Strategic Technology Leadership for Growing Companies

Multi-stack technology consulting (.NET, Ruby on Rails), agentic development, and AI adoption for scale-ups and established businesses navigating complex technical decisions. Fractional CTO services worldwide.

Fractional CTO | Microsoft MVP | 1.5M+ Downloads | 170+ Podcast Episodes | Award-Winning Leader

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About

How I Help Growing Businesses Win

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Agentic Development & AI Adoption

Adopt AI-assisted engineering without the vibe-coding risk. I help your team put agentic development to work on real codebases, with the rules, workflows, and guardrails that keep it reliable. At Ligentia, that approach improved feature-delivery performance by 75% over twelve months.

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Developer Experience Optimization

Your developers’ productivity directly impacts your bottom line. I assess and transform your development processes, tools, and culture to help teams deliver faster without burning out. Recent client: 99% reduction in deployment time.

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Architecture & Modernization Advisory

Still running on legacy systems? I provide strategic modernization roadmaps that minimize risk while maximizing ROI. From monolith to microservices, .NET Framework to .NET 8, I’ve guided businesses through transformations that improved performance by 40%+ while reducing costs.

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Technology Strategy Consulting

Make technology decisions with confidence. Whether it’s buy-vs-build, cloud migration, or framework selection, I provide vendor-neutral guidance based on your business goals, not technology trends.

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Technical Due Diligence & Assessment

Considering an acquisition? Worried about technical debt? I provide comprehensive technical assessments that translate complex architectures into clear business risks and opportunities. Recent assessment helped client avoid £2M acquisition mistake.

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Fractional CTO Services

Get senior technology leadership without the full-time cost. I provide strategic technology guidance, team mentorship, and vendor management on a flexible basis. Perfect for startups and SMEs needing experienced technology leadership during critical growth phases.

Our Clients

From billion-dollar enterprises to high-growth startups, I’ve helped organisations turn technology into competitive advantage. That work includes AI adoption at Ligentia, a bespoke AI data-analysis platform for Sage Publishing, .NET and Azure engineering for Footasylum, high-throughput messaging systems for ghd, rescuing an inherited product at Servita, and bespoke software for ABM Kitchens and Bathrooms.

 The Modern .NET Show  Netlogon  Packt Publishing  Servita  Odondo  LogTrade  Sage Publishing  Footasylum  GHD  ABM Kitchens and Bathrooms  The Cynical Developer

Ready to Make Better Technology Decisions?

Book a no-obligation consultation for an honest assessment of your situation and clear next steps you can act on straight away, whether or not we work together.

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Client Successes

testimonials backdrop
Boris Rabkin

Boris Rabkin

CIO, Ligentia
July 4th, 2025

Jamie is an absolute Rockstar. Within a week of him working with us, he had already identified five different areas for improvement, given two inspiring talks, and created a handful of engaging demos, all leading to almost immediate ROI.

Rich Story

Rich Story

Regional Director, Servita
Jan 13, 2023

We engaged Jamie to augment our existing team to overcome some real challenges faced when we inherited a failing product from a different supplier. Jamie worked diligently and meticulously, making a real difference in our plight to overcome these challenges and rescue something that now provides significant benefits for our customers

Andy Norton

Andy Norton

Software Development Manager at FootAsylum

Jamie came in as a software consultant, working alongside our Platform team to coach them on .NET best practices and get them working properly in pairs and following SOLID and DRY etc. During his time he helped with our microservices architecture in Azure, working out some of the high-level flows and then working to improve unit test coverage and integrations with 3rd parties. He has tons of knowledge and is a real asset as a consultant, and would sit with different devs helping to un-block them. I’d have no problems recommending him for work in the .NET/Azure space.

Emma Barnes

Emma Barnes

Senior Analytics Strategist
May 4, 2015

You need Jamie in your office or on your project. He is very good at helping others understand something that is new to them. Perfect at interdepartmental working

Carl Martin

Carl Martin

Director of Recruitment at Metier Recruitment

We recruited Jamie to work on a contract basis for one of our best clients based in Leeds. Jamie did a very good job for us and he will certainly be at the top of the list for when we have similar vacancies in the future. Highly recommended.

Latest News

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Why Business Leaders Choose RJJ Software.

Strategic Clarity

Cut through complexity with architecture reviews, technology assessments, and clear roadmaps

Rapid ROI

Identify improvements and deliver actionable recommendations within days, not months

Proven Track Record

Four-time Microsoft MVP for Developer Technologies, a distinction held by roughly a thousand people worldwide; creator of OwaspHeaders.Core (1.9 million downloads) and host of The Modern .NET Show podcast with 194 episodes

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Contact Us

Contact Details

Don’t miss your chance to have us work on your project, increase your team’s agility and ability to create secure code, and to realise your digital potential. Schedule Strategic Consultation today!

Email: info@rjj-software.co.uk

Don't take our word for it, here's a client testimonial:

Boris Rabkin

CIO, Ligentia

Jamie is an absolute Rockstar. Within a week of him working with us, he had already identified five different areas for improvement, given two inspiring talks, and created a handful of engaging demos, all leading to almost immediate ROI.

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