Senior Systems & Network Engineer (L3)
The Senior Systems & Network Engineer (L3) serves as the highest technical escalation point for complex infrastructure, cloud, network, and security issues across multiple client environments. This role is responsible for designing, implementing, optimizing, and supporting enterprise-grade IT infrastructure while ensuring high availability, security, scalability, and operational excellence.
As an L3 Engineer, you will lead complex troubleshooting efforts, perform deep root cause analysis (RCA), and drive long-term solutions rather than temporary fixes. You will collaborate with internal engineering teams, mentor junior engineers, and participate in infrastructure modernization projects involving Microsoft 365, Azure, VMware, networking, cybersecurity, disaster recovery, and automation.
This role requires exceptional technical expertise, strong analytical skills, and the ability to manage multiple enterprise environments within a Managed Service Provider (MSP) setting.
Key Responsibilities
Infrastructure Engineering
- Design, implement, and maintain enterprise Windows Server environments (2012–2025).
- Architect and manage Active Directory, Azure Active Directory (Entra ID), DNS, DHCP, DFS, PKI, Certificate Services, File Services, and Group Policy.
- Design and administer hybrid Microsoft 365 and Azure environments.
- Plan and execute infrastructure upgrades, migrations, consol
