Octagon Group
System Engineer

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New System Engineer Job Based in Southampton, Hampshire
Location
Southampton
Hybrid
Due to continued growth, we have a brand-new opportunity for a Systems Engineer to join a leading defence technology company based in Southampton.
As a Systems Engineer, you’ll play a key role in delivering complex technical systems from concept through to completion. Working closely with engineers, project managers, and customers, you’ll ensure all components are successfully integrated and meet the required specifications. This is a customer-facing role where you’ll be involved across the full engineering lifecycle.
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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
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Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
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Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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Main Responsibilities of the Systems Engineer Job in Southampton:
- Capture and manage customer and internal system requirements
- Develop and oversee system architecture
- Support system integration, verification, and validation
- Act as the link between customers, project managers, and engineering teams
- Produce and maintain technical documentation and system configuration
About the Systems Engineer Job in Southampton
- STEM degree or equivalent experience
- Proven background in Systems Engineering
- Strong knowledge of requirements management, verification, and validation
- Confident communicator able to work with cross-functional teams


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Desirable
- Experience within defence, military, or aerospace industries
- Knowledge of electro-optical systems
What’s on Offer for the Systems Engineer in Southampton:
- Competitive salary
- Hybrid working
- Private health and dental cover
- Share scheme
- Increasing holiday allowance with service
- Excellent career development opportunities
If Interested in this Systems Engineer Job based in Southampton please send in an application or you can also contact Keelan Riley on kriley@octagongroup.co.uk or call 01525 664852 for more information.
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