Control Systems Integration Engineer in Portsmouth, United Kingdom

Who we are: SubSea Craft is a fast growing, privately-funded, UK-based innovative maritime technology company specialising in next-generation, high-performance watercraft and systems. We operate at the intersection of advanced engineering, cutting-edge design, and user-centric innovation, delivering safe, effective, and enabling solutions for both commercial and defence applications.

What we offer:

• Annual Leave – Entitlement to 25 days of annual leave plus bank holidays
• Wellbeing Day - An additional Wellbeing Day each year to focus on personal health and wellbeing.
• Private Healthcare – Access to comprehensive private healthcare coverage to support your physical and mental wellbeing.
• Life Assurance and Critical Illness Cover – Comprehensive protection including Life Assurance (4x salary) and Critical Illness Cover for added financial security.
• Family Leave – Enhanced maternity and paternity pay
• Christmas Leave – A Christmas shutdown is typically observed.
• Professional Development – Commitment to ongoing learning and career growth, supported by training programmes and access to LinkedIn Learning.
• Pension Contribution – pension scheme with the option to contribute via salary sacrifice
• Flexible Working – Opportunities for flexible working arrangements to promote work–life balance.
• Inclusive Culture – A professional environment that values diversity, innovation, and collaboration.

We're looking for a Control Systems Integration Engineer to help bring our autonomous marine platforms to life through seamless integration of hardware and software. In this hands-on role, you'll configure and test sensors, actuators, and networks, design and tune control systems, and ensure everything works together flawlessly, from the bench to sea trials. If you're excited by complex systems, real-world testing, and making autonomy work in the harshest environments, we want to hear from you.

Responsibilities will include:

• Hardware configuration and testing, including sensors, actuators and networking systems.
• Design and development of closed loop control of analog and digital actuation systems, with PLC or similar embedded systems.
• Design and configuration of data networks.
• Production of comprehensive interface documentation for control systems.
• Internal and external software integration, testing and benchmark.
• Conducting sea trials, including testing and validation of software, networking, system integration.

Essential:

• Degree level qualification in Mechatronics, Electronics Engineering, Computer Science (or other STEM subject) or equivalent experience.
• 2+ years hardware integration and testing experience.
• An understanding of basic closed loop control.

Desirable:

• PLC programming with Codesys.
• An understanding of basic electronics.
• Experience with CAN bus.
• Experience with industry standard communication protocols, such as CANOpen, NMEA2000, NMEA0183.
• Familiarity with the Linux command line.
• Embedded systems programming in C/C++.
• Experience with mobile robotics projects.
• Experience with networking.
• Experience using containers (such as Docker).

Note: Due to the nature of work undertaken at SubSea Craft, the selected candidate must be capable of meeting the security requirements of the position, which would include as a minimum existing right to live and work in the UK, Baseline Personnel Security Standard (BPSS), with UK National security clearance required for certain roles.*

Values: Our people are our greatest asset, we continually strive to provide an excellent working environment to enable our team to do their best work. We have an agile professional workforce: we are founded on the belief that our people are valued and our business is trusted, inclusive and commercially-adept.

What we expect from you:

• Teamwork, mutual respect and collaboration
• Initiative and independent working
• Honesty and integrity
• Business and commercial awareness
• Agility, adaptability and continuous development

We are committed to building an inclusive, diverse workplace where everyone can thrive. If you require any support or adjustments to interact with us, please let us know.

*Please note that all offers of employment are conditional and subject to satisfactory DBS, driving licence and reference checks. A criminal record will not automatically disqualify candidates from employment. We will consider criminal record information alongside the wider range of evidence gathered at the application, interview, and pre-employment checking stages.

Due to the high volume of applications, we are unable to respond to everyone. If you are shortlisted, we will aim to contact you within 14 days of your application or the closing date (if stated). We may retain your details for future suitable roles unless you advise us otherwise.

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