System Administrator

Cognizant; Amsterdam; On-site; 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

Only candidates, with existing Netherlands/EU work authorization should apply, Sponsorship is not provided for this role.

About the Role

As a System Administrator, you will make an impact by taking ownership of enterprise Windows & Red Hat Linux platforms, ensuring seamless access services, and safeguarding the systems that business operations depend on every day. You will be a valued member of the Infrastructure team and work collaboratively with infrastructure, security, and cloud teams to maintain the health, security, and resilience of core enterprise infrastructure.

In This Role, You Will:

• Monitor and resolve platform health issues to ensure system consistency and availability.

• Troubleshoot authentication failures and related access issues across enterprise systems.

• Respond to and remediate large-scale outages impacting multiple systems and services.

• Diagnose and fix service failures, including performance degradation and resource constraints.

• Maintain system integrity, manage policy changes, and execute regular health checks across enterprise servers and supporting infrastructure.

• Maintain and continuously update documentation covering system dependencies and integrations.

• Collaborate with infrastructure, security, and cloud teams to resolve complex, cross-domain incidents.

Work Model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role's business requirements, this is a hybrid position. Regardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What You Need to Have to Be Considered

• 5+ years of experience in Windows & Red Hat Linux administration.

• Strong expertise in enterprise directory services and related administration.

• Solid understanding of authentication protocols and access delegation.

• Hands-on experience with enterprise policy and configuration management tools.

• Working knowledge of certificate and public key infrastructure (PKI) management.

• Advanced knowledge of enterprise server administration across common operating systems.

• Proficiency in scripting for automation and troubleshooting.

• Proven ability to diagnose and resolve complex identity and system-level issues in enterprise environments.

These Will Help You Stand Out

• Experience managing large-scale, multi-site enterprise environments.

• Exposure to hybrid identity setups or integration with cloud identity providers.

• Familiarity with automation and configuration management tools.

• Strong background in incident management and root cause analysis (RCA).

• Knowledge of ITIL frameworks and structured operational processes.

What We Offer

• 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