Full-stack product work — flagship SaaS, web, mobile, cloud and AI — delivered with engineering rigour and a designer's eye.
Class check-ins, beautifully simple.
A full-stack SaaS built, shipped, and running real customers — a modern check-in platform for dance studios, gyms, and martial arts schools.
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.
Every client gets a design system of their own — researched from the real business, built by hand, and audited before it ships. The colour strips are the actual tokens running in each site's production CSS.
Their 90s mark — a condensed wordmark standing in a strip of grass — was genuine equity, so we traced it from poster art and rebuilt the site around it: riveted spec plates carrying the shop's own data, a live open/closed readout in Melbourne time, and four service pages written from real search demand.
A refine-not-replace job. The paddock palette and harvest photography were already working, so the budget went where it counted: contrast fixed to AA on every ground, claims softened to what's verifiable, structured data repaired, heroes self-hosted — and the logo's teal finally let out of quarantine.
A 14 kg bale with a moisture spec is a real product, so the product leads: a kraft bale-label tag carries the spec the way the printed wrap does, all 407 stockists render as indexable HTML with the map as enhancement, and every marketing claim was audited against a source before it shipped.
Sister plant to Breeder's Choice, so it got a deliberately different register: iron greys and the logo's red, a numbered mill line from saw to baler, and the product spec set as a bale ticket. Same structure, different plant — the two sites cross-link instead of competing.
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.
Notes on engineering, products shipped, and lessons from the field.
For inquiries, proposals, or questions about your software project — drop a line. You'll get Isaac, not a form pipeline.
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