Fractional CTO Services in Oxford

Jon Macklin – The Bytesized Fractional CTO

  • Over 27 years of experience.
  • VC funding and trade sales.
  • Defined, shipped & scaled products for major global brands.
Contact a CTO
Improbable
Huler Social
Amazon Web Services
Lloyds Bank
bet365

I help Oxford’s CEOs Scale Products, Teams & Performance

From the spin‑outs of Oxford Science Park to the quantum labs at Harwell Campus, Oxford sits at the crossroads of world‑class research and commercial ambition. I’ve been part of that journey first‑hand: one of my early start‑ups landed Thames Valley Police as its very first enterprise customer. Since then I’ve helped founders turn technical breakthroughs into investor‑ready products with global revenue.

Over the past 27 years, I’ve built startups from idea to exit, scaled technology at bet365 to handle millions of concurrent users, enabled established companies transform outdated tech, launched new services at AWS, bootstrapped exciting new brands, and built the product direction and technical strategy for the world’s most complex immersive simulations.

Whether you’re commercialising university IP on Old Road Campus, scaling a biotech at Harwell, or need seasoned leadership without the full‑time salary overhead, I deliver clarity, confidence and sustainable velocity right here in Oxford or remotely across the UK.

Jon Macklin – Fractional CTO Oxford

Fractional CTO Services

Subscribe to a skilled CTO

Bring a seasoned CTO on board part‑time to guide your technology decisions, leadership and strategy.

Tech & Product Advisory

Plan product roadmaps, streamline development and ensure your tech stack can scale with your growth.

Innovation and R&D

Innovation and R&D to forge your tech breakthroughs.

Latest Fractional CTO Insights

Scaling your startup | Fractional CTO Oxford
As a Fractional CTO I can Scale Your Startup

Key lessons learned from taking multiple tech ventures from zero to millions in revenue.

Read More →
Product Roadmap | Fractional CTO Oxford
As a Fractional CTO I can Help Build Your Product Roadmap

Product Roadmap Secrets: how to balance innovation, user feedback and business goals to build a roadmap that delivers.

Read More →
Tech Architecture | Fractional CTO Oxford
As a Fractional CTO I can Build Your Tech Architecture

Tech Architecture 101: designing a scalable, secure and pragmatic foundation for fast‑growing teams and companies.

Read More →

Get in Touch

Ready to take your tech to the next level? I’d love to hear about your project, team or idea. Drop me a message or email jon@bytesizedcto.com.

Bytesized CTO delivers flexible, high‑impact leadership across the UK’s tech hubs: