Data Analyst

Gain Theory; London; On-site; GBP 30,000 - 45,000; Full time

Job summary

Gain Theory seeks a Data Analyst to join its Data Practice, working with top global brands. The role involves data processing, collaboration with teams, and ensuring data quality through robust QA processes. Ideal candidates will have experience in data handling and project management, with strong communication skills.

Benefits

Flexible by design

Excellent benefits

Growth and development

Culture with Heart

Qualifications

• 1-2+ years experience in relevant fields.
• Experience with data processing tools and robust QA processes.

Responsibilities

• Manage data using SQL and ETL techniques.
• Coordinate with Data Manager and clients for data flow.

Skills

SQL

ETL

Cloud Computing

Data Handling

Project Management

Communication

Education

Computer Science

Data Science

Data Engineering

Business Intelligence

Tools

Snowflake

Python

GIT

Job description

As a Data Analyst, you will be part of the Gain Theory Data Practice and will be embedded in one of Gain Theory’s client-based squads. Working with your manager, you will engage with top brands worldwide, handling data from media, client-specific sources, Gain Theory internal data, sales, and more. You will collaborate with your team to process and organize data for modeling, with opportunities to innovate and automate processes.

The Data Analyst is expected to utilize data processing techniques including SQL and ETL to manage data. They will also use internal data automation tools to ensure effective execution of data pipelines that clean and transform data. Running robust data QA processes is essential, as data quality is vital to our work. Additionally, the Data Analyst will coordinate with the Data Manager and client and agency contacts to ensure a continuous flow of data from relevant sources. The role also involves interaction with the broader data community within Gain Theory, especially with the Data Centre of Excellence (DCOE) to share best practices and support each other.

Our teams integrate cutting-edge data engineering, advanced analytics, unified measurement products, and scalable engineering to develop products that will influence the future of data-informed decision-making. We prioritize consumer privacy, client confidentiality, brand growth, and user experience.

Qualifications

• 1-2+ years experience in Computer Science, Data Science, Data Engineering, Information Science, Business Intelligence, or a related field
• Proficiency with data handling, including working with diverse datasets from multiple sources, and familiarity with data processing tools/concepts like SQL, NoSQL, and ETL; experience with robust QA processes
• Experience within the advertising ecosystem (e.g., ad trafficking, ad servers, DSPs, media strategy and activation) and understanding of relevant metrics and reporting
• Required skills: SQL, ETL, Cloud Computing/Storage (Azure or AWS)
• Nice-to-have skills: Snowflake, Python, GIT
• Experience with DBT is a plus but not essential
• Strong project management skills, including planning, managing timelines and risks, and overseeing multiple projects
• Organized, detail-oriented, QA-focused
• Excellent communication skills—written, verbal, and presentation
• Proficiency in English

Values and Behaviors I Demonstrate

Joining Gain Theory means embodying our core values:

• Be Curious: continuously learning and developing
• Be Positive: approaching work with optimism and making a positive impact
• Act with Consideration: respecting diverse perspectives
• Make it Better: striving for continuous improvement and honesty

Why Work for Us?

Gain Theory is committed to building a diverse, equitable, and inclusive workplace where everyone feels valued and respected. We believe this environment fosters growth and delivers positive outcomes for our people, clients, and communities. As a WPP-owned consultancy, we offer access to extensive data, expertise, and tools to support our innovative solutions.

What We Pride Ourselves On

• Growth and development
• Meaningful work
• Flexible by design
• Excellent benefits
• Culture with Heart

Our team defines Gain Theory, and we seek individuals committed to excellence and continuous improvement.

What We Do

Gain Theory is a global marketing effectiveness and foresight consultancy. Our goal is to accelerate growth for ambitious brands through data-driven investment decisions, supported by proprietary technology and strong partnerships.

As part of WPP, Gain Theory has access to a wide range of data, expertise, and tools, making our offerings unique.

Who We Are

We are a people-centric organization guided by the values of curiosity, positivity, improvement, and consideration. We foster a respectful culture where everyone has equal opportunities for growth.

Gain Theory is an equal opportunity employer, committed to a respectful and inclusive environment.

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