Jamie Buchanan
Founder & CTO, Rogue Digital
Hemel Hempstead, United Kingdom
Who I am
I'm a technology leader with over 15 years of experience architecting and scaling enterprise systems across automotive, travel, e-commerce, and financial services. I founded Rogue Digital to give growing businesses the same calibre of senior technical leadership that venture-backed scale-ups rely on — without the twelve-month procurement cycle or the agency overhead.
Most of my career has been spent inside operating businesses, not agencies. That distinction shapes how I think about software: technology is a means to commercial outcomes, not an end in itself. The best architectures are the ones that let a business move faster, hire more cheaply, and change direction without collapsing. The worst are the ones that look elegant on a whiteboard and become expensive constraints eighteen months later.
The common thread across everything I've built is a bias towards simplicity under pressure. Distributed systems, AI pipelines, headless commerce, legacy migrations — the interesting engineering problems are almost always the same problem wearing different clothes: how do you move fast without accumulating the kind of complexity that will quietly strangle the business two years from now.
Experience
Founder & CTO — Rogue Digital (2024 – present)
Leading technical strategy and delivery for a digital transformation agency serving mid-market and enterprise clients. Rogue specialises in AI-native product work, e-commerce replatforming, CRM and workflow automation, and legacy modernisation. The operating model is senior-only: every engagement is led and delivered by people with decades of experience inside operating businesses.
CTO — Vanarama (2017 – 2024)
Provided board-level CTO leadership and Director-level analytics and credit strategy across a seven-year transformation. Scaled the in-house technology and product team from a single person to over 30, built the credit risk and data analytics capabilities required for an FCA-regulated financial services business, and led the technical workstreams for two VC funding rounds and the company's £200m acquisition by AutoTrader UK Plc. Company valuation grew 10× during that period.
Earlier career
Prior to Vanarama, I worked across automotive, travel, and technology sectors in engineering and architecture roles. I learned the hard way that the most expensive architectural decisions are the ones made without commercial context — elegant rewrites with no measurable business outcome, premature platform migrations, over-ambitious integrations that outlasted the strategic rationale for building them. Those early lessons are why I now start every engagement by asking what the business is actually trying to do, before anyone opens an IDE.
What I focus on
My work sits at the intersection of technical architecture and commercial strategy. I'm most useful to companies making decisions whose consequences will play out over years — platform migrations, legacy modernisation programmes, AI adoption, scaling the engineering organisation, or positioning the business for investment or acquisition.
- —E-commerce architecture (Shopify Plus, Magento, headless)
- —Legacy system modernisation and strangler-fig migrations
- —AI and RAG pipelines in production
- —Technical due diligence for investors and acquirers
- —Fractional CTO and engineering leadership
- —Technical SEO for e-commerce at scale
Writing
I write regularly on the Rogue Insights blog — practical guides for founders, CTOs, and senior operators on the decisions that actually matter when scaling a business. The goal is to publish the kind of writing I wish I'd had access to fifteen years ago: opinionated, grounded in first-hand experience, and honest about the trade-offs.
Get in touch
If you're thinking about a technology decision whose consequences will outlast the current sprint, I'd be happy to hear about it.