Security & Infrastructure Engineer - Freelance

🚀 At Hays, we are collaborating with a public research and technology center based in Luxembourg, highly recognized for its work at the intersection of science, innovation, and applied digital transformation. It focuses on delivering cutting-edge solutions in areas such as artificial intelligence, data science, advanced materials, and environmental technologies, while fostering strong collaboration with industry and European institutions.Operating in a dynamic and international environment, it plays a key role in bridging research and real-world applications, with a strong emphasis on innovation, sustainability, and technological excellence.

🔍 We are currently looking for a Security & Infrastructure Engineer to support the remediation and hardening of an Active Directory environment following recent security assessments, ensuring a secure and robust enterprise infrastructure.

🎯 What are the requirements?

• Strong expertise in Active Directory security and architecture
• Experience with LDAP/LDAPS, SMB signing, DNS security
• Knowledge of AD hardening and tiered access models
• Experience in backup/recovery strategies
• Background in enterprise infrastructure and security environments
• Fluent English

📊 What will your responsibilities be?

• Analyze and improve Active Directory architecture and security
• Implement AD hardening and tiered administration models
• Manage and secure LDAP/LDAPS, SMB signing, and DNS configurations
• Define and support backup and recovery procedures
• Contribute to enterprise infrastructure security improvements
• Support operational handover and best practices implementation

💼 What do we offer?

• On site work model
• Location: Esch-sur-Alzette, Luxembourg
• Part-time freelance
• Competitive salary depending on experience.