Principal Software Engineer

Join AALTO in Farnborough as Principal Software Engineer, developing safety-critical embedded software that powers Zephyr and unlocks the potential of Stratospace. AALTO, a global leader in Stratospace. Based in Farnborough, AALTO is an Airbus subsidiary that manufactures, operates, and delivers services with its solar-powered, stratospheric platform: Zephyr. Zephyr's persistence enables continuous flight for months at a time. Its current flight-time record of over 67 days in the stratosphere. From above 60,000+ft, or 20km above ground, AALTO can deliver several applications including direct-to-device connectivity and high-resolution Earth observation. AALTO operates in a new operational layer between most of air traffic and low-Earth orbit, Stratospace. This is where high-altitude platforms led by Zephyr deliver services to commercial and government partners. We can help monitor environments, observe borders, track natural disasters and connect unconnected communities. Join us as we create a new domain of aerospace: Stratospace. You'll be part of a highly-skilled, innovative and passionate group of people – Team AALTO. Together, we can Unlock Stratospace.

• Design, develop, test and maintain embedded software for airborne systems, primarily using C, with C++ and Python where appropriate.
• Contribute across requirements, architecture, detailed design, implementation, integration, verification and certification support.
• Work closely with systems, hardware, test and flight operations teams to diagnose issues, make sound technical decisions and deliver aircraft-level outcomes.
• Lead and contribute to software architecture discussions, technical reviews, code reviews and engineering best practice.
• Support software integration, debugging, test automation and continuous improvement of development processes.
• Provide technical guidance and mentoring to other engineers, helping the team build capability and confidence.
• Assess new tools, methods and technologies where they can improve quality, reliability or productivity.

• Significant hands-on software engineering experience, ideally around 10 years or more, with a strong background in embedded or real-time systems.
• Experience taking airborne software through the full DO-178C lifecycle and supporting aircraft certification activities.
• Strong C programming skills, with practical experience in C++ and Python.
• Sound understanding of software architecture, design trade-offs, debugging and verification in safety-critical or highly regulated environments.
• Experience working with multidisciplinary engineering teams and translating complex technical issues into clear options and decisions.
• A collaborative, pragmatic approach, with the ability to mentor others without losing sight of hands-on delivery.
• Familiarity with related standards and guidance such as DO-330, DO-331, DO-332, DO-333, ARP4754A/B, DO-278, DEF STAN 00-55 or DEF STAN 00-56 would be beneficial.

• Rewarding Excellence: Benefit from our short-term incentive plan that rewards your hard work and dedication.
• Enjoy Your Time Off: Benefit from 25 days of holiday to relax and recharge.
• Stay Healthy: We've got your health covered with private medical insurance, along with dental and optical cash back.
• Secure Your Future: Take advantage of our personal pension plan to ensure a comfortable retirement.
• Peace of Mind: Our income protection and life assurance schemes are there to support you when you need it most.
• Getting around: Drive the latest vehicles with our discounted salary sacrifice scheme.
• We Care About You: Our employee assistance programme is always available to provide the support you need.
• Perks Galore: Enjoy a range of employee discounts via Perkbox, from household goods to travel!

- Hours: 37 – Hybrid - Founded in 2022 - Co-workers: 200+ - Does this opportunity excite you but you're not 100% sure if you meet all the requirements for the role? Or are you concerned that ‘normal' office hours aren't possible given your personal circumstances? Whilst we can't accommodate every flexible working request, we'll try to find a practical solution. So why not engage with us and find out more about this role? - If this role isn't quite what you're looking for but are keen to be contacted about opportunities at AALTO, you can register your details here: https://careers.aaltohaps.com/connect - AALTO is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status or pregnancy and maternity.