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Principal Systems Engineer

CoretechsecurityCheltenham🇬🇧United KingdomPosted 17 Sept 2026

Quick Overview

Seniority
Leader
Employment type
Full Time
Work mode
On Site
Location
Cheltenham, United Kingdom
Posted
16 hours ago

Job Description

Our Software Engineering team develops bespoke capabilities for clients in the Cyber Security domain. We may be building assured products that prioritise engineering rigour and reliability, rapid solutions that bring together existing tooling for high-impact results, or blended operational systems that combine software, hardware, networks and third-party technologies to address real-world challenges in the field.
 
Common to all is a commitment to technically led decisions, meaningful technical challenge, and seeing our work make it off the shelf and into the hands of our customers.
 
As our projects increasingly bring together multiple technologies and engineering disciplines, we are looking for a Principal Systems Engineer, operating as the systems architect and cross-discipline technical authority on our larger projects, to take technical ownership of complete systems from early concept through delivery and acceptance. This role may suit an experienced Systems Architect, Lead Systems Engineer or Technical Authority who wants to remain closely involved throughout integration and delivery. There is also opportunity to grow the scope of this role to encompass the professionalisation of engineering across multiple projects and teams. 
 
This role is about making sure we build the **right system**, not simply building individual components well. You will work with customers and engineers to understand operational problems, establish system requirements and architecture, make informed technical trade-offs, manage interfaces and guide systems through integration, verification and validation.
 
You will be equally comfortable discussing a customer's operational need, reviewing a software or network architecture, understanding the constraints imposed by a hardware component, and deciding how the complete system can be demonstrated to meet its requirements.
 
We're led by engineers and empowered to optimise our lightweight engineering processes with the knowledge gained from each project. We are not looking to introduce process for its own sake; we want systems engineering practices that help teams make better technical decisions, expose problems early and deliver dependable capability.
 
We are ideally looking for a candidate who holds an active Security Clearance to join our team; however, we will consider sponsoring new clearances for candidates who meet our technical requirements.

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