AI Security Engineer

Academic Key; United Kingdom; Remote; GBP 70,000 - 110,000; Full time

Job summary

BJAK is expanding its AI security program in the United Kingdom, seeking an AI Security Engineer to protect AI-enabled products and agent workflows. You will assess data shared with model vendors, implement least-privilege controls, and test for prompt injection across prompts, history, and untrusted content.

You will design tenant and user data isolation, collaborate with Product and Engineering on safe ingestion and output validation, and support regulatory controls across SC TRM and BNM RMiT.

Qualifications

• Degree in Computer Science, Cybersecurity, AI, or related field or equivalent experience.
• 3+ years in application security, product security, security engineering, or AI system security.
• Experience implementing SC TRM and BNM RMiT controls or equivalent regulatory evidence.
• Understanding of third-party LLM integrations and AI architectures.
• Programming or scripting skills, preferably Python and TS/Node.js, plus APIs and cloud platforms.

Responsibilities

• Secure AI-enabled products and agent workflows with least-privilege controls and explicit authorization.
• Assess data shared with model vendors, minimize exposure, and ensure data isolation.
• Test for prompt injection and indirect injection across prompts, history, and documents.
• Collaborate with Product and Engineering on safe data ingestion, output validation, and approvals.
• Support risk management and regulatory evidence with practical controls and communications.

Skills

Python

TypeScript/Node.js

APIs

AWS

GCP

English communication

Education

Degree in Computer Science, Cybersecurity, AI, or related field

Tools

LLM Integrations

Cloud APIs (AWS/GCP)

Job description

# AI Security Engineer**Bjak** · United KingdomAbroad United Kingdom◷ Full Time✓ Link validatedAbout BJAK The original mission of BJAK is we believe people deserve smarter ways to plan, save and grow their money. This is the origin of our name. Started in 2019, we built the first mobile-first, insurance platform, enabling insurance to be accessible online by millions in the region. Today, its the leading insurance platform in Southeast Asia. Today, we are expanding ways to help people in the region — this includes spending, saving, investing, exchanging, travelling, and more. Our mission is help people get more from their money every day. We have teams working around the world, with over 20 nationalities from our offices and remotely, who truly enjoys their work. We are looking for the most talented and driven people we can find. We are looking for people who work for their passion, not counting hours. Who loves building great next-generation products, not status quo. Who cares about redefining how everyone around us can get the best financial applications, not for an exclusive few. If you're this person, we'd love to talk to you. The Role Secure BJAK's AI-enabled products and agent workflows using third-party models. Focus on customer data shared with model providers, agent permissions, user data isolation, and prompt injection through uploaded documents and other untrusted content. What You Will Build Assess customer data sent to third-party model vendors, including minimization, vendor controls, retention, logging, and approved use. Design controls limiting AI agent permissions, tools, actions, and system access using least privilege and explicit authorization. Implement and test tenant and user data isolation across prompts, conversation history, retrieval, memory, and AI-connected services. Threat model and test prompt injection and indirect injection through uploaded documents, retrieved content, links, and other untrusted inputs. Partner with Product and Engineering on safe document ingestion, content handling, output validation, and approval for sensitive actions. Support SC TRM and BNM RMiT for AI technology risks, including assessments, third-party oversight, control evidence, and remediation. Build security tests, monitoring, and response procedures for AI misuse, data exposure, unauthorized actions, and vendor incidents. What We Look For Degree in Computer Science, Cybersecurity, AI, or related field, or equivalent experience. 3+ years in application security, product security, security engineering, or AI system security. Experience implementing or owning SC TRM and BNM RMiT controls, technology risk, or regulatory control evidence. Understanding of third-party LLM integrations, model APIs, agent tools, RAG, and AI application architectures. Knowledge of prompt injection, indirect injection, cross-user data leakage, excessive agent permissions, and vendor data disclosure risks. Programming or scripting skills, preferably Python and TypeScript/Node.js, plus APIs and AWS or GCP. Able to collaborate with Product, Legal, Compliance, Data, and Engineering on practical controls and risk communication. Language English is our main working language across global teams. Strong English communication is required. Find more English Speaking Jobs in United Kingdom on Arbeitnow