Coby Plain
Sydney, New South Wales, Australia
Summary
👤
SeniorCoby Plain is a Senior Principal Software Engineer based in Sydney with 13 years of experience leading large-scale frontend and mobile initiatives at Atlassian, primarily across Jira Cloud. He specialises in reliability, performance, and developer productivity, driving cross-team programs that uplift CI/CD, tooling, and customer satisfaction at scale. Coby blends hands-on architecture and engineering (from founding Jira mobile apps to Kotlin multiplatform efforts) with people and process design—hiring, onboarding ~25 engineers, and shaping org-level operational practices. He favours pragmatic, maintainable code and iterative processes, believing that investing in foundations and internal workflows is the multiplier for growth. A pragmatic problem-solver, he has repeatedly delivered measurable performance and quality improvements (including a 60% speed gain on core flows) while embedding data-driven and developer-centric practices across products.
13 years of coding experience
Github Skills (11)
coverage7
jacoco6
java-agent6
augmented-reality6
java5
bytecode5
kotlin5
code-coverage5
instrumentation4
groovy4
runtime-permissions2
Programming languages (1)
Github contributions (5)
cplain/augmented-reality-tutorial
Nov 2012 - Dec 2012
a simple augmented reality tutorial I created with Ali Muzaffar (https://github.com/atgheb) it is split into four stages
Contributions:5 commits in 4 days
augmented-reality
cplain/cplain.github.io
Sep 2015 - Jun 2017
Contributions:67 pushes, 1 branch in 1 year 9 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.