Marketing Effectiveness Consultant at Medialab in London, England, GB

JOIN OUR JOURNEY

Medialab is the UK’s leading independent media agency, and one of the fastest growing in the industry. We’re a media agency that’s made differently: purpose-led, data-driven, founder-run and proudly independent.

Our entrepreneurial spirit means success is recognised and rewarded. There are no limits to what you can achieve here, which our employees agree with, evidenced by being a Campaign Best Place to Work for six consecutive years and one of The Sunday Times Best Places to Work 2025. As well as this, we’re Campaign’s Independent Agency of the Year 2024 and Media Week’s Independent Agency of the Year 2025.

We are IPA Effectiveness accredited, an IPA People-First agency, and All In Champions, with industry-leading work recognised by double-gold at the 2024 IPA Effectiveness Awards for our work with Laithwaites and a 2025 Effie for our work with Alzheimer’s Society.

Our independence means we can focus 100% on doing the right thing to secure success for our clients and our brilliant people. We work with a wide variety of clients including Hovis, IG, Sharps Bedrooms, SunLife, Standard Life, Ancestry, Laithwaites Wine, Save the Children, Guide Dogs, Alzheimer’s Society, RNLI and Clearscore.

OUR VALUES

• Commit to Doing the Right Thing (Act with integrity and accountability)
• Help People Flourish (Invest in people)
• Dig Deeper to Understand Better (Data driven curiosity)

OUR COMMITMENT TO YOU

Working at Medialab comes with lots of perks including all the usual things you would expect, such as a competitive salary package, pension, season ticket loans, cycle to work scheme, weekly social events and big summer / end of year parties.

On top of that, we offer extra benefits, which make life at Medialab even more rewarding:

• Time to Unwind – We offer generous holiday entitlement that increases with long service, plus Christmas closure and a birthday day off. Alongside this, we offer flexible benefits including a holiday buy scheme, flexi-hours, a work abroad scheme, cultural bank holiday swaps, and Friday Summer hours.
• Hybrid Working – Balance between home and office (3 days in office). We welcome requests for flexible working arrangements from the commencement of employment.
• Career Growth – A meritocratic approach to progression with quarterly reviews, CPD Platinum accredited training, mentoring and leadership support.
• Health & Wellbeing – Private medical insurance, health cash plan, gym discounts, wellbeing apps Mental Health First Aiders and free professional counselling.
• Supporting Families – Enhanced parental leave pay, flexible working and life assurance.
• Giving Back – Paid charity days and sustainability initiatives.
• Perks & Rewards – Retail discounts, long-service trips and an unforgettable team culture.

MEET APOLLO: MEDIALAB'S DATA POWERHOUSE

Apollo are a team of 40 like-minded data-driven individuals, who have various engineering, analytics and advanced measurement and re-attribution capabilities, meaning learning different techniques and approaches are regular occurrences, which only helps accelerate an individual’s consultancy experience.

They are the main point of measurement contact for our Client Planning teams, supporting clients across charity/not for profit, financial services, and D2C brands, amongst many other rewarding clients.

We are IPA effectiveness accredited since 2021 and awarded through till 2027 because of our on-going dedication to building a real culture of effectiveness through measurement and leading the way in delivering best in class results for our client set.

This role means joining one of the most awarded Effectiveness agencies in the UK, with the team winning a double IPA Gold win for its advanced regional measurement approach on Laithwaites in 2024, and as of 2026 – Another Double IPA gold for our Modelling and forecasting work with Alzheimer's Society – Showcasing the teams experience of translating complex analytics into actionable insight across our client partners.

YOUR NEXT CHALLENGE

As we continue our growth journey. We are on looking to hire for a Marketing Effectiveness Consultant to sit within our Marketing Effectiveness team within Apollo. This opportunity will allow you to utilise your foundational statistical and measurement knowledge to create and interpret insights into commercial value to clients through data-led recommendations.

The opportunity will see you collaborating with clients who are highly rewarding in nature and receptive to your consultancy, facilitating an environment in which to thrive.

In this role, you will advance your cross-sector knowledge through modelling, regional testing and campaign measurement benchmarking. Guided by other trusted Industry experts who can support you in becoming a trusted individual who can help guide clients to make better decisions that have meaningful outcomes.

WHAT YOU BRING TO THE TEAM

You will be leading & supporting end-to-end Marketing Mix Modelling/econometrics projects, from initial data collection to model development, as well as insights generation/outputs and data storytelling. Aswell as quality control of analytics produced within the team to ensure robustness and validity.

The Consultant level is expected to develop expertise in the sector and be a go-to person for clients and junior colleagues in terms of model outputs and capabilities. And also be responsible for development of client presentation material alongside the senior team.

You will work alongside and coach the junior members to your current high standards. Along with being able to Innovate, develop and streamline the automated modelling process – working closely with the in-house engineering teams to make your plans a reality.

• Largely working across a rewarding charity/not-for-profit space, building multiple models to across both donations and service usage parts of the organisation. Resulting in modelling efforts being highly rewarding vs. other sectors modelling is typically deployed across.
• Ample opportunities to present work/insights directly day-to-day teams and senior board members on both non-media and media performance.
• Educating clients on what Marketing Mixed Modelling is and using Apollo to help embed it into daily practice to look at model results.
• Working with the client planners in Medialab to help drive the data driven success.
• High levels of engagement from client-set, charities particularly vocal on how modelling has helped with planning that other platforms have struggled with. Adding to job satisfaction.

ESSENTIAL SKILLS

• Hands-on experience with delivering media measurement and effectiveness projects using Marketing Mix Modelling (MMM)/ econometrics techniques, geo-causal modelling techniques.
• Demonstrate analytical principles, problem-solving skills and a strong attention to detail.
• Distilling model mechanics into practical, "real-world" applications and media-planning recommendations.
• Solid experience in handling and analysing data using a range of tools/approaches to provide the best response to clients’ challenges.
• Conceptual knowledge and experience within different lifecycle stages of project delivery.
• Significant working knowledge of Microsoft Excel and PowerPoint and presentation skills.
• Comfortable working independently on analytical tasks and as part of a team.
• A passion for marketing and/or measurement and how analytics can be used to solve client challenges through insights.

At Medialab we are committed to fostering a culture that celebrates creative thinking, different perspectives and the many different cultures that exist. We welcome applicants from diverse backgrounds and identities. All qualified applicants will receive fair consideration, regardless of age, disability, race, ethnicity, gender, sexual orientation, gender identity, religion, belief, marital status, social mobility or any other protected characteristic. If you require any reasonable adjustments to make our recruitment process more accessible for you, please reach out to our Head of Talent Acquisition and Inclusion at Kianna.Briggs@medialabgroup.co.uk. Requesting a reasonable adjustment will not affect your application.