Marketing Data Scientist

ROLE OVERVIEW

Croud is a global, full service digital marketing agency with a unique business model that helps businesses drive sustainable growth in the new world of marketing. Croud was recently named a Sunday Times Best Place to Work for the second year in a row, and was named Performance Marketing Employer of the Year by PMW.

At Croud, we unlock potential by elevating our people, clients, and communities within a rapidly advancing and complex economy. We operate as a unique scaled network of Intelligent, Creative Specialists, enabling us to deliver superior brand outcomes and unlock potential for our people, our clients and our communities.

Our culture is strategically driven and inspired by a shared long-term vision. It is collaborative and connected, with a focus on continuous learning and mutual support.

We are energised by future thinking, driving innovation to achieve better outcomes. We are instinctively generous, actively including and empowering our people. Above all, we are purpose-driven, committed to positively impacting our people, the planet, and our global communities.

Our Global Analytics department, led by Chief Data Officer Rick Stallings and Dr. Gabriel Hughes, Global Director of Advanced Analytics, consists of around 50 experts specialising in Strategic and Advanced Analytics consulting. We provide world-class solutions such as Media Mix Modeling (MMM), first-party ML Attribution, and Incrementality Experiments.

As a Marketing Data Scientist, you will collaborate with Croud’s largest clients to implement and refine proprietary analytics solutions - such as our ML-based attribution platform, AttributionGeni - to maximise the impact of their marketing data. This role involves working closely with both clients and internal cross-functional teams to develop and execute data-driven marketing strategies.

This is a great opportunity to develop expertise in marketing data science while working on high-impact projects alongside industry-leading experts. If you’re passionate about leveraging data science to drive marketing success, we’d love to hear from you.

RESPONSIBILITIES

• Enhance and implement marketing measurement models, including MediaGeni MMM and AttributionGeni MTA.
• Apply predictive modelling techniques to client data, focusing on marketing, website interactions, and online conversions.
• Improve and refine existing methodologies, including first-party ML models for click attribution, cookieless econometric approaches for impression modelling, and campaign-level ROI recommendations.
• Collaborate with internal teams to develop scalable marketing analytics solutions.
• Communicate complex marketing data science concepts clearly to both technical and non-technical stakeholders.
• Interface with clients to ensure the availability and accuracy of marketing data inputs.
• Conduct marketing data exploration, model estimation, and validation.
• Develop insightful visualisations, metrics, and reports for data-driven decision-making.
• Write clean, efficient, and well-documented code using Python, SQL, and related tools.
• Engage with both technical and commercial teams to optimise marketing measurement strategies.
• Work with data engineers to ensure scalable deployment of algorithms.
• Understand and apply methodologies across MMM, MTA, and incrementality testing to support client objectives.

PERSON  SPECIFICATION

You are a highly analytical individual with a strong foundation in marketing data science and a passion for problem-solving. You thrive in a fast-growing company, enjoy working directly with clients, and seek continuous learning opportunities. You possess both the technical expertise and the communication skills necessary to translate complex analytical insights into actionable strategies.

Required Skills and Experience:

• Advanced quantitative degree (Master’s or PhD) in a relevant field or extensive experience in data science/machine learning.
• Proven experience in applied machine learning for marketing in a professional setting.
• Proficiency in Python and related ML libraries.
• Strong statistical knowledge and understanding of marketing measurement methodologies.
• Familiarity with MMM, MTA, incrementality testing, and propensity modelling.
• Experience with Google Analytics, marketing platforms, and digital marketing concepts.
• Ability to communicate complex marketing data science insights effectively.
• Strong client service skills, including managing expectations and translating data insights for business stakeholders.
• Excellent time management and ability to work autonomously.

Preferred Skills:

• Deep understanding of digital marketing and optimisation strategies.
• Experience deploying marketing ML models in cloud environments.
• Knowledge of econometric modelling (MMM).
• Experience with both click and impression attribution models.
• Familiarity with the trifecta of marketing measurement methods (MMM, MTA, and Uplift Experiments).
• Experience working with advertising platform APIs and analytics tools.

COMPANY BENEFITS

Croud operates a hybrid working model with a minimum of 3 days a week based in our London office and the remaining days from home if you wish.

Croud offers a clear path to progression for all members of staff. We are committed to offering development opportunities alongside a support system of regular performance reviews. The opportunities are endless!

On completion of the three-month probation period, every employee is eligible for the benefits listed on our careers site which include:

• 25 days holiday per year with the option to purchase an additional 5 day
• Discretionary annual performance based incentive
• Sabbatical: Paid sabbatical at 7 years with an option to take it unpaid at 5 years
• Recruitment Referral Bonus
• Sale Commission
• Health & Wellbeing Contribution
• Ride to Work Scheme
• Railcard & Season Ticket Loan
• Home Office Equipment (chair and screen)
• Office Perks: Free fruit, breakfast cereals, lunches twice a week, snacks, and tea/coffee
• Enhanced Family Leave: Including primary and secondary family leave, extended parental leave, and shared family leave.
• Life Assurance & Income Protection
• Medical Cash Plan
• Pension
• Learning & Development: Access to Croud Campus, curated third-party learning platforms, and an IPA Membership with subsidised training and events
• Peer Recognition: Through our “Bonusly” program
• Team Off-Sites & Social Events
• Year-round Holiday Celebrations
• Flexible Working Options
• A Day to Make a Difference

Standard hours are from 9.00am to 5.30pm, there’s flexibility if agreed in advance with your line managers (it may also be necessary on occasions to work outside of these hours).

Croud is an equal opportunity employer and does not discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. All candidates will be assessed based on merit, qualifications and their ability to perform the requirements of the role.

OUR VALUES

At Croud, our vision centres around the idea of unlocking potential. We do this by elevating everyone in an inclusive and progressive culture, empowering individuals to deliver their best work. This means we build better brand outcomes, and unlock potential for our people, our clients and our communities.

We live and breathe five core values that foster a culture where everyone can thrive. Our commitment to elevating each other is fundamental to both our cultural and business success. The ideal candidate will excel in and demonstrate the following:

• In it together - our value on integration, collaboration and outcomes
• Eye on the future - our value on futurism, creativity and passion
• Generous in spirit - our value on people, development and inclusion
• Do what you say - our value on integrity and accountability
• Make a difference - More than a value, this is our guiding principle. It ensures we grow the right way, broadens our impact beyond Croud, and strengthens our purpose