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We're looking for a reliable, experienced Security & Infrastructure Engineer (3–7 years in IT, cloud and security) to join our growing defence AI company in central Oxford, helping our teams stay productive, cyber-compliant and protected as we scale. We develop and deliver mission-critical uncrewed aircraft subsystems, so reliability, problem solving skill and adaptability really matter.
This role sits at the intersection of IT operations, cloud infrastructure, and cyber security.
You will work closely with a fractional Security Lead, deputy CTO, COO, IT manager plus other external CISO and consultants as relevant. You will be supporting delivery of a structured security programme while ensuring day-to-day systems remain secure, reliable, and efficient.
This is a hands-on role suited to someone who enjoys both solving operational IT issues and implementing modern security controls in a fast-paced, high-assurance, advanced environment. You will play a key role in transitioning the company toward a security-first infrastructure model.
How you will make an impact
To succeed in this role, you must have:
It is a plus if you also have:
By joining us, you'll have:
Security clearance:
Due to the sensitive nature of some of our work, it would be beneficial for candidates to be able and willing to obtain and maintain the necessary security clearance for this role.
Location
This is an office-based role in Oxford. You'll work alongside leading engineers, AI specialists, and industry pioneers, contributing directly to cutting-edge advancements in autonomous technology.
The Archangel Experience
We are makers and engineers first, driven by the desire to solve challenges that matter. Automation is how humanity moves forward and for us it’s more than a method; it is a mindset- central to how we streamline work and deliver cutting edge solutions that make a real difference.
Our culture is grounded in high integrity, teamwork, and a shared pursuit of excellence. Learning never stops here. We prioritise growth, knowledge sharing, and collaboration so every team member is empowered to thrive. We are looking for people who are proactive, collaborative, and passionate about purpose led technology. If you are excited by meaningful challenges, thrive in fast paced environments, and want to build technology that supports solving real-world problems, you will feel right at home.
So, what’s next?
Apply now, and a member of our HR team will get in touch with you shortly. Our usual process includes reviewing your CV, a 30-minute phone screening, a live technical assessment and interview, plus if your interview falls on a Monday, you might even get to enjoy lunch with the team!