Graduate Systems Engineer
September 2026
Tewkesbury, Gloucestershire
Job ID 28743
Overview
L3Harris Technologies is the trusted disruptor in the defense industry, delivering end‑to‑end technology solutions across space, air, land, sea and cyber. Our Tewkesbury HQ leads the Intelligence & Cyber International division, supporting military, security and commercial customers worldwide.
Responsibilities
* Develop complex Information Resilience and Electronic Warfare systems, supporting design solutions and generating technical proposals.
* Write and run system tests, supporting the test and qualification strategy for solutions and subsystems.
* Participate in trials, customer demonstrations and onsite acceptance testing in the UK and overseas.
Qualifications
* 2:1 or above in Engineering, Systems Engineering, Computer Science or Physics.
* Basic understanding of Systems Engineering concepts such as requirements, architectural design, integration and verification.
* Desirable knowledge of electronics, especially RF systems (communications, radar, electronic warfare).
* Experience in software development, preferably C, C++ or Python.
* Excellent interpersonal skills with the ability to communicate effectively with technical and non‑technical audiences.
* Willingness to learn and tenacious problem‑solving approach.
* Passion for technology and keeping up to date with latest innovations.
Benefits
* Hybrid working – 65% onsite required over a one‑month period.
* Half‑day finish on Friday.
* 25 days holiday per year (plus bank holidays), increasing with long service and the option to buy/sell up to 5 days.
* Private medical insurance with optional family cover.
* Pension scheme with up to 7% employer contribution.
* Life assurance 4× salary (flexible up to 10×).Group income protection.
* Optional extras: health‑care cash plan, dental insurance, gym membership, critical illness cover, cycle‑to‑work scheme.
* Employee assistance program for mental health and wellbeing.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, manager, project mentor and Early Careers Lead.
* Membership to our internal Early Careers network, Cerebrum, and other Employee Resource Groups.
* Funded IET membership and support towards professional registration.
Application Deadline
Applications close on Monday, 31st October.
Equal Opportunity
L3Harris Technologies is a proud 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.
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