Lead Infrastructure Cloud And Network Engineer

Job summary

We are seeking a highly skilled and experienced lead infrastructure, cloud & network engineer to manage, support, and optimize the organization's on-premises, cloud, and network infrastructure. The ideal candidate will possess strong L2 and L3 support expertise across Microsoft technologies, enterprise networking, virtualization, security, backup solutions, and cloud platforms including Microsoft Azure and Oracle Cloud Infrastructure (OCI).

The role is responsible for ensuring the availability, performance, security, scalability, and reliability of the company's IT infrastructure and network environments while supporting business-critical systems and leading technology transformation initiatives.

Key responsibilities

Infrastructure administration

• Manage and maintain enterprise IT infrastructure environments.
• Administer Windows Server environments and related services.
• Monitor infrastructure performance, availability, and capacity.
• Manage operating system upgrades, patching, and lifecycle management.
• Ensure adherence to IT governance, security, and operational standards.

Active directory & identity management

• Administer Active Directory, Organizational Units (OUs), DNS, DHCP, DFS, and Group Policies (GPOs).
• Manage Microsoft Entra ID (Azure AD) and Azure AD Connect.
• Implement and support Identity and Access Management (IAM).
• Support Single Sign-On (SSO) and Multi-Factor Authentication (MFA).
• Manage user provisioning, permissions, and security policies.

Microsoft 365 administration

• Administer and support:
  • Exchange Online
  • Microsoft Teams
  • SharePoint Online
  • OneDrive for Business
  • Microsoft Intune
  • Microsoft Defender
  • Microsoft Purview (Preferred)
• Manage Microsoft 365 licensing and group-based licensing.
• Troubleshoot mail flow, collaboration, synchronization, and security-related issues.
• Support Microsoft 365 security, compliance, and governance initiatives.

Network administration & operations
LAN/WAN/WLAN management

• Manage and maintain enterprise LAN, WAN, WLAN, VPN, and internet connectivity.
• Configure, monitor, and troubleshoot Layer 2 and Layer 3 network devices.
• Administer switches, routers, wireless controllers, and network appliances.
• Ensure network availability, reliability, and performance across multiple locations.
• Perform network capacity planning and bandwidth optimization.

Switching technologies

• VLANs
• Trunking
• STP, RSTP, MSTP
• EtherChannel / LACP
• Port security
• MAC address management

Routing technologies

• Static routing
• Inter-VLAN routing
• Policy-based routing
• OSPF
• BGP (Preferred)
• EIGRP (Preferred)

Wireless & connectivity

• Manage enterprise wireless infrastructure and controllers.
• Troubleshoot network performance and connectivity issues.
• Manage IP addressing, subnetting, redundancy, and failover mechanisms.

Cloud infrastructure administration
Microsoft Azure

• Manage Azure Virtual Machines, Storage Accounts, and Virtual Networks.
• Configure VPN Gateways, Network Security Groups (NSGs), and hybrid connectivity.
• Administer Azure Backup and Azure Site Recovery.
• Support Azure networking and security services.
• Optimize Azure resource utilization and costs.

Oracle Cloud Infrastructure (OCI)

• Administer OCI Compute, Storage, Networking, and Security services.
• Manage Virtual Cloud Networks (VCN), Route Tables, Security Lists, and Load Balancers.
• Configure OCI Identity and Access Management (IAM).
• Support OCI Backup, Monitoring, and Disaster Recovery solutions.
• Participate in cloud migration and modernization projects.

Security administration

• Manage network security controls.
• Implement cybersecurity best practices and hardening standards.
• Investigate, troubleshoot, and mitigate infrastructure and network security incidents.
• Support compliance requirements and governance initiatives.
• Manage Site-to-Site and Remote Access VPN solutions.

Virtualization & datacenter management

• Manage VMware vSphere / ESXi environments.
• Provision and maintain virtual machines.
• Support high availability and disaster recovery configurations.
• Optimize infrastructure resources and performance.
• Perform datacenter capacity planning.

Storage & backup administration

• Administer enterprise storage solutions:
  • NetApp
  • QNAP
  • HPE MSA
  • SAN/NAS platforms
• Manage:
  • Veeam Backup & Replication
  • Azure Backup
  • Microsoft 365 Backup Solutions
  • OCI
• Perform backup validation, restoration testing, and disaster recovery exercises.
• Maintain recovery documentation and procedures.

Endpoint management

• Manage Microsoft Intune and modern device management solutions.
• Deploy security baselines, compliance policies, and endpoint controls.
• Manage Windows device lifecycle and patching activities.
• Support desktop and laptop infrastructure.

Monitoring & troubleshooting

• Monitor infrastructure and network environments using:
  • SolarWinds
  • Azure Monitor
  • OCI Monitoring
• Perform root cause analysis for major incidents.
• Resolve escalated L2 and L3 infrastructure and network issues.
• Maintain incident, problem, and change management records.
• Coordinate with vendors and service providers for complex issue resolution.

Projects, documentation & compliance

• Lead infrastructure, cloud, and network deployment projects.
• Support branch office setup and connectivity deployments.
• Maintain network and infrastructure diagrams.
• Develop and maintain technical documentation and standard operating procedures (SOPs).
• Participate in business continuity and disaster recovery planning.
• Evaluate and recommend new technologies and improvements.

Required technical skills

Microsoft technologies

Windows Server 2016/2019/2022, Active Directory, Entra ID (Azure AD), Azure AD Connect, DNS, DHCP, DFS, Group Policy, PowerShell

Microsoft 365

Exchange Online, SharePoint Online, OneDrive for Business, Microsoft Teams, Intune, Defender, Purview (Preferred)

Networking

TCP/IP, DNS, DHCP, NAT, VLANs, VPN technologies, OSPF, BGP (Preferred), SD-WAN, Wireless infrastructure

Network vendors

Cisco, Fortinet, Aruba, HPE, Check Point

Cloud platforms

Microsoft Azure: Azure administration, Virtual Machines, Virtual Networks, VPN Gateways, NSGs, Azure Backup, Azure Site Recovery
Oracle Cloud Infrastructure (OCI): OCI Compute, OCI Networking, OCI IAM, OCI Storage, OCI Backup & Recovery, OCI Monitoring

Virtualization

VMware vSphere / ESXi, Microsoft Hyper-V

Backup & storage

Veeam Backup & Replication, NetApp, QNAP, HPE MSA

Automation

PowerShell scripting, Task automation, Infrastructure automation

Required qualifications

Education

Bachelor's or Master's degree in Information Technology, Computer Science, Computer Engineering, Network Engineering, or a related field.

Experience

• 5–8 years of experience in infrastructure and network engineering.
• Strong L2/L3 troubleshooting experience.
• Experience supporting enterprise multi-site environments.
• Hands-on experience with Microsoft 365 administration.
• Experience managing Azure and OCI environments.
• Experience with virtualization, backup, networking, and security technologies.

Preferred certifications

Microsoft
Azure Administrator Associate (AZ-104), Azure Network Engineer Associate (AZ-700), Microsoft 365 Administrator Expert

Networking
CCNA, CCNP Enterprise, Fortinet NSE Certification, Aruba Certified Professional

Oracle
OCI Architect Associate, OCI Architect Professional

Virtualization & backup
VMware Certified Professional (VCP), Veeam Certified Engineer (VMCE)

Key competencies

• Strong infrastructure, cloud, and network troubleshooting skills.
• Excellent analytical and problem-solving abilities.
• Strong communication and documentation skills.
• Ability to manage critical incidents under pressure.
• Project implementation and leadership experience.
• Strong customer service and stakeholder management skills.
• Ability to work independently and within cross-functional teams.
• Capability to manage multiple projects and priorities simultaneously.