Senior Software Engineer We're currently working with a growing SaaS company based in Leeds that are looking for a Senior Software Engineer skilled with C# ASP.NET, Angular, and SQL. This role will naturally grow in to a lead Engineer position as the team grows. You will be working to develop and build their new payroll project, which will be rolling out nationally, and then internationally. This role is based in Leeds, and it will require you to be onsite a minimum of two days per week. Essential Experience: Professional software engineering experience (typically 5 years) using C# / ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8). Significant understanding and practical experience with relational databases (MySQL /PostgreSQL preferred). Expertise in version control systems (Git) and branching strategies (Gitflow). Familiarity with project management methodologies and frameworks and experience with Agile project management tools (Jira preferred). Demonstrable experience in driving process improvements, implementing testing strategies (Unit, Integration, E2E), and improving code quality. Experience building RESTful APIs and microservices that can handle high-volume, time-sensitive data with robust error handling and data integrity Desirable: Understanding of payroll processing complexities, tax calculations, compliance requirements, and integration with HR systems Experience implementing or managing CI/CD pipelines (e.g., GitHub Actions, Azure DevOps). Experience with automated testing tools like Selenium or Playwright. Familiarity with containerisation technologies (e.g., Docker). Experience with cloud platforms (e.g., AWS, Azure). Benefits: Competitive Base Salary Hybrid Working Private Healthcare 33 Days Holiday 37.5 Hour work weeks - flexi-hours Great career progression This is a great opportunity for a Senior Software Engineer skilled with C# .NET and Angular, to join a great company offering an incredible benefits package, with the opportunity for further career progression. Please apply for immediate consideration. Many thanks, Iona Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.