Systems developer

Salary: £52,000 - 92,000 per year Requirements: Minimum 5 years experience in software development Strong experience with the Microsoft stack, including .NET, C# and SQL Server Strong experience working with JSON Experience working with APIs and system integration Experience with cloud platforms, preferably Azure Strong problem-solving ability and a practical mindset Experience with IoT technologies such as MQTT and Modbus is desirable Familiarity with Node-RED or similar tools is desirable Experience with Grafana or data visualisation platforms is desirable Understanding of networking concepts such as VPNs, routing and gateways is desirable Must have the right to work in the UK Responsibilities: Develop software for IoT edge devices using .NET and Node-RED Design and develop database architectures and data models Build and enhance IoT control systems using MQTT and Modbus Develop and improve customer-facing SCADA and data visualisation platforms Create automated provisioning, deployment and testing systems via APIs and device automation Build reporting systems for customers, devices and internal operations Improve data export, processing and integration pipelines Contribute to ongoing improvements in system performance and efficiency Support and maintain Azure-based environments Manage and optimise SQL databases Maintain cloud and on-premise virtual machines Support mobile gateway infrastructure and VPN connectivity Manage SIM-based connectivity across deployed devices Maintain and monitor MQTT messaging infrastructure Support and enhance Grafana dashboards and customer reporting tools Technologies: Azure C# Cloud CTO Grafana IoT Support JSON Mobile MQTT PLC SQL VPN ASP.NET NodeJS Network More: We are UK Networks Services (UKNS), an engineering company helping drive the UKs transition to a smarter, more flexible electricity system. Our work spans technical grid consulting and smart grid control systems, with a strong focus on PLC-based control, SCADA, metering, protection and real-time data platforms for grid-scale and distributed energy projects. As a Systems Developer, you will work closely with our CTO and engineering teams to build and enhance the software and data systems behind our smart grid solutions, gaining exposure to cloud, IoT and systems engineering beyond a typical software role. We offer a salary of £45,000 to £55,000 depending on experience, a company bonus scheme, enhanced pension contribution, death in service benefit, salary sacrifice schemes, 25 days annual leave plus local bank holidays, volunteer days, support for local clubs or charities, paid professional registration fees and on-site parking. We are a fair and equal-opportunity employer committed to diversity, inclusion and an environment where everyone feels respected and able to do their best. last updated 25 week of 2026