ALTEN is hiring a Linux Software Engineer

As a Backend Software Engineer you will join our team in London and be responsible for designing, building, and supporting high‑reliability software platforms used to supervise and control complex, remote systems. The role focuses on developing core operational software, supporting data flows, and creating automation that improves efficiency, robustness, and repeatability. You will work across multiple operational subsystems, contributing directly to the successful execution of live, high‑stakes activities in a highly regulated technical environment. Location: London On Site: 2x a month Clearance: SC clearable Experience Level: Mid - Senior Key Responsibilities: Design, enhance, and support a central operational control platform, ensuring it meets performance, reliability, and operational requirements. Develop new backend software components using Java and Python to support monitoring, control, and data management capabilities. Contribute to the development of operational subsystems, including: File transfer and management workflows for large or critical datasets Automated ingestion, storage, and retrieval of structured and unstructured data Workflow automation to support data processing, analysis, and control preparation Collaborate closely with systems and requirements engineers to ensure traceability, consistency, and sound technical design. Diagnose, troubleshoot, and optimise critical services to ensure readiness for live operations. Produce clear documentation, configuration artefacts, and operational procedures to support long‑term maintainability. Participate in technical design reviews, implementation discussions, and operational readiness assessments.