Contract C++ Developer (Embedded Linux)

Location: London, England, United Kingdom; hybrid with 2 days onsite in Kings Cross

Company

hirify.global helps organisations address technology challenges by combining human expertise, emerging technology, and AI.

What you will do

• Own a self-contained area of a safety-critical embedded medical technology application from design through merged, tested, and documented code.
• Develop alarm conditions, hardware and patient monitoring alarms, mute functionality, telemetry, and fault recovery mechanisms.
• Build start-up checks, watchdog and supervision mechanisms, fail-safe states, logging, audit logging, and session recovery.
• Develop patient-data persistence, checksummed and atomic storage, data packaging, queueing, retention, retrieval, and GUI interfaces.
• Manage patient sensor and session lifecycles, controlled power-down, USB export, service handlers, software updates, and rollback.
• Collaborate with the Software Architect and engineers responsible for surrounding components.

Requirements

• Strong experience developing modern C++17 applications on embedded Linux, including RAII, multithreading, atomics, and bounded or lock-free queues.
• Experience building deterministic, reliable, low-allocation or allocation-free software with pre-allocated memory and fixed-capacity containers.
• Knowledge of ports-and-adapters or hexagonal architecture, interfaces, dependency injection, Linux services, watchdogs, and system-level fault management.
• Experience with IPC and serialization technologies such as FlatBuffers, Unix-domain sockets, or named pipes, plus CMake, automated testing, and CI/CD.
• Experience with cross-compilation, preferably for aarch64 platforms, unit testing, code coverage, quality gates, peer review, and traceable engineering processes.
• Experience developing safety-critical, mission-critical, or highly regulated software.

Nice to have

• Experience with medical devices, medical alarm systems, IEC 62304, ISO 13485, IEC 60601-1-8, or software FMEA.
• Experience with NVIDIA Jetson, CUDA, GPU processing, Yocto, embedded Linux board-support packages, or state-machine-driven supervisors.
• Knowledge of systemd, D-Bus, journald, OpenSSL, TensorRT, Docker, GoogleTest, behavior-driven testing, Gherkin, or Python tooling.

Culture & Benefits

• Immediate-start contract with a 12-week duration.
• Work within an in-house backend engineering team on a regulated medical technology product.
• Engineering environment includes C++17, Embedded Linux, NVIDIA Jetson, Yocto, CMake, Conan, Docker, GoogleTest, FlatBuffers, D-Bus, systemd, SonarQube, MISRA C++ 2023, and target-hardware testing.
• Inclusive equal-opportunity workplace with reasonable adjustments available throughout the recruitment process.