Job title: Senior Software Engineer Location: Full Remote (Very occasional travel to offices in Cheshire) Type: Contract / Outside IR35 / 6 months initial duration possible renewals About the Role We’re looking for Senior Software Engineers to join our client's dynamic Engineering team and play a key role in building high-quality, scalable software solutions. As a senior member of the team, you’ll take ownership of full-stack development, contribute to software architecture, drive engineering best practices, and mentor junior team members. You’ll work closely with Product Owners, Architects, and DevOps to ensure delivery excellence across a diverse range of projects. What You'll Be Doing Software Development Build and maintain applications using C#, .NET Core, .NET 4.x, and React.js Develop robust frontend solutions using ASP.Net MVC, HTML5, CSS, and Vue.js Design and implement RESTful APIs and Web APIs following best practices Use SQL Server, Entity Framework, and SQL for efficient data management Apply design patterns like OOP, SOLID, and Clean Code to write scalable code Engineering & Architecture Deliver high- and low-level estimations for projects Ensure software quality through unit and integration testing Perform code reviews and participate in pair programming Architect scalable, secure systems, including OAuth and SSO integrations Cloud & DevOps Deploy and manage apps in Microsoft Azure using services like Blob Storage, Functions, and Service Bus Use Git for version control and Azure DevOps for CI/CD with YAML pipelines Collaboration & Communication Work cross-functionally with Product Owners, Architects, and other teams Share progress and blockers proactively Communicate technical concepts clearly to both technical and non-technical audiences Leadership & Mentoring Mentor junior developers and share knowledge through team sessions and tech talks Contribute to community events and guilds to enhance engineering culture Help in identifying and resolving technical debt Project Delivery Lead delivery of large-scale features with minimal support Accurately estimate and manage work against timelines Participate in Agile ceremonies and planning What We’re Looking For Must-Have Experience: 5 years in software engineering roles Proficient in C#, .NET Core, React.js, and SQL Server Strong background in building scalable backend systems and modern frontends Experience with Azure cloud services and CI/CD pipelines Preferred: Experience with Agile methodologies Prior team mentoring experience Familiarity with OAuth, SSO, and application security