Data Engineer (Senior)

COS
London


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.

Job Description



If you are passionate about data and eager to tackle some of the most interesting AI, analytics and data use cases in the fashion retail industry, COS is the place for you!

We are looking for an experienced data engineer who likes to resolve complex issues and choose the best course of action. In this exciting and critical role, you will help us build data products that directly impacts business spanning all global COS. 

You will join COS data engineering team within COS AI, analytics and data (aiad) function.

We appreciate a multitude of technical backgrounds, and we believe you will enjoy working here if you are passionate about data. In this role, you will be required to implement data-intensive solutions for a data-driven organization.

What you will do:

  • Take end-to-end responsibility to build, optimize and support of existing and new data products towards the defined target vision
  • Be a champion of DevOps mindset and principles and able to manage CI/CD pipelines and terraform as well as Cloud infrastructure, in our context, it is GCP (Google Cloud Platform).   
  • Ensure that our built data products work as independent units of deployment and non-functional aspects of the data products follow the defined standards for security, scalability, observability, and performance. 
  • Develop and optimize complex data pipelines, ensuring smooth data flow across multiple business domains
  • Understand business issues, create data-driven solutions and present them to stakeholders, ensuring alignment with the business goals   
  • Work close to the stakeholders around vision for existing data products and identifying new data products to support our business needs.
  • Work with product teams within COS and across H&M group around topics that relate to our data modernization initiative.
  • Evaluate and drive continuous improvement and reducing technical debt in the teams
  • Maintain expertise in latest AI, analytics/data and cloud technologies

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.

What you need to succeed:

  • Extensive work experience including hands-on as either: 
  • Data engineer on modern cloud data platforms /or advanced analytics environments.   
  • Software Engineer with cloud technologies and infrastructure 
  • Experience in different data formats (Avro, Parquet) 
  • Experience in data query languages (SQL or similar) 
  • Experience in data centric programming using one of more programming languages Python, Java /or Scala. 
  • Good understanding of different data modelling techniques and trade-off 
  • Good understanding of Data Lakes, Data Mesh principles, domain-oriented data ownership and governance 
  • Knowledge of NoSQL and RDBMS databases 
  • Have a collaborative and co-creative mindset with excellent communication skills 
  • Motivated to work in an environment that allows you to work and take decisions independently 
  • Experience in working with data visualization tools – PowerBI/Looker studio etc.
  • Experience in DBT for data transformation and GCP tools – Dataflow, Bigquery etc 
  • GCP (or/& Azure) data engineering certification is a plus 
  • Fluent in English both written and verbal 

Additional Information



This is a  Full time permanent contract  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 this office based colleagues also receive:

  • 20 days holiday
  • Discounts on everyday brands and leisure activities
  • Retail Trust membership
  • Pension scheme
  • Discounted gym membership
  • Cycle to work scheme

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 who share and combine their knowledge, experience and ideas. Having a diverse workforce leads to a positive impact on how we address challenges, what we perceive as possible and how we choose to relate to our colleagues and customers all over the world, therefore all diversity dimensions are taken into consideration in our recruitment process.  

In this role you will have some flexibility to work remotely however due to the high level of cross department collaborations approx. 3 days per week office presence is required to foster strong collaborations and team work.

Ready to apply? 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.

Posted 2025-12-03

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