Principal Effectiveness Consultant
11 days ago
City of Westminster
JOIN OUR JOURNEY\n 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. \n 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. \n 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. \n 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. \nOUR VALUES\n\n • Commit to Doing the Right Thing (Act with integrity and accountability)\n, • Help People Flourish (Invest in people)\n, • Time to Unwind – 25 days holiday (+ Christmas holiday closure), a day off for your birthday, holiday buying scheme, flexi‑hours and work abroad scheme.\n, • Hybrid Working – Balance between home and office. We welcome requests for flexible working arrangements from the commencement of employment.\n, • Career Growth – A meritocratic approach to progression with quarterly reviews, CPD Platinum accredited training, mentoring and leadership support.\n, • Health & Wellbeing – Private medical insurance, health cash plan, gym discounts, wellbeing apps Mental Health First Aiders and free professional counselling.\n, • Supporting Families – Enhanced parental leave pay, flexible working and life assurance.\n, • Giving Back – Paid charity days and sustainability initiatives.\n, • Lead end-to-end Marketing Mix Modelling (MMM) projects, from model development to insights generation and data storytelling.\n, • Act as a consultant, working with client teams and client partners directly to ensure measurement frameworks align with their business challenges.\n, • Serve as the key point of contact for a diverse client set, developing sector expertise.\n, • Develop client presentation materials and communicate complex insights in a clear, actionable way.\n, • Identify new business opportunities, contribute to pitches, write proposals, and create thought leadership pieces.\n, • Drive innovation in automated modelling processes, collaborating with engineering teams to enhance efficiency.\n, • Represent Medialab externally, building strong relationships with clients and industry stakeholders.\n\nWHAT YOU BRING TO THE TEAM\nMust Have Skills\n\n, • 6-7+ years’ experience in media measurement & effectiveness, with hands‑on Marketing Mix Modelling (MMM)/econometrics expertise.\n, • Strong consulting and problem‑solving skills, with the ability to translate measurement frameworks into business growth strategies.\n, • Experience in managing and mentoring other consultants/data scientists.\n, • Solid understanding of advertising and media planning, working closely with planners and buyers.\n, • Proven track record in statistical analysis, with the ability to interpret large datasets using various tools.\n, • Strong project management skills, overseeing the end‑to‑end delivery of modelling projects.\n, • Passion for media, marketing, and emerging measurement challenges.\n\nNice to Have Skills\n\n, • Ability to interpret client needs and apply commercially relevant analytical solutions.\n, • Excellent communication skills, with the ability to simplify complex data for all levels of an organization.\n, • Curiosity and innovation, exploring new approaches and data sources to improve insights.\n, • Comfortable working with SQL, GCP, R/Python, or visualisation tools.\n, • Experience with model automation and system integration is a plus.\n, • Familiarity with the charity and financial services sectors is beneficial.\n\n#J-18808-Ljbffr