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For Companies At a Glance
- Tasks: Lead innovative marketing projects and deliver actionable insights for diverse clients.
- Company: Join Medialab, the UK's leading independent media agency with a purpose-driven culture.
- Benefits: Enjoy competitive salary, 25 days holiday, hybrid working, and wellness perks.
- Why this job: Make a real impact in media effectiveness while growing your career with industry experts.
- Qualifications: 6-7 years in media measurement, strong consulting skills, and passion for marketing.
- Other info: Dynamic environment with opportunities for mentorship and professional development.
The predicted salary is between 48000 - 72000 £ per year.
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 – 25 days holiday (+ Christmas holiday closure), a day off for your birthday, holiday buying scheme, flexi-hours and work abroad scheme.
- Hybrid Working – Balance between home and 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.
YOUR NEXT CHALLENGE
This role sits within the Marketing Effectiveness team at Medialab, helping clients understand the true value of their media investments through advanced measurement solutions, statistical modelling, and integrated insights, which evolve into live & automated reporting solutions.
Reporting to the Head of Marketing Effectiveness, you will lead modelling workstreams, ensure quality control, and integrate research from multiple sources to deliver actionable insights that make a difference to client outcomes.
You will play a dual role: supporting and mentoring team members while continuing to develop your own skills alongside industry experts. Our proprietary Apollo platform automates data collection, allowing the modelling team to focus on insight generation and strategic recommendations rather than manual data processing.
HOW YOU WILL MAKE AN IMPACT
- Lead end-to-end Marketing Mix Modelling (MMM) projects, from model development to insights generation and data storytelling.
- Act as a consultant, working with client teams and client partners directly to ensure measurement frameworks align with their business challenges.
- Serve as the key point of contact for a diverse client set, developing sector expertise.
- Develop client presentation materials and communicate complex insights in a clear, actionable way.
- Identify new business opportunities, contribute to pitches, write proposals, and create thought leadership pieces.
- Drive innovation in automated modelling processes, collaborating with engineering teams to enhance efficiency.
- Represent Medialab externally, building strong relationships with clients and industry stakeholders.
WHAT YOU BRING TO THE TEAM
Must Have Skills
- 6-7+ years’ experience in media measurement & effectiveness, with hands-on Marketing Mix Modelling (MMM)/econometrics expertise.
- Strong consulting and problem-solving skills, with the ability to translate measurement frameworks into business growth strategies.
- Experience in managing and mentoring other consultants/data scientists.
- Solid understanding of advertising and media planning, working closely with planners and buyers.
- Proven track record in statistical analysis, with the ability to interpret large datasets using various tools.
- Strong project management skills, overseeing the end-to-end delivery of modelling projects.
- Passion for media, marketing, and emerging measurement challenges.
Nice to Have Skills
- Ability to interpret client needs and apply commercially relevant analytical solutions.
- Excellent communication skills, with the ability to simplify complex data for all levels of an organization.
- Curiosity and innovation, exploring new approaches and data sources to improve insights.
- Comfortable working with SQL, GCP, R/Python, or visualisation tools.
- Experience with model automation and system integration is a plus.
- Familiarity with the charity and financial services sectors is beneficial.
Principal Effectiveness Consultant in City of London employer: MediaLab Group
Contact Detail:
MediaLab Group Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Principal Effectiveness Consultant in City of London
✨Tip Number 1
Network like a pro! Reach out to people in the industry, attend events, and connect on LinkedIn. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Prepare for interviews by researching the company and its values. Medialab is all about integrity and helping people flourish, so be ready to share how your experience aligns with their mission.
✨Tip Number 3
Showcase your skills through real-life examples. When discussing your experience, focus on specific projects where you made an impact, especially in media measurement and effectiveness.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, it shows you’re genuinely interested in being part of the Medialab team.
We think you need these skills to ace Principal Effectiveness Consultant in City of London
Some tips for your application 🫡
Show Your Passion: When you're writing your application, let your enthusiasm for media and marketing shine through. We want to see that you’re genuinely excited about the role and how you can contribute to our team at Medialab.
Tailor Your CV: Make sure your CV is tailored to the Principal Effectiveness Consultant role. Highlight your experience in Marketing Mix Modelling and any relevant projects you've worked on. We love seeing how your skills align with what we do!
Craft a Compelling Cover Letter: Your cover letter is your chance to tell us why you’re the perfect fit for Medialab. Share specific examples of your past successes and how they relate to the challenges we face. Keep it engaging and personal!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team. Plus, it shows you’re keen to join us!
How to prepare for a job interview at MediaLab Group
✨Know Your Stuff
Make sure you brush up on your Marketing Mix Modelling (MMM) and econometrics expertise. Be ready to discuss specific projects you've worked on, the methodologies you used, and how they led to actionable insights for clients. This will show that you not only understand the theory but can apply it in real-world scenarios.
✨Showcase Your Consulting Skills
Prepare to demonstrate your consulting and problem-solving skills during the interview. Think of examples where you've translated measurement frameworks into business growth strategies. This is key for the role, so be ready to explain your thought process and the impact of your work.
✨Communicate Clearly
Since you'll need to simplify complex data for various stakeholders, practice explaining your past projects in a clear and concise manner. Use storytelling techniques to make your insights relatable and impactful. This will help you stand out as someone who can bridge the gap between data and client needs.
✨Be Curious and Innovative
Demonstrate your passion for media and marketing by discussing any new approaches or data sources you've explored. Show that you're not just about following the status quo; you're eager to innovate and improve insights. This aligns perfectly with Medialab's values and will resonate well with the interviewers.
