Overview

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. You’ll have the freedom to lead, support to grow, and a chance to mentor others — because learning and sharing knowledge is what makes a team truly exceptional. You’ll work with top‑of‑the‑range equipment in a workspace designed for creativity, collaboration, and getting things done.

Job Details

• 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: 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

• Understanding Clean Architecture, Mediator Pattern
• Solid grasp of asynchronous communication in distributed systems
• Experience with high-throughput, data-intensive systems
• Contributed towards systems utilizing 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

Acorn Insurance is a specialist provider with over 40 years of experience, helping individuals secure motor insurance across the UK. We serve more than 50,000 customers and offer comprehensive training and in-house coaching, FCA‑regulated industry knowledge, and tools to grow your career. We celebrate diversity and are committed to an inclusive workplace. We are a Disability Confident employer and have been recognised as a Great Place to Work for 2024/5.

Benefits (Your Tomorrow)

All roles are subject to DBS and Financial checks. Some visa restrictions apply. See below for key benefits:

Visit our website to view more of our benefits. This role may require additional checks as part of the application process.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology
• Industries: Insurance

Location notes: Chester, Runcorn, Liverpool, and surrounding areas may have relevant openings. This posting reflects current opportunities at Acorn Group.