Isaac Rowntree - Engineering Manager

Isaac Rowntree

Open Source Creator. Coder. Dancer. Performer. Trombonist. Guitarist. Singer. Rock Climber. Tap Dancer. Surfer. Coffee Snob. Motorcyclist. Cyclist. Tumbler. Tennis Player. Tough Mudder (5x). Kite Surfer. Photographer. Videographer. Spartan Race (5x). Spanish Learner.

Contact Me GitHub Twitter

Experience

Head of Tech - CamperMate

July 2020 - Present
Enterprise-Scale Technical Leadership
  • Scaled team from 5 under-performers to 3 top-level performers; aligned software/infrastructure costs with budget
  • Architected and delivered 6 production systems: React Native app, Next.js platform, B2B dashboard, Analytics portal, Retool admin portal, and 26 Cloudflare Worker microservices
  • Built AI-powered travel platform with substantial user growth and revenue in 3 years
  • Led org-wide security transformation: OAuth, YubiKey hardware verification, penetration testing
  • Maintained continuous operation of iOS/Android apps throughout complete replatform while deleting legacy systems
  • Established SRE practices with DataDog, Rollbar, automated alerting -- 99.9% uptime, sub-second response times
React Native
Cross-platform mobile
  • 35+ modules & components
  • 80%+ test coverage
  • Large-scale active users
  • 99.94% crash-free rate
Next.js Platform
Full-stack website
  • 70,333+ lines TypeScript
  • 119 App Router pages
  • 202 components
  • 35+ languages
B2B Dashboard
Business platform
  • 13 test suites
  • 20+ form fields
  • Multi-tier auth
  • Drag & drop photos
Analytics Portal
Enterprise SaaS
  • Multi-tenant SaaS
  • Municipal clients
  • RBAC security
  • Power BI integration
Worker Functions
Serverless microservices
  • 26 microservices
  • 400,000+ lines code
  • V8 JS engine
  • Global edge deployment
  • Risk-free transitions
  • Zero-downtime deploys

Software Engineer with Redbubble

March 2016 - June 2020
  • Fulfilment, Visual Merchandising and Supply Chain Team
  • Frontend Platform Team
  • Product API Platform Team
  • Membership Frontend Team
  • Commercial Frontend Team

Owner and Director of Zack Design

May 2002 - 2016

Teacher at Swinburne TAFE and Gordon TAFE

2009 - 2011 (2 years)

VET Multimedia, Business, Finance, OH&S - 1on1 Disability - Adult Short Courses (Office Skills)

Senior Developer, Digital and Analytical Analyst, and Tech Lead at Ray White Group

Jan 2012 - Mar 2015 (approx 4 years including additional time as subcontractor)
  • Senior Developer Ray White Office, Agent, and Retail Sites
  • Tech Lead Loan Market Broker, Intranet, and Retail Sites
  • Digital Analysis and SEO (from 2.5% to 5% lead conversion)
  • Tech Lead Ray White Intranet (Whiteboard)
  • Tech Lead Living Here sites
  • Lead Architect Migration to AWS
  • SCRUM Master (+ JIRA)
  • Email Signature app saving the company $15,000/year

Skills & Expertise

Leadership
Team Scaling Performance Management Technical Budget Enterprise Sales Support Board Presentations
Languages
TypeScript JavaScript Go Python Ruby SQL Swift Kotlin
Frontend & Mobile
React 19 Next.js 15 React Native PWA Mobile-First
Backend & APIs
Node.js Hono tRPC GraphQL REST Strapi CMS Serverless
AI & ML
Cloudflare AI Workers GPT-4 Llama RAG Vector Search AI Translation
Cloud & Infra
AWS Cloudflare Workers Edge Computing Sceptre IaC Doppler Secrets
Data
PlanetScale MySQL BigQuery Typesense Prisma Power BI ETL Pipelines
Security
OAuth YubiKey RBAC Pen Testing JWT GDPR
DevOps & SRE
GitHub Actions Jest / Vitest Playwright DataDog Rollbar Zero-Downtime Deploy

Technical Showcase - CamperMate Platform

Strategic Replatform -- Zero Downtime, 6 New Systems, Significant Business Growth

Led complete replacement of legacy platform with six interconnected production systems, using Cloudflare Worker proxies for risk-free transitions. Substantial revenue growth and large user base achieved in 3 years.

React Native

Cross-platform iOS/Android
Scale & Metrics
  • Large-scale active users
  • 99.94% crash-free rate
  • High engagement
  • 23% day-1 retention
  • 35+ modules
Key Features
  • Production-grade reliability monitoring
  • Firebase Crashlytics integration
  • Hybrid online/offline search
  • Multi-provider authentication
  • Real-time data synchronization
Architecture & Tech Stack
Clean Architecture SOLID Principles TypeScript Firebase 80%+ Test Coverage

Next.js Platform

Full-stack travel website
Scale & Metrics
  • 70,333+ lines TypeScript
  • 119 App Router pages
  • 202 components
  • 35+ languages
  • 10,000+ POIs
AI-Powered Features
  • AI-generated travel itineraries
  • Intelligent search with typo tolerance
  • Automated content translation
  • Contextual activity recommendations
  • Smart geographic validation
Tech Stack
Next.js 15 React 19 TypeScript Prisma/Kysely Typesense

B2B Dashboard

Business management platform
Scale & Features
  • 13 test suites
  • 20+ form fields
  • Multi-tier auth
  • Drag & drop photos
  • Intl phone validation
Business Features
  • POI listing management system
  • Photo galleries with positioning
  • Customer review management
  • Freemium business model
  • PowerBI analytics integration
Tech Stack
Next.js 15 AWS Cognito Kysely Zod React Hook Form

Analytics Portal

Enterprise SaaS analytics
Enterprise Features
  • Multi-tenant SaaS
  • Municipal clients
  • RBAC security
  • Data isolation
  • Power BI integration
Technical Architecture
  • AWS Amplify cloud infrastructure
  • AWS Cognito authentication system
  • Sceptre infrastructure as code
  • React 18 with Next.js 14
  • Complete CI/CD pipeline automation
Enterprise Stack
AWS Amplify AWS Cognito Sceptre Power BI TypeScript

Worker Functions

Serverless microservices
Scale & Metrics
  • 26 microservices
  • 400,000+ lines code
  • V8 JS engine
  • 10+ API integrations
  • Global edge deployment
Advanced Capabilities
  • Risk-free system transitions via proxy routing
  • AI conversational travel agent
  • Real-time data synchronization
  • Multi-language content processing
  • Zero-downtime deployment strategies
Infrastructure
Serverless Edge Computing Event-Driven Auto-Scaling Proxy Routing

Open Source Projects

slackbuzz

CLI for Slack

Command-line tool for Slack. Manage your inbox, send messages, search channels, react to messages, and set status without leaving the terminal.

Key Features
  • Activity inbox -- mentions, DMs, and threads at a glance
  • Full messaging -- send, search, react, and manage channels
  • AI agent support -- structured JSON output with JQ filtering
  • 1900+ emoji -- shortcodes rendered as Unicode
Tech Stack
Go Cobra Slack API ClickUp API GitHub API System Keyring
Repository Docs
Quick Install
brew install triptechtravel/tap/slackbuzz go install github.com/triptechtravel/slackbuzz-cli/cmd/slackbuzz@latest

Works with macOS, Linux, and Windows. Supports bash, zsh, fish, and PowerShell completions.

clickup-cli

CLI for ClickUp

Command-line tool for ClickUp with git integration, GitHub linking, and AI agent support. Manage tasks, sprints, and comments without leaving the terminal.

Key Features
  • 30+ commands for tasks, sprints, and comments
  • Git integration -- auto-detects task IDs from branches
  • AI agent support -- structured JSON output for Claude Code, Copilot, Cursor
  • Fuzzy search -- find tasks and match statuses with partial input
Tech Stack
Go Cobra GitHub API ClickUp API System Keyring
Repository Docs
Quick Install
brew install triptechtravel/tap/clickup go install github.com/triptechtravel/clickup-cli/cmd/clickup@latest

Works with macOS, Linux, and Windows. Supports bash, zsh, fish, and PowerShell completions.

Ledger

Personal Finance ETL

Personal finance tool that ingests bank statements from multiple Australian banks, categorises transactions, and generates ATO-ready tax reports with a local web dashboard.

Key Features
  • 9 bank statement parsers (PDF + CSV)
  • Auto-categorisation with regex rules and learning
  • ATO tax reports matching individual return sections
  • Business splits for expense allocation
Tech Stack
Python Flask SQLite TypeScript Vite pdfplumber
Repository Docs
Quick Start
pip install -e . ledger init && ledger ingest python -m api

Local-first. SQLite database. Your financial data stays on your machine.

nitro-unzip

React Native Module

High-performance ZIP operations for React Native, powered by Nitro Modules. Native-level compression and decompression with progress callbacks, cancellation, and password support — no bridge overhead.

Key Features
  • ~500 files/sec extraction speed
  • Zero bridge overhead via Nitro JSI
  • Progress callbacks and cancellation
  • AES-256 password-protected archives
Tech Stack
TypeScript Swift Kotlin Nitro Modules SSZipArchive
Repository Docs npm
Quick Install
npm install react-native-nitro-unzip npm install react-native-nitro-modules

iOS (SSZipArchive) and Android (ZipInputStream). Requires React Native 0.76+ with Nitro Modules.

claude-social-skills

Claude Code Plugins

Claude Code skills for social media posting, eBay listings, and email management. Extend Claude with automated workflows for everyday tasks.

Claude Code Skills API Social Media eBay
Repository

color-grade-ai

AI Color Grading

AI-powered .cube LUT generator for color correction in DaVinci Resolve and Premiere Pro. Describe a look in natural language and get a professional LUT file.

Claude Code Skill .cube LUT DaVinci Resolve Premiere Pro
Repository

Education

  • Bachelor of Applied Science (Information Technology)
  • Certificate IV - Training and Assessment
  • BentoBox
  • Professional Development courses including: AWS, UX, Agile, Salesforce

Extra-curricular

  • Deeply passionate about photography and videography, capturing moments through both still images and dynamic videos
  • Completed 5 Spartan Races and 5 Tough Mudders -- embracing brutal terrain and obstacles
  • Worked and volunteered three summers in Sweden as Event Manager and Bar staff at dance events 2012, 2013, 2015
  • Volunteered one year 2014 as an English coach for international students
  • Trombone player for over 20 years, dancer for 9 years with choreography experience
  • Love long bike rides anywhere between 40 and 100km with coworkers and friends on weekends
  • Inveterate traveler and collector of geeky gadgets
  • Currently learning Spanish to enhance cross-cultural communication and personal growth
  • Drank way too much coffee, went cold turkey. Possibly my greatest accomplishment to date

Reference

...Although Isaac's job title was Senior Developer, in his time with the company Isaac performed many roles outside of that role. He was instrumental in all facets of Digital Development and Digital Marketing.

Isaac performed as lead architect on many projects; migration to AWS, lead generation (Salesforce), Intranet builds plus numerous more. Isaac also was the lead in all SEO implementations including being an Analytics Analyst.

Isaac always performed all tasks with a passion and commitment to making a difference, displaying values that not only enhanced the development team, but the greater company as well.

I have no hesitation in recommending Isaac for any IT/development position and if the chance arises I would happily re-employ him as I truly consider him to be a valuable asset to any team...