Senior Embedded C++ Engineer
ALTEN
Company Description
ALTEN
is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation. Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today. Join us and start building tomorrow’s world today! Job Description
Join our team as a
Senior Embedded Software Engineer
and contribute to the development of
mission‑critical embedded software
used within defence and other highly regulated engineering environments. You will work on complex real‑time systems where
software robustness, determinism, and safety assurance
are essential. This role offers the opportunity to apply deep
embedded C++ expertise
in high‑integrity programmes, supporting the delivery of reliable software solutions within demanding, process‑driven environments. Location:
London
On-site:
4 days per week
Seniority:
Senior (8+ years’ experience)
Clearance:
Candidates must be willing and eligible to obtain SC clearance. Key Responsibilities Design, develop, and maintain
embedded C++ software
for real‑time, mission‑critical systems Contribute to development within
safety‑regulated environments
, following high‑integrity software practices Develop and integrate
low‑level software components
and system interfaces Support
unit, integration, and system‑level testing
to ensure deterministic and reliable behaviour Collaborate with
systems, electronics, and test engineers
to integrate software into complex platforms Produce
clear and traceable technical documentation
suitable for regulated engineering environments Qualifications
Required Skills Strong experience with
embedded C++
(C++11/14/17 or later) Proven background delivering software in
defence, safety‑critical, or regulated environments Solid understanding of
real‑time software constraints
and deterministic behaviour Experience contributing to
verification, validation, and requirements traceability
activities Familiarity with
configuration management and development lifecycle tooling Strong debugging and problem‑solving ability within complex systems Soft Skills & Collaboration Clear and confident communicator across multi‑disciplinary teams Detail‑oriented, quality‑driven mindset Strong ownership of technical delivery and accountability Comfortable operating in
process‑heavy, high‑assurance programmes Required Qualifications Bachelor’s or Master’s degree
in Software Engineering, Computer Science, or related discipline, or a relevant
technical military background
with equivalent hands‑on experience. Candidates must be eligible to hold UK
SC security clearance
. Desirable Skills Exposure to
safety‑critical standards
such as
DO‑178
or equivalent Experience with
Ada
within high‑integrity or regulated systems Knowledge of
MISRA C/C++
or secure coding practices Familiarity with
automated testing, static analysis, or CI/CD pipelines Additional Information
Why join us? We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies. At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals. Join a passionate team and help build tomorrow, today. In short you get: A personalised career path and a rewarding management style A huge diversity of engineering projects and industries Private Medical Insurance Cycle & Tech Scheme Employee assistance programme Life insurance & Pension Scheme Social atmosphere, regular gatherings & team buildings Flexible way of working (role dependent) We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes. ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know. This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview. Contract Type: PermanentRegion: London Compensation: GBP 40000 - GBP 60000 - yearly
ALTEN
is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation. Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today. Join us and start building tomorrow’s world today! Job Description
Join our team as a
Senior Embedded Software Engineer
and contribute to the development of
mission‑critical embedded software
used within defence and other highly regulated engineering environments. You will work on complex real‑time systems where
software robustness, determinism, and safety assurance
are essential. This role offers the opportunity to apply deep
embedded C++ expertise
in high‑integrity programmes, supporting the delivery of reliable software solutions within demanding, process‑driven environments. Location:
London
On-site:
4 days per week
Seniority:
Senior (8+ years’ experience)
Clearance:
Candidates must be willing and eligible to obtain SC clearance. Key Responsibilities Design, develop, and maintain
embedded C++ software
for real‑time, mission‑critical systems Contribute to development within
safety‑regulated environments
, following high‑integrity software practices Develop and integrate
low‑level software components
and system interfaces Support
unit, integration, and system‑level testing
to ensure deterministic and reliable behaviour Collaborate with
systems, electronics, and test engineers
to integrate software into complex platforms Produce
clear and traceable technical documentation
suitable for regulated engineering environments Qualifications
Required Skills Strong experience with
embedded C++
(C++11/14/17 or later) Proven background delivering software in
defence, safety‑critical, or regulated environments Solid understanding of
real‑time software constraints
and deterministic behaviour Experience contributing to
verification, validation, and requirements traceability
activities Familiarity with
configuration management and development lifecycle tooling Strong debugging and problem‑solving ability within complex systems Soft Skills & Collaboration Clear and confident communicator across multi‑disciplinary teams Detail‑oriented, quality‑driven mindset Strong ownership of technical delivery and accountability Comfortable operating in
process‑heavy, high‑assurance programmes Required Qualifications Bachelor’s or Master’s degree
in Software Engineering, Computer Science, or related discipline, or a relevant
technical military background
with equivalent hands‑on experience. Candidates must be eligible to hold UK
SC security clearance
. Desirable Skills Exposure to
safety‑critical standards
such as
DO‑178
or equivalent Experience with
Ada
within high‑integrity or regulated systems Knowledge of
MISRA C/C++
or secure coding practices Familiarity with
automated testing, static analysis, or CI/CD pipelines Additional Information
Why join us? We bring together entrepreneurial, tech-driven people to deliver innovative solutions for leading companies. At ALTEN, you’ll work on exciting projects, supported by ongoing learning, mentoring, and clear career development tailored to your goals. Join a passionate team and help build tomorrow, today. In short you get: A personalised career path and a rewarding management style A huge diversity of engineering projects and industries Private Medical Insurance Cycle & Tech Scheme Employee assistance programme Life insurance & Pension Scheme Social atmosphere, regular gatherings & team buildings Flexible way of working (role dependent) We are proud to support the Armed Forces Covenant & actively encourage applications from members of the Armed Forces community, including veterans, reservists, service leavers, and military spouses/partners. We recognise the value of military skills and experience and are committed to ensuring that no applicant is unfairly disadvantaged during our recruitment and selection processes. ALTEN is committed to fostering a diverse and inclusive workplace and values the strength that comes from a global mix of backgrounds and perspectives. We welcome applications from all suitably qualified candidates, regardless of background or protected characteristics under the Equality Act 2010. If you require any reasonable adjustments during the recruitment process, please let us know. This role may require you to have or be willing to go through Security Clearance. As part of the onboarding process candidates will be asked to complete a Baseline Personnel Security Standard; details of the evidence required to apply may be found on the government website Gov.UK. If you are unable to meet this and any associated criteria, then your employment may be delayed, or rejected . Details of this will be discussed with you at interview. Contract Type: PermanentRegion: London Compensation: GBP 40000 - GBP 60000 - yearly
Reference: WJCPA-5429_387325 · Posted 13 Nov 2026, 12:53 AM