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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 – Project Manager 

Job Location – Brighton

Our Brighton business is moving to a new location in 2027. The new site is expected to be located in either Shoreham, Burgess Hill or Horsham and will be within a 15-minute drive of our current site. 

About this opportunity and L3Harris UK

From 11 UK sites, our team of nearly 1,000 people delivers unique capabilities across space, air, land, sea and cyber for military, security and commercial customers across the UK and worldwide.

L3Harris in Brighton are part of Release Systems and the Mission Avionics sector operating in the Aerospace domain. Our mission-critical release systems equipment is on most major airborne fighter platforms worldwide, including the F-35, along with other aircraft like the Gripen and Typhoon. Brighton designs, manufactures and tests a large portion of its release systems portfolio. This facility offers 48,500 square feet of manufacturing space for the development of high-performance, multi-station solutions used to launch air-to-air and air-to-ground munitions from bay, wing or fuselage stations. 

We are seeking a highly motivated and experienced Project Manager to join our growing team. The successful candidate will be responsible for managing multifunctional teams from engineering disciplines and operations to ensure successful execution of projects and production orders. You will oversee the full programme lifecycle, from proposal preparation and submission through to project completion, while ensuring on-time, on-budget, and quality-driven delivery.

This role will be pivotal in driving the success of customer orders, internal R&D projects, and complex Design & Development initiatives related to mission-critical Defence and Aerospace products. As a Project Manager, you will ensure clear communication of project objectives, monitor progress, and be the primary point of contact for internal and external stakeholders.

Please note, our Brighton business is moving to a new location in 2027. The new site is expected to be located in either Shoreham, Burgess Hill or Horsham and will be within a 15-minute drive of our current site.

A few of our employee benefits are:

• 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 and cycle to work scheme
• Employee assistance program providing mental health and wellbeing support
• Professional membership reimbursement (discretionary)

What the role will involve

The responsibilities of your role will include the following:

• Project Execution: Lead and manage multidisciplinary project teams, including internal and external stakeholders (e.g., subcontractors), to deliver projects on time, within scope, and within budget.
• Schedule Creation & Implementation: Develop and implement integrated project schedules in collaboration with the company scheduler, ensuring all work packages are aligned with project timelines.
• Project Management: Take complete ownership of project budgets, resources, risks, and delivery schedules. Ensure all project activities are completed on time, cost, and quality targets.
• Cross-Department Coordination: Work across departments to ensure smooth execution of tasks. Coordinate and engage with customers as needed, ensuring timely delivery of project milestones.
• Risk Management: Conduct regular project risk reviews, identify potential issues, and develop and deploy mitigation strategies.
• Stakeholder Communication: Provide regular project status reports to division-level management and assist senior management with programme and business performance.
• Team Leadership: Motivate and manage project team members, ensuring continuous development and providing direction on programmatic issues.
• Bid & Proposal Management: Manage the end-to-end process of bids and proposals, from submission to customer engagement.
• Continuous Improvement: Contribute to the improvement of formal processes and procedures, focusing on enhancing the overall efficiency of the Project Management Team.

What you’ll bring

The role requires the following experience and skills:

• Previous experience in project management, with a proven track record of managing complex projects, particularly in highly regulated industries (e.g. Defence, Aerospace).
• Formal project management qualifications such as APM Project Management Qualification (PMQ), PRINCE2 Practitioner, PMP, or equivalent project/programme management experience.
• Strong commercial and project/programme management skills.
• Ability to manage multi-skilled teams through challenging customer requirements.
• Proficiency in project planning and scheduling (e.g. Microsoft Project).
• Ability to build and maintain excellent relationships with clients and stakeholders.
• Experience managing budgets, resources, risks, and schedules for complex projects
• A degree or HNC in aerospace/defence engineering or a related discipline is desirable
• Familiarity with Earned Value Management (EVM) principles and application is desirable 
• Knowledge of successful PMO bid & proposal management and programme management reviews is desirable 

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.

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.