c++ developer for medical technology

AND Digital helps organisations navigate the future of technology by combining human expertise, emerging technology and AI to deliver better outcomes. The company works with clients to solve complex challenges, build high-performing teams and create lasting capability.

• Develop technical alarm conditions based on hardware and operating system telemetry;
• Implement patient sensor, signal quality and external monitoring alarms;
• Build fault handling and recovery mechanisms;
• Develop power-on checks, system self-tests, fail-safe states and fault management;
• Integrate watchdog and system supervision mechanisms;
• Support interrupted-session detection and recovery;
• Develop logging, audit logging and log rotation functionality;
• Develop storage interfaces with atomic and checksummed writes;
• Manage patient data reading, deletion and session listing across fixed storage partitions;
• Build patient-data packaging, queueing, flushing, retention and retrieval functionality;
• Support data back-fill and historic data presentation;
• Develop versioned interfaces between backend data and the GUI;
• Manage patient sensor and session lifecycles;
• Support session metadata, recovery and graceful shutdown;
• Develop power-button handling and controlled power-down functionality;
• Support USB data export, software updates, confirmation and rollback;
• Work with service tools and device service handlers;
• Implement log extraction and audit logging;
• Own a self-contained application area from initial design through merged, tested and documented code;
• Collaborate with the Software Architect and engineers responsible for surrounding components.

• Strong experience developing modern C++17 applications on embedded Linux;
• Strong understanding of RAII, fixed-width types, std::atomic, multithreading, and lock-free or bounded queues;
• Experience developing software where deterministic behaviour and reliability are critical;
• Experience with allocation-free or low-allocation runtime environments, pre-allocated memory and fixed-capacity containers;
• Experience with ports-and-adapters or hexagonal architecture, interfaces and dependency injection;
• Strong Linux systems integration experience, including services, watchdogs and system-level fault management;
• Experience with IPC and serialisation technologies such as FlatBuffers, Unix-domain sockets or named pipes;
• Experience with CMake, automated testing and CI/CD pipelines;
• Experience with cross-compilation, ideally for aarch64 platforms;
• Strong experience with unit testing, code coverage and quality gates;
• Comfortable working within formal engineering processes, including peer review, traceable changes and documented design decisions;
• Experience working on safety-critical, mission-critical or highly regulated software;
• Nice to have: experience developing medical devices or other safety-critical systems, knowledge of IEC 62304, ISO 13485 or similar regulated software development standards, experience with medical alarm systems or other alarm and fault-management systems, understanding of IEC 60601-1-8 or equivalent safety standards, experience with state-machine-driven supervisors and fault-management systems, experience with NVIDIA Jetson, CUDA or GPU-accelerated processing, experience with Yocto and embedded Linux board-support packages, experience with systemd, sd_notify, D-Bus and journald, experience with OpenSSL, TensorRT or similar external technologies, experience using Docker for development environments, experience with GoogleTest, behaviour-driven testing or Gherkin, Python experience for tooling and deployment scripts, experience contributing to software FMEA activities and implementing risk controls.

• Contract role with an immediate start and a 12-week contract;
• 2 To 3 days onsite in Kings Cross;
• Equal opportunity employer with reasonable adjustments available throughout the recruitment process.