Full-stack product work — flagship SaaS, web, mobile, cloud and AI — delivered with engineering rigour and a designer's eye.
A full-stack SaaS built, shipped, and running real customers — a modern check-in platform for dance studios, gyms, and martial arts schools.
Class check-ins, beautifully simple.
Port Macquarie's Latin dance community — Cuban salsa, bachata, urban kiz, rueda. SessionHQ was stress-tested at their front desk on Tuesday nights.
Flagship SaaS, mobile apps, AI tooling, edge platforms — and the internal tools that hold it all together.
End-to-end product engineering — multi-tenant architecture, payments, auth, realtime. From first prototype to live customers, like SessionHQ.
React Native & Expo, with custom Swift/Kotlin native modules when you need to go deeper. Ships on iOS and Android from one codebase.
Claude Code skills, RAG and vector search, agent workflows, local-LLM pipelines. Practical AI that ships, not demoware.
Cloudflare Workers, Supabase, PlanetScale, Sentry. Global edge deployment, zero-downtime, observable by default.
Internal CLIs, release automation, Homebrew taps, Claude Code plugins. The small tools that make a team ten times faster.
Architecture, hiring, engineering culture, hands-on mentorship. Twenty years of shipping across startup and enterprise.
Zack Design is software first — but Isaac also shoots photography & videography as Zemonstas. Latin dance events, travel, portraits, and everything in between. Many of the tools on the journal — color grading AI, deflicker runners, audio recut — were born in real editing sessions.
Zack Design delivers high-performance software solutions built with engineering excellence. Led by Isaac Rowntree — Head of Tech at CamperMate, Software Engineer at Redbubble, and Senior Developer at Ray White Group before that.
Two decades across product, platform and team, with deep experience in:
Zack Design rescued a huge project for MJ Penner consulting, re-building from scratch in only a couple of weeks what our previous contractor could not do in months. Isaac's engineering leadership has allowed us to make smarter decisions that have saved us thousands of dollars on every project we've engaged together.
Although Isaac's job title was Senior Developer, he performed many roles — instrumental in all facets of digital development and marketing. Lead architect on the AWS migration, lead generation, intranet builds, and SEO. Values that enhanced not just the dev team but the whole company. I would happily re-employ him — a valuable asset to any team.
Isaac and his team at Zack Design have been an integral part of our online success. Their technical expertise, software development skills, and project management work is outstanding. I would not hesitate in recommending their services.
Modern, proven, and boringly reliable — so products ship faster and stay standing.
Notes on engineering, products shipped, and lessons from the field.
For inquiries, proposals, or questions about your software project — drop a line.
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