Senior C++ Software Engineer - Linux Based Systems

ALTEN Group; Reading; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

ALTEN Group is seeking a Senior C++ Software Engineer passionate about designing high-integrity software for mission-critical defence systems. This role involves collaborating in a modern Agile environment to create resilient software solutions. Ideal candidates will have strong expertise in C++17/20, Python, and Linux, along with a solid background in software development practices. The position offers the opportunity to work in a hybrid setup in Reading or Crawley, contributing to impactful projects with national-level importance.

Benefits

Private Medical Insurance

Pension Scheme

Cycle-to-work Scheme

Flexible working

Qualifications

• Strong experience with modern C++ (17 minimum, 20 preferred) and Python.
• Familiarity with Agile methodologies and safety-critical environments.
• Experience with unit testing and CI/CD tooling.

Responsibilities

• Develop and maintain software using C++ and Python in a Linux environment.
• Create and integrate automated test frameworks as part of CI/CD pipelines.
• Work within a Scrum-based Agile team using collaboration tools.

Skills

C++

Python

Linux

CI/CD tooling

Multi-threaded systems

Agile methodologies

Education

Bachelor's or Master's degree in Software Engineering or Computer Science

Tools

CMake

JIRA

Confluence

GIT

Coverity

SonarQube

Job description

Senior C++ Software Engineer - Linux Based Systems

Senior C++ Software Engineer - Linux Based Systems

1 day ago Be among the first 25 applicants

Get AI-powered advice on this job and more exclusive features.

This range is provided by ALTEN LTD - UK. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Are you passionate about engineering? Do you want to make a difference?

ALTEN is a global engineering and technology consultancy operating across over 30 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, and many more to deliver innovative engineering solutions that drive technological advancement and 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.

Are you passionate about engineering? Do you want to make a difference?

ALTEN is a global engineering and technology consultancy operating across over 30 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, and many more to deliver innovative engineering solutions that drive technological advancement and 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.

Job Description

Design high-integrity C++ software for mission-critical defence systems.

Work in a collaborative, forward-thinking team using modern C++ (C++17/20) to build resilient solutions for real-world operational platforms. You’ll help implement automated test pipelines, contribute to secure software design, and deliver to the highest engineering standards in a fast-paced, Agile development environment. Hybrid working is available from Reading or Crawley, and you’ll be contributing to a long-term UK programme with national-level importance.

Location: Reading or Crawley (Hybrid Working)

Security Clearance: Must be eligible for UK SC Clearance

Experience Level: 5+ years

Key Responsibilities

• Develop and maintain software using C++17 or C++20 and Python in a Linux-based environment
• Create and integrate automated test frameworks as part of CI/CD pipelines
• Work with multi-threaded systems and modern build systems such as CMake
• Implement secure, scalable features following safety/security-conscious development principles
• Collaborate within a Scrum-based Agile team using tools like JIRA and Confluence
• Contribute to technical documentation, configuration management and version control using GIT
• Support ongoing improvements to code quality using tools like Coverity or SonarQube
  
  

Qualifications

Required Skills

• Strong experience with modern C++ (17 minimum, 20 preferred) and Python
• Comfortable developing in Linux (e.g. RHEL 8.10+) and using CMake
• Experience with unit testing (e.g. GoogleTest) and CI/CD tooling (e.g. Jenkins, Bitbucket)
• Experience with WebSockets, SNMP, or other communication protocols
• Familiarity with Agile methodologies and working in structured, safety-critical environments
• Confident working with multi-threaded software in a collaborative team setting

Desirable Skills

• Experience with embedded systems or low-level driver development
• Exposure to UML modelling tools (e.g. Enterprise Architect)
• Familiarity with CyberSecurity tools (SAST/DAST/SCA) and secure coding standards
• Awareness of containerisation (e.g. Docker) and software traceability practices

Required Qualifications

• A Bachelor’s or Master’s degree in Software Engineering, Computer Science, or related discipline
• OR a relevant technical military background with equivalent hands-on engineering experience
• Must be eligible for UK SC Security Clearance (Minimum 5 Years in the UK)
  
  

Additional Information

Why join us?

We foster a community of dually talented individuals who are both entrepreneurs and technology specialists. Our teams embody the spirit of innovation and entrepreneurship, enabling us to develop solutions most efficiently.

Our commitment to sustainable growth is unwavering, and we continuously strive for accelerated transformation and continuous improvement. Through ALTEN labs, mentoring programs, internal universities, and more, we are always pushing boundaries and embracing new possibilities.

We offer incredible opportunities to join inspiring projects in the most innovative companies.

We prioritise your career development with personalised support plans tailored to your own aspirations. We're here to empower you and help you reach your full potential.

Join our passionate team and start building tomorrow, today!

In short you get:

• A personalised career path and a rewarding management style
• A chance to work on the most exciting engineering projects and technologies along with Premium Customers
• A huge diversity of engineering projects and industries
• A competitive salary
• Private Medical Insurance
• Pension Scheme
• Cycle-to-work Scheme among many additional benefits
• Social atmosphere, regular gatherings, and team buildings
• Flexible way of working (role dependent)

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Consulting

• Industries

  IT Services and IT Consulting

Referrals increase your chances of interviewing at ALTEN LTD - UK by 2x

Sign in to set job alerts for “Senior System Software Engineer” roles.

Reading, England, United Kingdom 1 month ago

Oxford, England, United Kingdom 8 months ago

Farnborough, England, United Kingdom 1 week ago

Egham, England, United Kingdom 21 hours ago

Lower Eashing, England, United Kingdom 1 month ago

Graduate Software Engineer (Cloud Solutions)

Reading, England, United Kingdom 6 months ago

Oxford, England, United Kingdom 3 weeks ago

Newbury, England, United Kingdom 1 day ago

Oxford, England, United Kingdom 3 weeks ago

Wexham Street, England, United Kingdom 1 week ago

Software Engineer I - Frontend Focus (Viator)

Oxford, England, United Kingdom 3 weeks ago

Slough, England, United Kingdom 1 week ago

Uxbridge, England, United Kingdom 1 week ago

Reading, England, United Kingdom 1 month ago

Staines-Upon-Thames, England, United Kingdom 1 week ago

Reading, England, United Kingdom 3 weeks ago

Oxford, England, United Kingdom 1 week ago

Woking, England, United Kingdom 4 weeks ago

Staines-Upon-Thames, England, United Kingdom 1 week ago

Junior Embedded Software Engineer (UNB033)

Reading, England, United Kingdom 2 days ago

Oxford, England, United Kingdom 17 hours ago

Reading, England, United Kingdom 3 days ago

Oxford, England, United Kingdom 23 hours ago

Uxbridge, England, United Kingdom 1 week ago

Oxford, England, United Kingdom 4 days ago

Oxford, England, United Kingdom 3 weeks ago

Reading, England, United Kingdom 1 month ago

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.