At a Glance
- Tasks: Manage supplier-funded media activations and optimise performance on Groceries Online.
- Company: Join Sainsbury’s innovative Nectar360 team, driving digital experiences.
- Benefits: Enjoy discounts, flexible working, and a performance-related bonus.
- Other info: Embrace continuous development and enjoy a supportive, inclusive culture.
- Why this job: Make a real impact in a dynamic retail media environment.
- Qualifications: Experience in client management and data analytics is essential.
The predicted salary is between 40000 - 50000 € per year.
10 month fixed term contract (London / Hybrid)
About the team
Nectar360 sits at the heart of Sainsbury’s retail media and loyalty ecosystem, focused on creating a brilliant digital experience for customers shopping online. We’re a fast-growing, dynamic team powering supplier‑funded campaigns across Sainsbury’s.co.uk, the Sainsbury’s App and OnDemand channels—helping brands connect with customers at the moments that matter. Working as part of our Digital Media function, you’ll collaborate with talented colleagues across trading, digital trading and ad operations to deliver best-in-class execution and measurable impact.
More about the role
As an Ecommerce Client Manager, you’ll be accountable for the end-to-end management and delivery of supplier-funded media activations across your business unit on Groceries Online (GOL). You’ll work within defined trading and planning guardrails to drive supplier investment, optimise spend, and track performance against commitments—ensuring activity aligns to supplier activation plans and delivers excellent execution. Day to day, you’ll partner closely with category suppliers and internal stakeholders to review performance, investment and strategy, while working with ad operations teams to ensure campaigns are activated and optimised effectively on our ecommerce media platform. You’ll also play a key role in educating and upskilling colleagues on GOL media, contributing to the ongoing development of a profitable, customer‑focused media proposition that protects the customer journey. You’ll provide regular updates to the Ecommerce Client Director and Senior Ecommerce Client Manager on client performance, project delivery and revenue status, supporting shared priorities and smooth delivery.
More about you
You’re highly organised and methodical, comfortable managing multiple workstreams in a fast-paced and sometimes ambiguous environment, while maintaining strong attention to detail—especially when working with data and analytics tools. You bring a solid foundation in client management (ideally within retail or FMCG), combining analytical and numerical capability with clear communication and presentation skills that build trust with internal and external stakeholders. Commercially minded and strategically aware, you can align plans to broader business objectives, negotiate effectively to balance competing priorities, and deliver to deadlines. You take ownership, proactively spot risks and opportunities, and collaborate across teams—often through matrix ways of working—to drive outcomes against client objectives and revenue targets. You’re also committed to continuous development and happy to stretch beyond your comfort zone as you grow within the role.
Essential criteria (up to 5)
- Demonstrable experience managing end-to-end delivery of supplier-funded ecommerce media activations (briefing, activation, optimisation and post-campaign review).
- Proven ability to track spend and performance against agreed commitments using data and analytics tools, and turn insights into clear recommendations.
- Evidence of building productive relationships with suppliers and internal stakeholders (e.g., trading/digital trading) to align plans and prioritise activity.
- Experience working with ad operations teams to ensure campaigns are activated accurately and optimised effectively on an ecommerce media platform.
- Ability to manage multiple concurrent workstreams to deadline within defined guardrails, providing clear status updates on performance, delivery and revenue.
Responsibilities
We’d all like amazing work to do, and real work-life balance. That’s waiting for you at Sainsbury’s. Everything our Nectar team does is powered by data and by strong relationships with some of the UK’s favourite brands. The Nectar360 team develops loyalty programmes, turning insight into something that makes a real difference, across both traditional and digital media. It’s like an agency within a retailer, and retail media is a crucial part of our future. The culture might not be what you expect either, because there’s no setup quite like this one. The team is a real priority, connected to almost everything the business does and playing a key role in driving profitability. It’s a place where you can take risks, learn from them, and be recognised.
Qualifications
We are committed to being a truly inclusive retailer, so you’ll be welcomed whoever you are and wherever you work. Around here, there’s always the chance to try something new - whether that’s as part of an evolving team or somewhere else across the business - and we take development seriously and promise to support you. We also recognise and celebrate colleagues when they go the extra mile and, where possible, offer flexible working. When you join our team, we’ll also offer you an amazing range of benefits. Here are some of them:
- Starting off with colleague discount, you'll be able to get 10% off at Sainsbury's, Argos, TU and Habitat after 4 weeks. This increases to 15% off at Sainsbury’s every Friday and Saturday and 15% off at Argos every pay day.
- We've also got you covered for your future with our pensions scheme and life cover. You'll also be able to share in our success as you may be eligible for a performance-related target bonus of up to 10% of salary (which may vary for Nectar360), depending on how we perform.
- Your wellbeing is important to us too. You'll receive an annual holiday allowance and you can buy additional holiday. We also offer other benefits that will help your money go further such as season ticket loans, cycle to work scheme, health cash plans, pay advance (where you can access some of your pay before pay day) as well access to a great range of discounts from hundreds of other retailers. And if you ever need it there is also an employee assistance programme.
- Moments that matter are as important to us as they are to you which is why we give up to 26 weeks’ pay for maternity or adoption leave and up to 4 weeks’ pay for paternity leave.
Please see www.sainsburys.jobs for a range of our benefits (note, length of service and eligibility criteria may apply).
Ecommerce Client Manager in London employer: Sainsbury's
Sainsbury’s is an exceptional employer, offering a vibrant work culture that prioritises employee development and well-being. As part of the Nectar360 team, you will enjoy a dynamic environment where innovation thrives, alongside a comprehensive benefits package including generous discounts, performance-related bonuses, and flexible working options. With a commitment to inclusivity and continuous growth, Sainsbury’s provides a unique opportunity to make a meaningful impact in the retail media landscape while enjoying a supportive and collaborative atmosphere.
StudySmarter Expert Advice🤫
We think this is how you could land Ecommerce Client Manager in London
✨Tip Number 1
Network like a pro! Reach out to current or former employees at Sainsbury’s through LinkedIn. A friendly chat can give you insider info and maybe even a referral, which can really boost your chances.
✨Tip Number 2
Prepare for the interview by knowing your stuff! Research Sainsbury’s recent campaigns and be ready to discuss how your experience aligns with their goals. Show them you’re not just another candidate, but someone who gets their vision.
✨Tip Number 3
Practice makes perfect! Get a mate to do a mock interview with you. Focus on articulating your achievements in client management and how you’ve driven results in previous roles. Confidence is key!
✨Tip Number 4
Don’t forget to follow up! After your interview, send a quick thank-you email to express your appreciation for the opportunity. It shows you’re keen and keeps you fresh in their minds.
We think you need these skills to ace Ecommerce Client Manager in London
Some tips for your application 🫡
Tailor Your Application:Make sure to customise your CV and cover letter for the Ecommerce Client Manager role. Highlight your experience with supplier-funded media activations and how you've successfully managed client relationships in the past. We want to see how you can bring value to our team!
Showcase Your Analytical Skills:Since this role involves tracking performance and optimising spend, be sure to include examples of how you've used data and analytics tools in your previous roles. We love seeing candidates who can turn insights into actionable recommendations!
Demonstrate Your Organisational Skills:This position requires juggling multiple workstreams, so give us a glimpse of how you stay organised and meet deadlines. Share specific examples of how you've managed competing priorities in a fast-paced environment—this will really make you stand out!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets the attention it deserves. Plus, you’ll find all the details about the role and our amazing benefits there!
How to prepare for a job interview at Sainsbury's
✨Know Your Numbers
As an Ecommerce Client Manager, you'll need to demonstrate your ability to track spend and performance. Brush up on your data and analytics skills before the interview. Be ready to discuss how you've used data to drive decisions in past roles.
✨Build Relationships
This role involves collaborating with suppliers and internal stakeholders. Think of examples where you've successfully built productive relationships. Prepare to share how you’ve aligned plans and prioritised activities with different teams.
✨Showcase Your Organisation Skills
You'll be managing multiple workstreams, so highlight your organisational skills. Prepare a brief example of how you've juggled various projects while meeting deadlines, especially in fast-paced environments.
✨Be Ready to Educate
Part of your role will involve educating colleagues on GOL media. Think about how you can convey complex information clearly. Prepare to discuss any experiences where you've trained or upskilled others, showcasing your communication skills.
