ADA Software Engineer | Defence

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.

Play a vital role in developing software that protects airborne platforms from RF-based threats. At ALTEN, we’re supporting cutting-edge electronic warfare systems that demand precision, safety, and performance. As a consultant, you’ll be joining a highly collaborative engineering team delivering real-time, high-integrity embedded software across the full development lifecycle. This is your chance to work at the forefront of defence technology, where your skills will directly impact operational safety and mission success.

Key Details:

Location: On-site in Hertfordshire (4 days per week)

Security Clearance: Must be SC clearable

Experience Level: 5+ years’ experience in real-time embedded software

Key Responsibilities:

• Design and develop real-time embedded software for mission-critical defence systems using ADA.
• Deliver across the full software lifecycle, from requirements capture through to integration and test
• Ensure compliance with high-integrity software standards and robust engineering practices
• Work closely with systems, hardware, and test engineers to ensure smooth integration
• Produce and maintain high-quality technical documentation
• Demonstrate initiative and a proactive approach to learning product behaviour and driving improvements
  
  

Required Skills:

• Proven experience in ADA programming and embedded system development
• Strong understanding of real-time systems and safety-critical software development
• Experience working within structured, process-driven environments
• Ability to communicate effectively across engineering teams and with stakeholders

Required Qualifications:

• Must be eligible for UK Security Clearance (SC)
• A Bachelor's degree (minimum) in Software Engineering, Computer Science, Electronics, or similar technical field OR
• Demonstrable applied real-time embedded software engineering experience from a UK Armed Forces background will be equally considered.

Desirable Skills:

• Knowledge of DO-178C and safety-critical software assurance
• Experience with DOORS for requirements management and Dimension for configuration control
• Background in electronics engineering or embedded hardware interaction
• Familiarity with lab-based testing and debugging on real hardware
  
  

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)