Quantum Security Engineer

City St George’s, University of London is the University of business, practice and the professions and brings together the expertise and excellence of City, University of London and St George’s, University of London into one institution. The combined university is now one of the largest higher education destinations for London students, combining a breadth of disciplines across health, business, policy, law, creativity, communications, science and technology. Our students are at the heart of everything that we do, and we are committed to supporting them to pursue their career and personal ambitions.

Our research is engaged, at the frontier of practice and has a positive impact on the world around us.

CSGUoL and Vivacom Ltd are recruiting for a candidate to develop novel network routers and algorithms that embed post quantum level security capability to safeguard against future cyber-security threats.

Vivacom's core business is delivering private, secure connectivity solutions to enterprise clients across the UK. The company specialises in fully managed Software Defined Wide Area Networks (SD-WAN), integrating advanced 5G, Wi-Fi, and emerging quantum-secure networking to help organisations modernise their infrastructure.

The Associate will be challenged to rapidly gain familiarity with Vivacom’s SDN and control and data planes, as well as Wi-Fi 6 and 5G protocol stacks, analysis of classical protocols and post-quantum vulnerability assessment.

Specifically, the candidate will develop and implement cryptographic protocols, deploy and test NIST standardised PQC algorithms, collect sufficient data to develop a Cryptographic Bill of Material, and configure open-source environments (e.g. Wi-Fi boxes).

We are looking for a candidate with an MSc or other Higher Degree in Computer Science, with a focus on post quantum cryptography. Knowledge of classical cryptographic algorithms and post quantum cryptographic algorithms is essential, as is experience in developing risk discovery and management of quantum security deployment.

The ideal candidate will have knowledge of signature schemes for PQC, QKD systems and QKD key management, as well as experience of commercial hardware configuration and deployment and experience of software and hardware test case development.

Closing date for applications: 3rd May 2026 at 11:59pm

Interviews are scheduled to take place: TBC

The selection process will involve an interview and presentation. Further details will be confirmed at the interview stage.

City St George’s offers a sector-leading salary, pension scheme and benefits including a comprehensive package of staff training and development.

City St George’s, University of London is committed to promoting equality, diversity and inclusion in all its activities, processes, and culture for our whole community, including staff, students and visitors.

We welcome applications regardless of age, caring responsibilities, disability, gender identity, gender reassignment, marital status, nationality, pregnancy, race and ethnic origin, religion and belief, sex, sexual orientation and socio-economic background. City St George’s operates a guaranteed interview scheme for disabled applicants.

The role is based at Vivacom’s offices in Harrow, Greater London

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