Senior Sys Admin - Cloud & Security (Lisbon Hybrid)

Hexa Consulting; Lisboa; Hybrid; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Health insurance

Mental health support

Training and certification support

Flexible work arrangement

Family/childcare support

Job summary

Hexa Consulting in Lisbon is seeking a Senior Systems Administrator to manage IT infrastructure, security and optimization in a professional services setting. The role requires hybrid work with three days in the Lisbon office, strong Microsoft cloud skills and experience with security controls.

Responsibilities include administering MS 365, Azure, identity management, network services, backup/disaster recovery, and Azure DevOps. English proficiency is essential for collaboration across teams.

Qualifications

• 5+ years of experience in systems administration, infrastructure operations or similar IT roles.
• Solid experience managing Microsoft cloud and endpoint environments in secure business contexts.
• Ability to work with autonomy, ownership and structured problem‑solving in complex infrastructure scenarios.
• Professional working proficiency in English.

Responsibilities

• Administer and optimize Microsoft 365, Azure and identity management environments.
• Manage users, permissions, devices, access policies and security controls across the IT infrastructure.
• Support network administration, including Wi‑Fi, VPN, firewalls, DNS and DHCP.
• Ensure backup management, service continuity and disaster recovery readiness.
• Monitor infrastructure performance, analyze incidents and coordinate troubleshooting activities.
• Configure and maintain Azure DevOps environments, including projects, users, permissions and pipelines.
• Manage infrastructure documentation and provide technical coordination with external providers.
• Support information security and compliance requirements, including ISO/IEC 27001 and NIS2‑related practices.

Skills

Microsoft 365 Administration

Exchange Online

Active Directory

Windows Server

Identity and access management

Conditional Access

RBAC

Tools

Jira

Job description

Hexa Consulting in Lisbon is seeking a Senior Systems Administrator to manage IT infrastructure, security and optimization in a professional services setting. The role requires hybrid work with three days in the Lisbon office, strong Microsoft cloud skills and experience with security controls.

Responsibilities include administering MS 365, Azure, identity management, network services, backup/disaster recovery, and Azure DevOps. English proficiency is essential for collaboration across teams.