Principal Software Engineer · Platform, Data & AI Systems

I build resilient platforms, data-intensive systems, and AI products that earn trust.

I am Fei Wang, a Sydney-based software engineer and technical leader with more than 15 years of hands-on experience across platform engineering, big data, machine learning, AI-driven systems, full-stack development, and multimedia software.

My work sits at the intersection of engineering depth, operational rigor, and product impact: shaping systems that scale, improving reliability, and turning ambitious ideas into practical software people can trust.

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About

Senior technical leadership with the judgment of an architect and the instincts of a builder.

I am most effective where complexity is high, stakes are real, and the path forward is not obvious. I enjoy working through difficult technical problems, especially where systems, data, and product expectations all meet.

Over the years, I have worked across product companies, consulting, enterprise environments, and large-scale data organizations. That range has shaped how I lead and build: with architectural clarity, delivery discipline, and a bias toward simple solutions that hold up in production.

I am at my best when helping teams modernize platforms, improve developer effectiveness, strengthen data foundations, or explore AI opportunities in ways that are commercially useful, technically sound, and grounded in real business needs.

15+ years building software and data systems
7 roles across product, consulting, data, and platform engineering
4 core strengths: platform, data, AI, and full-stack delivery

Snapshot

How I create leverage.

Platform and reliability

I strengthen the foundations beneath product teams so they can move faster with better tooling, clearer standards, and fewer operational surprises.

Data and intelligence

My background in data operations, warehousing, lineage, and ML-adjacent systems helps me connect infrastructure decisions to analytical value and credible AI outcomes.

Product-minded execution

I care about elegant implementation, but I care just as much about whether the work solves the right problem, earns adoption, and creates lasting value.

Experience

Built across product engineering, consulting, enterprise platforms, and data at global scale.

Jan 2022 - Present

Prezzee

Principal Software Engineer

Leading high-impact engineering work across platform capability, product delivery, and practical AI exploration, with a focus on building scalable systems and improving how teams ship software.

May 2021 - Jan 2022

Simple Machines · Sydney

Principal Consultant

Partnered with organizations on architecture and software delivery, helping teams make better technical decisions and execute with more clarity, speed, and confidence.

Jul 2017 - May 2021

Facebook · Greater Sydney Area

Data Platform Engineer

Worked in data operations and engineering at large scale, supporting critical data workflows through operational excellence, tooling, and reliable execution.

Jun 2016 - Jul 2017

Westpac Group · Greater Sydney Area

Data Platform Specialist

Focused on data warehouse tooling and lineage management, improving transparency, governance, and trust across enterprise data systems.

Apr 2013 - Jun 2016

Schneider Electric · Adelaide

Senior Software Engineer

Designed and developed business applications, including optimization solutions, combining strong technical implementation with real-world operational requirements.

Apr 2012 - Mar 2013

SolveIT Software · Greater Adelaide Area

Senior Software Engineer

Built software for optimization-heavy use cases, translating complex planning and scheduling problems into production systems.

Aug 2008 - Mar 2012

Fullerton Investment & Credit Guarantee · Nanjing

Technical Architect and Database Administrator

Managed infrastructure, databases, and enterprise application integration, building reliable internal systems and strengthening the operational backbone of the organization.

Contact

Open to meaningful conversations about engineering leadership, platform strategy, data foundations, and practical AI.

If you are building for scale, modernizing technical foundations, or looking for pragmatic leadership across platform, data, and AI, I would be glad to connect.

wonphy@gmail.com LinkedIn