Sr. IMMS Engineer

OSI Maritime Systems (UK), 8-10B Dragoon House, Waterlooville, Hampshire, United Kingdom

Posted Tuesday, December 16, 2025 at 2:00 a.m.

At OSI Maritime Systems, we pride ourselves on delivering world‑class navigation and bridge systems. With decades of experience serving military customers, we remain at the forefront of innovation in the maritime industry. Our collaborative and dynamic environment ensures every team member contributes to advancing marine safety and operational excellence. With a global presence, we are proud to have offices in Canada, UK, Taiwan, Australia and Germany.

OSI Maritime Systems are developing a new product line to supplement their established products; WECDIS, ECPINS and Integrated Bridge Systems. OSI Maritime are seeking two systems engineers, with MBSE experience. The candidates will be joining a small UK based team as we transition from product concept through to project delivery. This is a unique opportunity to join a product team early and influence the development of a world leading maritime systems integrator in the defense sector

The candidate will be working in an MBSE environment, using SysML in Sparx

EA and be expected to take the lead in one of the three areas;
Requirements Engineering, Model Based Systems Engineering or Software Engineering. The ideal candidate would be able to support the team in another area.

• Develop conceptual requirements for the new product, Op Con, CONOPS;
• Define the required capabilities, and develop the product system requirements
• Work with customers to identify customer requirements, develop use cases, and the customer project system requirements
• Support gap analysis between product and project requirements
• Establish the Acceptance Criteria, identify verification and validation activities
• Performs requirement analysis, traceability and maintenance of requirements
• Develop/Maintain the IMMS product model using SysML in SparxEA
• Develop Product System Design (Logical/Physical) from Product requirements/use cases
• Develop Project System Design (Logical/Physical)
• Co‑ordinate with specialist engineers (ILS, Safety, Security, HF, …)
• Support development of prototypes
• Solution definition; creating the most suitable sensor, effector, functionality combination
• Coordinates design of subsystems and integration of total system
• Generate Customer facing documentation from the model (e.g. SSDD, ICDs, SRS)

• Develop the software architecture
• Identify software requirements for IMMS
• Identify changes/integration with existing software
• Develop prototype software
• Develop production software
• Identify/Develop Software Testing strategy
• Support Software testing

A candidate must have experience working in an MBSE environment, ideally using SysML in Sparx

EA and be able to demonstrate the appropriate level of expertise in at least one of the desired skill sets;
Requirements Engineering (REQM
5), MBSE System Design (DESN 4 / ARCH
4) and/or Software Engineering (SWDN4 / PROG
4). The SFIA skill levels are provided for guidance only.

• Degree in Engineering or Physics, Engineering or related field or equivalent experience.
• 5+ years of experience designing and engineering solutions either in a Naval, government or industry role.
• Proven track record in the timely delivery of engineering related projects.
• Excellent communication and interpersonal skills.
• Eligible to obtain and maintain a location relevant security clearance.
• Willingness and ability to travel.

• Excellent knowledge of Systems Engineering principles, standards and best practices (INCOSE, or equivalent).
• Working experience in network design and architecture.
• Knowledge/Experience developing or using Mission Management, Combat sensors and/or Weapon Systems.
• Knowledge of mechanical, electrical, safety, security and/or human factors engineering is an asset.

• Collaborative Culture: Work with a talented and supportive team that values innovation and teamwork.
• Diversity, Equity, and Inclusion: OSI is committed to fostering a workplace where everyone feels respected, valued, and empowered to contribute their best.
• Growth Opportunities: We invest in our employees' professional development and career growth with an annual employee driven development program.
• Competitive Benefits: Enjoy health, dental, RSP, vacation and a healthy work‑life balance environment!

If you need accommodations during the hiring process, please contact Talent Acquisition.

OSI Maritime Systems (UK), 8-10B Dragoon House, Waterlooville, Hampshire, United Kingdom