Data you can trust.
Decisions you can make.

I help brands and agencies stop guessing and start knowing. From getting your tracking right to building dashboards that actually mean something. I turn messy data into decisions you can act on.

No BS No beating around the bush I tell you how it is, it's a French thing
15+
Years in eCommerce & digital strategy
5+
Years in tracking & analytics
Dad jokes

Their words, not mine.

I've worked with Viv for over five years in different capacities and now regularly rely on him in my own business. I trust him completely when it comes to tracking and analytics. He’s genuine, highly capable, and always delivers exactly what he commits to. When Viv is involved, I know the work will be handled quickly, properly, and fairly. I wouldn’t hesitate to recommend him.

Mylene Chevrier
Mylene Chevrier
Digital Marketing Strategist & Consultant, Studio M

I worked with Viv on a checkout upgrade and GA4 data reconciliation project, and I would not hesitate to recommend him.

Viv delivered everything on time, under budget, and with more depth than originally scoped, which is rare in any business. He is highly knowledgeable, clear in his thinking, and incredibly responsive. Most importantly, he made a complex project feel manageable for a small, busy team, adapting his approach to how we actually work rather than forcing a rigid process.

If you are looking for someone who genuinely understands ecommerce data, can translate it into practical outcomes, and delivers exactly what he commits to, Viv is a standout.

Livia Pizzichini
Livia Pizzichini
Head of Ecommerce & Customer Success, Secrets by Amaar

Vivien brings not just data quality and accuracy, but also the ability to tell a compelling story with it. This was especially valuable in our work together, helping clients connect Viv's quantitative work with my qualitative findings. It's not always easy to surface the 'so what' from deep data work, but Viv consistently did so with skill and empathy which clients naturally appreciated.

Andrea Gonzalez
Andrea Gonzalez
Director of eCommerce User Experience, Overdose Digital, Americas

From raw data
to real decisions.

Because "the data looks fine" isn't good enough. Every service I offer is designed to move you from messy, unreliable data to clear, confident decisions.

Tracking Setup & Audits

Get your full tracking stack configured properly from the start, or audit what's already there, find what's broken and fix it for good.

Server-Side Tracking

Future-proof your data collection with server-side setups that survive ad blockers, browser restrictions and cookie changes.

Consent Management

Privacy-compliant tracking setups that meet GDPR and local requirements without sacrificing the data quality you need.

Looker Studio Dashboards

Dashboards that actually tell a story, not just numbers on a screen. Built to help you understand what's working and why.

Dev Collaboration & Tech Specs

I bridge the gap between marketing and engineering. I scope, write and validate dataLayer specs so developers have everything they need to implement tracking right, first time.

CRO Strategy & Measurement

I support CRO teams with test planning, measurement frameworks, and reporting so every experiment is set up to produce results you can actually trust and act on.

Viv

Hi, I'm Viv.
I make data make sense.

I'm Viv, a French-born eCommerce and analytics consultant with 15+ years of experience on both sides of the table (client and agency). I grew up in France, spent five years in the Philippines, and have called New Zealand home since 2014.

While I remain a well-rounded eCommerce generalist, my focus lies in data and analytics. Over the past several years I've specialised in solving complex tracking challenges and turning data into actionable insights that drive growth.

I bring both strategic thinking and hands-on execution, and yes, the French directness is very much included. The questionable sense of humour is free too. You can't opt out. 😄

GA4 Google Tag Manager Looker Studio Server-Side Tracking Meta Ads Consent Management eCommerce Strategy Shopify Data-Driven Marketing
Vivien Oesterle

Let's make your data work.

Got a tracking nightmare? A dashboard that tells you nothing? Or just not sure where to start? Drop me a message and I'll get back to you shortly.

Usually responds within 24 hours
Based in New Zealand, working globally 🌏