Lead Software Engineer

Agilis Recruitment; Cheltenham; Hybrid; GBP 70,000 - 75,000; Full time

Job summary

Agilis Recruitment is seeking a Lead Software Engineer to spearhead backend development using C# and .NET, with AWS and API-driven microservices. You will mentor engineers, review code, and contribute to scalable platform evolution.

The role combines on-site Cheltenham Spa presence with remote work options, offering a salary of £70k-£75k DOE and strong opportunities to shape high-volume systems.

Qualifications

• Commercial software engineering experience with C# and .NET.
• Senior/Lead engineer with technical leadership experience.
• Experience building backend services and REST APIs.
• Strong understanding of event-driven, asynchronous, or service-based architectures.
• Experience with relational databases, preferably PostgreSQL.
• Experience with automated testing, source control and code reviews.
• Ability to translate requirements into technical tasks.
• Practical experience using AI-assisted development tools.

Responsibilities

• Act as a Technical lead, mentoring other engineers and performing code reviews.
• Build and maintain production software using C# and .NET.
• Develop backend services, APIs and event-driven applications.
• Work with PostgreSQL and AWS cloud technologies.
• Contribute to microservices, integrations and distributed systems.
• Support UI development using Blazor where required.
• Write automated tests and participate in peer code reviews.
• Troubleshoot issues and support production systems.
• Translate requirements into technical tasks and contribute to delivery estimates.
• Use AI-assisted development tools, including GitHub Copilot, as part of the development process.

Skills

C# & .NET

Senior/Lead engineer

Backend services

REST APIs

Event-driven architecture

PostgreSQL

Automated testing

Source control

AI-assisted tools

Tools

AWS

Docker

Blazor

MudBlazor

CI/CD

GitHub Copilot

Job description

LEAD SOFTWARE ENGINEER – C# / .NET

Cheltenham Spa / Remote

£70k - £75k DOE

Agilis Recruitment is proud to be partnering with an innovative global technology organisation at the forefront of developing sophisticated software platforms used to power complex, high-volume operations. With continued growth across their Engineering function, this is an opportunity to join a forward-thinking team and play a key role in shaping the next generation of their core platform.

You’ll be working on modern, scalable software across C#/.NET, AWS, APIs, event-driven architecture and distributed systems, with genuine scope to influence how the platform evolves. The business is also embracing AI-assisted engineering, giving developers access to modern tools and approaches to build better software, faster.

Responsibilities

• Act as a Technical lead, Mentoring other Engineers and performing code Reviews
• Build and maintain production software using C# and .NET.
• Develop backend services, APIs and event-driven applications.
• Work with PostgreSQL and AWS cloud technologies.
• Contribute to microservices, integrations and distributed systems.
• Support UI development using Blazor where required.
• Write automated tests and participate in peer code reviews.
• Troubleshoot issues and support production systems.
• Translate requirements into technical tasks and contribute to delivery estimates.
• Use AI-assisted development tools, including GitHub Copilot, as part of the development process.

Qualifications

• Commercial Software Engineering experience with C# and .NET
• Experience working as a Senior/Lead engineer acting as a technical Lead
• Experience building backend services and REST APIs.
• Understanding of event-driven, asynchronous or service-based architectures.
• Experience with relational databases, preferably PostgreSQL.
• Experience with automated testing, source control and code reviews.
• Ability to work from technical documentation and requirements.
• Practical experience using AI-assisted development tools.

Required Skills

• Microservices.
• AWS Lambda, ECS or EC2.
• Blazor / MudBlazor.
• CI/CD.
• Docker.
• Observability, logging and monitoring.
• Secure coding and resilient application development.

We value diversity and equal opportunity. All applicants will receive consideration for employment without regard to race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, disability, age, or veteran status.

If you do not hear back within 5 working days of your application, please assume you have been unsuccessful in this instance.