Senior Software Engineer (Azure, C#) (Hiring Immediately)

asos
London

Company Description

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

Tech

  • .NET Core (.NET), C#
  • Databases (SQL and/or NoSQL)
  • Messaging (Azure Service Bus, AWS SQS / SNS, Kafka);
  • Engineering fundamentals (SOLID/KISS/DRY/YAGNI);
  • Design patterns (code)
  • RESTful APIs
  • Cloud computing (Azure App Service, Azure Functions, AWS Lambda etc)
  • Cloud databases (Cosmos DB, DynamoDB, AWS RedShift, Azure SQL Server)
  • Terraform; Azure DevOps Pipelines
  • GitHub
  • Docker
  • Cloud-based monitoring (Azure, AppInsights, Grafana, New Relic)

Soft Skills

  • Agile and XP methodologies (pair-programming)
  • Testing (TDD, unit, integration)
  • Git
  • CI/CD; Monitoring & alerting
  • Stakeholder management & communication
  • Design patterns (architecture, system, security, networking)
  • Performance/load testing
  • Site Reliability Engineering (scalability, availability, costs, maintainability)
  • Kanban / Scrum delivery
  • Software Craftsmanship
  • Coaching and mentoring
  • Lead by example on complex projects

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!)
  • Tech Develops - our internal tech focussed skills development programme to focus on your personal growth as a technologist
  • 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
Posted 2026-02-18

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