Senior Software Developer (IoT / Cloud) Burnley Flexible Work from Home Up to £70,000 Benefits KO2s client are looking for an experienced Senior Software Developer to play a key role in designing and building scalable, cloud-native systems that power connected IoT devices. This is an exciting opportunity to work at the intersection of hardware and software-developing backend services that enable secure device communication, high-volume data ingestion, and the APIs that drive customer-facing applications. Youll be responsible for building and evolving the backend platform that supports large fleets of IoT devices, with a strong focus on scalability, reliability, and security. Working within a collaborative engineering environment, youll also contribute to architectural decisions and mentor other developers. Key Responsibilities: Design, develop, and maintain backend services for IoT platforms Build and optimise real-time data ingestion pipelines handling high-volume telemetry and events Develop secure, scalable RESTful and/or GraphQL APIs Architect cloud-native solutions using AWS services (IoT Core, Lambda, DynamoDB, API Gateway, etc.) Implement observability, reliability, and cost optimisation across cloud infrastructure Ensure robust IoT security practices, including secure device provisioning and communication Lead technical discussions, support code reviews, and mentor junior team members Collaborate with cross-functional teams including product, embedded, and data engineering Key Skills & Experience: Strong backend or platform engineering experience, ideally within IoT or distributed systems Deep knowledge of AWS Technologies (IoT Core, Lambda, DynamoDB, Kinesis, SQS, API Gateway) Proficiency in Python, Node.js, Go, or Java Experience with MQTT and event-driven architectures Proven track record of building scalable data ingestion pipelines Experience developing secure, high-performance APIs Solid understanding of microservices and cloud design patterns Desirable: Experience with edge/embedded integrations Familiarity with time-series databases Knowledge of digital twins or industrial IoT protocols Containerisation experience (Docker, Kubernetes/EKS) Any experience in a technical leadership or team leader role. This is a fantastic opportunity to join a forward-thinking team working on cutting-edge IoT solutions, with the chance to make a real impact on product direction and technical strategy. Apply today with an up-to-date CV and a member of the KO2 team will be in touch to progress your application.