Marine Systems Integration Engineer

The successful candidate will act as the technical interface between mechanical, electrical and software engineering teams, ensuring that onboard systems are successfully integrated into a coherent operational capability. Working closely with multidisciplinary engineering teams, the role requires an engineer capable of rapidly understanding complex systems, identifying integration issues and applying first-principles engineering to resolve technical challenges.

Purpose of the Role: To enable successful integration of hardware and software across complex maritime systems by coordinating the interaction between electrical, electronic, mechanical and software subsystems, ensuring that vessel functionality meets operational and performance requirements. This role requires full site attendance (Portsmouth) for the first 2 months, then 2-3 days until February 2027, and 3-4 days until July 2027. Responsibilities:

• Act as the technical integration engineer between hardware and software development teams.
• Develop an understanding of complex vessel systems and their interactions.
• Analyse system behaviour and identify root causes of integration issues.
• Support integration of control software with onboard hardware.
• Work with software engineers to define hardware interfaces and control logic.
• Support integration of electrical, electronic and mechanical systems.
• Assist with system commissioning, fault finding and functional testing.
• Support vessel trials and verification activities where required.
• Break down complex technical problems using structured engineering approaches.
• Liaise with multidisciplinary engineering teams to ensure technical solutions are delivered efficiently.
• Produce concise technical documentation where required.

Candidates should typically possess between 3-10 years of relevant engineering experience within complex engineering environments. Experience should include:

• Integration of multidisciplinary engineering systems.
• Software engineering or embedded software development.
• Electrical and electronic engineering.
• Hardware/software interface development.
• Engineering problem solving within complex products.
• Working within multidisciplinary engineering teams.
• Rapid understanding of unfamiliar systems.

Experience within maritime, defence or other highly integrated engineering sectors would be advantageous. Essential skills:

• Strong systems thinking.
• Excellent analytical and diagnostic skills.
• Ability to understand complex engineering systems quickly.
• Strong software engineering knowledge.
• Understanding of hardware/software integration.
• Electrical and electronic engineering fundamentals.
• Structured problem solving using first principles.
• Ability to communicate effectively across multiple engineering disciplines.
• Comfortable working in fast-paced prototype and development environments.

Desired skills:

• PLC programming.
• Systems commissioning.
• Marine control systems.
• Maritime platform experience.
• CANBus, Ethernet/IP or industrial communications.
• Embedded control systems.
• Sensor and instrumentation integration.
• Hydraulic control systems.
• Human Machine Interfaces (HMI)
• Sea trials or commissioning experience.

Experience: Candidates may come from disciplines including:

• Systems Engineering
• Controls Engineering
• Embedded Software Engineering
• Marine Electrical Engineering
• Mechatronics
• Robotics
• Automation Engineering
• Marine Engineering

The successful candidate will demonstrate:

• Intellectual curiosity.
• Strong engineering judgement.
• Excellent troubleshooting capability.
• Ability to simplify complex technical problems.
• Collaborative working style.
• Pragmatic approach to engineering.
• Self-motivation with minimal supervision.
• Confidence working across multiple engineering disciplines.

Expleo is seeking two Marine Systems Integration Engineer to support one of our clients in the integration, commissioning and development of advanced maritime platforms.