System Administrator

Adentis Portugal; Lisboa; Híbrido; EUR 32 000 - 52 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Work-life balance

Flexible schedule

Health benefits

Employee discounts

Training & Certification

Performance feedback

Career progression

Resumo da oferta

Adentis Portugal is recruiting a Windows System Administrator to manage Windows Server and Active Directory with Exchange/Office 365 responsibilities. You will maintain AD objects, handle DNS/DHCP, and ensure security and compliance across environments.

The role requires hands-on AD management, scripting, and collaboration with security and IT teams. A hybrid on-site presence two to three days per week is expected in Lisbon, Portugal.

Qualificações

• Proven experience as a Windows System Administrator with hands-on Active Directory management.
• Strong knowledge of Windows Server, AD, GPOs, DNS, DHCP and authentication mechanisms.
• Experience with scripting (PowerShell) for automation and administration tasks.
• Proven experience administering Microsoft Exchange and Office 365 environments.
• Strong knowledge of Exchange Online, Exchange Hybrid, mail flow, security and compliance features.

Responsabilidades

• Administer, maintain and support Windows Server environments with a strong focus on Active Directory.
• Manage AD objects, including users, groups, computers, GPOs and permissions.
• Monitor, troubleshoot and resolve issues related to AD, DNS, DHCP and authentication services.
• Administer, maintain and support Microsoft Exchange (Online and/or On-Prem) and Office 365 environments.
• Ensure system availability, performance, security and compliance with internal standards.
• Perform regular system updates, patching, backups and recovery tests.
• Collaborate with infrastructure, security and support teams on ongoing operations and projects.
• Document configurations, procedures and operational processes.

Conhecimentos

Windows Server

Active Directory

GPOs

DNS

DHCP

PowerShell

Exchange Online

Office 365

Troubleshooting

Stakeholders

Communication

Ferramentas

Azure

AWS

VMs

Descrição da oferta de emprego

With just over 9 years of experience in the Portuguese market, we share our DNA with more than 200 workers and position our offer according to 3 lines of service:

• Strategy (Outsourcing, NeXel, Team as a Service, Tech Academies);
• Nearshore.

In ADENTIS, we focus on PEOPLE. This is our emotional salary:

• Great Work-Life balance;
• Very flexible organizational routine;
• Health benefits (for you and your family);
• Over 300 protocols to offer you great discounts in different areas;
• Continuous professional development sponsored by our Training and Certification Department;
• Regular feedback on your performance through a personalized plan;
• Comprehensive career plan and progression involving assertive performance reviews.

Responsibilities

• Administer, maintain and support Windows Server environments with a strong focus on Active Directory.
• Manage AD objects, including users, groups, computers, GPOs and permissions.
• Monitor, troubleshoot and resolve issues related to AD, DNS, DHCP and authentication services.
• Administer, maintain and support Microsoft Exchange (Online and/or On-Prem) and Office 365 environments.
• Ensure system availability, performance, security and compliance with internal standards.
• Perform regular system updates, patching, backups and recovery tests.
• Collaborate with infrastructure, security and support teams on ongoing operations and projects.
• Document configurations, procedures and operational processes.

You must have

• Proven experience as a Windows System Administrator with hands-on Active Directory management.
• Strong knowledge of Windows Server, AD, GPOs, DNS, DHCP and authentication mechanisms.
• Experience with scripting (PowerShell) for automation and administration tasks.
• Proven experience administering Microsoft Exchange and Office 365 environments.
• Strong knowledge of Exchange Online, Exchange Hybrid, mail flow, security and compliance features.
• Good troubleshooting and problem-solving skills.
• Ability to communicate effectively with technical and non-technical stakeholders.
• Experience working in structured environments and following operational procedures.
• European Union Citizenship or Portuguese Working Visa / Portuguese Residency.
• Availability to work on-site two to three times per week.

Plus

• Knowledge in cloud administrator technologies like Microsoft Azure and/or AWS.