Contract C++ Developer

AND Digital

. Develop technical alarm conditions based on hardware and operating system telemetry .

Posted 9/19/2026contractLondon • United KingdomMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing modern C++17 applications on embedded Linux, with a strong focus on reliability, deterministic behavior, and safety-critical software development. Proficient in implementing fault management systems, logging functionalities, and adhering to regulated software development standards.

Highest-signal resume keywords

C++17 Application DevelopmentEmbedded Linux Systems IntegrationDeterministic Software DevelopmentSafety-Critical Software ExperienceRegulated Environment Compliance

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Applicant Tracking System Keywords

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Hard Skills

C++17MultithreadingLock-Free QueuesIPC TechnologiesUnit TestingCMakeCross-CompilationFixed-Capacity ContainersFault ManagementLogging Functionality

Soft Skills

CollaborationAttention to DetailProblem-Solving

Tools & Technologies

DockerGoogleTestOpenSSLNVIDIA JetsonYoctoCI/CD PipelinesSystemdD-BusTensorRTFlatBuffers

Certifications & Qualifications

IEC 62304ISO 13485

Industry Keywords

Safety-Critical SystemsMedical DevicesLifesciencesAlarm Management SystemsRegulated Software Development

Tech Stack

Tools & technologies

DockerLinuxPythonUnixC++

About the role

Key responsibilities & impact

Develop technical alarm conditions based on hardware and operating system telemetry
Implement patient sensor, signal quality and external monitoring alarms
Work with hardware alarm interfaces, including mute functionality, alarm-level verification and alarm telemetry
Build fault handling and recovery mechanisms
Develop power-on checks, hardware compatibility checks, GPU checks and system self-tests
Implement fail-safe states, fault management, watchdogs and system supervision
Support interrupted-session detection and recovery
Develop logging, audit logging and log rotation functionality
Develop storage interfaces supporting atomic and checksummed writes
Manage 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, service tools and device service handlers
Support software updates, confirmation and rollback
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
Work on a highly regulated, safety-critical medical technology product

Requirements

What you’ll need

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, including pre-allocated memory and fixed-capacity containers
Experience with ports-and-adapters / 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
Experience developing medical devices or other safety-critical systems (desirable)
Experience within regulated environments or lifesciences (desirable)
Highly proficient with AI (desirable)
Knowledge of IEC 62304, ISO 13485 or similar regulated software development standards (desirable)
Experience with medical alarm systems or other alarm and fault-management systems (desirable)
Understanding of IEC 60601-1-8 or equivalent safety standards (desirable)
Experience with state-machine-driven supervisors and fault-management systems (desirable)
Experience with NVIDIA Jetson, CUDA or GPU-accelerated processing (desirable)
Experience with Yocto and embedded Linux board-support packages (desirable)
Experience with systemd, sd_notify, D-Bus and journald (desirable)
Experience with OpenSSL, TensorRT or similar external technologies (desirable)
Experience using Docker for development environments (desirable)
Experience with GoogleTest, behaviour-driven testing or Gherkin (desirable)
Python experience for tooling and deployment scripts (desirable)
Experience contributing to software FMEA activities and implementing risk controls (desirable)

Benefits

Comp & perks

Equal opportunity employer committed to an inclusive workplace
Reasonable adjustments throughout the recruitment process where required