We are working with a well‑established UK engineering business that designs and delivers complex, real‑world software systems used in safety‑critical environments. This is a senior‑level role for an experienced C++ engineer who enjoys owning work from early design through to delivery and verification, and who values engineering rigour over quick fixes. The Senior Software Engineer role You will be responsible for designing, developing, testing and maintaining software that supports advanced engineering products. The role covers the full development lifecycle and includes working closely with other engineers, stakeholders and external partners. You will also support and mentor more junior members of the team. Senior Software Engineer essential requirements * Strong commercial experience with C++ on windows * Visual Studio * Experience delivering software across the full development lifecycle * Good understanding of software design, testing and verification * Confident written and verbal communication skills Senior Software Engineer desirable * GUI / UX or HCI experience * Scripting languages such as Python or PowerShell * Background in regulated, defence or safety‑critical environments Package / details * Job title: Senior Software Engineer * Location: North London * Working pattern: Hybrid (3 days onsite, 2 days remote) * Salary: £55-70k