AI Security Engineer Coverletter Abigail Hussain AI Security Engineer 07700 90XXXX abigail.hussain@example.com https://linkedin.com/example/abigailhussain Leeds, West Yorkshire, LS6 2AB Contact Address Leeds, West Yorkshire, LS6 2AB Phone 07700 90XXXX Email abigail.hussain@example.com LinkedIn https://linkedin.com/example/abigailhussain Website abigailhussain-example.com 24 October 2026 Hiring Manager Calderstone Digital 1 Wellington Place Leeds, West Yorkshire, LS1 4AP Dear Hiring Manager, I am writing to apply for the AI Security Engineer role at Calderstone Digital. I have more than 12 years in cybersecurity, including five years securing machine-learning and Generative AI systems, and I am keen to help enterprise teams adopt AI securely. Calderstone’s focus on protecting AI across its lifecycle closely matches the work I do now in Leeds. In my current role at Meridian Vale Technologies, I lead red-team exercises against AI-enabled applications , testing prompt injection , jailbreaks, model manipulation , data leakage and adversarial attacks. I turn findings into prioritised mitigations and repeatable regression tests, giving engineering teams practical ways to address identified weaknesses before release and during operation. I also build protection into the systems and delivery processes around models. At Meridian Vale, I designed guardrails and monitoring for model access, sensitive-data handling and unsafe outputs, and integrated Python-based security checks into CI/CD workflows. Earlier, at Brightforge Systems, I assessed prompt-injection and data-leakage risks in emerging LLM prototypes and worked with developers on validation and access-control safeguards. My wider background in cloud security , secure configuration management and DevSecOps helps me assess model environments from development and training through evaluation and deployment. I work closely with data scientists, engineers, architects and governance and risk teams to turn technical findings into clear control requirements and useful risk evidence. I would value the opportunity to contribute this experience to Calderstone’s enterprise AI security work. Thank you for considering my application. I would welcome the opportunity to discuss how my AI security and cybersecurity experience can support Calderstone Digital’s work. Yours faithfully, Click to edit Draw your signature below Clear Generate Signature Save X Abigail Hussain
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