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 Technologies is the Trusted Disruptor in the defense industry. 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 – Marketing Content Writer
Job Location – Tewkesbury
Job ID – 26866
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 Tewkesbury is our HQ for our Intelligence & Cyber International 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.
A few of our employee benefits are:
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 7 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 Marketing Content Writer plays a critical role in shaping and delivering clear, compelling, and strategic communications across internal and external channels. As part of the global ICI spaneting team, you will create high-impact content that brings complex technical solutions to life for a variety of audiences, supporting business growth, brand awareness, and customer engagement.
The role requires a versatile communicator who can blend technical accuracy with narrative flair—someone who understands how to collaborate across geographies and business units while maintaining a consistent voice and tone aligned with corporate standards.
The responsibilities of your role will include the following:
Create compelling content and copy across a broad range of physical and digital platforms for external and internal use
Support and manage multiple concurrent projects, including major product launches, joint industry announcements, and global advertising campaigns.
Develop and maintain spaneting assets in line with branding guidelines, working with designers and creative teams.
Work with PR and social media leads to plan and execute campaigns, ensuring timely content delivery and alignment with strategic objectives.
Contribute to corporate publications, newsletters, and internal blogs.
Support the creation of communications reports to measure content reach, engagement, and ROI.
Track content performance across channels (web, social, advertising, events) and feed learnings into future campaigns.
Collaborate closely with internal stakeholders across BD/Sales, Product, Strategy, Engineering, and Communications to gather insights, validate content, and align messaging.
What you’ll bring
The role requires the following experience and skills:
Proven experience in B2B content writing, copywriting, or spaneting communications—ideally in defense, aerospace, security, or high-tech sectors.
Exceptional writing, editing, and proofreading skills with attention to detail and audience awareness.
Ability to distil complex technical concepts into engaging and digestible content.
Experience managing editorial calendars, press release workflows, and campaign reporting.
Strong interpersonal skills, with the confidence to liaise at all levels within a global organization.
Highly organized, deadline-driven, and able to manage multiple priorities simultaneously.
Understanding of integrated spaneting campaigns
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.
As an equal opportunities employer, L3Harris is committed to the equal treatment of all current and prospective employees and does not condone discrimination on the basis of age, disability, sex, sexual orientation, pregnancy and maternity, race or ethnicity, religion or belief, gender identity, or marriage and civil partnership.
