Ai Security Engineer

Porto - Portugal

Monthly Salary: Not Disclosed

Posted on: Yesterday

Vacancies: 1 Vacancy

Job Summary

We are looking for an AI Security Engineerto join our Security Ai Operations teamin Portooffice where you will have the opportunity tolead the design implementation and governance of secure AI systems built on Microsoft Azure AI Foundry and Copilot agent frameworks. You will be the primary owner of AI-specific security controls responsible for safeguarding model pipelines agentic workflows and enterprise data from emerging threats in the generative AI landscape.

Key Accountabilities

AI Platform Security Azure AI Foundry

Design and enforce security baselines for Azure AI Foundry workspaces including network isolation private endpoints managed identity configurations and role-based access control (RBAC).

Conduct threat modelling for model training and inference pipelinesidentifyingrisks such as model inversion data poisoning and supply chain compromise.

Implement andmaintainencryption-at-rest and in-transit controls for model artefacts training datasets and inference outputs stored in Azure Blob Storage and Azure Data Lake.

Define and audit Azure Policy assignments to enforce guardrails across AI resource groups preventing misconfiguration at scale.

Evaluate and harden Azure AI Foundry Prompt Flow deployments reviewing flow logic external connectors and output sanitisation.

Copilot Agent Security

Assess and secure Microsoft Copilot Studio agents and custom Copilot extensions focusing on plugin trust boundaries Graph API permission scopes and data exfiltration vectors.

Develop and test countermeasures against prompt injection jailbreaking and indirect instruction attacks targeting deployed agents.

Review and approve connector configurations for Copilot agents accessing enterprise systems (SharePoint Dynamics third-party APIs) applying least-privilege principles.

Build automated adversarial test suites (red-teaming pipelines) that continuously probe production agents for policy violations sensitive data leakage and behavioural drift.

Collaborate with Microsoft Purview and Defender for Cloud teams to extend data loss prevention (DLP) policies to AI-generated outputs.

Model Governance & Compliance

Own the AI model risk register documenting risk ratings residual risks and accepted exceptions for all models in production.

Map AI system controls to relevant frameworks including ISO 42001 NIST AI RMF EU AI Act requirements and internal enterprise risk policies.

Design model card and system card templates that capture security-relevant metadata (training data provenance known limitations misuse potential) for all deployed models.

Lead periodic AI security reviews producing actionable remediation plans with severity ratings aligned to CVSS and OWASP LLM Top 10.

Support audit legal and procurement teams with third-party AI vendor security assessments and due diligence questionnaires.

SkillsRequiredto be successful in the role:

Minimum 3 years of higher education in IT cybersecurity or risk management or equivalent experience

BSc in Cybersecurity preferred

BSc Computer Science Economics International affairsLawor equivalent

Knowledge and passion about IT and Information Security

Fluency in both spoken and written English

Strong experience inAzure cloud security including RBAC managed identities and network isolation

Proven ability to design and enforcesecurity controls and policiesin cloud environments (e.g. Azure Policy)

Solid understanding ofAI/ML security risks including prompt injection data poisoning and model vulnerabilities

Hands-on experience withthreat modellingand risk assessment methodologies

Knowledge ofencryption standardsand secure data handling (at rest and in transit)

Experience securingAI/ML pipelines(training deployment and inference)

Familiarity with Microsoft security ecosystem (e.g. Azure AI Copilot Graph API Defender Purview)

Ability to implementautomated security testing and red-teamingpractices

Strong communicationskills with the ability to translate technical risks intobusiness-relevant insights

Good verbal communications skills;

Excellent organizational skills;

Pro-active and sense of ownership;

bysubmittinga CV in English.

Join Euronext Shape capital markets for future generations

Euronext is the leading European capital market covering the entire capital markets value chainfrom listing trading clearing settlement and custodyto solutions for issuers and investors. Weoperateseven national stock exchanges handling 25% of European lit equity trading. Our products include equities FX ETFs bonds derivativescommoditiesand indices. Euronext also provides clearing and settlement services through Euronext Clearing and our network of Euronext Securities addition Euronext runs MTS one of Europes leading electronic fixed income trading markets and Nord Pool the European power market. The company has a diverse domestic and international client base.

Find out more about us at:Euronext.com

Euronext Values

Unity

We respect and value the people we work with

We are unified through a common purpose

We embrace diversity and strive for inclusion

Integrity

We value transparency communicate honestly and share information openly

We act with integrity in everything we do

We dont hide our mistakes and we learn from them

Agility

We act with a sense of urgency and decisiveness

We are adaptable responsive and embrace change

We take smart risks

Energy

We are positively driven to make a difference and challenge the status quo

We focus on and encourage personal leadership

We motivate each other with our ambition

Accountability

We deliver maximum value to our customers and stakeholders

We take ownership and are accountable for the outcome

We reward and celebrate performance

We are proud to be an equal opportunity employer. We do not discriminate against individuals on the basis of race gender age citizenship religion sexual orientation gender identity or expression disability or any other legally protected factor. We value the unique talents of all our people who come from diverse backgrounds with different personal experiences and points of view and we are committed to providing an environment of mutual respect.

Additional Information

This job description is only describing the main activities within a certain role and is not exhaustive. It does not prevent to add more tasks projects.

Required Experience: