Senior IT Infrastructure & Cloud Security Engineer

Key Responsibilities:

• Manage and maintain the company's IT infrastructure, including on-premises servers, Windows Server, Active Directory, DNS, DHCP, Group Policy and File Servers.

• Administer Microsoft 365, Exchange Online, Entra ID, user accounts, access permissions and email security.

• Coordinate with external vendors on IT infrastructure projects.

• Manage and troubleshoot network infrastructure, including firewalls, switches, routers, VPN and Wi-Fi across office and warehouse locations.

• Manage and oversee AWS infrastructure, including EC2, RDS, S3, VPC, IAM and related cloud services.

• Implement and review AWS security controls, including IAM policies, MFA, Security Groups, CloudTrail, GuardDuty and security monitoring.

• Manage Cloudflare configurations, including DNS, SSL/TLS, WAF and website security settings.

• Monitor server and cloud infrastructure performance, availability, security alerts and potential vulnerabilities.

• Maintain system backups, disaster recovery procedures and business continuity plans.

• Perform regular security reviews, patch management, vulnerability assessments and access control audits.

• Coordinate and supervise external IT vendors / Managed Service Providers (MSPs) for AWS, server infrastructure, security and technical support.

• Provide Level 2/3 technical support and escalation for complex IT issues.

• Supervise and guide the existing IT Support staff to ensure effective daily IT operations.

• Maintain IT documentation, system inventories, network diagrams and standard operating procedures.

• Recommend and implement infrastructure improvements, security enhancements and IT best practices.

• Handle IT incidents, root cause analysis and preventive actions to minimize business disruption.

Requirements:

• Minimum 5 years of hands-on experience in IT infrastructure, system administration or related technical roles.

• Strong knowledge of Windows Server, Active Directory, Group Policy, DNS, DHCP and networking.

• Hands-on experience in Microsoft 365, Exchange Online and Microsoft Entra ID administration.

• Practical experience managing AWS production environments, particularly IAM, networking, infrastructure security and monitoring.

• Solid understanding of cybersecurity principles, access controls, vulnerability management and incident response.

• Experience with firewalls, VPN, virtualization (VMware / Hyper-V) and backup solutions.

• Experience managing external IT vendors and coordinating technical projects.

• Strong troubleshooting, problem-solving, documentation and communication skills.

• Self-motivated, responsible and able to work independently with minimal supervision.

• Able to prioritize tasks, take ownership of issues and follow through to resolution.

Preferred Qualifications:

• AWS Certified Solutions Architect – Associate or AWS Certified Security – Specialty.

• Microsoft Azure / Microsoft 365 certifications.

• Experience with Cloudflare WAF, DNS and cloud security.

• Knowledge of PowerShell, scripting and IT automation.

• Experience supporting e-commerce platforms, multi-site offices or warehouse operations.

• Experience with disaster recovery planning and security assessments.