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Achievements

Achievement: YOLOAchievement: Pull Sharkx2

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Achievement: YOLOAchievement: Pull Sharkx2

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ColtonRandall/README.md

Hi, I'm Colton Randall

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LinkedIn Website Email


🚀 About Me

I'm a passionate Software Engineer with a unique blend of full-stack development expertise in SaaS/product and enterprise landscapes, with a bioinformatics background. With 4+ years of professional experience, I've worked at prominent companies like Xero and Westpac, delivering scalable solutions that serve thousands of users across multiple countries.

My journey from biochemistry to software engineering has given me a distinctive analytical mindset and the ability to tackle complex challenges from multiple angles.


💼 Experience

Software Engineer @ Sinch • 2026 – Present
Communications platform as a service building APIs powering messaging, voice, and email at global scale, using Java, Spring Boot and AWS

Software Engineer @ Westpac New Zealand • 2025 – 2026
Building and architecting enterprise banking solutions at scale using Java and Spring Boot.

Full-Stack Engineer @ Xero • 2021 – 2025
Developed product features serving thousands of users in a cloud accounting context • C# / .NET • React / TypeScript • AWS / Kubernetes.

Bioinformatics Research Assistant @ University of Auckland • 2020
Genomic data analysis using Python and Bash.


🛠️ Stack

Java C# .NET TypeScript React

AWS Docker Kubernetes Terraform PostgreSQL


Pinned Loading

  1. dev-portfolio dev-portfolio Public

    Personal developer portfolio built with React, Material UI, and React Router. Features a responsive component-based architecture, dark/light mode, and automated deployment via GitHub Actions and Gi…

    JavaScript 1

  2. ai-code-explainer ai-code-explainer Public

    A minimal web app that uses free AI (via OpenRouter) to explain code snippets. Built with Next.js and TypeScript.

    TypeScript 1

  3. task-manager-api task-manager-api Public

    A RESTful API built with Java 21, Spring Boot, Spring Data JPA, and H2.

    Java 1

  4. sms-routing-service sms-routing-service Public

    REST API built with Java 21 and Spring Boot to route outbound SMS messages. It automatically selects the appropriate carrier based on destination phone number prefix (AU, NZ, or Global), manages op…

    Java 1

  5. notes-app notes-app Public

    A full-stack notes app built with Java (Spring Boot) and React (Vite). Inspired by Google Keep with a Masonry layout. Create, view, update, and delete personal notes in a clean, responsive UI.

    JavaScript 1

  6. tic-tac-toe-csharp tic-tac-toe-csharp Public

    Built a terminal-based Tic-Tac-Toe game in C# to strengthen object-oriented programming fundamentals. Focused on clean code structure, separation of concerns, and game state management within a sim…

    C# 1