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CacheStack

About

Built to solve real problems.

We started CacheStack because we believe UK businesses deserve digital systems that actually work: fast, reliable, and built to last.

The team

Two founders. Direct access.

Thimoth Rajapathma, Co-Founder & Technical Lead

Thimoth Rajapathma

Co-Founder & Technical Lead

Where business problems meet technical execution.

Thimoth is naturally drawn to the space where business problems meet technology. He enjoys taking messy processes, unclear workflows, or early-stage ideas and turning them into structured digital systems that are easier to use, manage, and scale. At CacheStack, he brings a mix of technical curiosity, commercial thinking, and hands-on delivery, with a strong interest in AI, automation, finance, dashboards, and modern web platforms. His working style is fast-moving, practical, and ideas-led, with a focus on building things that feel genuinely useful rather than just technically impressive.

Focus

  • AI & automation consulting
  • Finance and data-led problem solving
  • Workflow design & implementation
  • Client-facing solution architecture

Strengths

  • AI Workflows
  • Finance & Data
  • Automation
  • Product Strategy
  • Client Solutions
  • Digital Transformation
thimoth@cachestack.co.ukLinkedIn
BW

Billy Wassell

Co-Founder & Software Engineer

Robust systems. Scalable products. Durable engineering.

Billy is a technically driven builder with a strong interest in data systems, automation, and practical digital products. With a systems-oriented mindset, he naturally gravitates toward projects involving infrastructure, APIs, data engineering, and scalable product architecture. He is especially interested in using modern AI and software tooling to improve workflows, simplify decision-making, and build products with long-term value. He approaches problems analytically and thoughtfully, balancing technical depth with practical usability, focused on creating solutions that are durable, efficient, and genuinely useful.

Focus

  • Backend infrastructure & APIs
  • Data systems & engineering
  • Scalable product architecture
  • Security engineering at Sophos

Strengths

  • Backend Systems
  • Data Engineering
  • APIs & Infrastructure
  • Security
  • Scalable Architecture
  • Product Development
billy@cachestack.co.ukLinkedIn

Agentic staff

And the team we built to work alongside us.

AI agents we built and run inside CacheStack. The same kind of automation we build for clients, working on our own business every day.

  • Core system

    Cora

    Operations intelligence

    Our core AI system. Answers our phone line, drafts proposals and contracts, briefs us on the finances, and answers questions from the business’s own data.

  • Arthur

    Chief of Staff

    Coordinates the team and keeps priorities, reporting and approvals moving.

  • Clint

    Client delivery

    Keeps clients up to date on progress and drafts delivery updates for review.

  • Jasper

    Content & editorial

    Plans the content calendar and drafts articles and posts for us to edit.

  • Nora

    Follow-up coordinator

    Makes sure no enquiry or call goes without a timely follow-up.

  • Harper

    Growth

    Researches markets, pricing and new opportunities for the business.

  • Rowan

    Account intelligence

    Builds the background on the organisations we work with, before every conversation.

  • Milo

    Relationships

    Looks after our client relationships and keeps contact history in order.

The short version

CacheStack exists because too many businesses are stuck with tools that don’t fit, websites that don’t convert, and manual processes that waste hours every week.

Based in London, we are two founders building digital systems (websites, web applications, and automation workflows) using modern tools and clean engineering practices. We work with businesses across the UK, move quickly, and care deeply about outcomes.

We don’t do agency theatre. No unnecessary meetings, no inflated timelines, no buzzword-heavy proposals. You get direct access to the people building your product, clear communication, and work that speaks for itself.

A small London skyline in violet ceramic and frosted glass: the Shard, the Gherkin and Big Ben.

Values

What drives us.

  1. 01

    Clarity

    We communicate plainly, scope precisely, and document thoroughly. No ambiguity, no jargon.

  2. 02

    Craftsmanship

    Every line of code, every design decision, every interaction is intentional. We don’t ship sloppy work.

  3. 03

    Speed

    We move fast without cutting corners. Clear processes and sharp tools mean shorter timelines and faster impact.

  4. 04

    Reliability

    We hit deadlines, answer messages, and build things that work. Today and two years from now.

How we work

Two founders. Big output.

We keep the company lean and our process tight. Every project starts with a clear scope and ends with a polished deliverable. No feature creep, no runaway timelines.

You work directly with the people writing the code and shaping the product. That means faster decisions, fewer miscommunications, and a final build that matches your vision.

We use async communication by default, with scheduled check-ins when you need them. Everything is documented, version-controlled, and built with handover in mind.

Our toolkit

Modern tools. Proven patterns.

  • Next.js
  • React
  • TypeScript
  • Node.js
  • PostgreSQL
  • TailwindCSS
  • Framer Motion
  • Python
  • n8n
  • Vercel
  • AWS
  • Figma
  • Prisma
  • OpenAI API
Legal name
CacheStack Ltd
Company number
17179570
Registered in
England and Wales
Registered office
167-169 Great Portland Street, 5th Floor, London, W1W 5PF

Get started

Ready to discuss your project?

Book a free 30-minute call. We will ask the right questions, give you an honest assessment, and explain exactly how we would approach your project.

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