Senior Windows Infrastructure Engineer

Location: Porto, Porto District, Portugal

Department: Alongside

Workplace: hybrid

Employment Type: full

Description

Alongside partners with organizations to drive digital transformation and build high-performing technology teams.

We are looking for a Senior Windows Infrastructure Engineer to join a project within a leading company in the financial sector.
You will be responsible for the administration, maintenance and continuous improvement of a large-scale enterprise Windows infrastructure supporting over 1,500 Windows servers across multiple international entities. Working as part of an experienced infrastructure team, you will combine project work with day-to-day operations, helping ensure the stability, security and performance of business-critical systems.

Responsibilities:

• Administer, maintain, and optimize enterprise Windows Server environments.
• Manage Active Directory services, including Group Policies, user and access management, security groups, and domain-related configurations.
• Administer and maintain large-scale Windows Server environments.
• Coordinate server patching, software deployment, security updates, and compliance activities.
• Develop and maintain automation scripts using PowerShell and other infrastructure automation tools.
• Apply Windows security hardening standards and contribute to vulnerability remediation.
• Monitor system performance, troubleshoot complex incidents, and support disaster recovery and business continuity activities.
• Maintain technical documentation and collaborate with Security, Network, IAM, and DevOps teams.
• Contribute to infrastructure modernization, automation, and continuous improvement initiatives.

Requirements

• 5+ years of experience in Windows systems administration.
• Strong Active Directory administration experience.
• Experience managing Group Policies, DNS and DHCP.
• Good PowerShell scripting skills.
• Experience with SCCM / MECM.
• Experience supporting enterprise Windows infrastructure.
• Strong troubleshooting skills.
• Fluent English.

Nice to Have

• Experience with Citrix or virtual desktop environments.
• Knowledge of Infrastructure as Code and automation tools.
• Experience with infrastructure monitoring platforms.
• Previous experience in financial services or other regulated environments.
• Microsoft or security-related certifications.

Benefits

• Opportunity to work on large-scale, business-critical infrastructure within an international environment.
• Exposure to modern infrastructure, automation, and cybersecurity practices.
• Collaborative and technically challenging project with experienced engineering teams.
• Hybrid work model (Porto).
• Competitive salary: €35.000 – €45.000, depending on experience.
• Continuous learning and professional development opportunities.