Joshua Guinness
Software Engineer at Red Arc
Sydney, New South Wales, Australia
Summary
👤
Senior🎓
Top SchoolJoshua Guinness is a pragmatic full-stack software engineer with 9 years' experience building scalable web applications and developer tooling across Java, Python, JavaScript, and React, currently contributing to nonprofit-focused products at Red Arc. He shipped high-impact systems at Amazon—optimizing a Scala Lambda to cut latency by over 40% for millions of daily requests—and has a strong background in cloud-native patterns on AWS, microservices, and observability. Comfortable across the stack, Joshua pairs hands-on coding with testing and DevOps practices, having led migrations, created integration test frameworks, and improved CI speed at previous employers. A McMaster Software Engineering & Management graduate, he blends technical depth with product-minded communication and a history of mentoring and cross-team collaboration. Outside work he channels the same focus into running, basketball, and Formula 1, reflecting a competitive, detail-oriented mindset.
9 years of coding experience
1 year of employment as a software developer
B.Eng.Mgt., Software Engineering and Management (CO-OP), 3.8, B.Eng.Mgt., Software Engineering and Management (CO-OP), 3.8 at McMaster UniversityHigh School Diploma, High School Diploma at Toronto District Christian High School
English, French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (26)
sdk10
fill9
intel9
hardware9
payment-methods9
in-app-purchase9
google-images9
computer-vision9
digital-signage8
assistive-technology8
signature8
speaker8
camera-api7
python-requests7
realsense7
Programming languages (7)
Github contributions (5)
joshuaguinness/Generating-Image
Dec 2018 - Sep 2019
Contributions:31 commits, 24 pushes, 1 branch in 9 months
joshuaguinness/hackwestern-emr
Nov 2019 - Apr 2022
Developed an accessible, voice-enabled electronic medical record system which stores patients’ medical records, allows patients to fill out medical forms using speech-to-text and provide an electronic voice signature
Contributions:28 commits, 3 PRs, 10 pushes in 2 years 5 months
fillsignaturespeech-recognitionelectronicmedical
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