HTML Studio

Fractional CTO · Senior Developer · UK-based

Fractional CTO + senior devfor growing B2B companies.

Reduce risk, make better decisions, build systems that scale. You get hands-on CTO-level strategy and execution without the cost of a full-time hire or the unreliability of agencies.

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Based between Birmingham, Derby, Nottingham and Leicester. Remote-friendly across the UK.

What you get

  • Reduced risk: systems that won't break when sales grow.
  • Reliable execution: systems built right, not rushed.
  • Better decisions: technical guidance you can trust.
  • Fewer surprises: clear communication, realistic timelines.
UK-based senior technologist. Hands-on strategy and execution. No juniors, no outsourcing, no agency fluff.

"Excellent, first-class work as usual. Thanks, Oliver."

Mickey Wong, Digital Strategist

Trusted by businesses across the Midlands

Cathexis
TWT
Biffa
IVF Babble
University of Oxford

Problems we solve.

The real pain points that cost you time, money, and sleep. Written in plain English, not technical jargon.

We don't know if our systems will hold when sales grow. Everything feels fragile, and we're one big order away from something breaking.

Tech debt is piling up. Every quick fix makes the next change harder. We're stuck in a cycle of patches.

We can't get straight answers. Every technical question becomes a sales pitch or a lecture. We need someone who speaks business.

Our legacy systems are holding us back. They work, but they're slow, clunky, and impossible to integrate with modern tools.

We're paying too much for too little. Agencies overcharge, teams underdeliver, and we're not getting the leverage we need.

What we build for you.

We sit between “freelance dev” and “full agency” – designing and delivering the systems that run your operations, finance, and customer experience.

ERP & legacy system modernisation

Wrap legacy systems in modern UIs, APIs, and automation so you can move fast without a full rewrite.

Internal tools & portals

Order portals, customer dashboards, and internal apps that connect directly to your existing systems.

Integrations & automation

Open Banking, EDI, Twilio, email, and custom APIs to stitch together the tools your teams already use.

AI workflows that actually make money

Use AI to remove manual work from quoting, customer service, or operations — not just generate marketing fluff.

Customer facing applications

Customer facing web applications and apps that hook directly to your existing systems.

Ad hoc consultation

Need expert technical advice on architecture, technology choices, or a specific challenge? Book a consultation session to get CTO-level guidance without a long-term commitment.

How it works.

Simple, believable structure. No hidden complexity, no agency games.

1. Initial audit

Technical and delivery audit. We identify what's broken, what's risky, and what to fix first.

2. Fractional CTO

Ongoing fractional CTO engagement. Strategy, architecture, and decision-making support.

3. Hands-on delivery

Optional hands-on delivery support. We build, integrate, and ship the work.

Flexible pricing options.

Choose from monthly subscription plans for ongoing delivery, or book ad hoc consultation sessions for expert guidance on specific challenges. Contact us to discuss pricing and which model works best for your needs.

Solo

1 active project at any time

SMEs making steady improvements to one area of the business.

Growth

2 active projects at any time

Growing teams juggling multiple systems or internal tools.

Scale

3 active projects at any time

Ops-heavy companies with several departments to support.

Project = one clearly defined initiative: e.g. "New Portal", "New App", or "AI-assisted quoting". Prefer one-off consultation? Get in touch to discuss.

Past Projects

Real projects we've delivered for businesses like yours.

Legacy ERP Modernisation with a Modern Web Interface

Modernised a mission-critical Progress OpenEdge ERP with over 30 years of business logic. Built an Angular-based web interface that sat alongside the existing system, preserving all core ERP logic while delivering modern UX. Significant performance gains and reduced time-to-complete tasks. Zero loss of business logic or operational capability. The ERP remained the same system — but finally behaved like a modern one.

Manufacturing · UK-wide

Excel to Web-Based Quoting System for Surveillance Solutions

Replaced a heavily-modified shared Excel spreadsheet with a robust Angular-based quoting platform. Preserved 100% of complex configuration logic including hardware compatibility, licence dependencies, and interlinked quote lines. Thousands of quotes generated, system running successfully for multiple years with minimal maintenance.

Surveillance Solutions · UK-wide

Customer Self-Service Portal Integrated with ERP

Built a React-based customer portal directly integrated with ERP for a high-volume B2B distributor. Over £30 million in orders processed in 2025. Real-time stock visibility, account-specific pricing, pay-by-bank integration. Significant channel shift from phone to online, freeing sales teams from manual order handling.

B2B Distribution · UK-wide

Microsoft Teams–Integrated Training Portal

Built an Angular-based training platform for a multi-company organisation. Automatic Teams meeting creation, calendar invites, and session scheduling. Configurable assessments with automatic grading and PDF certification. Full audit trail for compliance. Replaced fragmented email-based processes with a scalable, automated training workflow.

Multi-Company Organisation · UK-wide

Legacy ERP Integration with Twilio SMS

Designed a decoupled Node.js worker queue architecture to integrate Twilio SMS with a legacy ERP. Asynchronous message processing ensures no performance impact on core ERP operations. Two-way SMS support with webhook ingestion. Multi-company support with separate sender IDs and message templates. Modernised customer communication without rewriting the ERP.

Multi-Company Business Group · UK-wide

Custom Zebra Handheld Scanner Application for Warehouse Operations

Built a bespoke application deployed directly onto Zebra handheld scanners for a high-throughput warehouse. Enforced correct process flows with task-driven workflows and step-order validation. Barcode-only input eliminates manual entry. Centralised permissions via web management layer. Significant reduction in picking errors by forcing correct behaviour at device level rather than detecting errors later.

Warehouse Operations · UK-wide

This is for you if...

You're a B2B company with 10–100 staff, and tech that's business-critical but poorly owned. You need senior-level expertise but can't justify a full-time CTO.

Not for: Startups, agencies building marketing sites, or companies that need 24/7 support teams.

Frequently asked questions

What's the difference between subscription and ad hoc consultation?

Subscription plans give you ongoing delivery capacity for active projects, perfect for businesses with a roadmap of improvements. Ad hoc consultation is ideal for one-off technical guidance, architecture reviews, or when you need expert input on a specific challenge without a long-term commitment.

How quickly can you start working on a project?

We typically start with a short technical discovery call to understand your systems and priorities. From there, we can begin work within 1-2 weeks, depending on your chosen engagement model and current capacity.

Do you work with businesses outside the Midlands?

Yes, we're remote-friendly across the UK. While we're based between Birmingham, Derby, Nottingham and Leicester, we work with businesses nationwide. We can arrange in-person meetings when needed, but most of our work happens remotely.

What technologies do you work with?

We're technology-agnostic and choose the right tools for each project. We commonly work with React, Node.js, Angular, SQL, and modern cloud platforms. We also integrate with legacy systems, APIs, and third-party services like Open Banking, EDI, and Twilio.