COS Assistant Assortment Planner

COS
London
Job Description

As an Assistant Assortment Planner, you support assortment planning and selling to drive growth and sustainable profitability. You assist in optimising the product mix and contribute to global and regional article ranking. You work cross-functionally with Buying, Planning, Design and Controlling teams to align assortments with customer needs and strategy, providing insights and data-driven analysis. You also support Senior Assortment Planners with meeting preparation, reporting and ad-hoc analysis to enable strong decision-making. Through efficient execution, timely purchasing support and structured ways of working, you help deliver a competitive and well-balanced customer offer across markets.

What you will do:

Support assortment optimisation - Assist in analysing product performance and help optimise the product mix to drive sales, margin and sustainable growth.

Contribute to article ranking and planning - Support global and regional article ranking by providing data insights and helping prioritise key products within the assortment.

Cross-functional collaboration - Work closely with Buying, Controlling & Merchandising teams to ensure assortments align with customer needs, trends and company strategy.

Prepare analysis and reporting - Support Senior Assortment Planners with reporting, presentations, and ad-hoc analyses to enable informed decision-making.

Operational and purchasing support - Provide timely execution support, including data management, purchase-related follow-ups, and maintaining structured ways of working.

Qualifications

Alignment to our company values is the most important characteristic we look for in all new joiners. Our values are the behaviours that we appreciate above and beyond anything else. We are open-minded and curious, we dare to be different, we believe in constant improvement and we empower and trust you to take ownership. Our values are part of who we are, what we stand for and how we act.

In addition, we are looking for:
  • Previous experience in an assistant-level role within Buying, Planning or Merchandising
  • Strong analytical and data-driven mindset, with the ability to interpret sales performance and translate insights into clear actions
  • Proficiency in Microsoft 365, with good Excel skills
  • Solid commercial awareness, with an interest in fashion retail, customer behaviour and market trends
  • Confident collaboration and communication skills, with the ability to work effectively across functions
  • Strong organisational skills and attention to detail, with a structured approach to managing data and deadlines
  • A proactive, solution-oriented mindset, with high learning agility and the ability to adapt in a fast-paced environment

Additional Information

This is a full time permanent role based at our Head Office in London.

Benefits

We offer all our employees attractive benefits with extensive development opportunities around the globe. All our employees receive a 25% staff discount usable on all our H&M Group brands in stores and online. In addition to our staff discount, all our employees are included in our H&M Incentive Program - HIP. You can read more about our H&M Incentive Program here .

In addition to this UK based colleagues also receive:
  • Up to 25 days holiday
  • Annual health checks
  • Pension scheme
  • Discounts on various activities and financial/lifestyle products via our benefits hub
  • Cycle to work scheme
  • Discounted gym membership
  • Employee assistance via retail trust
  • Private health & dental care
Inclusion & Diversity

At COS we're determined to create and maintain inclusive, diverse and equitable workplaces throughout our organisation. Our teams should consist of a variety of people that share and combine their knowledge, experience and ideas. Having a diverse workforce leads to a positive impact on how we address challenges, on what we perceive possible and on how we choose to relate to our colleagues and customers all over the world. Hence all diversity dimensions are taken into consideration in our recruitment process.

Company Description

COS offers a wardrobe of ready-to-wear and accessories rooted in exceptional quality and lasting design. The creative soul of the brand is fuelled by a deep connection to modern culture, dynamic global cities and compelling fashion movements. With an emphasis on expert craftsmanship, innovation and materiality, collections are created with a mindful approach, seamlessly blending contemporary and timeless. Learn more about COS here .

Ready to register interest? Click on the I'M INTERESTED link where you can upload your CV securely. Once we have received your application, we will keep you updated regularly about the status of your application so please look out for our email.

We are looking forward to hearing from you!

Job Location

Google Maps requires functional cookies to be enabled
Posted 2026-06-06

Recommended Jobs

Librarian - Inspiring Outstanding Secondary School -...

Marchant Recruitment
London

Librarian - Inspiring Outstanding Secondary School - Camden, London Start Date: As soon as possible Contract: Full-time, Permanent Salary: Paid to scale Librarian An Outstanding sec…

View Details
Posted 2026-05-07

Estate Management Surveyor

London Borough of Haringey
Haringey, Greater London

Job Category : Interims Location :ALEXANDRA HOUSE, London Borough of Haringey Hours Per Week : 40.00 Start Date : Immediate Start Start Time : 09:00 End Time : 17:00 Salary: £357.60 …

View Details
Posted 2026-01-17

Music Teacher (ECT) - Outstanding Mixed Secondary School,...

Marchant Recruitment
London

Music Teacher (ECT) – Outstanding Mixed Secondary School, Wandsworth School Information This Outstanding Ofsted-rated mixed secondary school in Wandsworth educates students aged 11–18 and is wi…

View Details
Posted 2026-01-10

Assistant Manager

The Body Shop International Limited
London

The Body Shop When Anita Roddick founded The Body Shop in 1976, she had a vision. Business as a force for good – that’s us. Over 40 years later, we’re proud to be pioneering cruelty-free beauty ev…

View Details
Posted 2026-06-06

Business Studies Teacher - Outstanding High School, Harrow

Marchant Recruitment
Harrow, Greater London

An Ofsted Outstanding High School in Harrow requires a permanent, full-time Teacher of Business Studies, starting January 2026. Join a successful faculty focused on commercial literacy and real-world…

View Details
Posted 2025-10-25

Weekend Nanny

Exclusive Household Staff
Chelsea, Greater London

Our clients, based in Chelsea, are looking for a kind, patient, and flexible Weekend Nanny to care for their two children aged 5 and 13. The position is a mixture of shared-care and sole-charge, and…

View Details
Posted 2025-09-10

Locum Band 7 MSK Podiatrist - South East London

Pulse
London

Job Title: MSK Specialist Podiatrist Banding: Band 7 Location: South-east London Start Date: ASAP Duration: Ongoing Hourly Rate: £30-32 Working Hours: 37.5 hours per week, Mond…

View Details
Posted 2026-04-15

Primary SEN Teaching Assistant | Immediate Start

Marchant Recruitment
London

Primary SEN Teaching Assistant | Supportive Primary School in Westminster Immediate Start | Long-Term Role | Fantastic Team Environment Are you a passionate and dedicated SEN Teaching Assistant…

View Details
Posted 2025-10-25