Experience.
London · hargreaves.lj@gmail.com · +44 7854 830702
Freelance
June 2026 – Present
Strategist
Freelance strategist at an influencer gifting agency, owning reasons to believe and consulting on account retention and growth, including developing and commercialising the agency’s measurement offering.
Stagwell
(SmartAssets)
September 2024 – June 2026
AI-native SaaS platform helping brands govern and optimise advertising assets.
Product Lead, Creative Intelligence
September 2025 – June 2026
- Led the strategy and product roadmap for creative intelligence and brand governance solutions.
- Built a predictive creative intelligence system to identify why assets performed across paid, organic and influencer content.
- Translated analysis into strategic recommendations for senior stakeholders, contributing to a 306% increase in ROAS for a global cosmetics brand.
- Led discovery workshops with Lenovo, Volkswagen, P&G and Estée Lauder, translating customer and business needs into product opportunities and requirements.
- Developed a database of psychological and creative principles across advertising platforms, forming the foundation for an asset-scoring algorithm.
Product Owner
September 2024 – September 2025
Tailify
December 2019 – July 2024
Influencer marketing agency powered by behavioural science, with an AI-driven influencer selection tool.
Senior Lead Strategist
September 2021 – September 2024
- Led strategy for the agency’s largest accounts, representing 70% of revenue, and presented annual scaling roadmaps to C-suite stakeholders at brands including NordVPN, Fiverr, Rosetta Stone and Emma Sleep.
- Grew a digital subscription brand’s influencer programme from a £40k campaign into a multi-market annual partnership for three consecutive years, more than doubling spend year on year and making influencer its highest-performing channel for customer lifetime value.
- Managed a team of five strategists, with responsibility for department KPIs, OKRs, performance reviews and development plans.
- Developed quantitative post-campaign analysis and applied behavioural science to explain content performance, working with data scientists and in-house psychologists.
- Represented the agency at Youth Marketing Summit London and industry webinars.
Lead Strategist
October 2020 – September 2021
Strategist
December 2019 – October 2020
Tools & research
Claude, Jira, Confluence, Miro, Google Workspace and PowerPoint.
GlobalWebIndex, YouGov, Nielsen, Fifty, Attest and Canvas8.
Education
September 2016 – June 2019
University of Bristol
BA (Hons) Anthropology · 2:1