
Mar 2014 - Sep 2014
Contributions:71 commits in 5 months
hamlsimple-serversassmockups
mertonium/lgiftm
Jun 2019 - Sep 2023
Looks Gif To Me
Contributions:2 PRs, 3 pushes, 3 branches in 4 years 3 months
javascriptreactgif
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