Lead Infrastructure, Cloud & 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

• o Exchange Online
• o Microsoft Teams
• o SharePoint Online
• o OneDrive for Business
• o Microsoft Intune
• o Microsoft Defender
• o 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.

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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.

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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

• o NetApp
• o QNAP
• o HPE MSA
• o SAN/NAS Platforms

 Manage

• o Veeam Backup & Replication
• o Azure Backup
• o Microsoft 365 Backup Solutions
• o 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

• o SolarWinds
• o Azure Monitor
• o 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 SOPs.
•  Participate in business continuity and disaster recovery planning.
•  Evaluate and recommend new technologies and improvements.

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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

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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.