Job Description

At IRIUM we want you to always chase your dreams. Here, prepare yourself to conquer your goals, while enjoying the journey.

We are currently looking for. AI Security Specialist

Requirements:

We are looking for a #TechTalent to work as a AI Security Specialist – Microsoft Copilot Backend & 3rd Level Support for an international project in the logistics sector.

🙂 YOUR DAY TO DAY

Performing regular security reviews of Copilot deployments and identifying threats such as prompt injection, model tampering, and data poisoning;
Implementing Identity and Access Management, Conditional Access policies, and Zero Trust principles for Copilot workloads;
Developing threat models and executing controlled security tests and red‑team activities;
Building monitoring capabilities, detecting anomalies, and responding to Copilot‑related security incidents;
Handling complex security, performance, and usage issues related to Copilot (Support 3rd level);
Enabling Copilot support staff through internal documentation, guardrails, and targeted trainings; defining escalation patterns and support standards together with the support organization;
Defining security controls and operational guardrails for Copilot usage;
Assessing custom Copilot plugins and third‑party integrations;
Analyzing Copilot data flows and validating encryption and protection mechanisms.

💡 WHAT WE'RE LOOKING FOR
Bachelor’s degree in Computer Science, Cybersecurity, Information Technology or a related field;
5+ years of experience in Cybersecurity;
3+ years in Microsoft 365 and Azure security;
Strong knowledge of Microsoft Defender, Entra ID, Conditional Access, Zero Trust, and threat modeling;
Practical experience with PowerShell, Python, or C# is required;
A Master’s degree in Cybersecurity, Information Security or Applied Cryptography is a plus;
Relevant security certifications (e.g. Microsoft Security, Azure Security, CISSP, AZ‑500) are beneficial and may substitute formal education;
Fluency in english.

Location: Lisboa, Porto, hybrid

What do we offer?

➡ An innovative and growing company, with a lot of opportunities for professional development.

➡ Retribution according to your experience and performance. Access to flexible pay and medical insurance as a social benefit.

➡ Unlimited access to technological training in free mode.

IRIUM is a company with dynamic and proactive professionals. Our values are responsibility and commitment to work quality. This is the spirit we are looking for at IRIUM, whatever your age is. If you recognize yourself in this, this is your company!

We can build the future together. Let’s talk!

Send your CV to: recrutamento@irium.pt

At IRIUM we defend a world without stereotypes or limitations and we believe in equality for all, principles that we subscribe to in our Equality Plan and Code of Ethics, guaranteeing equal treatment and opportunities regardless of any personal, physical or social condition.