Principal Software Engineer (Hybrid) – Rushmoor, United Kingdom. AALTO, an Airbus subsidiary and global leader in Stratospace, is seeking an experienced, hands-on Principal Software Engineer to lead a senior technical role in a multidisciplinary team developing safety-critical aircraft software. You will design, develop, verify and maintain embedded software primarily in C, with C++ and Python as part of the toolkit, spanning the full software lifecycle. Collaborate with systems, hardware, test, certification and flight operations teams to solve aircraft-level problems and deliver high-integrity software in demanding real-world environments. This senior individual contributor role emphasizes deep technical work, sound engineering judgment and mentoring others. Responsibilities include designing, developing, testing and maintaining embedded software for airborne systems; contributing across requirements, architecture, detailed design, implementation, integration, verification and certification; leading architecture discussions and reviews; supporting software integration, debugging and process improvement; providing technical guidance and mentoring to the team; evaluating new tools and technologies to improve quality and productivity. Requirements include about 10+ years of hands-on software engineering experience with embedded or real-time systems; experience taking airborne software through the DO-178C lifecycle and supporting aircraft certification; strong C skills with practical C++ and Python experience; understanding of software architecture, debugging and verification

Principal Software Engineer (Hybrid) – Rushmoor, United Kingdom. AALTO, an Airbus subsidiary and global leader in Stratospace, is seeking an experienced, hands-on Principal Software Engineer to lead a senior technical role in a multidisciplinary team developing safety-critical aircraft software. You will design, develop, verify and maintain embedded software primarily in C, with C++ and Python as part of the toolkit, spanning the full software lifecycle. Collaborate with systems, hardware, test, certification and flight operations teams to solve aircraft-level problems and deliver high-integrity software in demanding real-world environments. This senior individual contributor role emphasizes deep technical work, sound engineering judgment and mentoring others. Responsibilities include designing, developing, testing and maintaining embedded software for airborne systems; contributing across requirements, architecture, detailed design, implementation, integration, verification and certification; leading architecture discussions and reviews; supporting software integration, debugging and process improvement; providing technical guidance and mentoring to the team; evaluating new tools and technologies to improve quality and productivity. Requirements include about 10+ years of hands-on software engineering experience with embedded or real-time systems; experience taking airborne software through the DO-178C lifecycle and supporting aircraft certification; strong C skills with practical C++ and Python experience; understanding of software architecture, debugging and verification