Software Engineer jobs in United Kingdom

We’ve recently welcomed musicMagpie to the AO family, a company that shares our passion for putting customers first, caring about our teams and making a real difference. Together, we’re set to make an even bigger difference and with that comes exciting opportunities to shape the future of sustainable tech.

musicMagpie are on a mission to make tech more affordable and help protect the planet by encouraging recycling, refurbishing, and repurposing tech and physical media products. Giving millions of customers a smart, sustainable, and trusted way to buy, sell, and rent phones, tablets, games consoles, laptops, and other tech - all in one place.

As a .NET Software Developer within the Warehouse Services team at musicMagpie, your core responsibility is to analyse system requirements and effectively prioritise development tasks. You will be expected to write clean, maintainable, and testable code using .NET programming languages.

You will play a key role in the development and enhancement of our Warehouse Management and Order Processing systems, which are critical to the success of our Buy, Sell, and Rent services.

Key Responsibilities:

• Develop and maintain scalable full-stack .NET applications that support business operations, courier systems, and WMS functionality.
• Design and implement APIs with a focus on microservice architecture and efficient API management.
• Write clean, testable, secure, and efficient code following SOLID principles and modern design patterns.
• Develop technical specifications and system architecture in collaboration with stakeholders.
• Interface with third-party platforms and services through robust API integrations.
• Utilise database technologies including MySQL and NoSQL solutions to support application data needs.
• Participate in Agile ceremonies, sprint planning, and contribute to backlog refinement.
• Conduct code reviews, refactor legacy code, and promote high standards of code quality across the team.
• Support CI/CD pipelines and contribute to continuous integration and deployment practices.
• Monitor and troubleshoot production systems to ensure performance, reliability, and uptime.
• Maintain comprehensive documentation and contribute to the development of operational procedures.
• Use Git and source control tools effectively to manage codebase and collaboration.
• Mentor junior developers and support knowledge sharing within the team.
• Stay up to date with emerging technologies and propose improvements to enhance system performance and developer productivity.

Essential Skills and Experience

• Demonstrable experience in developing web-based applications using the Microsoft .NET framework.
• Proficient in C#, with hands-on experience in ASP.NET Core, Web API, and Entity Framework.
• Practical experience working with both relational databases (e.g., MySQL) and NoSQL technologies.
• Competent in using Git for source control and collaborative development.
• Familiarity with Agile methodologies and the ability to contribute effectively within iterative development cycles.
• Working knowledge of DevOps practices, including CI/CD pipelines and deployment automation.
• Strong analytical and problem-solving skills, with the ability to diagnose and resolve complex technical issues.

Desirable Skills and Experience

• Prior experience in ecommerce or related digital retail environments.
• Exposure to warehousing or logistics systems and workflows.
• Understanding of desktop application development using technologies such as WinForms or WPF.
• Familiarity with courier API integrations (e.g., DPD, Royal Mail) and related logistics interfaces.

musicMagpie is the surprisingly quick and easy way to declutter and get cash for your stuff, which is why millions of people use us every year to sell their mobile phone, games consoles, tablets, smartwatches, CDs, DVDs, Games, Books, Blu-Rays & much more (you can now sell LEGO® with us too!). We've paid hundreds of millions to our happy customers - the smart, sustainable and trusted way to shop an sell

As a pioneer in the circular economy, we’ve built a trusted platform using our circular model of recycling, refurbishing, reselling and renting products to give tech a second life and help to reduce e-waste on a massive scale.

As a musicMagpie employee, you’ll be part of a company that’s making a real difference, redefining how people buy and sell tech, and shaping a greener, more sustainable future. Plus, you’ll have the chance to learn, grow and innovate alongside a team that’s friendly, supportive and always looking ahead!

• 33 days holiday (inclusive of Bank Holidays)
• Holiday purchase scheme on top of your above statutory allowance!
• Salary sacrifice pension scheme
• Share save scheme
• Discounts across the musicMagpie product range
• Making a difference - 2 days paid leave for volunteering at a charity of your choice
• Health & wellbeing - Employee Assistance Helpline (EAP) & access to mental health first aiders and much more