C++ Algorithms Engineer

Job Description

Engage in the development of next‑generation sonar systems and 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: Monday – Friday (5 Days)

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 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 toolchains.

Qualifications

Required Skills

• Strong proficiency in C++ 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.

Soft Skills & Collaboration

• 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 discipline OR relevant technical military background with equivalent hands‑on experience.
• Must be eligible for or already hold UK Security Clearance (SC).

Desirable Skills

• 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.

Benefits

• 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 and many additional benefits.
• Social atmosphere, regular gatherings, and team buildings.
• Flexible way of working (role dependent).

This role will 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.

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