Software Engineer, C, DO-178 Experience

Expleo Group

Software Engineer developing C embedded software for aerospace systems at Expleo. Focus on DO-178 compliance for safety-critical aerospace systems in a hybrid working environment.

Posted 6/30/2026full-timeBristol • 🇬🇧 United KingdomMid-LevelSeniorWebsite

About the role

Key responsibilities & impact

Develop embedded software in C for aerospace systems, following DO-178 development processes and standards
Produce and maintain software requirements, architecture, and design artefacts in line with certification expectations
Participate in all stages of the software development lifecycle, including requirements, design, coding, integration, and verification
Perform software verification and validation activities, including unit testing, integration testing, and system-level testing
Ensure full requirements traceability between software requirements, design, code, and test artefacts
Support development of verification strategies and test cases, ensuring compliance with DO-178 objectives
Collaborate with systems, safety, and hardware teams to ensure correct system integration and behaviour
Support certification activities, including preparation of compliance evidence and interaction with certification authorities
Identify and resolve software defects and anomalies, ensuring robust and reliable system performance
Contribute to configuration management and change control, ensuring traceability and integrity of software baselines
Participate in peer reviews, design reviews, and code reviews, ensuring adherence to quality and safety standards.

Requirements

What you’ll need

Bachelor’s or Master’s degree in Aerospace Engineering, Mechanical Engineering, or related field.
Chartered engineer or working towards chartered status within a recognised and relevant professional body.
Applications are invited from candidates who may hold HNC/HND in a relevant engineering discipline in concert with significant and demonstrable subject matter expertise in the system domain
Strong proficiency in C programming for embedded systems
Experience with DO-178B/C processes, including software lifecycle data and compliance objectives
Understanding of requirements-based development and traceability
Experience with software verification and validation, including unit and integration testing
Knowledge of real-time systems and embedded architectures
Experience with configuration management and version control tools
Strong problem-solving and debugging skills
Ability to produce clear, structured technical documentation
Strong communication skills and ability to work in multidisciplinary teams.

Benefits

Comp & perks

Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges
We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects
Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
Competitive company benefits

ATS Keywords

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Hard Skills & Tools

Embedded Software DevelopmentSoftware RequirementsSoftware ArchitectureUnit TestingIntegration TestingSystem-Level TestingTraceabilityDebuggingTechnical Documentation

Soft Skills

Problem-SolvingCommunicationCollaboration

Certifications

Bachelor’s Degree In Aerospace EngineeringChartered Engineer Status