Senior Systems Engineer

L3Harris Technologies, Inc.; Fareham; Hybrid; GBP 65,000 - 100,000; Full time

Benefits offered by this job

37.5 hour week

Hybrid work

Private medical insurance

Pension scheme

Life insurance

Group income protection

Flexible extras

Family assistance program

Membership reimbursement

Job summary

L3Harris Technologies, Inc. is seeking a Senior Systems Engineer to lead the engineering strategy and technical delivery of a complex maritime autonomy programme at Portchester, UK.

You will shape solution architecture, align with business objectives, and ensure compliance with governance and industry standards. You will manage a cross‑functional engineering team, mentor staff, collaborate with programme managers on scope and bids, monitor progress, and act as the primary customer interface for

Qualifications

• Proven experience leading engineering teams in defence/maritime/aerospace or regulated environments.
• Strong planning, communication, and stakeholder management skills.
• Expertise in systems engineering principles, interfaces, and system decomposition.
• Experience with requirements engineering and do bid leadership or capture activities.

Responsibilities

• Lead the engineering strategy and technical delivery of a complex maritime autonomy programme.
• Mentor a cross-functional engineering team to meet programme objectives.
• Ensure compliance with governance, processes and industry standards.
• Collaborate with Programme/Project Managers to define scope, delivery plans and resources.
• Support business development activities, including bid leadership and cost estimation.
• Monitor progress and report on technical progress, risks and opportunities.
• Serve as the primary engineering interface with customers.

Skills

Leadership

Systems engineering

Defence domain

Requirements engineering

Bid leadership

Cost estimation

Stakeholder management

Team mentorship

Tools

IBM DOORS

System Architect

IBM Rhapsody

Job description

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers' mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title - Senior Systems Engineer Job Location - Portchester, UK Job ID - 47276 About this opportunity and L3Harris UK Operating at 9 sites in the United Kingdom, L3Harris supports Britain's mission to secure and strengthen the country by delivering sovereign innovation across the space, air, land, sea and cyber domains. L3Harris in Portchester are part of our Maritime UK business - a leading global supplier of integrated marine control systems and simulation products for warships, submarines and high‑end commercial marine vessels worldwide. Our Maritime UK business has four UK location and together we are powering the Royal Navy's adoption of autonomous surface vehicle technology as well as delivering autonomous capability to UK ports, harbours and offshore energy service providers. We are seeking an experienced Senior Systems Engineer to play a key role in the delivery of an innovative maritime autonomy programme. In this position, you will lead the engineering strategy and technical execution required to develop and deliver an autonomous vessel solution, ensuring alignment with business objectives, customer requirements, and established engineering processes. As a Senior Engineer, you will lead a small, multidisciplinary team and drive programme success across cost, schedule, quality, and technical performance. You will work closely with Programme and Project Managers to develop new business opportunities, define technical solutions, support bids and cost estimates, and oversee delivery planning. This is an opportunity to lead the development of cutting‑edge autonomous maritime capability, working at the forefront of defence and advanced technology. You'll have the autonomy to shape technical direction, influence programme outcomes, and collaborate with experts across multiple engineering disciplines while delivering solutions that make a real operational impact. You will act as the primary engineering interface with customers, providing technical leadership throughout the programme lifecycle while proactively managing risks, resolving issues, and communicating progress through meaningful performance metrics. A few of our employee benefits are:

• 37.5 hour working week
• Hybrid working where possible, three days onsite per week
• Half day finish on a Friday
• 25 days holiday per year (plus bank holidays), increasing with long service and with the opportunity to buy/sell up to 5 days
• Private medical insurance with optional family cover
• Pension scheme of up to 8% employer contribution
• Life Assurance 4x salary (flexible up to 10x)
• Group income protection
• Flexible opt-in extras such as a health care cash plan, dental insurance, gym membership, critical illness cover, cycle to work scheme, travel insurance and electric car scheme
• Employee Family Assistance Program providing mental health and wellbeing support
• Professional membership reimbursement (discretionary)

What the role will involve

• Lead the engineering strategy and technical delivery of a complex maritime autonomy programme.
• Manage and mentor a cross-functional engineering team to achieve programme objectives.
• Ensure compliance with engineering governance, business processes, and industry standards.
• Collaborate with Programme and Project Managers to define technical scope, delivery plans, and resource requirements.
• Support business development activities, including bid leadership, solution development, and cost estimation.
• Monitor programme performance and provide regular reporting on technical progress, risks, opportunities, and issues.
• Serve as the primary customer point of contact for engineering and technical matters.
• Drive effective systems engineering practices throughout the project lifecycle.

What you'll bring

• Proven experience leading engineering teams within complex defence, maritime, aerospace, or highly regulated environments.
• Strong planning, communication, stakeholder management, and coordination skills.
• Excellent understanding of systems engineering principles, including: System context and boundaries, Interfaces and interactions, System hierarchies and decomposition and System partitioning and complexity management
• Demonstrable experience with requirements engineering, including requirements elicitation, analysis, validation, and management.
• Experience working within Defence programmes and applying Systems Engineering best practices.
• Strong proficiency in engineering tools, including: IBM DOORS (essential) and experience with System Architect and/or IBM Rhapsody would be advantageous.
• Experience leading the technical delivery of bids, proposals, or capture activities.

Desirable Experience

• Background in Software Engineering.
• Experience applying Model-Based Systems Engineering (MBSE) approaches and methodologies.
• Knowledge of architectural frameworks such as MODAF and DoDAF.
• Broad engineering awareness with the ability to support and understand adjacent disciplines, including: Safety Engineering, Electromagnetic Compatibility (EMC), Integrated Logistics Support (ILS), Verification & Validation, Systems Integration

Important to know Applicants who accept a conditional offer of employment must meet the requirement of right to work in the UK and must meet eligibility requirements for access to classified information and will be subject to government security checks. #LI-Hybrid #LI-RT1 #SeniorSpecialistSystemsEngineer L3Harris Technologies is proud to be an Equal Opportunity Employer. We are committed to maintaining a workplace that is free from unlawful discrimination and offers equal opportunities for all. Applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief, and marriage and civil partnerships.