Timothy Johnson
📍 Reading, United Kingdom 🇬🇧
Senior Manager, Digital and Research Compute Platforms, Johnson Matthey. Ten years and counting, from research scientist to leading technical teams across AI, cloud and high-performance computing.

I lead the Digital and Research Compute Platforms team at Johnson Matthey, a global team of 20 developers and scientists working at the crossroads of science, AI and high-performance computing. I started in chemical research, where systems were physical, messy and came without a manual. That shaped how I work: start with the problem, not the technology.
Leadership and Delivery
I have led technical teams through the shifts that make people nervous: new platforms, new ways of working, and reorganisations where the ground moves under you. The technical side is rarely the hard part. Getting people aligned, keeping them honest about what they do not know, and making space for them to grow into new roles is the real work.
- Johnson Matthey’s HPC to the cloud. Owned the final decommissioning of all physical HPC infrastructure across multiple sites and the full transition to an Azure-hosted service, with no break in scientific output.
- Rebuilt the compute platform function. Owned full team transformations, from consultation and restructuring through to hiring new capability, aligned to a multi-year platform roadmap.
- Took enterprise AI from pilot to production. Responsible for the organisation-wide rollout of Microsoft Copilot, including adoption frameworks and governance, and deployed an internal AI translation service used across global operations.
Day to day that means owning the governance of the compute portfolio: sitting on platform and portfolio boards, running the operating rhythm of dependencies, risks and decision gates, and producing investment cases and reporting that senior leaders can act on. I regularly deputise for senior leadership on technical and delivery matters, internally and at industry forums.

Making AI Useful
AI is everywhere. The challenge is turning it into something people can adopt, support and rely on. In my role and in my writing I focus on what is worth investing in, how to manage the risk, and how to build a service around these tools rather than a demo.
I hold the Azure AI Engineer Associate and FinOps Certified Practitioner certifications, which cover the two questions leaders ask most: does it work, and what does it cost.
That discipline has delivered 10 to 20 percent year-on-year savings on a roughly £2M operating budget, including an 8 percent cut in HPC cluster costs with no loss of scientific productivity.
Quantum Computing & HPC
I initiated and own Johnson Matthey’s quantum computing strategy, sponsoring internal capability development and exploring hybrid quantum-classical approaches for materials science. Most coverage of the field is either too theoretical or too hyped. I am interested in the middle ground: what leaders should pay attention to, and what they can safely ignore. I run QuantumExecBrief, a daily briefing and weekly newsletter on quantum computing for executives.

Research Background
I hold a PhD in Materials Science from the University of Liverpool and spent the first years of my career as a research scientist at Johnson Matthey. That work produced 22 peer-reviewed publications, now past 1000 citations, and twice secured beam time as principal investigator at the ISIS Neutron and Muon Source. I also published on using Emacs in chemical R&D, an early sign of the tooling interest that runs through everything since.
Building and Writing
I build things to understand them. Alongside QuantumExecBrief I run EmacsNews, a news aggregator for the Emacs community, and initweave, a configuration builder that removes the friction of day one with Emacs. My own work runs on a plain-text system in Emacs and Org-mode, and I write about it because it has changed how I work.
Recognition
- 22 peer-reviewed publications with 1000+ citations in chemistry and materials science
- Invited speaker at BuildStuff 2024 and the Microsoft Executive Round Table on HPC in manufacturing
- STFC ISIS Impact Award 2023, Economics category
- Azure AI Engineer Associate and FinOps Certified Practitioner
- RSC Chartered Chemist and Prosperity Partnership mentor
This Site
This is where I write about what I am learning and building: enterprise AI, quantum strategy, and getting real value from fast-moving technology. If any of it is useful to you, I would like to hear about it.