Performance marketer.
Systems thinker.
AI-enabled operator.

I’m a senior performance marketing specialist with 11 years’ experience across paid search, paid social, app growth and SEO. I’ve managed £50M+ in annual media spend across 8 international markets, building acquisition programmes across Google Ads, Meta, Microsoft Ads, LinkedIn and Apple Search Ads. My work sits between strategy and execution: campaign architecture, tracking, bidding, reporting and AI-powered workflows that help teams turn performance data into clearer commercial decisions.

Lewis Phillips — Senior Performance Marketing Specialist
£50M+
Annual paid media managed
11 yrs
Performance marketing experience
8 yrs
International growth experience
5+
Channels run at scale
Selected Work

Selected work from destination experiences, marketplace, ecommerce and lead-generation.

Go City
Performance Marketing Manager · Global · 2026–Present

Managing paid acquisition for Go City, one of the world's leading destination experience brands. The core challenge is growing bookings across global markets while making campaigns feel genuinely local — connecting travellers at the point of intent through Web and App, with the right message in the right market at the right moment. Work spans campaign architecture, bidding strategy, measurement and cross-channel localisation.

Global
Multi-market campaigns
Web + App
Cross-channel acquisition
Current
Role
Angi Inc.
Performance Marketing Manager · 8 markets · 2020–2026

Led paid media across MyBuilder UK, HomeStars Canada, Werkspot NL and Instapro US. Designed scalable bidding architecture across paid search, paid social and display, drove a structured experimentation programme and led EU performance marketing teams through quarterly growth and optimisation cycles.

"Lewis was on my team for four-plus years, leading performance delivery for paid search, paid social and display. Without him, MyBuilder wouldn't be where it is today."

Vladimir Musaev — Director of Performance Marketing, Instapro Group
8
International markets
4
Marketplace brands
6+
Years sustained delivery
Lee Renée Jewellery
Digital Marketing Consultant · 2022–Present

Built the Shopify, Google Ads and SEO foundations from zero, then scaled acquisition across Search, Shopping, Performance Max and organic search. Improved revenue efficiency, grew non-brand visibility and helped turn paid and organic activity into a more reliable ecommerce growth engine.

"Very committed, hard working, results-focused, insightful and goes the extra mile. He treated the business as his own."

Lee Preston — Founder & CEO, Lee Renée Jewellery
5×
ROAS in 2025
9×
Peak monthly ROAS
+49%
YoY revenue growth
Engine House Bexley
Google Ads & Tracking · 2024–Present

Rebuilt the Google Ads and tracking setup from the ground up, moving the account from unclear attribution and fragmented journeys to cleaner conversion tracking, tighter intent groups and a more reliable B2B lead-generation structure.

"He never just 'did the work' — he explained what he was changing, why it mattered and the impact it would have."

Lewie Winters — Digital Strategy & Transformation Manager
4 wks
Broken setup to clean tracking
Full
Attribution stack rebuilt from zero
2
Domains unified under one journey
Clients & brands worked with
Selected Analysis

The thinking behind the numbers.

Five projects showing methodology, not just outcomes.

~16% margin improvement
Geo-Bucketing Bid Model
tCPA Modelling · Location Value · B2C Acquisition

Replaced flat national CPA targets with location-based bidding tiers built from demand, conversion rate and margin data. Allowed high-value areas to be pushed more aggressively while lower-value areas were managed conservatively. Delivered 12% cost reduction, ~16% margin improvement and 19% growth in high-value location conversions.

+25% impression-to-conversion rate
RSA Headline Theme Analysis
Creative Testing · Z-Test · Multi-Market

Built a 1,300-row RSA headline library grouped by message type. Used Z-test validation to separate headlines that drove clicks from those that drove conversions, then applied learnings across multiple European markets.

+26% incremental conversion rate
AI Max Incremental Evaluation
Incrementality Testing · 4 Markets · Budget Allocation

Built a framework to measure AI Max's true contribution beyond Google's blended reporting. Found most AI Max volume was already covered by existing keywords — only a fraction was genuinely incremental. Used to determine where to scale aggressively and where to limit spend.

~30% CPA reduction YoY
Weighted Funnel tROAS Model
B2B Lead Gen · Funnel Modelling · Value-Based Bidding

Built a weighted multi-stage B2B funnel assigning value to each stage based on downstream conversion contribution. Segmented into high / medium / low value portfolios with separate tROAS strategies. Shifted optimisation from raw lead volume to qualified behaviour — ~30% CPA reduction alongside ~20% YoY volume growth.

≈75% cost per install reduction
Apple Search Ads Rebuild
App Growth · Search Intent · Keyword Promotion

Rebuilt around clear intent segments: brand, competitor, discovery and high-intent exact match. Created a keyword promotion workflow moving proven terms from broad discovery into exact match.

Guides

Free guides for paid search practitioners.

All guides →
Range

Marketer who ships code.

The combination is rare. I don't wait on a dev queue to instrument tracking, prototype a tool, or write the workflow that turns a CSV into a decision.

I run paid media

Across channels, markets and funnels.

  • -Google Ads — Search, Shopping, PMax, YouTube, Demand Gen
  • -Meta, LinkedIn and Microsoft Ads
  • -Apple Search Ads, Verizon/Yahoo and affiliate channels
  • -tCPA / tROAS bidding, conversion-value modelling
  • -Geo-bucketed bid models built on demand, margin and conversion data
  • -B2B lead gen and B2C eCommerce, 8 markets
I build the systems

Tracking, automation, AI workflows.

  • -GTM container architecture, GA4, Consent Mode v2
  • -Enhanced Conversions, cross-domain tracking
  • -Claude Code workflows for audits, reports and feed checks
  • -Persistent knowledge base — each audit informs the next
  • -Obsidian → Monday.com pipeline for action follow-through
  • -Working tools shipped end-to-end (see above)
Things I've built

Three live tools, built and shipped. Try any of them.

Each tool encodes a real audit methodology I use on accounts. Claude Code workflows on the backend; Google Ads API, GA4 and Merchant Center on the inputs. Read-only, free, and a fair preview of how I think about paid media.

Source is on GitHub — read the code, run it yourself, fork it.
View on GitHub →
Get in touch

Open to senior roles. Select consulting.

Looking for senior performance marketing, growth or paid acquisition roles, either in-house or agency. Open to selected consulting alongside.