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Senior Software Engineer; Azure, C#

Job in Greater London, London, Greater London, EC1A, England, UK
Listing for: ASOS.com
Part Time position
Listed on 2026-01-13
Job specializations:
  • Software Development
    Software Engineer, Cloud Engineer - Software, Full Stack Developer, Senior Developer
Job Description & How to Apply Below
Position: Senior Software Engineer (Azure, C#)
Location: Greater London

Hybrid Working

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

About the Role

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.

Responsibilities
  • 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
  • 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.
Technologies We Use
  • 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, Team City and Octopus Deploy
  • ATDD/BDD
  • Software Craftsmanship
  • Scrum/Kanban
Qualifications Tech
  • .NET Core (.NET), C#
  • Databases (SQL and/or No

    SQL)
  • 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, Dynamo

    DB, AWS Red Shift, Azure SQL Server)
  • Terraform;
    Azure Dev Ops Pipelines
  • Git Hub
  • Docker
  • Cloud‑based monitoring (Azure, App Insights, 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
Benefits
  • Competitive salary, pension, and private medical care scheme
  • Performance related bonus
  • Flex benefits allowance - which you can choose 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
Seniority Level

Mid‑Senior level

Employment Type

Full‑time

Job Function

Information Technology

Industry

Retail

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Position Requirements
10+ Years work experience
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