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
WHJS1_NI
”, “datePosted”: “2026-05-17”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Expleo UK Limited”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__435571596__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=936” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “Belfast” } } }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
WHJS1_NI
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