Overview Expleo is seeking Software Engineers to join our growing Belfast team, delivering high-integrity engineering solutions across a range of complex and safety-critical domains. This role is ideally suited to candidates with experience in safety-critical or defence environments, though we also welcome strong software engineers from non-safety-critical backgrounds who are motivated to transition into this space through structured training and mentorship. Responsibilities As a Software Engineer at Expleo, you will work on the design, development, testing, and integration of software systems used in regulated and high-assurance environments. You will contribute to the delivery of robust, secure, and reliable software solutions, often within defence, aerospace, or other safety-critical industries. While prior safety-critical experience is highly desirable, we provide comprehensive training and support for engineers looking to develop expertise in standards-driven development environments. Design, implement, and test high-quality software solutions in line with project and regulatory requirements Work within structured development processes (e.g. requirements traceability, verification & validation) Collaborate with systems engineers, test engineers, and stakeholders across multidisciplinary teams Contribute to software design documentation and technical specifications Participate in code reviews and support continuous improvement of engineering practices Ensure compliance with relevant safety, security, and quality standards where applicable Support integration and validation activities in lab or simulated environments Qualifications Candidates without direct safety-critical experience are encouraged to apply. Expleo provides: Structured onboarding into safety-critical engineering practices Training in relevant industry standards and compliance processes Mentorship from experienced engineers within regulated domains Opportunities to work on progressively complex and high-assurance systems Essential skills Strong understanding of software engineering principles and lifecycle development Good problem-solving skills and attention to detail Ability to work effectively within a team and communicate technical concepts clearly Desired skills Background in safety-critical, defence, aerospace, automotive, rail, or other regulated industries Familiarity with standards such as DO-178C, ISO 26262, IEC 61508, or similar Knowledge of embedded systems or real-time software development Experience Background in safety-critical, defence, aerospace, automotive, rail, or other regulated industries Familiarity with standards such as DO-178C, ISO 26262, IEC 61508, or similar Experience with requirements management and traceability tools Knowledge of embedded systems or real-time software development Experience with configuration management tools (e.g. Git, SVN) Experience with requirements management and traceability tools Experience in software development using languages such as C, C++, Java, or similar Experience working in structured development environments (Agile, V-Model, or similar) Benefits 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 such as medical and dental insurance, pension, life assurance, employee wellbeingprogramme, sports and social events, birthday hampers and much more!?? Always working as one team, our people are not afraid to think big and challenge the status quo? As a Disability Confident Committed Employer we have committed to: Ensure our recruitment process is inclusive and accessible Communicating and promoting vacancies Offering an interview to disabled people who meet the minimum criteria for the job Anticipating and providing reasonable adjustments as required Supporting any existing employee who acquires a disability or long term health condition, enabling them to stay in work at least one activity that will make a difference for disabled people We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age. We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive
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