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Senior Security Engineer

Job in City, Vale of Glamorgan, EC1A2, Wales, UK
Listing for: 83zero Ltd
Full Time position
Listed on 2026-07-21
Job specializations:
  • IT/Tech
    AI Engineer (Applied/Software), Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 80000 - 90000 GBP Yearly GBP 80000.00 90000.00 YEAR
Job Description & How to Apply Below
Location: City

Salary: 80,000 - 90,000 per annum

Location:
London

What the role covers:

Designing, developing, optimizing, and enhancing a GenAI prompt security platform to protect firm AI/LLM-based applications from adversarial attacks and prompt injections.

  • Building and automating a security testing framework to validate protection mechanisms for various LLM use cases.
  • Owning solutions that are expected to operate and perform at scale across the organisation.
  • Collaboration with multiple stakeholders and partners across Engineering and Operations as well as partner teams within the wider Citi organisation, across different time zones.

Job Skills/ Qualifications:

Highly motivated self-starter with excellent interpersonal and problem-solving skills

  • Bachelor's degree or equivalent work experience
  • Good oral and written communication skills
  • 7+ years of relevant industry work experience
  • Experience of the full lifecycle of design, implementation and running of enterprise software solutions involving cross functional team collaboration
  • Expertise in a major programming language such as Python and/or Go, and associated tooling (Git, Maven, IDEs, Jenkins etc)
  • Expertise in designing and implementing secure APIs and libraries.
  • Experience in Generative AI, LLM frameworks, LLM prompt engineering and/or adversarial testing is a bonus.
  • Experience with Cyber engineering and Operations, which could include Dev Sec Ops  or MLSecOps.
  • Experience contributing to the architecture and design (architecture, design patterns, reliability, scaling) of new and current systems
  • Experience in containerized deployment (Kubernetes, Open Shift etc).
Position Requirements
10+ Years work experience
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