Senior M365 Security Engineer

Truesec Group; København; Hybrid; DKK 900,000 - 1,150,000; Full time

Job summary

Truesec is seeking a Senior Microsoft 365 Security Engineer for our Secure Infrastructure team in Denmark. You will design, implement and maintain client-facing security solutions across Microsoft 365 and Azure while ensuring high security posture and data protection.

The role emphasizes hands-on configuration, optimization of Purview/Intune, and collaboration with customers to meet technical requirements and project expectations.

Qualifications

• 5+ years of experience in Microsoft public cloud (M365 Security, Entra ID, Intune, Purview) including troubleshooting, deployment, and configuration.
• Experience with security services like Defender, Conditional Access and information protection.
• Ability to script and automate using PowerShell or Microsoft Graph.

Responsibilities

• Maintain, implement and design client-facing M365 Security and Azure solutions.
• Configure and optimize security and data protection policies across Microsoft 365 services.
• Run health and security checks within M365, Entra ID and Purview.
• Deliver trainings and workshops on M365 security best practices.

Skills

M365 Security

Entra ID

PowerShell

Microsoft Graph API

Defender

Data protection

Training delivery

Hybrid environments

GDPR knowledge

Tools

Purview

Intune

Microsoft Entra ID

Job description

Do you want to be at the forefront of protecting our society against cyber threats? We are looking for a Senior M365 Security Engineer to team up with the most dedicated team of cyber specialists in our Secure Infrastructure domain.

About Truesec – A Leading Cybersecurity Company

Since 2005, Truesec has been a native cybersecurity company, driven by one single purpose: Creating safety and sustainability in a digital world by preventing cyber breach and minimizing impact.

Over the years, we’ve earned the trust of organizations worldwide and gained a strong reputation internationally. Our team consists of dedicated specialists covering the entire spectrum of cybersecurity – with capabilities in Predict, Prevent, Protect, Respond, and Recover.

Today, we employ around 350 employees – and as cybercrime grows, we need to grow. To support that goal, we are now looking for a Senior M365 Security Engineer who wants to make a difference in our Secure Infrastructure domain.

Secure Infrastructure

Looking at the actual threat landscape today, it’s more important than ever to design and build infrastructure solutions that incorporate correct and relevant security features. The team works closely together using their combined knowledge and experience gathered from different projects and Incident Response cases to help our customers stay ahead of the threat actors. We continuously help customers improve their security posture within cloud, data center, endpoint management, identity, M365, and networking.

The Role

Truesec is looking for a Senior Microsoft 365 Security Engineer to our Secure Infrastructure team. The role interfaces regularly with team members and customers to determine technical requirements, feasibility of projects and expectations. You are responsible for maintaining, implementing, and designing client-facing solutions across Microsoft 365 Security and Azure.

This role is for someone who wants to be hands‑on in a technical role across Cloud Security, Identity Security and Data Security. You will work with security configurations and policies within M365 and Entra ID, while also configuring and optimizing Microsoft Purview capabilities. You will help customers protect users, identities, devices and critical data across Microsoft 365 services including Exchange, SharePoint, OneDrive, Teams and endpoints.

You will work closely with security specialists across Secure Infrastructure and have the opportunity to contribute to projects that combine M365 security, Purview and broader security initiatives.

Other responsibilities you might have can be:

Run health and security checks within M365, Entra ID and Microsoft Purview

Configure and optimize security and data protection policies across Microsoft 365 services

Provide customers recommendations and prioritization of how to improve their security and data protection posture over time

Implement solutions based on Statement of Work with customers

Deliver training and workshops to clients and colleagues within M365 security best practices

Your Potential Background

We believe that your background probably entails 5+ years of experience and expertise within the Microsoft public cloud, such as M365 Security, Entra ID, Intune and Microsoft Purview, including troubleshooting, deploying and configuring of said solutions. It’s likely that you have worked with a combination of identity, cloud security and data security, including areas such as Conditional Access, Defender, Microsoft Information Protection, sensitivity labeling, encryption, rights management, data classification and Data Loss Prevention.

You are comfortable working hands‑on with technical configurations while also being able to explain security concepts, risks and recommended actions to both technical and non‑technical stakeholders.

Required Skills:

Strong experience of the M365 Security platform

Strong experience of Entra ID

Ability to script and automate using PowerShell, Microsoft Graph or related APIs

Experience working with Microsoft security services such as Defender, Conditional Access or Intune

Ability to prioritize and create implementation plans for customers

Strong communication skills and ability to explain technical concepts to non‑technical stakeholders.

Comfortable in conducting trainings and workshops to clients and colleagues within M365 security best practices

Knowledge in Microsoft Purview

Bonus Skills:

Experience within Client Management

Understanding of M365 licensing, including licensing related to Microsoft Purview and Compliance features

Experience with hybrid environments

Experience with Insider Risk Management, Communication Compliance, Audit, eDiscovery or retention policies in Microsoft Purview

Familiarity with regulatory compliance requirements such as GDPR, NIS2, ISO 27001 or similar data protection regulations

Due to the sensitivity in our assignments, we require Danish citizenship, citizenship in an EU country, or a Danish work permit.

Join Our Mission Toward a Safe Digital Future

If you truly want to make a difference and make our world a little bit safer, this is the place for you. At Truesec, you’ll get to be at the forefront of fighting cybercrime instead of reading about it in the news. This is your chance to be part of an exciting journey in a leading cybersecurity company – and learn from some of the best in their field.

So, are you ready to team up with the most dedicated team of experts and be part of a meaningful mission? Then we are excited to get to know you!