Data Scientist

DEPT®; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

DEPT® is seeking an experienced Data Scientist to design and deliver data-driven solutions across client challenges, focusing on media effectiveness. You will work with data scientists and AI engineers to build predictive models, personalise insights, and deploy end-to-end AI systems across cloud platforms.

You will translate model outputs into actionable recommendations for senior marketing leaders and guide clients on data science implementations, contributing your statistical and ML expertise

Qualifications

• MSc degree in a highly analytical and quantitative discipline such as Econometrics, Data Science, Applied Mathematics or Statistics.
• Hands-on experience building data science solutions for media effectiveness, including Media Mix Modelling, incrementality studies and multi-touchpoint attribution.
• Solid understanding of marketing strategy, media channels and customer journeys with ability to translate media investments into business impact.

Responsibilities

• Design data-driven solutions using advanced analytical methods, ML models and AI technologies to deliver business value.
• Lead media effectiveness projects, including Media Mix Models, incrementality studies and multi-touchpoint attribution.
• Build end-to-end scalable ML/AI systems with model training, inference, deployment and monitoring on cloud platforms.
• Lead multidisciplinary teams of engineers, consultants and stakeholders.
• Communicate complex technical solutions clearly to clients and provide progress updates.

Skills

Python

SQL

Data science

Machine Learning

MLOps

Docker

Git

Cloud AWS

Azure

GCP

Bayesian modelling

Causal inference

Pandas

NumPy

SciPy

Communication

Education

MSc in Econometrics/Data Science

Tools

Snowflake

BigQuery

Redshift

Docker

Git

Job description

DEPT®/AI has a single mission: to make the best work in the industry using AI to enhance everything we do. This role sits within our EMEA Data & AI practice, which has deep expertise in leveraging AI. The team includes data scientists and AI engineers that work alongside DEPT® teams around the world across different services – from commerce, to full-funnel media, content engineering to internal operations. You will be solving some of the hardest and most challenging problems facing some of the best loved brands in the world – and doing this alongside an experienced team.

Job Purpose

We are seeking a talented and passionate Data Scientist to join our growing team of data scientists and AI engineers. You will design and deliver data-driven solutions across the full range of client challenges we take on: from predictive modelling and personalisation to end-to-end AI systems. Your focus area is media effectiveness and you will advise clients how to allocate their media budgets with your expertise in Media Mix Modelling, Incrementality and Attribution. Alongside this, you will operate as a full member of the team, contributing your statistical and ML expertise across other client workstreams.

Key Responsibilities

• Design data-driven solutions tailored to client challenges, leveraging advanced analytical methods, ML models, and AI technologies to deliver business value.
• Lead media effectiveness projects for our clients - designing, building and interpreting Media Mix Models, incrementality studies, and multi-touchpoint attribution solutions that inform client budget allocation and marketing strategy.
• Implement end-to-end scalable ML & AI systems - including model training, inferencing, deployment, and monitoring - leveraging latest cloud technologies.
• Take a leading role in a multidisciplinary team consisting of engineers, consultants and client stakeholders.
• Communicate complex technical solutions to clients in an understandable way, delivering progress reports and demonstrations.
• Translate complex model outputs into clear, actionable recommendations for client stakeholders, including senior marketing leadership.
• Consult and guide clients on data science implementation, serving as a trusted advisor on data-driven decision making

What We Are Looking For

• MSc degree in a highly analytical and quantitative discipline like Econometrics, Data Science, Applied Mathematics or Statistics.
• Hands-on experience building as a data scientist building media effectiveness solutions, including Media Mix Modelling, incrementality studies and multi-touchpoint attribution solutions.
• Solid understanding of marketing strategy, media channels, customer journeys, and how to translate media investments into business impact
• A strong foundation in traditional statistical methods (e.g. regression, time series, probabilistic models), combined with a proactive mindset for exploring and applying cutting-edge developments in ML and AI.
• Deep understanding of Bayesian modelling and causal inference, and the ability to apply these in a client-facing measurement context.
• Proficiency in Python with extensive experience in data science libraries (e.g. scikit-learn, pandas, NumPy, SciPy)
• Strong SQL skills and experience with data warehousing solutions (Snowflake, BigQuery, Redshift)
• Understanding of MLOps concepts and hands‑on experience implementing them on cloud platforms (AWS, Azure, GCP).
• Experience with version control (Git) and deployment tools (Docker).
• Excellent analytical thinking and problem-solving abilities
• Strong communication skills with the ability to explain technical concepts and translate complex model output into actionable insights to a non-technical audience

WHO ARE WE?

We are pioneers at heart. What does that mean? We are always looking forward, thinking of what we can create tomorrow that does not exist today. We were born digital and we are a new model of agency, with a deep skillset in tech and marketing. That’s why we hire curious, self-driven, talented people who never stop innovating.

Our culture is big enough to cope and small enough to care. Meaning, that with people across 30+ countries, we’re big enough to provide you with the best tools, global opportunities, and benefits that help you thrive. While acting small by investing in you, your growth, your team, and giving you the autonomy to solve our clients problems, no matter where you are in the world.

DIVERSITY, EQUITY & INCLUSION

At DEPT®, we take pride in creating an inclusive workplace where everyone has an equal opportunity to thrive. We actively seek to recruit, develop, nurture, and retain talented individuals from diverse backgrounds, with varying skills and perspectives.

We also encourage you to reach out to us and discuss any reasonable adjustments we can make to support you throughout the recruitment process and your time with us.

Want to know more about our dedication to diversity, equity, and inclusion? Check out our efforts here.