What are the responsibilities and job description for the Network Administrator position at Infojini?
Job Description:
- Monitor network performance, availability, and security on a daily basis, proactively identifying and resolving issues before they impact users.
- Maintain and configure network devices including routers, switches, firewalls, wireless access points, and load balancers
- Perform regular system updates, patches, and firmware upgrades across network infrastructure.
- Assist in managing network security protocols, access controls, VLANs, and segmentation policies.
- Document and maintain document sets for runbooks, network configurations, diagrams, and standard operating procedures.
- Support network segmentation strategies to limit lateral movement and contain potential breaches.
- Maintain and update Access Control Lists (ACLs) and firewall rules following established standards and least-privilege principles.
Infrastructure Support and Troubleshooting
- Provide escalated support in responding to and resolving network-related incidents and service requests in a timely manner.
- Troubleshoot connectivity issues, performance bottlenecks, and network outages.
- Coordinate with vendors and service providers for circuit issues, hardware failures, and support escalations.
- Participate in security incident investigations involving network infrastructure components.
Continuous Improvement and Optimization
- Identify opportunities to enhance network performance, reliability, and security.
- Assist in implementing infrastructure improvements and optimization projects.
- Research and provide recommendations on new technologies and solutions to support business needs.
- Support capacity planning activities and provide input for infrastructure scaling.
- Participate in IT projects involving network infrastructure components.
- Assist in remediating security vulnerabilities identified through scanning and assessment activities.
- Implement security hardening measures across network devices following established guidelines.
Security and Compliance
- Monitor security alerts and respond to potential threats or vulnerabilities with guidance from senior staff.
- Implement and maintain security best practices across network infrastructure.
- Support compliance with organizational security policies and industry standards.
- Assist in conducting regular security assessments and vulnerability scans.
- Maintain audit logs and documentation for compliance requirements.
- Review network traffic patterns, logs, and SIEM alerts to identify suspicious activity or anomalies.
- Support management of network-based security tools including IDS/IPS, web filtering, and email security gateways.
- Assist with penetration testing coordination and vulnerability assessments of network infrastructure.
- Conduct configuration audits to ensure compliance with established security baselines.
- Participate in incident response activities and support forensic investigations as directed.
- Assist in managing certificate lifecycle and encryption protocols across the network.
- Support security awareness activities within the IT team.
Learning and Development
- Stay current with emerging network technologies, vendor platforms, and industry best practices
- Participate in training programs to develop skills in network automation, cloud networking, and security technologies
- Collaborate with senior engineers to gain expertise in advanced networking concepts and architectures
- Contribute to team knowledge sharing through documentation and peer training
- Work toward professional certifications relevant to network engineering and incident response.