Fractional CTO • Interim Leadership • Transformation
Technology leadership for businesses navigating growth, change and complexity.
Working with founders, boards and leadership teams to make complex technology decisions, strengthen engineering organisations, modernise platforms, and turn ideas into products.
Technology leadership
Ways to work together
Start with a focused conversation, then use as much or as little senior technology support as the situation needs.
Start with a working session
A free 1–2 hour discovery session to unpack the problem, identify the real decision points and decide whether further work is justified.
Advisory & reviews
Ad-hoc CTO advice, architecture and product reviews, due diligence or focused decision support, from a few hours to a short defined engagement.
Fractional / interim leadership
Embedded senior technology leadership for part of the week, or full-time through a transition, delivery problem or leadership gap.
FORGE™
A structured venture assessment covering proposition, feasibility, architecture, MVP, team, cost and roadmap for new or stalled technology ventures.
For investors, acquirers & portfolio teams
Understand the technology behind the investment.
Independent CTO-level support from pre-deal technology due diligence through 100-day planning, portfolio improvement and technology value creation.
Explore investor & M&A advisory →When technology becomes a business problem
Most engagements start with something bigger than “we need some code”.
The hard part is usually deciding what matters, what to build, how to organise delivery, where the real risks sit and how technology supports the commercial plan.
Technology has outgrown the business
Architecture, teams and processes that worked at one stage of growth no longer support the next.
A product needs to become production-ready
Turn prototypes, POCs and early MVPs into secure, supportable systems with a credible path to scale.
Delivery has stalled
Recover programmes where priorities, architecture, suppliers, governance or engineering have drifted off course.
You need CTO leadership, not necessarily a permanent CTO
Executive technology leadership during growth, transition, funding, restructuring or recruitment.
Technology and commercial strategy are disconnected
Align investment, roadmap, product and technical capability around measurable business priorities.
An emerging technology looks promising
Evaluate AI, computer vision, robotics and other technologies and build a real-world business plan to exploit advantages.
Services
Defined technology interventions with a clear outcome.
When you do not need an open-ended consulting programme, these short senior-led engagements are designed to answer a specific question, expose material risk and leave the business with an actionable plan.
01
Technology Health Check
A rapid independent review of architecture, delivery, team capability, resilience, technical debt and investment priorities.
02
Platform Recovery Review
Find the causes behind instability, failed releases, technical debt and stalled modernisation, then define the recovery route.
03
CTO & Technical Due Diligence
Independent technology assessment for investors, acquisitions, boards, fundraising and major strategic commitments.
04
Development Partner & Vendor Review
Assess whether supplier delivery, technical quality, governance and commercial incentives are helping or hindering the business.
05
AI Readiness & Governance Review
Prioritise credible AI use cases and identify the data, architecture, skills and governance needed to adopt them safely.
06
30-Day Delivery Recovery Plan
A short intervention for technology programmes that have lost pace, clarity, ownership or executive confidence.
07
FORGE™ Venture & Technology Assessment
Connect proposition, differentiation and commercial value to architecture, MVP, team, costs, risk and a credible delivery roadmap.
Leadership
Senior technology leadership when you need it.
From embedded executive leadership to a focused technical assessment, engagements are shaped around the decision, delivery problem or transition in front of the business.
01
Fractional CTO
Embedded senior technology leadership without the cost or delay of a permanent executive hire.
- Technology strategy & roadmap
- Board / investor support
- Engineering leadership
- Architecture & platform decisions
- Hiring & organisation design
- Security, risk & operating model
02
Interim Technology Leadership
Leadership through transition, departure, restructuring or a programme that needs stabilising quickly.
- Interim CTO / Technology Director
- Delivery stabilisation
- Leadership during recruitment
- Supplier & team reset
- Executive reporting
- Risk assessment
03
Technology Transformation
Modernise technology estates and delivery models while keeping the organisation functioning in the real world.
- Legacy modernisation
- Cloud strategy
- Enterprise integration
- Operating model change
- Delivery governance
- Global delivery models
04
Product & Engineering
Move products from concept through architecture, team design and delivery into dependable production systems.
- Product discovery
- Technical feasibility
- Architecture
- MVP / POC definition
- Engineering team design
- Production readiness
05
AI & Emerging Technology
Apply new technology where it creates real operational, product or commercial value.
- Generative AI / LLMs
- Computer vision
- Intelligent automation
- Robotics & autonomous systems
- AR / VR & edge computing
- Blockchain where appropriate
06
Technology Due Diligence
Independent technical assessment for boards, investors, acquisitions and businesses preparing to scale.
- Architecture assessment
- Engineering capability
- Product feasibility
- Technical debt
- Scalability & resilience
- Cost & investment readiness
Verticals
Experience across regulated, enterprise and deep-technology environments.
01
Fintech & Regulated Financial Services
Pensions, wealth platforms, lending, investment systems and digital assets.
Onboarding • AML/KYC • investment accounts • provider integration • valuations & transactions • auditability • operational resilience
02
SaaS & Technology Ventures
Startup and scale-up technology from discovery through production and growth.
0→1 products • MVP • architecture • engineering teams • technical debt • scaling • investment readiness
03
Enterprise & Digital Platforms
Complex digital estates where customer experience, integration, data and operational systems meet.
Commerce • customer platforms • CRM • ERP • CDP • cloud • integration • transformation
04
AI & Intelligent Systems
Applied AI and automation where the technology has a clear operational or commercial purpose.
Generative AI • computer vision • cybersecurity • robotics • autonomous systems • voice • decision support
05
Industrial & Field Technology
Technology operating beyond the browser, from field work and utilities to transport and agritech.
IoT • geospatial • asset systems • field workflows • telecoms • drones • edge AI • RFID
Selected work
Complex technology. Practical outcomes.
From regulated platforms to global transformation, AI products and technology operating in the physical world.
Regulated platform modernisation
Investment platform modernisation while keeping the business moving.
Fractional technology leadership spanning product, architecture, engineering and cloud operations to upgrade a regulated financial platform. Designed third-party financial integrations, portfolio data and operational architecture.
Global capability & enterprise transformation
Scaling a global engineering capability from zero.
Creating and building a multidisciplinary software engineering & solution consulting capability across Europe, North America and Asia. Leading architecture consulting for customer-platform transformation spanning service, customer data, marketing, commerce and loyalty.
AI cybersecurity platform
Taking AI-driven threat detection from architecture to solution.
Led architecture and technical delivery for an early-stage cybersecurity platform combining remote monitoring, machine-learning-assisted threat detection, web and mobile applications and conversational AI.
Computer vision & field technology
Computer vision where decisions have real-world consequences.
Leading user experience design and platform architecture for a field service hazard detection solution using computer vision, AI and augmented workflows, with related R&D across robotics, autonomous monitoring
Principal-led technology advisory
Senior leadership, directly involved.
I’m Jerome MacGillivray, a CTO and Technology Director with more than 25 years’ experience building technology products, teams and organisations.
I’ve worked with startups, international technology businesses, regulated financial platforms, public-sector organisations and global enterprises across Europe, North America, Asia and the Middle East.
JMCG Digital is intentionally principal-led. Every engagement is senior-led from strategy through delivery. Where specialist capability is required, work can be structured around client teams, existing suppliers or trusted engineering partners.
International by design
Technology leadership where the work needs to happen.
Based in the UK and available for engagements across Europe, North America, Asia and the Middle East.
Remote, hybrid and on-site engagements. Available for international travel, interim assignments and relocation.
Contact
Have a technology problem worth solving?
Tell me what you are trying to achieve, what is getting in the way and where you need senior technology leadership.