AI Security Specialist – Microsoft Copilot Backend & 3rd Level Support

About Us

Planck Technologies is a company specialized in Software Development, dedicated to shaping futures and creating value through innovative IT solutions. By expanding teams and offering a comprehensive range of services — from Software Development and Infrastructure Management to Cybersecurity — we empower clients with all the expertise they need in one place. Inspired by the principles of quantum physics, we push beyond traditional boundaries to deliver customized solutions that redefine the IT landscape and drive shared success.

About the job 

What are we looking for?

We are looking for an AI Security Specialist to ensure the secure operation of Microsoft Copilot, covering identity, access management, data flows and integrations, while operating within advanced Microsoft cloud environments.

Requirements:

• 5+ years of experience in Cybersecurity
• 3+ years of experience with Microsoft 365 and Azure security
• Strong background in Cybersecurity within Microsoft ecosystems
• Advanced knowledge of Microsoft Defender, Entra ID (Azure AD), Conditional Access and Zero Trust
• Hands-on experience with threat modeling, security testing and red‑team activities
• Practical programming/scripting experience with PowerShell, Python or C#
• Bachelor’s degree in Computer Science, Cybersecurity, Information Technology or a related field
• Security certifications (e.g. Microsoft Security, Azure Security, AZ‑500, CISSP) are highly valued
• Fluent English (spoken and written)
• Advanced Portuguese (spoken and written)
• A Master’s degree in Cybersecurity or Information Security is a plus.

Responsibilities:

• Perform regular security assessments of Microsoft Copilot deployments
• Identify and mitigate threats such as prompt injections, model tampering and data poisoning
• Design and implement security architecture and hardening for Copilot workloads
• Develop threat models and conduct controlled security and red‑team testing
• Build monitoring frameworks and lead incident detection and response
• Act as 3rd level support, resolving complex security, performance and usage issues
• Define security policies, controls and operational guardrails for Copilot usage
• Assess the security of custom Copilot plugins and third‑party integrations
• Analyse data flows, validating encryption and protection mechanisms
• Enable support teams through documentation, training, guardrails and escalation standards.

Working Model:

• Hybrid – 1 to 2 days/week at the client’s location, in a region near Lisbon.

We are looking forward to hearing from you! Be part of a company that is redefining the future through technology!

NOTE: In accordance with the EU General Data Protection Regulation No. 2016/679, we inform you that by responding to this advertisement, you consent to the use of your data by Planck Technologies for as long as necessary. If you have any questions or would like to request the deletion of your personal data, please send an email to geral@planck.pt.