JUSTIN ZHANG

Software Engineer

About Me

Software engineer with fullstack experience across React, Next.js, Expo React Native, and Python. In a pre-seed startup, delivered mobile architecture redesign, legacy SDK extraction, and end-to-end test infrastructure including Jest at 80% coverage, Husky pre-push hooks, and a YAML CI pipeline for staging.

That infrastructure reduced intern ramp-up from 3–4 weeks to under 2 and increased feature throughput by 70%. Looking for a role with more scale exposure to match the systems thinking already in place.

Location: Melbourne, Australia

Email: justin.zhang.work@gmail.com

Work Experience

Associate Platform Developer

Biosignals Diagnostics

Current

Mar 2025 – Present·Melbourne, Victoria, Australia·Part-time

Spearheading mobile app architecture redesign, legacy SDK extraction, and test infrastructure at a biomedical diagnostics company. Boosted new developer efficiency by 70% and improved code coverage by 60%.

React NativeExpoTypeScriptOracle APEX+2

Software Engineer

TAIE Education Platform

Jan 2023 – Feb 2025·Melbourne, Australia·Full-time

Delivered mobile architecture redesign, legacy SDK extraction, and end-to-end test infrastructure at a pre-seed startup. Reduced intern ramp-up from 3–4 weeks to under 2 and increased feature throughput by 70%.

React NativeExpoTypeScriptNext.js+6

Projects

Databricks Web Application Development

2024

Web Platform

A scalable video asset management platform built on AWS S3 with a React frontend, achieving a 65% increase in data access speed and streamlined video editing workflows.

AWS S3AWS CognitoAWS SESReact+2

SustaAIn — AI Agent Hackathon Project

2024

AI / Hackathon

An AI agent built at a hackathon to assist with sustainability decision-making, combining LLM reasoning with real-world data to surface actionable environmental insights.

PythonFastAPILLMAI Agents+2

Collaborative Whiteboard

2023

Systems / Networking

A multi-user real-time collaborative whiteboard application built in Java, featuring live synchronisation and chat over a client-server architecture using RMI.

JavaRMISwingNetworking+1

Swordfish — Robot Odyssey DSL Compiler

2023

Systems / Compilers

A team-built domain-specific language (DSL) compiler for robot behavior control in C++, covering lexing, parsing, semantic analysis, and source-to-bytecode compilation.

C++LexBisonCompilers+2

Skills & Technologies

Frontend

ReactTypeScriptNext.jsTailwind CSSExpoReact Native

Backend

PythonFlaskFastAPIPL/SQLPostgreSQL

Cloud & DevOps

DockerAWSSupabaseCI/CDOracleYAML

Tools

GitFigmaJiraPostmanLinuxVS Code

Get In Touch

Interested in working together or just want to say hi? Feel free to reach out!