We are seeking a highly experienced Senior Software Engineer with professional experience to join our team delivering large-scale, distributed, and safety-critical software systems. This role is ideal for an engineer who thrives in complex environments, values engineering rigour, and enjoys working across the full software lifecycle. You will play a key role in the design, development, integration, and assurance of high-integrity software, working closely with architects, project management, and wider engineering teams to ensure delivery against cost, quality, and schedule.