Job Specifications
We're looking for a passionate Senior Backend Developer who thrives on solving complex problems and building systems that scale. You'll be at the forefront of creating next-generation backend services that genuinely make a difference for our customers and business.
In this role, you'll have the freedom to lead, the support to grow, and the chance to mentor others — because we believe learning and sharing knowledge is what makes a team truly exceptional.
We believe great work happens when talented people have the best tools. That's why you'll have top-of-the-range equipment and a workspace designed for creativity, collaboration, and getting things done.
Job Title: Senior Backend Developer
Location: Liverpool City Centre on a hybrid working basis
Salary: £65,000–£75,000 depending on experience
What You'll Do
Build and maintain scalable microservices in .NET 8.0 and Azure.
Write clean, testable code with a focus on performance and maintainability.
Collaborate with product owners and designers to shape features from concept to delivery.
Participate in code reviews and mentor junior developers.
Architect robust APIs and database solutions with clean, maintainable code.
Deploy and manage applications using Docker and Azure cloud services.
Contribute ideas, share feedback, and grow together with a team that values openness and collaboration.
Bonus: Clean Architecture Understanding Clean Architecture and Mediator Pattern is a huge plus! If you have it, you'll help us build maintainable, testable systems that follow industry best practices.
Our Tech Stack
Backend: C#, .NET 8.0, ASP.NET Core
Database: SQL Server, Entity Framework
Infrastructure: Docker, Azure
Tools: Unit and Integration Testing, Git, Agile methodologies
What We're Looking For
Proven senior-level experience building microservices running on Docker.
Expertise in C#, .NET 8.0, and ASP.NET Core.
Strong experience with SQL Server and Entity Framework.
Hands-on experience with Unit and Integration Testing.
A natural collaborator with strong communication skills — you thrive in a team setting.
A culture fit who loves mentoring others, sharing ideas, and helping the whole team level up.
Self-motivated, with a problem-solving mindset and a passion for building robust, scalable systems.
Understanding Clean Architecture and Mediator Pattern is desirable but not mandatory.
Bonus Points For:
Understanding Clean Architecture, Mediator Pattern
Solid grasp of asynchronous communication in distributed systems
Experience with high-throughput, data-intensive systems
Contributed towards systems utilising Event-Driven Architecture
Why Join Us?
Modern tech stack and a strong culture of engineering excellence
Hybrid options within the UK
Career progression into tech leadership or architecture
Supportive environment with clear standards and plenty of opportunity to innovate
About Acorn Insurance
With over 40 years of experience, Acorn Insurance is a specialist provider dedicated to helping individuals secure motor insurance across the UK. We proudly serve more than 50,000 customers, ensuring they find policies that meet their needs and provide the peace of mind that comes with high-quality cover.
At Acorn Insurance, we offer comprehensive training and continuous in-house coaching. You'll receive in-depth, FCA-regulated industry knowledge and all the tools necessary to grow your career with us.
We celebrate diversity and are committed to fostering a culture where everyone feels respected and valued. As a Disability Confident employer, we ensure our workplace is accessible and inclusive, encouraging our people to bring their best selves to work every day.
The Acorn Group has been recognised as a Great Place to Work for 2024/5.
Grow with Acorn
At Acorn Insurance, we’re proud of our Liverpool roots — and even prouder of how far we’ve come. As part of the Acorn Group, we bring over 40 years of specialist insurance expertise to the table. From humble beginnings, we’ve grown into a national leader, now employing 1,700+ people across the UK and reached a milestone £750 million in total value of insurance policies written in 2024.
We’re growing fast, with new opportunities emerging every week. That growth is largely due to the values we share:
We run through walls for our customers and each other
We challenge the status quo
We succeed when we help those around us succeed
We decide quickly when the smart thing to do is use our judgement
Benefits:
35 days’ holiday (including bank holidays) with additional buy/sell options
24/7 mental health support & free counselling available
Grow with us: Through career fairs, leadership programs, and learning on the go!
Flexible benefits, including early access to salary via our internal platform
Hybrid working options to support work-life balance and individual needs
Recognition awards, social events & more
Our Commitment to our colleague’s:
These aren’t just words — they’re the principles we live by. And we’r
About the Company
Hello, we are the Acorn Group
We provide non-standard car, van, taxi and household insurance to UK customers. With 1,400 colleagues across the country and an increasing number of specialist insurance brands, we focus on serving those parts of the market under served by others. Because the world isn’t standard, and neither are its people.
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