Lead Software Engineer, Principle Developer, Terraform, AZURE, C# 100% Remote UK Inside IR35

Job Title: Senior .NET Developer (12-Month Contract)Location: 100% RemoteInside IR35We are looking for an experienced and talented Senior .NET Developer to join our dynamic development team on a 12-month contract with the potential for extension. As a Senior .NET Developer, you will play a crucial role in creating high-quality, scalable, and resilient solutions while mentoring junior team members and supporting existing initiatives.Responsibilities:Create and adapt new C# / .NET Core services to meet evolving business requirements.Mentor and coach existing team members through pair programming, peer reviews, and team talks, helping them improve their C# / .NET Core skills.Support and enhance current systems and initiatives during office hours, ensuring that service level objectives are met.Maintain a strong focus on quality, reusability, clean architectures, security, and resilience across the full application lifecycle.Collaborate with the Lead Developer, Delivery Manager, and Product Owner to design service improvements and new feature additions.Key Essentials:3+ years of experience in a senior software development role at the enterprise level with a proven track record of successful project delivery.Experience mentoring junior developers and being an active member of an agile and self-improving team.Strong diagnostic skills and experience providing levels of support when issues arise.Extensive experience (5+ years) with C# and .NET Core.Deep understanding of Object-Oriented (OO) concepts and SOLID design principles.Proven experience developing in Microsoft Azure and using Terraform.Strong knowledge of SQL and database design.Experience in building extensive unit and integration tests, ideally following TDD or BDD approaches.Proficiency in scripting languages such as PowerShell is a nice-to-have.Desirable Skills:Experience working with distributed and hybrid teams.Ability to effectively communicate complex technical concepts in non-technical terms to stakeholders.Familiarity with modern security frameworks like OWASP and SANS25.Experience with Continuous Delivery and Automated Deployment using tools like Azure DevOps.