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Senior Software Engineer (Azure, C#)

ASOS.com· London, England, United KingdomLicensed sponsor
Posted 2 Jun 2026 · Added 18 Jun 2026, 19:49Software Engineer
ASOS.comnomatch
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We're ASOS. We blend our flair for fashion with our love of cutting- edge technology, but more importantly were interested in how we can bring the best out of you.

We exist to give people the confidence to be whoever they want to be, and that goes for our people too. At ASOS, you're free to be your true self without judgment, and channel your creativity into a platform used by millions.

Job Description

Hybrid working

We work in-office at least 2 days a week to move faster, learn quicker, and build a strong, collaborative culture.

At ASOS, we take real pride in our best in class microservices architecture, whilst sticking to the ASOS values of Authentic, Brave and Creative and are looking for Software Engineers to support and deliver the on-going software which makes ASOS awesome!

As a Senior Software Engineer in one of our 30 engineering platforms operating at hyper-scale receiving thousands of requests per second, you'll work as part of strong cross functional Agile teams driving quality and technology bringing your skills and experience to share with the team and mentor the other engineers' day to day. From problem solving to new concept ideas, you have the genuine opportunity to unleash your full potential and creativity on a variety of ASOS software projects.

What we're using:

Latest versions of .NET Framework. .NET Standard and .NET Core (C#)

Azure Service Fabric/AKS/ACS/Cloud Services

Azure Service Bus

Azure Cosmos DB, SQL DB

Git, TeamCity and Octopus Deploy

ATDD/BDD

Software Craftsmanship

Scrum/Kanban

What our day looks like:

Work as part of an enthusiastic and motivated agile development team that takes pride in delivering high-quality software into production

Take a test first approach from business requirements through to code

You will/Continually develop and improve our code and technology, whilst playing an active role in the conception of brand new features for our millions of global customers

Keep our customers happy by writing high quality code to handle our hyper-scale demand

Join our regular Tech Develops days to learn new things, take part in internal and external hackathons, share your knowledge and help to drive improvements in engineering.

Qualifications

What you will need:

A desire to develop simple and maintainable solutions that are aligned to modern engineering patterns and practices

Hands-on experience of automated testing practices e.g., TDD/ATDD/BDD

Able to design and implement cloud-native distributed systems that leverage RESTful APIs, messaging and streaming

Proven experience in Agile and XP methodologies (Scrum, pair-programming)

Experience of operating microservices in a production environment

Able to define continuous delivery pipelines to ensure software can be delivered reliably & efficiently to production

Knowledge of at least one cloud provider e.g., Azure, AWS, GCP

Additional Information

What's in it for you?

Competitive salary, pension, and private medical care scheme

Performance related bonus

Flex benefits allowance - which you can chose to take as extra cash, or use towards other benefits

25 days paid annual leave + an extra day for your birthday

Employee discount (hello ASOS discount!)

Opportunity to represent ASOS at industry leading events

Opportunity to help shape and drive our DE&I initiatives in Tech (like our WIT movement and Diversity mentoring in Tech)

Opportunity to make an impact from day one and work with the latest in cutting edge of technology