Kelvin Bulwinkel

Full Stack Product Developer and Technical Lead

Gold Coast, QLD, Australia

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KB

About

👋 Hi! I'm Kelvin, a passionate full-stack product developer, technical lead, speaker and occasional podcast host based out of the Gold Coast QLD. I am product-oriented, aiming for the ideal mix of rapid value delivery and robust code. Throughout my career, spanning roles from individual contributor to CTO, I have found that I function best in environments that value ownership, creativity, and the diverse perspectives of my colleagues. I am committed to excellence in any role, whether contract or full-time. Today, my go-to frameworks are Flutter or React Native for mobile projects and React/Next.js + TypeScript for the web. That said, my priority is a project's success and my technical recommendations are always tailored toward that end.

Skills

JavaScript
TypeScript
React/Next.js
Node.js
Flutter
Dart
React Native
Firebase
NoSQL

Work Experience

Splash
Remote
Contract

2022 - 2024

Product Technical Lead

Led a small team of cross-discipline engineers in the development and release of three major products: Splash Pro, BeatBot, and Splash Music & BeatMaker (re-release). Streamlined processes and mentored the team, focusing on shipping quickly and sustainably.
React/Next.js
Typescript
Flutter & Flutter Web
Firebase
GCP
Cloud Run
Python + FastAPI
GitHub Actions
Codemagic
RevenueCat
Retool
JUCE
C++
Retool

Eggy
Hybrid
Full Time

2021 - 2022

CTO

As one of the first employees, spearheaded the tech direction and product development of the company. Introduced scrum and agile with two-week sprints and regular releases. Grew the team with a mixture of permanent onsite staff and remote overseas contractors. Guided the team in the transition from feature-focussed to problem-focussed. Led the rebuild of the app from native iOS to Flutter, releasing on Android, iOS and Web. Incrementally migrated the serverless backend to typescript alongside ongoing feature development.
Flutter
Flutter Web
Dart
TypeScript
React/Gatsby
Firebase
MongoDB
Serverless
AWS
Express
Github Actions
Retool

Splash
Hybrid
Full Time

2019 - 2021

Application Development Lead

Rapidly prototyped multiple ideas to bring AI music to market. Pioneered a technique that allowed fast UI development with Flutter bridged to C++ for real-time audio processing. With a team of two, led the development of the Splash Music & BeatMaker app, from prototype to release on Android & iOS in three and a half months. Grew and managed the development team implementing scrum and agile. Saw the Splash Music & BeatMaker app grow to over one million downloads.
Flutter
Flutter Web
Dart
Firebase
GCP
JUCE
C++

Anonyome Labs
Hybrid
Full Time

2018 - 2019

Software Engineer

As part of the Android browser team, developed a standalone privacy browser app and library. Reverse engineered the FireFox focus app, investigating the Gecko browser engine as a replacement for the default Android webview. Implemented tracker blockers. Architected a new internal android library structure that allowed for isolated dependency graphs between modules. Built internal Gradle plugins and reduced flagship app built times by over 50%.
Android
Kotlin
Java
Gradle
iOS
Objective-C
Swift
GitLab CI/CD

Hydric
Onsite
Full Time

2015 - 2018

Full Stack Developer (Mobile & Web) → Technical Lead

In an agency context, worked on projects for high-profile companies such as Spotify, Bose, Gatorade, Viacom, MTV, Rate My Professors and Northwestern Mutual. Delivered custom native Android, iOS and web applications to specification within time and budget constraints. As Technical Lead, participated in quoting, systems architecture and project management.
Android
Kotlin
Java
RxJava
RealmDB
iOS
Objective-C
Swift
React
React Native
FlowJS
Typescript
Redux
Node.js
AWS
Jenkins
Python

Apps Unloaded / In The Code
Onsite
Full Time

2014 - 2015

Mobile Developer → Lead Mobile Developer

Led mobile app development for Android & iOS from conception to delivery, including client interactions, UI design, and team management. Spearheaded the development and testing of the LogiDial suite, securing a major contract post-prototype demonstration at Mobile World Congress 2014. Promoted to Lead Mobile Developer, overseeing both platforms and leading to successful launches in tight timelines.
Android
Java
iOS
Objective-C
Javascript
Python
Android Studio
Xcode
JetBrains suite
Balsamiq
LucidChart
Wrike
Bitbucket

Projects

Splash Pro

AI Music Maker

TypeScript
Next.js
Stripe
Firebase Auth
Firestore
GCP

Tech Huddle

Adhoc Longform Tech Discussions

Side Project
Podcast
Next.js

BeatBot

Transform a text prompt into music with AI.

Flutter Web
Dart
Firebase
NoSQL
Firestore
GCP
Python

Splash Music & BeatMaker

Mobile application for creating music and beats, similar to GroovePad.

Flutter
Dart
Firebase
NoSQL
Firestore
GCP
JUCE
C++

BIGSOUND Mobile App

BIGSOUND Conference and Festival mobile application for iOS and Android.

React Native
FlowJS
Redux
REST API
Android
iOS

Mabu Jila - Android, iOS & Web

An app to preserve traditional Kimberley culture.

Flutter
Flutter Web
Dart
Firebase
NoSQL
Google Cloud Storage

Eggy - Android, iOS & Web

Life management, simplified.

Flutter
Flutter Web
Dart
Firebase
MongoDB
Serverless
AWS

Northwestern Mutual - Android & iOS

Lead Android Developer and iOS contributor on the native mobile applications for Northwestern Mutual.

Android
Java
RxJava
RealmDB
iOS
Objective-C

Rate My Professors - Android & iOS

Lead Android Developer and iOS contributor on the native mobile applications for Rate My Professors.

Android
Java
RxJava
RealmDB
iOS
Objective-C

Wakeful

Wakelock from your android quick settings.

Android
Kotlin
Gradle
Google Play

Wonder.fm Android

Android application for the Wonder.fm music chart.

Android
Kotlin
RxJava
Gradle
Google Play

Education

Griffith University

2013
Master's Degree, Software Development

GPA 7

Griffith University

2008 - 2012
Bachelor of Arts in Languages and Applied Linguistics

GPA 6.8