Software Integration Engineer

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 our team as a Software Integration Engineer and play a key role in delivering complex, mission‑critical systems within the defence sector. This role sits at the intersection of embedded software, communications, and system integration
, supporting the integration of imposed COTS/MOTS equipment into larger, safety‑critical architectures.

You will work in a hands‑on engineering environment, supporting component‑ and system‑level software integration
, translating between dissimilar communication standards, debugging real hardware in the lab, and supporting system de‑risking and verification activities in close collaboration with systems, electronics, and software teams.

Location: Woking

On‑site: On site Hybrid

Seniority:
Mid‑level (5–9 years’ experience)

Clearance: Candidates must be willing and eligible to obtain SC clearance

• Design, develop, and document application‑level drivers for imposed COTS/MOTS equipment
• Integrate embedded software at component, ECU, and system level
• Implement and validate communications translations across multiple protocols (e.g. Ethernet, CAN, Modbus)
• Support lab‑based integration, compatibility testing, system bring‑up, and integration testing activities
• Identify, diagnose, and resolve interoperability, communications, and interface issues early in the integration lifecycle
• Work closely with the Systems Architect to close technical risks and support architectural decisions
• Track requirements, changes, and delivery status across multiple stakeholders
• Interface with systems, electronics, and software SMEs to agree and implement low‑level integration solutions

• Background as a software integration engineer, embedded software engineer, or systems integration engineer
• Strong C and/or C++ low‑level software capability
• Experience working with black‑box COTS/MOTS equipment and vendor‑supplied APIs
• Hands‑on lab and debugging experience using logic analysers, protocol sniffers, and similar tools
• Experience translating between dissimilar communication standards
• Exposure to component‑ and system‑level software integration
• Experience delivering solutions in defence, avionics, automotive, or other safety‑critical environments

• Experience working within a Software Development Lifecycle (SDLC) for embedded or automotive systems
• Exposure to structured development models such as V‑cycle and ASPICE
• Understanding of requirements traceability, compliance, and verification
• Experience validating that development and integration processes are followed correctly
• Familiarity with integration testing and debugging in complex environments
• Experience with Vector tools such as CANoe and CANalyzer

• Pragmatic, solutions‑focused engineering mindset
• Strong coordination and communication skills across software, systems, and hardware teams
• Comfortable working in ambiguous problem spaces and de‑risking integrations
• Takes ownership of technical tasks and sees them through to completion

Required Qualifications: Bachelor’s or Master’s degree in Software Engineering, Electronic Engineering, Systems Engineering
, or related discipline, or a relevant technical military background with equivalent experience.

• Experience with additional communication protocols or networked systems
• Exposure to defence, avionics, automotive, or safety‑regulated programmes
• Understanding of system‑level integration and verification activities
• Familiarity working with suppliers and…