Joe Johnston
Chelmsford, Massachusetts, United States
Summary
👤
SeniorJoe Johnston is a Principal Engineer with 12+ years of experience building high-availability, productivity-focused web applications and developer tooling, currently leading the SBTools team within MathWorks' Simulink org. A pragmatic "bare metal" web developer and longtime Perl hacker, he blends deep systems thinking with hands-on implementation—shipping distributed automation, analytics handling tens of millions of rows, and a web-based stack decoding platform. He’s proven at improving developer workflows and operations, having stood up load-balanced clusters, initiated cross-functional testing and ops groups, and mentored interns and hires. Comfortable across languages and clouds, he has migrated core SaaS to AWS, implemented SAML integrations that unlocked sales, and built an in-house ORM adopted by multiple teams. Based in Chelmsford, MA, Joe prefers simple, durable web architectures that deliver measurable value rather than the latest fads.
12 years of coding experience
Stackoverflow
9,926reputation
1.1mreached
22answers
3questions
generics
top-5%
java
top-5%
Github Skills (15)
java9
generics9
python7
constants6
hash6
perl6
rfc6
apache6
timestamp6
mysql6
markdown4
twitter3
dropbox3
instagram2
youtube2
Programming languages (3)
Github contributions (5)
taskboy3000/lerp
Jun 2020 - Mar 2021
Ultralight Dropbox-friendly Markdown-based blogging.
Contributions:144 commits, 89 pushes in 8 months
dropboxmarkdown
taskboy3000/runnel
Dec 2020 - Apr 2026
Contributions:21 pushes, 1 branch in 5 years 4 months
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