Senior Backend Engineer

About The Company ISR Recruitment Limited is a reputable and innovative recruitment agency specializing in connecting talented professionals with leading organizations across various industries. With a strong commitment to excellence, ISR Recruitment has established itself as a trusted partner for both clients and candidates, delivering tailored recruitment solutions that meet unique business needs. The company prides itself on its extensive network, industry expertise, and dedication to fostering long-term relationships, ensuring that both clients and candidates achieve their strategic goals. ISR Recruitment is passionate about supporting career growth and organizational success through its comprehensive recruitment services. About The Role ISR Recruitment is working with a leading global software organization to recruit an experienced Senior Backend Engineer to join its Product & Engineering team. This is an exceptional opportunity for a seasoned software engineer to contribute to the development of a next-generation B2B SaaS platform. The role involves shaping the architecture, engineering standards, and ongoing evolution of a highly scalable, secure, and multi-tenant product used by organizations worldwide. The successful candidate will play a pivotal role in designing and implementing backend solutions that support the company's innovative cloud-native SaaS offerings. The ideal candidate will have a proven track record in delivering B2B SaaS products, particularly within multi-tenant environments. They will bring a deep understanding of modern backend development practices, cloud deployment, and scalable architecture. This position offers remote working options within the UK and Ireland, providing flexibility and work-life balance for the right candidate. The role is suited for professionals who are passionate about building robust, secure, and efficient software solutions that make a tangible impact on global organizations. Qualifications The successful candidate will possess a minimum of 8 years' commercial software engineering experience, with a focus on backend development. Candidates should have extensive experience delivering B2B SaaS products in a professional environment, demonstrating a solid understanding of multi-tenant SaaS architectures. A proven history of career stability and progression within engineering teams is essential. Technical proficiency in C#, .NET Core, and modern .NET frameworks (preferably .NET 8 and/or .NET 10) is required. Candidates should have hands-on experience designing, building, and deploying production software within the Microsoft technology stack. Strong skills in developing RESTful APIs, backend services, relational databases, and SQL are necessary. Additionally, experience working with cloud platforms, particularly Microsoft Azure, is highly desirable. Knowledge of related tools and technologies such as Docker, Kubernetes, Azure Service Bus, and version control systems like Git/GitHub will be advantageous. Responsibilities As a Senior Backend Engineer, you will lead the design and development of the company's cloud-native SaaS platform. Your responsibilities will include: Designing, building, and maintaining scalable backend services, APIs, and reusable libraries that support the platform's functionality.Developing high-quality, clean, and testable code using C# and modern .NET technologies.Participating in architectural decisions to ensure the platform remains scalable, secure, and resilient.Creating RESTful APIs and backend services to be consumed by web and mobile applications.Building event-driven and asynchronous components utilizing technologies such as Azure Service Bus.Working with relational databases to develop efficient SQL queries and database schemas.Deploying and maintaining cloud-based applications within Microsoft Azure environment.Engaging in automated testing, conducting code reviews, and adhering to engineering best practices.Supporting continuous improvement initiatives, including refactoring and performance optimization.Collaborating within an Agile environment to deliver iterative enhancements and features.Translating functional and technical requirements into robust, production-ready software solutions.Mentoring junior engineers and contributing to the enhancement of engineering standards across the team. Benefits This role offers a competitive salary ranging from c£60,000 to £80,000 per year, depending on experience and qualifications. Employees will enjoy comprehensive company benefits, including flexible remote working arrangements within the UK and Ireland, enabling a healthy work-life balance. Additional benefits may include private healthcare, pension contributions, professional development opportunities, and a supportive team environment dedicated to innovation and growth. The organization fosters a culture of continuous learning and offers resources to help employees advance their careers within a dynamic and forward-thinking company. Equal Opportunity ISR Recruitment Limited is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, religion, gender, sexual orientation, age, disability, or any other protected characteristic. We believe that a diverse workforce enhances innovation, creativity, and overall organizational success. All qualified candidates are encouraged to apply and will be considered based on merit and experience.