Grantley
Inventive Tech Solutions
Technology and product consulting from Grantley Day, with 25+ years turning bold ideas into shipped products.
Inventive Tech Solutions
Technology and product consulting from Grantley Day, with 25+ years turning bold ideas into shipped products.
About
I am a Melbourne based technology and product leader with 25+ years spent building and guiding high performing teams across Australia, San Diego, Irvine, New York, and the San Francisco Bay Area. My background spans product management, interactive entertainment, and technology leadership, including licensing and publishing work with global brands such as Wizards of the Coast and Dungeons & Dragons.
I started Hatsumei to bring that experience directly to founders and teams who need a practical partner. Someone who has built products, led organisations, and shipped under pressure, helping them invent what comes next.
Impact
A selection of companies and products I've helped shape over the years. Hover a card to see what I actually did.
Engineering Manager for the Casino team at Easygo, leading the engineers behind Stake Originals, third party integrations, and core wagering flows across stake.com in multiple regulated markets, with a focus on reliability and incident response for high traffic real money systems.
Director of Development managing five simultaneous multi platform titles across mobile, PS4, Xbox, PC and custom hardware, including a production credit on Age of Empires II, plus a VR experience for a top three US medical device company and a casino application for a leading hardware vendor.
As CTO, built Australia's first reproductive life stage product from the ground up, including medical grade encryption, a WebRTC telehealth platform, and integrations for prescriptions and scheduling.
Director of Development managing five simultaneous multi platform titles across mobile, PS4, Xbox, PC and custom hardware, including a production credit on Age of Empires II, plus a VR experience for a top three US medical device company and a casino application for a leading hardware vendor.
Director of Development managing five simultaneous multi platform titles across mobile, PS4, Xbox, PC and custom hardware, including a production credit on Age of Empires II, plus a VR experience for a top three US medical device company and a casino application for a leading hardware vendor.
Founded and led this Melbourne studio as CEO and lead engineer for eight years, shipping 40+ commercially released iOS and Android titles, including work backed by Film Victoria funding.
Brought sincerity and vision to production and engineering leadership on Dungeons & Dragons Online, part of a portfolio of AAA and online titles delivered with Wizards of the Coast and other global publishers.
Brought sincerity and vision to production and engineering leadership on Dungeons & Dragons Online, part of a portfolio of AAA and online titles delivered with Wizards of the Coast and other global publishers.
Senior technology and production leadership on AAA titles including The Sims and SimCity 4, managing multi million dollar budgets and large international engineering and production teams.
Services
Practical consulting from an experienced technology leader, focused on turning ideas into products that ship and businesses that operate more effectively.
Turning early ideas into validated products. I help teams define, prototype, and reduce the risk of new concepts. This is the Hatsumei work of inventing what comes next, approached with discipline rather than guesswork.
Modernising legacy systems, processes, and team structures. I work with leadership to untangle technical debt and organisational drag so teams can move faster with less friction.
Product, publishing, and licensing strategy for gaming and interactive entertainment businesses, drawing on two decades within the industry, including major brand licensing and global publishing agreements.
How I Work
A candid conversation about where you're stuck and what success looks like.
Practical strategy, prototyping, and planning, developed with your team rather than handed down to it.
Clear execution support until the product, process, or team is shipping on its own.
Get In Touch
Whether it is a new product, a stalled team, or a strategy that needs another experienced perspective, reach out. I typically respond within one day.