The Acorn Group are looking for a highly skilled, experienced Backend developer to join our team. We are looking for a developer that has experience developing scalable applications using the latest .Net Technologies. You will have the chance to work on complex projects involving large datasets, message bus architectures, and streaming large sets of data.
Job Title: Senior Backend Developer
Salary: Up to £75,000 depending on experience
Location:  Liverpool City Centre, Hybrid working available
Working Hours: 37.5 hours per week, Monday to Friday, 9am to 5:30pm
What you’ll be doing:
*Application Development: Design, develop, and maintain robust applications using NET 8 and C#.
*Implement and manage microservices architecture for scalable and efficient system design.
*Build out internal reusable libraries to be consumed by our team’s ensuring consistency, reliability and maintainability.
*Utilising MediatR and MassTransit frameworks for inter-service communication.
*You will be working extensively with RabbitMQ for message queuing and handling.
*You will handle large datasets using MongoDB, Azure Cosmos DB, MySQL, and MS SQL Server.
*You will Work closely with cross-functional teams to define backend requirements, design scalable solutions, and implement new features. Ensure seamless integration with upstream services.
*Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues.
What we are looking for:
*Minimum of 5 years of professional experience in .NET development.
*Proficient in .NET 8 and C# programming.
*Strong experience with microservice architecture.
*Familiarity with MediatR and MassTransit frameworks.
*Extensive experience with RabbitMQ and message bus architectures.
*Proficient in Azure Cosmos DB, MySQL, and MS SQL Server.
*Experience with Redis for caching mechanisms.
*Strong understanding of handling large datasets and data streaming.
*Strong communication and teamwork abilities.
*Ability to work in an Agile/Scrum environment.
About Acorn Insurance
We are a growing business with great opportunities to build your knowledge of the financial services industry. As a specialist insurance provider, we have 40 years of experience helping people secure motor insurance across all of the UK. We help more than 50,000 customers to find a policy that meets their needs and gives them the peace of mind that comes with high-quality insurance.
At Acorn Insurance we provide full training and continuous coaching inhouse you will be given full in-depth FCA regulated industry knowledge and have all the tools necessary to help you personally grow your career with the business.
We celebrate difference and it’s important to us that we have a culture where our people feel respected and valued for who they are. We pride ourselves on being accessible and encourage inclusive environments where our people can always give and show the very best of themselves.


Why Acorn Insurance?
Acorn Insurance want to give you more than a job, we want to give you a purpose and a career. Enhanced Annual Leave entitlement starting at 31 days and potentially increasing to 35 days per year depending on grade & length of service (including bank holidays)
*Additional Buy & Sell Holidays
*Company Sick Pay Scheme
*Company Paid Maternity & Paternity Leave
*Generous Company Pension Scheme
*A comprehensive Mental Health support system via the health assured Employee Assistance Programme (EAP)
*A wide network of mental health first aiders.
*Our very own reward and discount platform "Your tomorrow"
*Fresh fruit Deliveries twice a week
*£250 Refer a friend bonus
*Cycle to work scheme
*Free eye test vouchers and a contribution towards the frames
*Regular Employment Engagement including ongoing competitions with fantastic prizes
*Charity fundraising events
All roles are subject to DBS and Financial checks, any offer made will be conditional until checks are completed to a satisfactory standard.
Due to the length of training and complexity of the role, we can only accept applications from candidates who have at least one year remaining on their (Graduate/ Post study work) visa. Unfortunately, we are unable to provide visa sponsorships.
At Acorn, we are committed to creating an inclusive and supportive work environment. We recognise that candidates may have specific needs and are happy to consider reasonable adjustments to the recruitment process and working environment to accommodate individual requirements. Whether it’s modifying equipment, adjusting working hours, or providing additional support, we aim to ensure all employees can perform at their best. If you require any reasonable adjustments, please let us know during the application or interview process, and we will work with you to ensure your needs are met.
#LI-JL1