Roy Ren - Senior Software Engineer

About Me

Senior Software Engineer with 10+ years of full-stack development experience across enterprise, fintech, and SaaS environments. Currently driving AI-powered transformation at one of Australia's largest banks.

I believe the most impactful engineers of this era are not defined by specific frameworks — they are defined by how they harness AI to solve real problems. My focus has shifted from writing code line-by-line to architecting intelligent systems, building AI agents, and embedding AI deeply into engineering workflows to amplify both individual and team productivity.

What I Bring

🤖

AI-First Engineering

• Deep understanding of AI fundamentals — transformer architecture, attention mechanisms, tokenization
• AI Agent development — autonomous systems that reason, plan, and execute
• AI-powered problem solving at CBA — revolutionized troubleshooting workflows
• Personal knowledge management with AI — structured, searchable intelligence
• Workflow automation through AI-orchestrated pipelines

🤝

AI-Enhanced Team Leadership

• Championed AI adoption across engineering teams
• AI-assisted coordination — streamlined team communication
• Multiplier mindset — building tools that scale across teams
• Knowledge sharing sessions and internal AI guides
• Measurably improved delivery velocity and knowledge retention

Technical Foundation

Languages & Frameworks

C#

.NET

JavaScript

TypeScript

React

Node.js

Python

Cloud & Infrastructure

AWS/Azure

Docker

CI/CD

Data & Architecture

PostgreSQL

MongoDB

Redis

Experience

Commonwealth Bank of Australia

Senior Software Engineer

Aug 2023 – Present

• Spearheaded adoption of AI-assisted development practices across the team
• Built AI-powered troubleshooting tools that analyse production incidents and generate actionable resolution steps
• Developed AI-driven personal knowledge base system for engineering decisions and technical learnings
• Automated routine engineering workflows using AI orchestration
• Led knowledge-sharing initiatives on AI capabilities, boosting team-wide productivity
• Delivered critical features across CBA's digital banking platform using .NET, React, and AWS

Medinet

Software Engineer

Aug 2020 – May 2021

• Built and maintained healthcare software solutions
• Contributed to full-stack development using modern web technologies

KPMG Australia

Software Engineer

Apr 2020 – Aug 2020

• Developed software solutions for one of the Big Four professional services firms
• Worked in fast-paced consulting environment delivering client-facing applications

Efiniti Telecommunications

Automation Developer

Apr 2015 – Apr 2018

• Built automation systems for telecommunications workflows
• Early career focus on automation — foundation that evolved into AI-powered automation

Education & Certifications

Education

University of Sydney

Master's Degree, Information Technology

2014 – 2015

University of Wollongong

Bachelor's Degree, Computer Engineering (Honours)

2012 – 2014

Zhengzhou University

Bachelor's Degree, Computer Science

2009 – 2012

Certifications

AWS Certified Solutions Architect – Associate

Amazon Web Services

What Drives Me

I'm obsessed with AI — not as a buzzword, but as the most powerful tool available to engineers today. I spend my evenings building AI agents, experimenting with new models, and pushing the boundaries of what's possible when human creativity meets machine intelligence.

"The best engineer is not the one who writes the most code — it's the one who solves the most problems."

AI is the ultimate force multiplier, and I'm committed to mastering it and helping others do the same.

Let's Connect

Based in Sydney, Australia. Ready to discuss AI-powered solutions and innovative engineering challenges.

LinkedIn GitHub

📍 Sydney, Australia