Graduate Systems Engineer (Sept 2026)

Harris Geospatial Solutions; Tewkesbury; Hybrid; GBP 30,000 - 40,000; Full time

Job summary

A leading defense technology company in the UK is seeking Graduate Systems Engineers to support the development of complex Information Resilience and Electronic Warfare Systems. The role requires a degree in a relevant field, excellent interpersonal skills, and a willingness to learn. The position offers a hybrid working model, generous holiday allowance, private medical insurance, and a structured training program.

Benefits

Hybrid working

Half day finish on Friday

25 days holiday per year

Private medical insurance

Pension scheme

Life Assurance

Employee assistance program

Professional membership reimbursement

Qualifications

• Basic understanding of Systems Engineering concepts.
• Some knowledge in electronics and RF systems.
• Demonstrable passion for technology and innovations.

Responsibilities

• Support the development of Information Resilience and Electronic Warfare Systems.
• Contribute to design solutions and create technical proposals.
• Write and run system tests and participate in acceptance testing.

Skills

Understanding of Systems Engineering

Software development (C, C++ or Python)

Interpersonal skills

Problem-solving abilities

Knowledge of RF systems

Passion for technology

Education

2:1 or above in Engineering, Systems Engineering, Computer Science or Physics

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 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 – Graduate Systems Engineer

Start Date - September 2026

Job Location – Tewkesbury, Gloucestershire

Job ID – 28743

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.

We are looking for Graduate Systems Engineers to support the development of complex Information Resilience and Electronic Warfare Systems. Reporting to one of our Systems Engineering Leads and working in a cross-functional team, you will develop design solutions and contribute to the generation of technical proposals, bids and presentation, playing a critical part in our key engineering programmes.

You’ll also support the test and qualification strategy for solutions and sub-systems through writing and running system tests. Where possible, you’ll also have the opportunity to participate in trials, customer demonstrations and onsite acceptance testing both in the UK and overseas.

Please note, applications will close on Monday 31st October.

A few of our employee benefits are:

• Hybrid working where possible - please note, the business expectation is 65% of your working time should be onsite over a one-month period
• 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
• Employee Resource Group support

What you can expect:

• Immersive induction into L3Harris – who we are and how we work
• Structured technical training programme delivered through the School of Systems Engineering
• Personal development workshops to support your career progression
• A dedicated support structure with a peer buddy, your manager, a project mentor and our Early Careers Lead
• Membership to our internal Early Careers network, Cerebrum, and other Employee Resource Groups to build your community
• Funded IET membership and the opportunity to work towards professional registration

What you’ll bring

The role requires the following experience and skills:

• 2:1 or above in Engineering, Systems Engineering, Computer Science or Physics
• Basic understanding of Systems Engineering such as Requirements, Architectural design, Integration and/or Verification.
• Some knowledge of electronics is desirable, preferably including aspects of RF systems (e.g. Communications, Radar or Electronic Warfare).
• Some experience of software development preferably C, C++ or Python
• Excellent interpersonal skills and able to communicate effectively with technical and non-technical audiences
• Willingness to learn and tenacious approach to problem solving
• Demonstrable passion for technology and keeping up to date with latest innovations

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.