ph3Responsibilities /h3 ul liOwn experiments end-to-end. From scoping the hypothesis and picking the right measurement, to running the analysis, to writing up and socializing the result — including harder cross-channel and retargeting tests where the measurement isn't obvious. /li liAdvance our measurement framework. Lead incrementality work, stratified holdouts, and attribution‑calibration refinement, and help figure out what comes next when our holdout strategy hits its limits. /li liScale how we test. Raise the bar on experimental design, sample‑size rigor, and our testing cadence across marketing functions. /li liWrite SQL against large event‑based datasets and pressure‑test analytical approaches across the team. /li liRoot‑cause the metrics, connecting experiment results to demand‑and supply‑side dynamics in a two‑sided marketplace, and bring a clear narrative to decision‑makers.



/li /ul h3Requirements /h3 ul li3+ years using data to drive business impact, including partnering cross‑functionally to act on findings. /li liStrong SQL, including complex queries on large datasets and reviewing others' code. /li liSolid statistical grounding with Python or R — hypothesis testing, regression, sample size — and a feel for the trade‑offs between measurement approaches. /li liProven experience owning A/B testing end‑to‑end: design, sample size, analysis, and write‑up. /li liGenuine curiosity about measurement problems and comfort sitting with ambiguity while you work them out. /li liA clear communicator who makes complex analysis land with technical and non‑technical audiences. /li /ul /p #J-18808-Ljbffr

📌 Senior Experimentation Analyst (Barcelona)
🏢 Jobtailor
📍 Barcelona