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!

As a CAD Automation Developer, you will join the Derby team to support our activities within the aerospace and defence sector.

Working as a consultant for ALTEN, you will contribute to the development of advanced CAD/CAM automation tools supporting next-generation aero engine and power systems programmes. This role focuses on building scalable, high-performance geometry-driven engineering applications, driving automation, efficiency and digital transformation within complex mechanical design environments. You will take ownership of architecture, code quality and DevOps integration in a highly regulated engineering domain.

Location: Derby
On Site: Hybrid
Clearance: Full right to work in the UK (SC Clearance Desirable)
Experience Level: 5+ Years

Key Responsibilities

• Design, develop and maintain geometry-based engineering tools using NX-Open (C#) for advanced CAD automation.
• Define and implement robust software architecture, applying SOLID principles and proven design patterns (Factory, Strategy, Observer, Dependency Injection).
• Develop scalable, high-performance desktop engineering applications aligned to enterprise architecture standards.
• Build, manage and optimise CI/CD pipelines using Azure DevOps and Jenkins, including automated build and deployment workflows.
• Implement release automation scripts using Python, Bash or C++, ensuring reliable and repeatable deployments.
• Conduct code reviews, architectural reviews, debugging and troubleshooting, maintaining 95%+ unit test coverage using NUnit.
• Maintain and manage version control systems (Git, SVN), including branching and merging strategies.
• Collaborate within Agile development environments, supporting continuous improvement and integration of new tools and technologies.

Required Skills

• Strong expertise in C#, with additional experience in Python and C++.
• Extensive hands-on experience with NX Customisation and NX-Open automation.
• Deep knowledge of .NET frameworks and object-oriented programming principles.
• Proven ability to design clean, modular and maintainable architectures.
• Strong experience with Azure DevOps, Jenkins, CI/CD pipelines, and release automation.
• Solid understanding of Computational Geometry, Parametric Curves and Differential Geometry.
• Experience working in Agile software development environments.

Required Qualifications

• A Bachelor’s or Master’s degree in Engineering, Computer Science, or related discipline, or equivalent military experience.
• 5+ years’ experience in software development within engineering or CAD/CAM domains.
• Experience developing applications in aerospace, defence or other high-integrity engineering environments.

Desirable Skills

• Experience supporting aero engine design or complex mechanical systems programmes.
• Exposure to enterprise-scale digital engineering transformations.
• Familiarity with advanced automation frameworks and scripting environments for CAD optimisation.

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. 

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.