Software Developer (.NET Core) Derbyshire (Hybrid – 1 day per week in the office) Competitive, dependent on experience 38 hours per week, 4 days per week, 8:00am – 6:00pm *Candidates must be within a 1-hour commute of Derbyshire, due to the weekly in-office requirement* Our client, a vibrant and growing technology company, is looking for an experienced Software Developer with strong .NET Core expertise to join their development team. This is an exciting opportunity to work on a wide range of technically challenging projects, including large-scale data processing systems, enterprise applications, mobile applications and cutting-edge machine learning solutions. You’ll be joining a collaborative, supportive and highly skilled team within a friendly, family-run environment. As a Software Developer, you will play a key role in the design, development and maintenance of complex software systems. You will work across backend and frontend technologies, support web and mobile applications, contribute to solution architecture and support junior developers where appropriate. Key Responsibilities Design, develop, and maintain large-scale backend systems using C# .NET / .NET Core Contribute to requirements analysis, system scoping, and solution architecture Build robust backend solutions to support web and mobile applications Collaborate closely with developers, stakeholders, and clients to solve complex technical challenges Integrate systems with external platforms such as Salesforce, Xero, and Microsoft Dynamics Support and mentor junior developers within the team Example Projects Real-time IoT systems communicating via GPRS Complex reporting and scheduling platforms Large-scale, data-driven systems Rich data analysis, machine learning, and AI solutions Backend integrations with CRM and financial systems Required Skills & Experience Strong commercial experience with C# .NET Core (essential) Proven experience working on large-scale systems and complex data processing LINQ and Entity Framework Experience working with large data sets Strong knowledge of GIT source control and JIRA Experience with requirements analysis and system scoping Bachelor’s Degree in Computer Science or a related field Ability to commute to Derbyshire one day per week Desirable Skills Frontend frameworks such as Angular or React Mobile app development (iOS / Android) Cloud hosting experience (AWS or Azure) API and Microservices architecture NoSQL databases (MongoDB, MongoDB Atlas) Kubernetes and Docker containerisation Agile development methodologies Personal Attributes Eager to learn and adopt new technologies A strong team player who can also work independently Excellent communication skills, with the ability to explain technical concepts clearly Willingness to support and mentor junior team members Why Apply? This is an excellent opportunity to join a small, highly skilled development team working on meaningful, real-world projects. Our client offers: A friendly, family-run working environment Exposure to varied and technically challenging projects Opportunities for professional development and learning new technologies A flexible hybrid working model EMA25