Software Engineer
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Before you apply
LocationFareham, England, gb
Work modehybrid
Typefull-time
SenioritySenior
Experience5+ yrs
DepartmentDefense & Naval
Company size10,000+ people
PostedSep 28, 2026 · 1mo ago
Verified live12h ago
At a glanceSummarised by Seekless from the posting.
5+ years of relevant experience
Strong commercial experience with C++
Hands-on experience with Qt / QML
Background in real-time, embedded, or performance-critical systems
Ability to work on complex systems that integrate software, hardware, and data
Comfortable working remotely as part of a collaborative engineering team
Experience within Defence or Maritime industries
Bachelor's or Master's degree in Engineering
Experience working with sensor data such as cameras, radar, LiDAR, or similar inputs
Background in image processing, computer vision, or perception systems
Exposure to embedded Linux or low-level system integration
Understanding of performance optimisation and multi-threaded applications
Experience working in regulated, safety-critical, or high-reliability environments
Willing and eligible to obtain at least BPSS clearance
Skills
C++
Qt
QML
embedded Linux
Benefits
Private medical insurance
Cycle scheme
Tech scheme
Employee assistance programme
Life insurance
Pension scheme
Flexible working
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
We’re looking for an experienced Software Engineer to join our team in Fareham a distributed engineering team working on high‑performance, real‑time systems. This role is ideal for someone who enjoys building robust backend software, working close to hardware and sensors, and creating intuitive user interfaces for complex systems.
You’ll be involved across the full software lifecycle, contributing to both core system logic and user‑facing applications, with a strong focus on performance, reliability, and quality.
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Location: Fareham
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On Site: Regular Access to the site
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Clearance: Candidates should be willing and eligible to obtain at least BPSS clearance.
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Experience Level: 5+ years of relevant experience.
Key Responsibilities:
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Design, develop, and maintain backend software components using modern C++
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Build and implement algorithms that combine and process data from multiple sensors
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Develop and optimise real‑time image and data processing pipelines
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Create and integrate user interfaces using Qt and QML, connected to C++ backends
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Ensure high software quality through code reviews, testing, debugging, and performance tuning
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Collaborate closely with systems, embedded, and UI/UX engineers
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Contribute across the full development lifecycle: requirements, architecture, implementation, and documentation
Qualifications
Required Skills:
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Strong commercial experience with C++
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Hands‑on experience with Qt / QML
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Background in real‑time, embedded, or performance‑critical systems
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Ability to work on complex systems that integrate software, hardware, and data
•
Comfortable working remotely as part of a collaborative engineering team
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Experiance within Defence or Maritime industries
Required Qualifications:
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A Bachelor’s or Master’s degree in Engineering, or equivalent military experience.
Desirable Skills:
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Experience working with sensor data such as cameras, radar, LiDAR, or similar inputs
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Background in image processing, computer vision, or perception systems
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Exposure to embedded Linux or low‑level system integration
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Understanding of performance optimisation and multi‑threaded applications
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Experience working in regulated, safety‑critical, or high‑reliability environments
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:
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A personalised career path and a rewarding management style
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A huge diversity of engineering projects and industries
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Private Medical Insurance
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Cycle & Tech Scheme
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Employee assistance programme
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Life insurance & Pension Scheme
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Social atmosphere, regular gatherings & team buildings
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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.
Legal
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.