OCI Network Administrator

Job Summary

The Oracle Cloud
Infrastructure (OCI) Network Administrator designs, implements, and manages
secure, high-performance OCI environments with a focus on tenancy architecture,
network layers, identity governance, and high-availability infrastructure. This
role combines hands-on OCI administration with security hardening, hybrid cloud
integration, and disaster recovery planning.

Key Responsibilities

·        Tenancy & Network Configuration: Provision and manage OCI tenancy resources,
including Virtual Cloud Networks (VCNs), compartments, subnets, route tables,
and security lists. Configure storage solutions (Block Volume, Object Storage,
File Storage Service) and optimize network traffic flow.

·        Identity & Access Management: Set up IAM identity domains, groups, users,
and policies. Enforce multi-factor authentication (MFA) and integrate with
on-premises Active Directory for hybrid identity management.

·        Security Hardening: Implement risk assessment outcomes by configuring OS hardening, Cloud
Guard for threat detection, and Vulnerability Scanning Service (VSS). Resolve
critical/high-severity security issues and manage certificate renewals.

·        Infrastructure Administration: Perform server maintenance, performance
tuning, patching, and monitoring. Allocate CPU/memory resources, configure disk
partitions, and ensure infrastructure high availability.

·        Disaster Recovery & HA: Design and deploy HA architectures using fault domains, availability
domains, and load balancers. Implement DR strategies for cross-region
replication and failover.

·        Hybrid Cloud & DevOps: Integrate OCI with on-premises environments via FastConnect or VPN.
Develop tagging strategies for resource governance and collaborate with DevOps
teams using CI/CD tools (e.g., Jenkins, Terraform).

Key Knowledge Areas

·        OCI Core Services: Tenancy structure, VCN components, storage options (FSS, Block Volume),
and network security (firewalls, security lists).

·        Security Frameworks: Cloud Guard configurations, VSS workflows, certificate management, and
NIST/ISO compliance standards.

·        OS Administration: Linux/Windows system management, AD integration, SMB/shared filesystem
setup, and vulnerability remediation.

·        High Availability: OCI fault/availability domains, load balancer configurations, and DR
architectures (active-passive/active-active).

·        Hybrid Cloud: Networking models (VPN, FastConnect), resource synchronization, and
monitoring/logging services (OCI Metrics, Logging Analytics).

Required Technical Skills

·        Proficiency
in OCI Console, CLI, and Terraform for infrastructure provisioning.

·        Hands-on
experience with:

o   OCI
IAM domain configuration and policy design.

o   OS
hardening for Linux/Windows and security vulnerability remediation.

o   Cloud
Guard, Tenable, VSS, and certificate lifecycle management.

o   HA/DR
implementations using load balancers and multi-region deployments.

o   Hybrid
cloud integration (VPN, FastConnect) and monitoring tools (OCI Monitoring,
Prometheus).

·        Familiarity
with DevOps pipelines and CI/CD tools (Jenkins, GitLab CI).

·        Scripting
skills for automation (Python, Bash).

Qualifications

·        Certifications: OCI Architect Associate/Professional, Oracle Cloud Infrastructure
Certified Network Professional, or equivalent (e.g., AWS/Azure networking
certs).

·        Education: Bachelor’s
degree in Computer Science, Information Systems, or related field.

·        Experience: 3-5 years in cloud administration, including 2+ years focused on OCI.

·        Preferred: Experience with security frameworks (NIST, CIS Benchmarks) and hybrid cloud
governance models.