Full-Time
Senior Data Manager
Posted on 8/7/2025
Gain Theory
201-500 employees
Global marketing analytics and optimization consultancy
No salary listed
London, UK
In Person
 Data & Analytics (1) |
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- Background (6-8 years+) in Marketing, Statistics, Computer Science, Information Science, Engineering, or related quantitative field.
- In-depth experience with all things data including the ability to work with a variety of datasets from multiple sources, familiarity with standard data processing tools/concepts (e.g. SQL, ETL), and experience driving robust QA processes.
- Can lead requirements gathering, project planning, and implementation for both cross-functional internal data initiatives as well as client-side data projects.
- Has project management skills including planning tasks and deliverables, managing timelines and risks, managing team resource allocation, and overseeing multiple simultaneous projects.
- Ability to manage and motivate Gain Theory team members.
- Organized, detail-oriented, QA-focused.
- Excellent written, verbal, and presentation skills.
- Accountable for designing, delivering, and maintaining all aspects of the data management process for any assigned clients.
- Direct oversight of, management of, and full accountability for work delivered by all junior data resources (some may be in other global offices/time zones) for any assigned clients.
- Balancing getting the data perfect or in very good modeling shape versus the demands of the clients around what is required.
- Identifying, building, and automating data collection solutions for various data sources including ad servers, social networks, DSPs, search engines, etc.
- Building relationships and owning communications with key data owners and contacts to ensure timely delivery of accurate, clean data.
- Project management of all data activities for assigned clients including managing timelines, identifying/mitigating known risks, communicating impact to downstream dependencies, etc.
- Regularly meet with client leads and line manager to coordinate account planning and client project initiatives. This includes providing resource estimates and expected timing to ensure proper staffing.
- Support the data lead for all assigned clients providing key information for all internal and/or cross-client initiatives as needed.
- Train and support the use of new data techniques, best practices, and tools standardized by the Data Center of Excellence.
- Familiarity with DBT is highly valued.
- Media agency experience will be highly valued.
- Experience/familiarity with Multi-Touch Attributions solutions and/or Market Mix Modeling will be highly valued.
- Experience with key reporting solutions such as Tableau / Power BI will be highly valued.
Gain Theory is a global marketing effectiveness and foresight consultancy that helps brands grow by making smarter, data-informed marketing investments. It uses data, advanced analytics, and technology to combine past performance, current insights, and future scenarios. Five pillars guide its work: a Marketing Effectiveness Index to identify barriers and opportunities, data excellence, sources of growth, levers of growth (including MMM, attribution, unified measurement, and test-and-learn), and foresight to plan for possible futures. The firm differentiates itself through its global reach in 58 markets, specialized industry knowledge, and recognition by Forrester, with the goal of turning data into quick, actionable investment decisions that accelerate growth.
Company Size
201-500
Company Stage
N/A
Total Funding
N/A
Headquarters
New York City, New York
Founded
2015
Simplify's Take
What believers are saying
- 47% US marketers plan MMM investments next year per EMARKETER.
- ANA partnership grants exclusive CMO access to data initiatives.
- WPP integrations with Choreograph, BAV, Kantar build measurement moat.
What critics are saying
- Open-source MMM tools commoditize capabilities, erode pricing in 12 months.
- WPP divisions create channel conflicts, trigger client hesitation now.
- AI-native rivals like Google capture share with lower costs in 18 months.
What makes Gain Theory unique
- Gain Theory fuses 50 years of expertise with AI for marketing effectiveness.
- Provides MMM beyond media, measuring creative, pricing, macro factors.
- Embeds forecasting, scenario planning for proactive 2026 optimization.
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Benefits
Health Insurance
Life Insurance
Hybrid Work Options
Paid Vacation
Mental Health Support
Generous Pension Plan
Company News
Gain Theory unveils five essential strategies to navigate the crowded MMM landscape in 2026. November 11, 2025. Gain Theory today released a new guide, Making MMM Fit for 2026: An Essential Guide for Marketers, providing guidance on navigating the rapidly evolving marketing mix modeling (MMM) ecosystem and maximizing marketing effectiveness in an increasingly volatile landscape. The comprehensive guide addresses the surge in MMM adoption, with nearly half (47%) of US marketers planning to invest in MMM over the next year, according to EMARKETER data cited in the guide. It comes as marketers face mounting pressure to demonstrate the value and impact of marketing against business objectives and defend budgets amid economic volatility. The report also warns that a surge of new entrants in the MMM ecosystem, from SaaS platforms and open-source tools to technologies that complement existing solutions, is making it challenging for marketers to discern meaningful differences among providers. "In an increasingly crowded MMM ecosystem, marketers need clarity on how to extract maximum value from their measurement investments. Speed and sophistication should not be seen as a trade-off - the best MMMs deliver both through a combination of technology and expertise. If your MMM can only tell you where you've been, you're flying blind into 2026. This guide provides the roadmap for making MMM a true business growth engine" Sam Fellows Managing Partner, Gain Theory The guide provides five recommendations for marketers to maximize value potential from their MMM programs and build confidence in marketing impact in 2026. These include: * Balance speed with adaptability and actionability: Technology is pushing boundaries in cost and speed, but an overfocus on reporting frequency can come at the expense of generating actionable insights that drive real business value. * Prove long-term value, not just short-term ROI: IPA Databank Research indicates that while marketing ROI has increased by 4% since the COVID pandemic, net profit has decreased by 11%. Overly focusing on ROI reinforces the view that marketing is a cost that can be cut, risking untapped incremental sales. * Go beyond media-only measurement: MMM is most often used to understand how media has impacted sales. But it can also measure non-media drivers such as creative, sponsorships, pricing and macroeconomic factors, which are crucial in volatile market conditions. * Don't strive for perfect data: The quest for perfect data is a luxury few businesses can afford. Focus on using available data for directional insights whilst building a pragmatic roadmap for continuous data improvement. * Get insights into what might happen, as well as what has happened: If your MMM can only tell you where you've been, you're flying blind in 2026. Embedding forecasting and scenario planning enables proactive optimization rather than reactive analysis. The guide also includes a practical checklist to help marketers evaluate MMM capabilities and five critical questions to ask current or potential MMM providers, so they can confidently navigate provider selection and maximize measurement investments. Download Making MMM Fit for 2026: An Essential Guide for Marketers. About Gain Theory: Gain Theory is a leading global marketing effectiveness and foresight consultancy with over 50 years of innovation. By fusing deep expertise with advanced AI, Gain Theory Ltd empower marketers to make smarter and faster data-informed investments that deliver unmatched value. Its innovative solutions provide actionable insights that enable continuous experimentation and improvement, transforming marketing into a sustainable engine for growth. Making MMM Fit for 2026: An Essential Guide for Marketers blends current market trends, proprietary research, and real-world case studies to provide actionable guidance for marketers preparing for 2026. Making MMM Fit for 2026: An Essential Guide for Marketers was compiled by experts from Gain Theory's global team in November 2025, drawing on over 50 years of innovation in marketing effectiveness and insights from working with leading global brands across multiple sectors.
NEW YORK--(BUSINESS WIRE)--Gain Theory, a WPP-owned global marketing effectiveness and foresight consultancy, announced a strategic Data and Measurement partnership with The Association of National Advertisers (ANA) today. This partnership showcases Gain Theory’s industry-leading marketing measurement and optimization capabilities, cementing its position as a trusted advisor to brands navigating the complexities of the modern marketing landscape. As the leading advertising industry body, the ANA is committed to driving a CMO-endorsed growth agenda. Among the most important initiatives of the ANA CMO Growth Council are those centred on data, technology, and measurement — the capabilities that will ensure marketers succeed in the future. Through this partnership with the ANA, Gain Theory will offer exclusive perspectives into AI-driven marketing measurement, next-generation insights, and the future of foresight. These insights will enable CMOs to navigate market shifts and optimize growth strategies, leveraging the power of AI
New York, United States: Gain Theory., a global marketing effectiveness and foresight consultancy that accelerates growth for ambitious brands, has been named a Leader in The Forrester Wave™: Marketing Measurement and Optimization, Q3 2023.
WPP-owned global marketing effectiveness and foresight consultancy Gain Theory has unveiled a new brand identity and website to better reflect its growth acceleration proposition.