Senior Windows & Linux Infrastructure Engineer

Nordea; Warszawa; Híbrido; PLN 240 000 - 320 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Hybrid working model

Career development opportunities

Resumo da oferta

Nordea Poland’s Core Infrastructure team maintains enterprise-scale Windows and Unix infrastructure, treating infrastructure as code to build secure, resilient platforms across on-premises, cloud, and mixed environments.

The role focuses on risk mitigation, security patching, regulatory compliance, and automation using Ansible, PowerShell, Git, Terraform, and CI/CD pipelines. You will collaborate with security, audit, and vendor teams to improve reliability and efficiency.

Qualificações

• 5+ years of experience in systems engineering, infrastructure administration, or platform operations within enterprise environments.
• Strong hands-on experience with Windows Server, Active Directory, Group Policy, and/or Linux administration (RHEL, Ubuntu).
• Experience in infrastructure security, vulnerability remediation, compliance, or operational risk management.
• Knowledge of security frameworks and hardening standards such as CIS Benchmarks, STIGs, or ISO 27001.
• Experience working with vulnerability management tools (e.g., Tenable, Qualys) and implementing remediation plans.
• Proficiency in automation and scripting using Ansible, PowerShell, or similar tools.
• Familiarity with Git, CI/CD pipelines, and Infrastructure or Policy as Code practices.
• Understanding of configuration management and compliance monitoring tools such as Terraform, Puppet, or Chef.
• Experience with logging, monitoring, and SIEM platforms such as Splunk or Microsoft Sentinel.

Responsabilidades

• Assess and mitigate technical infrastructure risks, including legacy systems, technical debt, unsupported platforms, and operational vulnerabilities.
• Develop and maintain security baselines, manage vulnerability remediation activities, and coordinate critical security patching across Windows and Linux environments.
• Ensure infrastructure compliance with internal policies and regulatory frameworks, while supporting audits and maintaining required technical documentation.
• Automate infrastructure and security processes using tools such as Ansible and PowerShell to improve consistency, efficiency, and scalability.
• Manage infrastructure configurations through Git-based workflows and CI/CD pipelines, ensuring changes are controlled, reviewed, tested, and traceable.
• Monitor and maintain secure, stable, and compliant server environments, proactively identifying and resolving issues.
• Provide expert support for complex operating system, performance, authentication, and security-related incidents, acting as the highest level of technical escalation.
• Collaborate with infrastructure, security, and application teams to implement improvements that enhance reliability, resilience, and operational efficiency.

Conhecimentos

Windows Server

Active Directory

Group Policy

Linux administration

Automation and scripting

Ansible

PowerShell

Git

CI/CD

Terraform

Puppet

Chef

Splunk

Microsoft Sentinel

Vulnerability management

Ferramentas

Ansible

PowerShell

Git

CI/CD

Terraform

Puppet

Chef

Splunk

Microsoft Sentinel

Descrição da oferta de emprego

Nordea Poland’s Core Infrastructure team maintains enterprise-scale Windows and Unix infrastructure, treating infrastructure as code to build secure, resilient platforms across on-premises, cloud, and mixed environments.

The role focuses on risk mitigation, security patching, regulatory compliance, and automation using Ansible, PowerShell, Git, Terraform, and CI/CD pipelines. You will collaborate with security, audit, and vendor teams to improve reliability and efficiency.