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FRACTIONAL & INTERIM PROGRAMME LEADERSHIP FOR BRANDS AND RETAILERS

Re-platforming, systems integrations, international growth, agentic commerce. 

From strategy through execution.

I've been at the build side of ecommerce since the beginning - from developing the first commerce platforms and early chat rooms, through the rise of marketplaces, social commerce, composable and headless architecture, to the agentic era we're moving into now. That experience shapes the decisions I make when leading transformation programmes - much of what looks new has been navigated before, in a different form.

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Every engagement is different. Some clients need someone to shape the approach from the start. Others have direction but need a seasoned pair of hands to make delivery successful. 

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If you're heading into something significant, expanding overseas, replatforming, planning your Agentic response or in the middle of a challenging programme, I'd welcome a conversation.

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Working with top tier clients and partners

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What I Do

Senior ecommerce programme leadership across strategy, foundations, and execution.

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Strategy

Helping you make the right decisions before execution begins. From platform and technology selection to marketplace expansion, international growth, and commercial proposition - I bring the experience to shape the approach, stress-test the thinking, and ensure the programme is set up to deliver real business outcomes.

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Governance

The difference between programmes that succeed and those that don't is rarely the technology - it's the foundations on which the programme is based. I help establish optimal operating models, communication & team structures, and a governance framework that gives complex programmes clarity.

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Execution

Owning the delivery end to end and working within your team - not directing from a distance. I manage blended teams of internal and consultancy resource, drive stakeholder alignment, maintain momentum, and keep the programme on track from kickoff through to go live. Able to lead in many frameworks: waterfall, agile and hybrid.

How we can work together

Programme Health Check: fixed fee, two weeks
A rapid, independent review of your programme: plan, governance, team, vendors and stakeholder health. You get a clear-eyed report to the sponsor on where the risks are and what to do about them — whether or not we work together afterwards. The fastest way to find out where you really stand.

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Fractional: 1-2 days a week, monthly retainer
Senior programme leadership alongside your team without the full-time cost. I own the outcome — governance, vendor management, stakeholder alignment, delivery momentum — embedded enough to know the detail, senior enough to hold the room. Three-month initial term.

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Interim: full-time, 3–12 months
When the situation needs someone in the building every day: a replatform at a critical stage, a programme in trouble, a leadership gap mid-transformation. End-to-end ownership from kickoff or rescue through to go-live and handover.

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Not sure which fits? That's what the first call is for.

Who I Work With

I work globally with large brands, retail technology providers and venture capital companies who are looking to deliver complex digital retail programmes and implement change. Typically that means businesses with ambitious growth plans, often with international expansion on the agenda, or large scale technology transformation underway - who need leadership that can operate within and across the full programme lifecycle both strategically and hands on.

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Work With Me

+44 (0) 7498 526 581

Thanks for getting in touch!

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© 2026 Mark A. Ellis

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