Senior System Administrator - Hybrid (Windows & Linux)

Cognizant; Amsterdam; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Competitive salary

Pension scheme

25 paid holidays per year

NS business card

Laptop and smartphone

Access to Udemy and Cognizant Academy

Technology-driven organization

Open team spirit

International working environment

Job summary

Cognizant in Amsterdam is seeking a System Administrator to own enterprise Windows and Red Hat Linux platforms, ensure access services, and safeguard systems that drive business operations. You will join the Infrastructure team and collaborate with security, cloud, and operations staff.

The role emphasizes health checks, incident response, policy management, and documentation, with a hybrid work model designed to balance flexibility and excellence in a technology-driven environment.

Qualifications

• 5+ years of Windows and Red Hat Linux administration.
• Expertise in enterprise directory services.
• Strong knowledge of authentication protocols and access delegation.
• Hands-on with policy and configuration management tools.
• PKI management knowledge.
• Advanced server administration across common OS.
• Scripting for automation and troubleshooting.
• Ability to diagnose complex identity and system issues.

Responsibilities

• Monitor and resolve platform health issues to ensure availability.
• Troubleshoot authentication failures across enterprise systems.
• Respond to large-scale outages affecting multiple services.
• Diagnose and fix service failures and performance issues.
• Maintain policy changes and health checks across servers.
• Document system dependencies and integrations.
• Collaborate with infra, security and cloud teams on incidents.

Skills

System administration

Scripting

Troubleshooting

Incident management

IAM/Identity management

Tools

Policy management tools

PKI tooling

Configuration management tools

Job description

Cognizant in Amsterdam is seeking a System Administrator to own enterprise Windows and Red Hat Linux platforms, ensure access services, and safeguard systems that drive business operations. You will join the Infrastructure team and collaborate with security, cloud, and operations staff.

The role emphasizes health checks, incident response, policy management, and documentation, with a hybrid work model designed to balance flexibility and excellence in a technology-driven environment.