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About the Role

The AI & Automation Security Engineer is a hands-on role for engineers passionate about both AI and cybersecurity. This position has a dual focus: securing business AI systems and leveraging AI and automation to transform and scale the security function. You will collaborate across teams, applying and expanding your skills to deliver robust, production-ready protections and innovative security solutions at scale, with an emphasis on business impact and responsible practices.

Responsibilities

Securing business AI systems including AI-enabled applications, LLM models, agents, and supporting platforms across their full lifecycle.
Leveraging AI and automation to transform and scale the security function, through risk-based vulnerability management, alert enrichment, workflow orchestration, and CI/CD checks.
Leading design reviews, threat modelling and targeted implementation for critical AI initiatives.

Requirements

Solid grasp of security engineering fundamentals and familiar with common attack vectors and defence techniques.
Proven ability to build and deploy automation using code, APIs, and orchestration tools (e.g., Python, workflow engines, SOAR platforms).
Practical experience with AI/LLM systems and automation, including prompt engineering, retrieval augmented generation (RAG), function-calling, or agent-based tools.
Skilled at integrating security logs, AI models, and platform components into cohesive pipelines.
Effective communicator and collaborator, able to prioritise security risks based on business impact.
Demonstrated initiative, ownership, and adaptability in fast-paced, evolving environments.
Ability to work with senior stakeholders across infrastructure, engineering and risk to translate AI risks into actionable controls and standards.
Experience with vulnerability management or risk-based threat prioritisation.
Knowledge of securing AI agents or agentic workflows, including scoped permissions and approval processes.
Able to identify and put guardrails to prevent AI-specific security risks such as prompt injection, model hijacking, data leakage from LLM outputs, or configuration drift caused by AI assistants.
Ability to automate response workflows, enrich incident data, and assist with triage.
Awareness of frameworks like NIST AI RMF, OWASP for GenAI, or MITRE ATLAS.
Mentor security engineers on AI-related security challenges based on existing and emerging AI risk.
Understand the regulatory obligations of the firm, and abide by the regulated entity requirements and JHI policies applicable for your role.
Willing to adhere to the provisions of our Investment Advisory Code of Ethics related to personal securities activities and other disclosure and certification requirements, including past political contributions and political activities.

Skills

AI/LLM systems and automation
Prompt engineering
Retrieval augmented generation (RAG)
Function-calling
Agent-based tools
Python
Workflow engines
SOAR platforms
Security logs integration
AI models integration
Platform components integration
Communication
Collaboration
Risk prioritization
Initiative
Ownership
Adaptability
Stakeholder management
Vulnerability management
Threat prioritization
AI agent security
Agentic workflow security
Prompt injection prevention
Model hijacking prevention
Data leakage prevention
Automated response workflows
Incident data enrichment
NIST AI RMF
OWASP for GenAI
MITRE ATLAS

Location

Hybrid

Work Type

Hybrid working

Salary/Compensations

Annual Bonus Opportunity: Position may be eligible to receive an annual discretionary bonus award from the profit pool. The profit pool is funded based on Company profits. Individual bonuses are determined based on Company, department, team and individual performance.

Benefits

Hybrid working and reasonable accommodations
Generous Holiday policies
Excellent Health and Wellbeing benefits including corporate membership to Wellhub
Paid volunteer time
Support to grow through professional development courses, tuition/qualification reimbursement and more
Maternal/paternal leave benefits and family services
All employee events including networking opportunities and social activities
Lunch allowance for use within our subsidized onsite canteen
Competitive compensation
Pension/retirement plans
Various health, wellbeing and lifestyle benefits

About the Company

A career at Janus Henderson is more than a job, it’s about investing in a brighter future together.
Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right.
Our Values are key to driving our success, and are at the heart of everything we do: Clients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust

Equal Opportunity

Janus Henderson Investors is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.
All applications are subject to background checks.