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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 – Executive Assistant

Job Location – Tewkesbury

Job ID – 46809

About this opportunity and L3Harris UK

Operating at 11 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 Tewkesbury is part of our Global Spectrum Superiority (GS2) division. In the land domain, our T7 and T4 multi-mission robots deliver next-generation remote capabilities and uncompromised performance. We design and manufacture world-leading land force protection systems, cyber and electromagnetic activities (CEMA), electronic warfare (EW) and encryption capabilities. Our cyber capabilities provide an information advantage in the fields of kinetic conflict, cyber warfare, force protection and counterterrorism.

We are seeking a highly professional, discreet, and proactive Executive Assistant (EA) to provide comprehensive support to the Divisional Leadership Team and other executive leaders within our defence sector business. This is a pivotal role requiring exceptional organizational skills, confidentiality, and the ability to operate effectively in a complex and fast-paced environment.

The ideal candidate will be comfortable working with sensitive information, liaising with high-level internal and external stakeholders, including government and defense partners—and managing multiple priorities with precision and discretion.

A few of our employee benefits are:

• 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

The responsibilities of your role will include the following:

Executive Support

• Provide comprehensive executive-level administrative support to the Division Leadership Team, managing complex and dynamic calendars, prioritising critical business activities, and resolving competing scheduling demands.
• Act as a trusted partner to the Division Leadership Team, ensuring leaders remain informed of upcoming commitments, priorities, deadlines, and key business responsibilities.
• Draft, prepare, and coordinate professional correspondence, reports, presentations, briefing materials, and other business documentation, maintaining the highest standards of accuracy, professionalism, and confidentiality.
• Manage sensitive and confidential communications, exercising sound judgement to determine appropriate actions, referrals, and responses on behalf of the Division Leadership Team.
• Act as a key liaison between the Division Leadership Team and senior executives, customers, government stakeholders, and employees, fostering effective communication and strong professional relationships.
• Coordinate Division Leadership Team, Senior Leadership Team, and Board-related meetings, including agenda preparation, collation of meeting materials, minute-taking, action tracking, and follow-up to completion.
• Ensure leaders are fully briefed and prepared for meetings, business reviews, strategic engagements, and key organisational events through the provision of timely and relevant information.
• Effectively manage competing priorities and confidential matters, working proactively and independently to deliver high-quality outcomes under demanding deadlines and changing business requirements.

Administration and Operations Support

• Support planning and execution of key internal and external events, site visits, and conferences.
• Coordinate with security teams to ensure compliance with Defence sector standards and visitor protocols.
• Provide site administration support, coordinating office-based activities, managing visitor arrangements and ensuring the smooth day-to-day operation processes. Provide reception cover as required, acting as a professional first point of contact for visits customers and employees

Travel Coordination 

• Act as the point of contact for all travel enquiries within the GS2 (UK) business, coordinating with a designated third-party travel provider.
• Support employees in how to access and use the travel booking system when they are coordinating their own travel.
• Be an escalation point for travel when issues arise with third party providers
• Ensure adherence to corporate travel policies and escalate exceptions when necessary.

What you’ll bring

The role requires the following experience and skills:

• Proven experience providing executive-level administrative support to senior leaders and leadership teams within a fast-paced corporate environment.
• Experience managing highly sensitive and confidential information with discretion, professionalism, and sound judgement.
• Demonstrated ability to coordinate complex calendars, meetings, travel arrangements, and business logistics with a high degree of accuracy and attention to detail.
• Strong stakeholder management and interpersonal skills, with the ability to build effective relationships at all levels of the organisation and with external partners.
• Experience supporting senior leadership meetings, including agenda management, preparation of meeting materials, minute-taking, action tracking, and follow-up.
• Proficiency in Microsoft 365 applications, including Outlook, Word, Excel, PowerPoint, Teams, and SharePoint, with the ability to quickly adopt new digital tools and technologies.
• Strong organisational and prioritisation skills, with the ability to manage multiple competing demands, work independently, and meet tight deadlines.
• Experience coordinating events, workshops, leadership meetings, and visitor arrangements.
• Experience providing office or site administration support, including reception duties where required.
• A proactive, solutions-focused approach with the ability to anticipate requirements and respond effectively to changing business priorities.

Important to know

Due to the nature of our work many our roles require a UK nationality and the ability to obtain a security clearance. 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.