Vysta Paid Media Group
Website:
growwithvysta.com
Job details:
Vysta PMG manages over 200 million dollars in annual Google and YouTube ad spend across 150 plus ecommerce brands. We are hiring a Head of Measurement to own the measurement stack that proves what our spend is actually driving.
Most ecommerce brands do not trust the ROAS their ad platforms report, and they are right not to. Last-click attribution overstates what paid is contributing, platform models double-count across channels, and the number on the dashboard rarely matches the number on the P&L. We are building the proof layer underneath all of it: geo-based incrementality testing, conversion lift studies, and Media Mix Models that reconcile Google with Meta, TikTok, and the rest of the funnel.
This is a leadership role, not an individual-contributor research seat. The person in this role owns measurement as a discipline at Vysta, sets the methodology the agency runs on, and builds the system that lets that methodology scale across the portfolio without them being in every conversation.
Why This Role Exists
Cross-account data from 150 plus ecommerce brands is something no in-house team and no point-solution vendor can replicate. The frameworks built in this role get applied to over 200 million dollars in active spend, and the work ships directly into client conversations. This is not a research role parked in a notebook. It is the capability that lets Vysta prove incremental impact at a level the client cannot reproduce internally, which is the core of how the agency differentiates and retains its largest accounts.
What You Will Own
Design and run geo holdout incrementality tests across top-spending client accounts.
Stand up the MMM pipeline, white-labeled on Measured initially, then proprietary on Google Meridian for S-tier accounts spending 500K plus per month.
Translate model output into client-facing proof of incremental impact, working alongside senior media buyers and account leads.
Partner with the engineering team on the data infrastructure that feeds the models, including BigQuery and dbt.
Build the test design playbook that scales across 150 plus accounts without requiring you in every conversation.
Own measurement methodology as a discipline: set the standards, the test design defaults, and the quality bar the agency operates to.
What We Are Looking For
Ecommerce focus is required. Demonstrated experience measuring incrementality and media mix for ecommerce brands specifically, not only lead-gen, B2B, or app-install contexts.
4 plus years running incrementality and or MMM in production at an agency, brand, or measurement platform.
Strong Bayesian fundamentals, with hands-on experience with Meridian, Robyn, PyMC, or a homegrown framework.
Strong Python, SQL, and BigQuery.
Working knowledge of the Google Ads and Meta ecosystems.
Ability to explain causal inference to a media buyer or client in plain English. This is a hard requirement, not a soft skill. The output of this role only has value if a non-technical client understands and trusts it.
Strong Signals (Not Required, But Move a Candidate to the Top)
Has built a measurement function from scratch rather than only operating one that already existed.
Has worked across many accounts simultaneously and understands the leverage of cross-account pattern data.
Has presented incrementality findings directly to client executives and handled pushback on uncomfortable results.
Why This Role Is Different
The work is applied, visible, and consequential. The frameworks built here run against the full 200 million dollars plus in active spend, ship directly into client conversations, and become the basis on which Vysta retains its largest ecommerce brands. The cross-account data scale is something a client could never assemble internally and no point vendor can match. This role is the owner of that advantage, not a contributor to someone else's roadmap.
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