Mid-Level Software Developer

ACTIVATE GROUP LIMITED; United Kingdom; Remote; GBP 45,000 - 60,000; Full time

Benefits offered by this job

33 days holiday incl. bank holidays

Private health plan

Life assurance

Birthday surprise

Job summary

ACTIVATE GROUP LIMITED is seeking a Mid-Level Software Developer to join our IT team in a remote UK role. You will work on full-stack development including C#/.NET, React, Next.js, and TypeScript to deliver robust web applications.

You’ll contribute to API development, database integration, testing, and documentation while collaborating within Agile teams to drive improvements across the stack.

Qualifications

• 3+ years hands-on software development in full-stack roles.
• Proficient with C# and .NET Core/.NET Framework.
• Experience with React, TypeScript and Next.js.
• Familiar with RESTful APIs and modern web tech.

Responsibilities

• Design, develop and maintain web applications using C# & ASP.NET Core.
• Build front-end interfaces with React 19, Next.js, TypeScript and Material UI.
• Develop server-side logic and APIs with .NET 8.
• Integrate databases using MySQL, SQL Server and MongoDB.
• Create and consume RESTful APIs and third-party services.
• Perform code reviews and maintain coding standards.
• Write unit and integration tests, debug and fix issues.
• Document APIs and system architecture.
• Collaborate with designers, PMs and QA in Agile sprints.
• Contribute to codebase improvements and best practices.

Skills

Full-Stack development

C# & .NET

React & Next.js

TypeScript

HTML5 & CSS3

REST APIs

Git

Problem solving

Tools

Jest

React Testing Library

Entity Framework

SignalR

MySQL

SQL Server

MongoDB

Job description

Mid-Level Software Developer

Location: Remote

Department: IT

Contract type: Permanent / Full-time

About the role

We’re looking for an experienced Full Stack Mid-Level Software Developer to join our IT department.

Activate Group is a growing UK business with 1,000+ team members nationwide. This is an exciting opportunity to build a long-term career with a company that values its people and offers genuine development and progression opportunities.

Key responsibilities

• Application Development: Design, develop, and maintain web applications using C# & ASP.NET Core.
• Front-end Development: Build dynamic user interfaces with React 19, Next.js (App Router), TypeScript and Material UI, with SignalR for real-time updates, ensuring responsiveness, accessibility and a seamless user experience.
• Back-end Development: Develop server-side logic, services, and APIs using .NET 8, ensuring high performance and responsiveness of applications.
• Database Integration: Implement and maintain database solutions using MySQL, SQL Server, MongoDB and Entity Framework as well as using Stored Procedures where required. Some Query optimization, data modelling, and performance tuning would be desirable
• API Development and Integration: Create and consume RESTful APIs and integrate third-party services.
• Code Reviews and Best Practices: Participate in peer code reviews to ensure high code quality, performance, and adherence to best practices and coding standards.
• Testing and Debugging: Write unit and integration tests to ensure the reliability of applications. Identify and fix bugs to maintain a stable codebase.
• Documentation: Produce clear and concise technical documentation for development processes, APIs, and system architecture.
• Collaboration: Work with cross-functional teams including designers, product managers, and QA to deliver high-quality solutions in an Agile environment.
• Continuous Improvement: Stay updated with the latest developments in .NET and Blazor, proposing and implementing improvements to the codebase and development process.

Skills and experience

• Full-Stack Development: Proven experience in full-stack web development, building both front-end interfaces and back-end services.
• Web Application Deployment: Experience with the full software development lifecycle, including deploying applications to production environments.
• 3+ years of hands-on experience in software development with proficiency in C# and .NET: Strong experience in developing applications using C#, with in-depth knowledge of .NET Core and .NET Framework.
• React and Next.js: Solid experience building web applications using React (or similar) with TypeScript, ideally with Next.js and component libraries such as Material UI, plus unit testing with Jest and React Testing Library.
• Front-end Technologies: Familiarity with HTML5, CSS3 and modern JavaScript/TypeScript, with a good understanding of responsive design principles, state management patterns and consuming REST APIs.
• Database Skills: Experience working with relational databases using Entity Framework and experience with databases such as MySQL, SQL Server and MongoDB, including database design, query optimization, and stored procedures.
• API Development: Experience in creating and consuming RESTful APIs , with workig knowledge of protocols like JSON and XML.
• Version Control: Proficiency in Git for version control, including branching, merging, and pull requests.
• Problem-Solving and Debugging: Strong problem-solving skills and ability to debug and troubleshoot across various layers of the application stack.

Desirable (but not essential):

• CI/CD: Experience with continuous integration and delivery pipelines, automating build, test, and deployment processes.
• Security Best Practices: Understanding of secure coding practices, authentication, and authorization (OAuth, JWT).
• Agile Development: Experience working in Agile/Scrum teams, with an ability to collaborate effectively in sprints and participate in ceremonies like stand-ups and retrospectives.

Benefits

We believe in rewarding our people for the great work they do. When you join Activate Group, you can expect:

• 33 days holiday, including bank holidays
• Personal health cash plan – claim back the cost of everyday healthcare such as dental and optical check-ups
• Enhanced maternity, paternity, adoption and shared parental pay
• Life assurance at three times your basic salary
• Free breakfasts and fresh fruit
• A birthday surprise for everyone

What you can expect from us

At Activate Group, we want everyone to have the tools and support they need to do their best work. We’re an innovative business that continuously reviews and improves our systems, processes and ways of working, making sure they support our teams to do their jobs effectively.

Every role at Activate Group is aligned to our wider business vision and purpose – making someone’s bad day better. You’ll understand how your role contributes to the bigger picture and how your work helps deliver excellent outcomes for customer and partners.

We believe work should be enjoyable. We make time to celebrate success, recognise achievements and bring people together at team events and company-wide celebrations. We’ll also support your ongoing development through regular feedback and career planning.

Whether you’re based in one of our contact centres in Halifax, Peterborough or Huddersfield, working at an Activate Accident Repair (AAR) site, or working from home, you’ll be part of a supportive culture where people are encouraged to succeed.

A bit about us

Activate Group is a fast-growing business approaching 1,000 team members nationwide.

We work with some of the UK’s largest fleets and insurance companies, supporting drivers that have been involved in road incidents through our contact centres in Halifax, Peterborough and Huddersfield.

We manage every step of the repair journey - repairing vehicles at our own Activate Accident Repair (AAR) body shops, as well as through a UK-wide network of trusted independent repair partners.

We also work with the UK’s largest vehicle manufacturers, supporting their approved repair programmes, and deliver innovative technology solutions to fleets, vehicle repair centres and dealerships.

Our purpose & values

Our purpose underpins everything we do: Make someone’s bad day better

Our values define how we work with our team members, customers and suppliers:

• Make it happen – Be accountable. Take the initiative, work fast, and do a great job.
• Strive for better – Be bold. Challenge the norm - make small improvements often.
• Win together – Be a team player. Win together, learn together, respect each other.