Principal Systems Software Engineer

Honeywell Aerospace; West of England; On-site; GBP 60,000 - 90,000; Full time

Job summary

Honeywell Aerospace in the United Kingdom is seeking an Application Software Engineer to guide embedded software development for propulsion controls within the Engine and Power Systems SBU. You will collaborate with product teams and senior leadership to drive architecture, verification, and certification efforts under DO-178C level A.

You will act as a technical authority, shaping software processes, risk mitigation, and cyber security considerations while influencing roadmaps for advanced

Qualifications

• BS degree in software/engineering with embedded systems experience.
• Expertise in DO-178C design assurance level A.
• Strong software/hardware integration and verification skills.

Responsibilities

• Provide expert guidance on embedded software architectures and engine control algorithms.
• Oversee SW/HW integration, debugging, and verification per ARP4754/DO-178C.
• Review design reviews and ensure proper execution.
• Assess safety and close Product Condition Reports with Product Integrity.
• Define cyber security design requirements and implications.

Skills

Embedded SW

Software Architecture

Safety Certification

Cybersecurity

Education

BSc in Software Engineering

Tools

DO-178C tooling

ARP4754 tools

Embedded toolchains

Job description

This posting is for an Application Software Engineer reporting directly to the Sr. Director of the Propulsion Control System within Engine and Power Systems Strategic Business Unit (SBU). You will work closely with product teams, Chief Technology Officer staff, and senior business leadership to guide the development of cutting-edge software technologies, products, and solutions across all of Honeywell Aerospace Engine and Power Systems SBU. In this role, you will be recognized as a leading technical authority on application software development for engine controls, focusing primarily on DO178C design assurance level A standards for embedded software. You will provide technical guidance in software architecture, software implementations, software / hardware integration, verification, automation, and certification / qualification. You will assist various teams on differentiating technology roadmap development, advanced and strategic product technology, process development, and expert oversight on risk identification and mitigation.,

• Provide expert technical guidance on embedded Software (SW) architectures, SW engine control algorithm development and implementation solutions, SW/HW integration/debug and SW verification in accordance with ARP4754/DO-178C certification processes
• Provide technical oversight/approval in internal and external Design Reviews and ensure that appropriate Design Reviews are conducted
• Ensure safety assessments are conducted and drive closure of Product Condition Report (PCRs) safety issues in conjunction with Product Integrity
• Review and approve Cyber security design requirements and implementation considerations
• Act as a technical spokesperson within Honeywell, customers and regulatory authorities
• Optimize, update, and/or create new SW processes as required. Key Skills
  Bachelor of Science in Software, Electrical, Aerospace, or Computer Science Engineering or related technical discipline
• Extensive experience in Embedded Software design, development, qualification, and field issue resolution for products in the scope of this position
• Proven track record of technical leadership and innovation.
• Strong understanding of engineering principles and product development processes.
• Experience with relevant technologies and tools in the engineering domain.
  Join a company that's reintroducing itself to the aviation community we've helped advance for more than a century. At Honeywell Aerospace (NASDAQ: HONA), we're launching as an independent, publicly traded aerospace and defense company built on a legacy of operational excellence and mission-focused execution.

Our new brand identity pairs that heritage with real momentum, as we build technology that helps pilots navigate with confidence, aircraft operate more efficiently, and operators stay ahead of change. With our systems on board 90% of the world's aircraft, your work here has reach that's rare to find anywhere else. Focusing on our customers, investing in innovation, and building a culture of accountability and performance is how we're shaping what comes next. Every horizon. Every mission. Every day., As aviation continues to evolve, we're also developing systems to support autonomous and supersonic platforms, bringing the same focus on safety and efficiency to the next era of flight. With approximately 36,000 employees worldwide and net sales of $17.4B in 2025, Honeywell Aerospace is one of the largest dedicated aerospace companies in the world. Explore our businesses: https://www.honeywellaerospace.com Engines & Power Systems provides the propulsion, auxiliary power and electrical systems that keep aircraft flying. With engines across roughly 120 aircraft types and more than 47,000 APUs in service today, we support operators across commercial and defense markets - backed by an aftermarket network built for the long service life of every platform we power.

• Opportunity to work on cutting-edge technologies with global impact.
• A collaborative and innovative environment within a world-leading technology company.
• Professional development and career growth opportunities.

Honeywell Aerospace products and services are found on aircraft across commercial aviation, defense and space - from engines and cockpit electronics to cabin systems, mechanical components and connectivity solutions. Our technology helps operators fly more safely, reduce fuel consumption, improve on-time performance and deliver a better experience for the people on board.