Jinjun Sun
Senior AI Software Engineer at PwC Australia
Sydney, New South Wales, Australia
Summary
👤
Senior🎓
Top SchoolJinjun Sun is a Senior AI Software Engineer based in Sydney with 11 years of experience building and deploying enterprise-scale ML systems across government and commercial sectors. He has driven measurable impact—often improving model performance and processing efficiency by 20–40%—through work at IP Australia, Qantas Loyalty and multiple Australian agencies, applying LLaMA 3, Vision Transformers and advanced MLOps on AWS/Azure. Equally comfortable in research and production, he holds a PhD in Physics and has translated academic rigor into scalable pipelines, agentic AI applications, and computer vision solutions for trademark and earth-observation problems. An AWS Certified ML Specialist and polyglot engineer, he blends deep PyTorch expertise with infrastructure automation (EMR, Spark, Docker, CI/CD) and front-end integration experience. Notably, his career spans roles from postdoctoral research to enterprise AI platform engineering, giving him a rare combination of scientific modeling and production-grade system design.
11 years of coding experience
11 years of employment as a software developer
Master of Engineering, Circuits and Systems, Master of Engineering, Circuits and Systems at University of Science and Technology of ChinaPhD, Physics, PhD, Physics at Macquarie University
Chinese, English
Stackoverflow
77reputation
73kreached
4answers
0questions
Github Skills (200)
http-client10
genetic-algorithm10
data-exploration10
data-analytics10
gradient-boosting10
fastai10
extent10
neural-network10
nlp10
data-science10
apache10
visualization10
python-data10
plotly-dash10
python10
Programming languages (17)
Github contributions (5)
fivejjs/dspy
Jun 2024 - Mar 2025
DSPy: The framework for programming—not prompting—foundation models
Contributions:23 pushes in 8 months
digitalearthafrica/dea_ai_core
Dec 2020 - Mar 2021
digital earth ai core with Airflow
Contributions:1 release, 1 review, 19 PRs in 3 months
pythonearthmachine-learningairflow
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