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Subsea Craft

Software Engineer (Control Systems)

Portsmouth
£40k – £60k/yr
Posted 3 days ago
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Software Engineer (Control Systems)

Software Engineer (Closed Loop Control Systems)

Salary: Up to £60,000 DOE Type: Full-Time • Permanent

About SubSea Craft

SubSea Craft is a fast-growing, privately-funded UK-based 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

  • Pension Contribution – Pension scheme with the option to contribute via salary sacrifice.
  • Annual Bonus Scheme – Eligibility to participate in the company’s annual discretionary bonus scheme, linked to individual and company performance.
  • Life Assurance & Critical Illness Cover – Comprehensive protection including:
    • Life Assurance (4x salary)
    • Critical Illness Cover
  • Annual Leave – 25 days of annual leave plus bank holidays.
  • Christmas Leave – Typically observed during company shutdown.
  • Wellbeing Day – One additional day per year for personal health and wellbeing.
  • Family Leave – Enhanced maternity and paternity pay.
  • Private Healthcare – Access to comprehensive private healthcare.
  • Professional Development – Ongoing learning and career growth supported by training programmes and LinkedIn Learning.
  • Flexible Working – Opportunities for flexible working arrangements.
  • Inclusive Culture – A professional environment that values diversity, innovation, and collaboration.

Role Overview

We are seeking a talented software engineer to help shape the future of intelligent vehicle control systems. You’ll work on cutting-edge projects blending software design, control systems, and real-world testing to deliver reliable, high-performance solutions.

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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

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Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

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Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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If you enjoy solving complex technical challenges, collaborating with a passionate team, and turning innovative ideas into reality, we’d love to hear from you.


Key Responsibilities

  • Develop software design and solutions aligned with system requirements, with a focus on closed-loop control and vehicle systems management.
  • Implement robust, scalable closed-loop control features, including:
    • Propulsion management
    • Control allocation
    • Autopilot systems
    • Station-keeping
    • Other advanced control functionalities
  • Conduct software testing and validation, including:
    • Unit testing
    • Simulation-based testing
    • Bench testing
    • Sea trials
  • Produce comprehensive software documentation.
  • Lead peer reviews to ensure designs are reliable, modular, and maintainable.
  • Collaborate closely with software and engineering teams to ensure timely delivery of high-quality software and documentation.

Qualifications & Experience

Required:

  • Degree-level qualification in Computer Science, Mechatronics, Robotics, or a related field; or equivalent industry experience.
  • Software development experience in modern C++ (C++14 or later).
  • Strong foundational knowledge of closed-loop control.

Desirable:

  • Good understanding of object-oriented programming (OOP) principles.
  • Experience with PID tuning on physical systems.
  • Experience with ROS (Robot Operating System) or ROS2.
  • Experience with CAN bus protocols.
  • Experience with embedded systems.
  • Familiarity with autonomous systems and robotics software stacks.
  • Experience with real-time systems or control systems.
  • Knowledge of sensor fusion, path planning, or state estimation.
  • Experience with marine or mobile robotics projects.

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Note: Due to the nature of our work, candidates must meet UK security requirements, including:

  • Existing right to live and work in the UK
  • Baseline Personnel Security Standard (BPSS) clearance
  • UK National security clearance may be required for certain roles*

Our Values & Expectations

We are committed to building an inclusive, diverse workplace where everyone can thrive.

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

If you require adjustments to interact with us, please let us know.


Important Notes

  • All offers are subject to satisfactory DBS, driving licence, and reference checks. A criminal record will not automatically disqualify you; it will be considered alongside other application materials.
  • Due to high applications volumes, we cannot respond to every applicant. If shortlisted, we aim to contact you within 14 days of your application or the closing date.
  • For details on how we process your personal data, please refer to our Privacy Notice은 맡김).
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Skills

C++
Closed Loop Control
Software Design
Unit Testing
Simulation Testing
Object Oriented Programming
PID Tuning
ROS/ROS2
CAN Bus
Embedded Systems
Autonomous Systems
Real-time Systems
Sensor Fusion
Path Planning
State Estimation
Marine Robotics

Location

Portsmouth, England, United Kingdom

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