Online Commercial Assistant Manager (12 Month FTC)

Team: Digital & Tech
Store: London Support Office
Location: London, Greater London
Contract type: Temporary
Position type: Full Time
Salary: Competitive + Benefits; Closing date: 9th July 2026

How We Hire

Everyone is welcome at M&S. No exceptions. It’s your background, abilities and differences that make you, uniquely you. And when you’re part of M&S, that individuality has the potential to make waves.

About the role

This section tells you all you need to know about the position and its responsibilities, outlining everything we hope to see in a successful candidate.

All the details

At M&S, we’re transforming our online business through data-led decisions and sharper commercial performance. As an Online Commercial Assistant Manager, you’ll play a key role in turning complex data into clear, actionable insight that drives trading decisions and unlocks growth.

This is a highly collaborative role sitting at the heart of Online Performance & Planning, where you’ll work across Trading, Finance, Planning and Inventory teams to ensure performance is understood, risks are identified early, and opportunities are maximised.

This 12-month fixed-term contract is a brilliant opportunity for someone looking to deepen their commercial and analytical experience in a fast-paced digital environment.

What you’ll do

Your key accountabilities will include:

Translate data into meaningful commercial insight, helping teams understand performance, risks and opportunities, and where to focus next
Create and shape insight packs, trading updates and materials for leadership forums, ensuring outputs are accurate and influence decisions at pace
Work closely with Planning teams to identify discrepancies in forecasts and highlight risks and opportunities
Compare Online forecasts with category and financial plans, ensuring alignment across assumptions and timelines
Analyse stock levels, stock cover and availability to optimise performance and reduce excess stock

Who you are

Your skills and experience will include:

Experience in a commercial, trading or online retail environment
Strong analytical skills, with the ability to interpret data and generate clear insights
Confident communicator, able to present information clearly and credibly
Experience working with performance metrics such as sales, margin, stock and fulfilment (beneficial)
Familiarity with planning tools or systems (e.g. MFP, assortment planning) is a plus

What’s in it for you?

Working at M&S means being part of a business that’s evolving fast, with data and digital at the core of how we make decisions.

Here are just a few of the benefits:

20% colleague discount across M&S products
Competitive holiday allowance with option to buy more
Discretionary bonus schemes
Pension and life assurance
Tailored development and progression opportunities
Wellbeing support and virtual GP access
One paid volunteering day a year

Everyone’s welcome

We’re committed to building diverse and inclusive teams where everyone can thrive. We value different perspectives and believe they help us make better decisions for our customers and colleagues.

If you need any support or adjustments during the recruitment process, please let us know.

Ways of working

Our teams work in a hybrid way, with time in the office to collaborate and connect, alongside flexibility to work from home.

Meet the Team

A group of colleagues gathered around a table, smiling and discussing work with laptops open in a modern office setting.

Being an in-person business

We're at our best when we're close to customers, and for many of us at M&S, that means working in store every day.

To stay close to customers, our support teams are in the office three days a week as we believe that skills are developed through collaboration, and that spending time together makes us more creative and connected. It also means we can solve problems as soon as they arise, learn and grow as a team, build trust, and get closer to our colleagues.

Halford Head of Technical Program Management

I think all engineers just love solving puzzles and problems. At M&S, we’re constantly learning new things, whether it’s mastering Swift UI or understanding how customers interact with technology. But this is also a business that listens to engineers and values what we bring to the table. That’s different, believe me.

Janak (He / Him) | Staff iOS Engineer Read full story

Being in third-party brands, working on things M&S hasn’t done before… that plays to my sweet spot. I’ve worked in many organisations throughout my career, and it’s rare to see such cause and effect in your work. The way we’re structured means you’re encouraged to solve problems and you have the autonomy to make progress quickly.

Halford (He / Him) | Head of Technical Program Management Read full story

At M&S, we have Data Scientists, Analysts, and Technical Product Managers, who all share a genuine passion for harnessing data to improve people’s lives. And we’re in a unique position where we can actually help many different kinds of people, from our customers to our colleagues in store and in our support centre.

Deepak (He / Him) | Data Scientist Read full story

Make Your Mark

Upcoming projects

Take part in our M&S Digital & Tech team days. Grow your digital and data skills through our BEAM Academy. Or challenge yourself at one of our business-wide hackathons. We also partner with Women in Data, Databricks and Cajigo to increase opportunities for women in digital and data.

Opportunities to be heard

Your voice and your ideas matter here. Our 8 colleague networks are places to find support, listen to each other and encourage debate. You can pitch ideas ‘Straight to Stuart’, our CEO, or get involved in our BIG (Business involvement Group).

Colleague Networks

We want you to feel supported, no matter what.

Family & Carers Network

A support network for parents and carers, offering a space for colleagues to share experiences, exchange ideas, and access useful resources.

Health and Wellbeing Network

Providing a safe space for colleagues with all types of health conditions or disabilities and supporting with business initiatives to ensure our stores are truly accessible for our customers.

Culture and Heritage Network

Raising awareness of various religions and cultures through events and comms, to educate others and better represent our M&S colleagues and customers.

LGBTQ+ Network

Proactively representing LGBTQ+ issues and opportunities to deliver a truly inclusive place to work and shop for our colleagues and customers.

Gender Equality Network

Addressing gender-related challenges, raising awareness, and driving action to ensure equal opportunities for all.

Cancer Network

Fostering a supportive and inclusive workplace culture, addressing stigma, providing guidance and raising awareness to empower and assist colleagues affected by cancer.

Forces Community Network

Supporting colleagues connected to the Armed Forces, aiding their transition to civilian life, and ensuring that they thrive in the workplace.

Menopause Network

Initiating and encouraging open conversations about menopause by offering support and sharing experiences.

Benefits

Wellbeing hub

Get access to resources to support your wellbeing, including a free virtual GP service.
Giving back

Support your favourite charities by donating through your pay or even volunteering for them.
Pay

Earn a competitive salary.
Colleague discount

After completing your probation period, you'll receive 20% colleague discount across all M&S products and many of our third-party brands for you and a member of your household.

Please note only contracts of more than 12 weeks are eligible for this benefit.
Time off

Competitive holiday entitlement with the potential to buy extra holiday days.
Bonus

We have discretionary bonus schemes depending on your role and our business performance.
Life assurance

Get cover for twice your salary up to age 70 (double with our Pension Plan).
Workplace savings

We’ll help you save through our Pension Savings Plan, Share Buy and Sharesave schemes.
My Choices

Save on everyday costs through discounts and offers and get access to great health benefits.
Cycle to work

Bike/accessory hire with Cycle to Work and save on tax and national insurance.
Smart tech

Buy the latest technology with interest-free financing directly from your salary.
Family friendly policy

Industry-leading maternity, paternity, adoption and neo-natal policies, providing support and flexibility for you and your family.

How to Apply

Here’s what to expect at each stage of the application process. This can change depending on the role you’ve applied to. If you need any reasonable adjustments made at any stage, let us know and we can help.

Send us your application

Fill in our short application form and hit submit.

Online assessment

Depending on the role you are applying for, you may be invited to do an assessment. Your Talent Acquisition Partner will guide and inform you along the way.

Interview

We'll invite you to join us for an interview. This could be remote or in person. Here, we'll ask you some role based technical questions and examine the behaviours we're looking for.

Decision

After we’ve made our decision, we’ll be in touch. If you’ve been successful, we’ll officially invite you to join the team and let you know the next steps.