C++ Algorithms Engineer

• Compensation: GBP 40,000 - GBP 65,000 - 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!

Engage in the development of next‑generation
sonar systems
autonomous
undersea vehicles
, with ALTEN Ltd! Join our team to develop and integrate advanced
mathematical models and signal processing algorithms
into operational defence software systems to enhance detection, classification, and imaging capabilities. You’ll work on translating complex theoretical models into efficient, production‑ready code that underpins high‑performance, safety‑critical applications. Your work will contribute to the evolution of autonomous mine countermeasure systems, leveraging AI‑driven mission management to
improve maritime security
and operational efficiency.

Location:Manchester (Stockport)
On‑site:4-5 Days per week
Seniority:Senior (8+ years’ experience)
Clearance:SC clearable (no caveats)

Key Responsibilities

• Implement, integrate, and optimise
  complex mathematical and signal processing models
  into production software.
• Apply
  model‑driven development
  , combining both autogenerated and hand‑written code.
• Ensure
  high code quality
  through adherence to clean coding principles, static analysis, and best practices.
• Collaborate with teams on
  model simulation, validation, and verification
  , using MATLAB/Simulink or similar tools.
• Maintain comprehensive
  software documentation deliverables
  and reporting.
• Support
  unit and wider software testing
  to ensure reliability and performance.
• Contribute to the ongoing improvement of
  software architectures and tool chains
  .

Required Skills

• Strong proficiency inC++development.
• Experience with
  software architectures
  and system software design.
• Expertise in
  mathematics & signal processing
  , and
  model implementation capabilities
  .
• Familiarity with
  Linux targets
  and development infrastructure.
• Knowledge of
  software development processes, configuration management (SCM, Jira), and unit testing
  .
• Understanding of
  container deployment, networking, and GPU integration
  where relevant.
• Excellent
  teamwork
  , working effectively across multi‑disciplinary engineering teams.
• Strong
  communication skills
  to clearly articulate technical ideas and progress.
• Demonstrated
  leadership
  , mentoring, and ability to influence software quality improvements.
• Positive
  attitudes and behaviours
  , proactive and adaptable in complex environments.
• Capable of
  project reporting
  and collaborating on risk management discussions.

Required Qualifications

• A
  Bachelor’s or Master’s degree
  in
  Software Engineering, Computer Science,or a related disciplineORrelevant
  technical military background
  with equivalent hands‑on experience.
• Must be eligible for or already hold
  UK Security Clearance (SC)
• A PhD is highly desirable, but not required.
• Familiarity with
  Linux scripting
  , Windows targets, and software build pipelines.
• Exposure to
  software QA, safety compliance, and assurance practices
  .
• Knowledge of
  Defence sector processes
  and tooling.
• Awareness of
  CI/CD, containerisation, virtualisation
  , and emerging development methodologies.

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.

• A personalised career path and a rewarding management style
• A huge diversity of engineering projects and industries
• Private Medical Insurance
• Employee assistance programme
• Life insurance & Pension Scheme
• Social…