Ian Finn FCIM CMkr MIoD
Senior Product Leader | Identity, Platform & AI | B2C Enterprise

I build the products and platforms that millions of people rely on — without ever noticing. Identity, fulfilment, personalisation — at the scale where the stakes are real and the complexity is unforgiving.

Eighteen years across six FTSE100 and three Fortune Global 500 organisations — all multinationals. Author of Product Truths: Five Principles for Building Products That Work at Scale (2026). The through-line: taking the programmes others said couldn't be done and delivering them to a standard nobody thought achievable. Retail technology, government infrastructure, financial services, B2C at scale — the context changes. The outcome doesn't.

Currently: Leading a Group identity platform serving tens of millions of customer accounts across five markets and six Group subsidiaries — spanning authentication, access management, personalisation and fraud signals at consumer scale (at Tesco plc).

Previously: Sky · Barclays · Vodafone · Fidelity International · Department for International Trade · O2 (Telefónica UK) · Capgemini/HMRC · Centrica · BT · Motorola

What I specialise in

Three things that rarely sit in the same person:

Identity & IAM at consumer scale — authentication, access management, fraud signals, and platform architecture serving tens of millions. Billions of API calls monthly. Zero-defect delivery under both exacting regulatory scrutiny as well as under the demanding expectations of hyperscale retail.

M&A integration and separation — experience across both sides of major corporate transactions, at FTSE scale. The £700m Tesco Bank divestiture. The first-ever Group identity integration across Tesco and its enduring financial services subsidiary (Tesco Insurance & Money Services). Fixed horizons, complex legacy, multiple parties.

Platform transformation and turnaround — five separate first-of-kind or turnaround proof points across government, banking, telecoms, and retail. Programmes that had stalled for years, delivered in months — a recurring pattern.

Selected proof points

·       Led the identity platform separation enabling the £700m Tesco Bank divestiture — on time, zero incidents, Christmas peak delivery

·       Delivered the first-ever Group identity integration — 2 million customers migrated, 60% adoption in five months, held up as a Group exemplar

·       Scaled online fulfilment from 800k to 1.4 million weekly orders during the pandemic — underpinning £2.3bn of incremental online sales

·       Turned around the UK Government's Data Hub CRM in four months — now recording 4 million+ cumulative business interactions, seven years on

·       Led identity and Clubcard integration across Central Europe (three markets) — 674 stores, millions of customers, two previous failed attempts before this programme

Annual Report citations across six organisations — Tesco (2022, 2025), HMRC (2017–18), Sky (2012), Centrica (2012), BT (2016).

Speaking

·       Keynote Speaker — Customer Experience in Financial Services · London · June 2026

·       Speaker — Cyber Roundtable · 2026

·       Keynote Speaker — Tesco Ignite Global Technology Conference · 5,000 colleagues live

Writing

Author of Product Truths: Five Principles for Building Products That Work at Scale (2026) — available at all leading digital bookstores: books2read.com/producttruths
Ongoing writing on product, platform, and AI at scale — Product at Scale, productatscale.substack.com

Credentials
Fellow of the Chartered Institute of Marketing (FCIM) · Chartered Marketer (CMkr) · Member of the Institute of Directors (MIoD) · Advanced Certified Scrum Product Owner (A-CSPO) · Agile PM Practitioner · BA (Hons) University of Warwick

Awards

·       Media Week Awards — Gold, Best Large Collaboration (over £750k): Tesco Brand sponsorship and activation of ITV's Britain's Got Talent, 2025

·       Retail Technology Innovation Hub Awards 2025 — Best Data Analytics Driven Retail Initiative: Tesco and LiveRamp

·       Retail Technology Innovation Hub Awards 2025 — Overall Winner: Tesco and LiveRamp

·       uSwitch Awards (2012) — Best Broadband & Home Phone: O2

·       Broadband Genie (2011) — Best Broadband Provider: O2

·       Computer Shopper & Expert Reviews (2011) — Best Buy, Broadband Survey: O2

Find me

·       LinkedIn: linkedin.com/in/ianfinn

·       Substack: productatscale.substack.com

·       GitHub: github.com/ianjfinn

·       Carrd: ianfinn.carrd.co

·       YouTube: youtube.com/@ianfinn324

Contact
Please use my contact form on this site.