James Healy
Engineering Manager at Amber Electric
Melbourne, Victoria, Australia
Summary
🤩
Rockstar🎓
Top SchoolJames Healy is an engineering manager and hands-on technical leader with 18 years of experience building reliable web and infrastructure systems, now leading engineering at Amber Electric from Melbourne. He balances people-focused management with deep engineering craft, having moved through SRE, lead and principal roles at Buildkite where he modernized CI/CD tooling and contributed to their open-source agent and elastic CI stack. A longtime Rubyist and contributor to prominent gems like Nokogiri, Prawn and Whenever, he also improves developer experience through documentation work on Buildkite and pragmatic DevOps automation. He prefers stable, proven technology choices for production (LTS releases and conservative upgrades) so teams can deliver value without constant churn. Naturally curious, he experiments with new languages and patterns off the critical path, while coaching teams to raise code quality, process and stakeholder trust. Notably, his open-source contributions span core PDF and XML libraries as well as cloud and CI tooling, reflecting both low-level systems skill and product-focused automation.
18 years of coding experience
18 years of employment as a software developer
Computer Science and Software Engineering (CSSE), Computer Science and Software Engineering (CSSE) at Swinburne University of Technology
Github Skills (53)
libxml210
docker10
buildkite10
apidoc10
testing10
pdf10
bash10
cloud-infrastructure10
dockers10
cicd10
ruby10
api-documentation10
automation10
packer10
pdf-processing10
Programming languages (14)
Github contributions (5)
yob/pdf-reader
Jun 2008 - Jan 2023
The PDF::Reader library implements a PDF parser conforming as much as possible to the PDF specification from Adobe.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:23 reviews, 1554 commits, 417 PRs in 14 years 9 months
Contributions summary:James primarily worked on developing and improving the PDF processing functionality of the library, including adding support for extracting metadata, page count, and page dimensions. They added new features like support for filter aliases, implementing a text extraction function that addresses handling different page and stream encodings, and improving general text extraction for multi-column output and the handling of glyph positioning and font metrics. They also addressed bugs involving parsing of hex strings and dealing with malformed or complex CMap parsing.
pdf-parserpdf-specification
buildkite/agent
Jan 2020 - Sep 2022
The Buildkite Agent is an open-source toolkit written in Go for securely running build jobs on any device or network
Role in this project:DevOps Engineer & Automation Engineer
DevOps Engineer & Automation EngineerContributions:86 reviews, 198 commits, 176 PRs in 2 years 8 months
Contributions summary:James primarily focused on enhancing the Buildkite agent's build and release processes. Their contributions included refactoring build steps to leverage Docker containers for dependency management, particularly for Ruby-based tooling. They also modernized the deployment pipeline by migrating steps to the new "deploy" queue and integrating tools like GPG and homebrew. Furthermore, the user improved artifact upload and Docker image publishing, and added more OS telemetry to the agent.
buildkitegodockercontinuous-integrationcontinuous-deployment
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