RJJ Software

What RJJ Software does

RJJ Software Ltd is a private, founder-owned technology consultancy founded in 2018 and registered in England and Wales (company number 11599743), operating from Leeds, United Kingdom, and delivering services virtually worldwide. The firm is led by Microsoft MVP Jamie Taylor and offers fractional CTO services and strategic technology consulting to growing SMEs, scale-ups, and established businesses across multiple verticals including logistics, healthcare, retail, and education. Named engagements span Ligentia, Servita, Footasylum, Odondo, and others, with documented outcomes including a 75% feature-delivery improvement at Ligentia, a 99% reduction in deployment time for an unnamed client, and 40%+ performance gains from architecture modernization work.

The company's core technology stack is consulting-led rather than product-led, spanning the .NET ecosystem (.NET, .NET Framework, .NET 8), Ruby on Rails, agentic development and AI adoption advisory, and Microsoft Azure cloud services. Its most notable proprietary asset is the OwaspHeaders.Core open-source security library for ASP.NET Core, which has been downloaded over 1.8 million times and underpins the firm's credibility within the .NET security community. Complementary assets include The Modern .NET Show podcast (170+ episodes, 1.14M+ listens across 30+ countries) and a content library covering leadership, psychological safety, AI adoption, and technology strategy.

RJJ Software generates revenue through professional-services engagements on a quote-based model. Initial consultations are virtual (60-90 minutes) and lead into multi-year consulting contracts, with services covering agentic development and AI adoption, developer experience optimization, architecture and modernization advisory, technology strategy consulting, and technical due diligence. Go-to-market is sales-led and driven by thought leadership content (blog, podcast), SEO, the Microsoft MVP credential, regional Chamber of Commerce trade missions, and direct outreach via the website. The firm is registered with the UK ICO under the Data Protection Act and has no disclosed external funding, subsidiaries, or M&A activity.

Name

RJJ Software

Legal name

RJJ Software Ltd

Website

https://rjj-software.co.uk

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

1–10 employees

Short description

RJJ Software Ltd is a Leeds-based, founder-owned technology consultancy providing fractional CTO services, AI adoption advisory, and architecture modernization to UK and international SMEs, scale-ups, and enterprises, led by Microsoft MVP Jamie Taylor.

Ownership category

akta.pro rank

Headquarters

HQ city

Leeds

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Strategic Technology Consulting: RJJ Software generates revenue through consulting engagements providing Fractional CTO services, technology strategy consulting, architecture advisory, and technical due diligence. Services are delivered on a flexible, quote-based engagement model with virtual consultations leading to ongoing consulting relationships.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

RJJ Software is a one-person boutique technology consultancy that delivers fractional CTO services and strategic technology consulting engagements to growing SMEs, scale-ups, and established enterprises. Its paid offerings include agentic development and AI adoption advisory, developer experience optimization, architecture and modernization roadmaps, technology strategy consulting, and technical due diligence for acquisitions. The firm also operates the open-source OwaspHeaders.Core security library and the Modern .NET Show podcast as supporting ecosystem assets.

Product overview

RJJ Software Ltd is a strategic technology consulting firm offering a portfolio of advisory and implementation services rather than a unified software product. The core offering consists of Strategic Technology Consultation Services encompassing Agentic Development & AI Adoption, Developer Experience Optimization, Architecture & Modernization Advisory, Technology Strategy Consulting, and Technical Due Diligence. These are complemented by The Modern .NET Show podcast (170+ episodes) and the open-source OwaspHeaders.Core security library (1.9M+ downloads). The firm operates as a one-person consultancy led by Microsoft MVP Jamie Taylor, delivering fractional CTO and senior technology leadership to scale-ups and established businesses.

Differentiator

Problem solved

Functional benefit

Products and services

• Strategic Technology Consultation Services Senior technology leadership and strategic consulting engagements delivered on a flexible, part-time basis for growing companies. Includes AI adoption, developer experience optimization, architecture modernization, and fractional CTO coverage for SMEs, scale-ups, and established enterprises.
• Agentic Development & AI Adoption Adoption of AI-assisted engineering with agentic development practices. Helps engineering teams implement rules, workflows, and guardrails for reliable AI coding assistance on real codebases, with documented 75% improvement in feature-delivery performance over twelve months.
• Developer Experience Optimization Assessment and transformation of development processes, tools, and culture to improve team productivity. Recent engagements have achieved a 99% reduction in deployment time for client engineering organisations.
• Architecture & Modernization Advisory

Quantifiable outcome

• 75% improvement in feature-delivery performance over twelve months at Ligentia through agentic development implementation
• +3 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Three partnerships are on record, tiered core and minor.

• Greenhead CollegecoreStrategic or Co-development Partner · 1 January 2022Partnership with Greenhead College in Huddersfield providing T-Level student placements since 2022. Jamie Taylor delivers specialized sessions on cutting-edge technologies including AI and modern development practices that fall outside normal curriculum. Stephen Wood, Head of Computer Science, has served as a supporting reference, noting Jamie as 'a true MVP of the digital sector' and valuable STEM ambassador.
• Notre Dame Sixth Form CollegecoreStrategic or Co-development PartnerPartnership with Notre Dame Sixth Form College in Leeds providing T-Level student placements and technology education sessions. The collaboration helps bridge the technology skills gap and prepares students for high-value careers in the digital economy.
• West and North Yorkshire Chamber of CommerceminorOthersRJJ Software is a member of the West and North Yorkshire Chamber of Commerce. Jamie Taylor recently participated in the Chamber's trade mission to the UAE and is recognized as contributing to regional business development initiatives.

Scale indicators5 records

Recent moves2 records

Expansion highlights5 records

Emerging players

• Andela: Global talent marketplace and engineering services platform connecting companies with vetted technical talent — comparable to RJJ Software's fractional CTO/engineering-leadership model, but delivered as a marketplace rather than a single named consultant.
• Turing: AI-driven tech talent platform providing on-demand engineering and senior technical talent — an emerging alternative to fractional CTO / consulting models like RJJ Software's, especially for AI and software modernization work.

Broad incumbents

• Cognizant Softvision: Global IT services firm offering technology consulting, cloud modernization, and digital engineering — overlapping with RJJ Software's enterprise modernization and software architecture advisory across enterprise customers.
• Capgemini Invent: Global consulting arm of Capgemini providing technology strategy, cloud transformation, and engineering advisory — comparable in strategic technology consulting and digital transformation services, but at a vastly larger scale.
• Slalom: US/UK technology and business consulting firm delivering technology strategy, cloud migration, and digital transformation — comparable to RJJ Software's fractional CTO and modernization engagements but with much larger, multi-disciplinary teams.
• Endava: London-headquartered IT and digital services firm providing technology strategy, software engineering, and cloud modernization — closely aligned with RJJ Software's .NET/Azure modernization and architecture advisory services.
• Thoughtworks: Global technology consultancy offering strategic technology advisory, software modernization, and engineering transformation — overlapping RJJ Software's architecture modernization and AI-adoption advisory, but at enterprise scale across many industries.
• Globant: Global digital transformation consultancy delivering technology strategy, AI engineering, and platform modernization — directly comparable in service mix to RJJ Software's fractional CTO, AI adoption, and architecture modernization offerings.

Others

• Packt Publishing: Technical book and video publisher for software developers — adjacent ecosystem player that RJJ Software has been associated with via Jamie Taylor's authoring and Modern .NET Show interviews, and relevant for content-led technical authority in the .NET community.
• Pluralsight: Technology skills and developer-experience platform — adjacent to RJJ Software's developer experience optimization and AI/agentic adoption services, as both target engineering team capability uplift.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Customer concentration

• YouTubeyoutube.com/@TheModernDotNETShow
• Xx.com/rjjsoftware
• Facebookfacebook.com/rjjsoftware

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RJJ Software