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ASOS.com

Senior Software Engineer (Azure, C#)

Hybrid

London, United kingdom

Senior

Full Time

04-03-2026

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Skills

Communication Problem Solving Creativity C# SQL NoSQL GitHub CI/CD DevOps Docker Monitoring AWS Lambda Azure DevOps Azure Functions AWS Redshift Azure Cosmos DB Test Stakeholder Management Kanban Scrum Networking Coaching Architecture Programming Databases git SQL Server Azure AWS Agile .NET .NET Core Kafka Terraform Grafana Microservices

Job Specifications

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

About the Company

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. Whatever your role, ASOS will encourage you to be you, fulfilling your creative potential with our global reach. Push boundaries, and challenge expectations. We're determined to succeed, so we'll trust you to deliver. Help drive our journey to becoming the global fashion destination for 20-somethings... Know more