Marketing Data Scientist

ElevenLabs; Greater London; Hybrid; GBP 70,000 - 120,000; Full time

Benefits offered by this job

Innovative culture

Growth opportunities

Learning stipend

Social travel

Annual offsite

Co-working stipend

Job summary

ElevenLabs, a leading AI research and product company, is hiring a Data Scientist to optimize offline marketing measurement across OOH, sponsorships, and experiential campaigns. You will build frameworks to assess effectiveness where clicks are absent, collaborating with Marketing and Growth Data.

You'll design geo holdout tests, market-level experiments, and integrate offline spend with digital signals to present a cohesive view of marketing ROI.

Qualifications

• Experience measuring marketing effectiveness, including offline channels (OOH, TV, sponsorship, events).
• Strong SQL and Python capabilities.
• Ability to design measurement without clean signal and communicate uncertainty.

Responsibilities

• Design and run measurement for offline campaigns (geo holdout tests, matched-market tests, MMM, incrementality).
• Partner with Marketing leadership to select channels and size bets.
• Build models combining offline spend with digital signals for unified marketing insight.
• Collaborate with Growth Data team to align offline and online measurement.

Skills

SQL

Python

Causal inference

Media mix modelling

Incrementality testing

Stakeholder management

Tools

Robyn

Recast

LightweightMMM

Job description

About ElevenLabs

ElevenLabs is an AI research and product company transforming how we interact with technology.

We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $22B - multiples of 11, always.
We have expanded from voice into three main platforms:

• ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale.

• ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages.

• ElevenAPI gives developers access to our leading AI audio foundational models.

Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex‑founders. If you want to work hard and create lasting positive impact, we want to hear from you.

How we work

• High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy.

• Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you.

• AI first: We use AI to move faster with higher‑quality results. We do this across the whole company—from engineering to growth to operations.

• Excellence everywhere: Everything we do should match the quality of our AI models.

• Global team: We prioritize your talent, not your location.

What we offer

• Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible.

• Growth paths: Joining ElevenLabs means joining a dynamic team with countless opportunities to drive impact - beyond your immediate role and responsibilities.

• Learning & development: ElevenLabs proactively supports professional development through an annual discretionary stipend.

• Social travel: We also provide an annual discretionary stipend to meet up with colleagues each year, however you choose.

• Annual company offsite: Each year, we bring the entire team together in a new location - past offsites have included Croatia and Italy.

• Co‑working: If you’re not located near one of our main hubs, we offer a monthly co‑working stipend.

About the role

We're looking for a Data Scientist to support ElevenLabs' offline media and strategic marketing bets: from OOH billboards to niche sponsorships and experimental brand campaigns. You'll build the frameworks that tell us whether a channel with no click to track is actually working, partnering closely with Marketing and the Growth Data team.

• Design and run measurement for offline / out-of‑home campaigns: geo holdout tests, matched‑market tests, media mix modelling and incrementality studies.

• Partner directly with Marketing leadership on which niche channels, markets or formats to test next, and size the bet.

• Build models that combine offline spend data with digital and product signals into one coherent view of marketing effectiveness.

• Work alongside the Growth Data team's digital marketing data scientists to keep offline and online measurement consistent.

Requirements

Demonstrated experience measuring marketing effectiveness, ideally including offline, brand or hard‑to‑track channels (OOH, TV, podcast, sponsorship, events).

• Strong SQL and Python, with experience in causal inference, media mix modelling or incrementality testing.

• Comfort designing measurement without a clean click‑level signal, and communicating uncertainty honestly.

• Strong stakeholder management with Marketing / Brand leadership, able to turn a strategic question into a testable plan.

• Structured thinker comfortable with ambiguity: this is a newer, less‑defined function.

Bonus:

• Experience specifically with OOH, billboard or experiential campaign measurement.

• Experience with media mix modelling tools or frameworks (Robyn, Recast, LightweightMMM or similar).

• Experience partnering with brand or creative teams on niche or unconventional marketing bets.

Location

This role is remote‑first, so it can be executed from anywhere in Europe or the US East Coast, with the ability to operate in CET / ET timezones required. If you prefer, you can work from our offices in London, Warsaw, Dublin or New York.

#LI-remote

We are an equal opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or other legally protected statuses.