Security & Network Administrator
Data-Core Systems · Kolkata · onsite · Posted 20d ago
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About this role
Location: Kolkata
We're Hiring | Security & Network Administrator (3+ Years Experience)
We are looking for an experienced Security & Network Administrator to manage and maintain secure IT infrastructure, ensure network availability, and implement robust security measures across enterprise environments.
Key Responsibilities:
- Design, configure, and maintain secure network infrastructure.
- Administer LAN/WAN, routers, switches, firewalls, VPNs, and wireless networks.
- Monitor network performance and troubleshoot connectivity issues.
- Implement and maintain network security policies, access controls, and security protocols.
- Manage servers, system administration, backups, and disaster recovery processes.
- Perform vulnerability assessments, patch management, and security updates.
- Monitor system logs, detect security incidents, and ensure timely resolution.
- Maintain documentation of network architecture, configurations, and IT assets.
- Coordinate with internal teams to ensure high availability and business continuity.
Eligibility:
- Minimum 3+ years of experience in network and system administration, secure network design, infrastructure management, and network security.
- Qualification: MCA / M.Sc. (IT/Computer Science) / B.E. / B.Tech (IT/Computer Science).
Interested candidates can share their updated resume at [email removed] with the subject line "Application Security & Network Administrator".
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About Data-Core Systems

Data-Core Systems
IT Services & Consulting
301
employees
1988
38 years old
Bristol
United Kingdom
₹3.6L PA avg
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