JOB DESCRIPTION – NETWORK INTERN

Company: NEXASEC Cyber Solutions LLP
Department: Network & IT Infrastructure
Position: Network Intern
Employment Type: Internship
Location: Remote
Experience: Fresher / 0–1 Year
Reporting To: Network Engineer / Technical Lead / Management

About NEXASEC

NEXASEC Cyber Solutions LLP is a cybersecurity and technology company providing cybersecurity consulting, vulnerability assessment and penetration testing (VAPT), security audits, digital forensics, incident response, compliance, security research, cybersecurity training, and technology solutions.

We are looking for a motivated and technically enthusiastic Network Intern to join our technical team. The candidate will assist with network configuration, monitoring, troubleshooting, documentation, and network security activities while gaining practical experience in networking and IT infrastructure.

The ideal candidate should have a good understanding of Cisco networking concepts and CCNA (200-301) topics, along with an interest in network administration and cybersecurity.

Key Responsibilities1. Network Administration & Configuration

- Assist in configuring and maintaining computer networks.
- Work with LAN, WAN, WLAN, and VPN technologies.
- Assist with router, switch, and access point configurations under supervision.
- Configure and troubleshoot IPv4 and IPv6 addressing.
- Work with subnetting, DHCP, DNS, and NAT configurations.
- Understand and assist with VLAN configuration and trunking.
- Assist in configuring inter-VLAN routing.
- Learn and implement basic static and dynamic routing.
- Understand routing protocols such as OSPF.
- Assist in maintaining network connectivity and infrastructure.

2. Routing & Switching (CCNA)

- Apply CCNA networking concepts in practical lab environments.
- Configure and troubleshoot Cisco routers and switches.
- Understand switching operations and MAC address tables.
- Work with VLANs, trunk ports, and Spanning Tree Protocol (STP).
- Understand EtherChannel concepts and configurations.
- Configure basic static routes and default routes.
- Understand OSPF routing fundamentals.
- Work with access control lists (ACLs).
- Understand network address translation (NAT).
- Perform basic router and switch troubleshooting using Cisco IOS commands.

3. Network Monitoring & Troubleshooting

- Monitor network connectivity and performance.
- Identify and troubleshoot network connectivity issues.
- Diagnose DNS, DHCP, routing, switching, and IP configuration problems.
- Use tools such as Ping, Traceroute, Nslookup, and Wireshark.
- Analyse network traffic and identify abnormal communication patterns.
- Assist in resolving network-related technical issues.
- Document troubleshooting activities and escalate complex issues to senior engineers.

4. Network Security

- Understand fundamental network security concepts and practices.
- Assist in identifying potential network vulnerabilities under supervision.
- Learn firewall configuration, access control, and traffic filtering.




- Understand network segmentation and secure network architecture.
- Learn about IDS/IPS and VPN security.
- Understand common network attacks such as ARP spoofing, DNS spoofing, and Denial-of-Service (DoS).
- Assist with basic network security assessments in authorised lab environments.
- Follow security best practices while configuring and managing network devices.

5. Network Documentation

- Maintain network configuration and infrastructure documentation.
- Prepare network topology diagrams and architecture documentation.
- Maintain IP address allocation and network device records.
- Document router, switch, and firewall configurations.
- Record network troubleshooting activities and resolutions.
- Prepare technical reports and documentation as assigned.

6. Practical Training & Technical Projects

- Perform networking exercises using Cisco Packet Tracer and GNS3.
- Participate in practical CCNA-based networking assignments.
- Work on routing, switching, VLAN, subnetting, and troubleshooting labs.
- Assist senior engineers with networking and infrastructure projects.
- Participate in internal cybersecurity and networking projects.
- Complete assigned technical tasks and practical assessments.
- Continuously improve networking and troubleshooting skills.

7. Team Collaboration

- Coordinate with cybersecurity and IT infrastructure teams.
- Assist senior engineers with assigned technical activities.
- Provide regular updates on assigned tasks and project progress.
- Participate in technical meetings and knowledge-sharing sessions.
- Follow company policies, security guidelines, and technical procedures.

Required Skills

- Strong understanding of computer networking fundamentals.
- Positive knowledge of the Cisco CCNA (200-301) syllabus.
- Understanding of OSI and TCP/IP models.
- Knowledge of IPv4 and IPv6 addressing and subnetting.
- Understanding of routing and switching concepts.
- Knowledge of VLANs, trunking, STP, and inter-VLAN routing.
- Understanding of static routing and dynamic routing protocols, including OSPF.
- Knowledge of DHCP, DNS, NAT, and ACLs.
- Basic understanding of wireless networking.
- Familiarity with Cisco IOS commands and device configuration.
- Knowledge of network troubleshooting using Ping, Traceroute, and other diagnostic tools.
- Basic understanding of Linux networking.
- Good analytical and problem-solving skills.
- Willingness to learn new networking technologies.
- Good communication and technical documentation skills.

Preferred Skills

- CCNA (200-301) certification or currently pursuing CCNA.
- Hands-on experience with Cisco Packet Tracer or GNS3.




- Practical experience configuring Cisco routers and switches.
- Familiarity with Wireshark and network packet analysis.
- Basic understanding of firewalls, VPNs, IDS/IPS, and network security.
- Understanding of network monitoring and infrastructure management.
- Basic knowledge of cybersecurity concepts and network vulnerability assessment.

Key Performance Indicators (KPIs)

- Completion of assigned networking tasks and practical assignments.
- Accuracy of network configurations and documentation.
- Ability to identify and troubleshoot basic network issues.
- Understanding and practical application of CCNA concepts.
- Quality of routing and switching configurations.
- Progress in practical networking assessments.
- Timely completion of assigned projects.
- Participation in technical training and team activities.
- Quality of technical reports and documentation.
- Improvement in networking and troubleshooting skills.
- Adherence to company security policies and procedures.

Qualifications

Education:

- Diploma or Bachelor's degree in Computer Science, Information Technology, Electronics, Electrical Engineering, or a related technical field.
- Candidates currently pursuing relevant technical qualifications may also apply.

Experience:

- Freshers are welcome.
- 0–1 year of experience in networking or IT support is preferred but not mandatory.
- Candidates must have CCNA-level networking knowledge.
- CCNA (200-301) certification is preferred but not compulsory.
- Candidates currently pursuing CCNA certification are encouraged to apply.
- Practical networking knowledge and lab experience will be an advantage.

Core Competencies

CCNA | Cisco Networking | TCP/IP | IPv4/IPv6 | Subnetting | Routing & Switching | VLAN | OSPF | STP | ACL | NAT | DHCP | DNS | Cisco IOS | Wireshark | Network Troubleshooting | Network Security | Network Administration

Working Hours

Monday – Friday

9:30 AM – 6:00 PM

Saturday & Sunday: Weekly Off

What NEXASEC Offers

- Practical exposure to real-world networking and IT infrastructure.
- Opportunity to work alongside cybersecurity professionals.
- Hands-on learning in Cisco networking and CCNA concepts.
- Exposure to network monitoring, troubleshooting, and security assessments.
- Technical mentorship and learning opportunities.
- Opportunity to participate in internal networking and cybersecurity projects.
- Professional development and skill enhancement.
- Performance-based career growth opportunities.
- Professional and collaborative remote working environment.

Application

Interested candidates can submit their updated CV/resume along with details of their educational qualifications, CCNA knowledge, certifications, technical skills, and relevant networking projects.

Candidates are encouraged to mention their CCNA certification status and practical experience with Cisco Packet Tracer or GNS3 in their application.

NEXASEC Cyber Solutions LLP

Secure. Innovate. Protect.

Work Location: Remote

Pay: From ₹8,000.00 per month

Work Location: In person

📌 Network Intern (Wayanad)
🏢 NEXASEC CYBER SOLUTION
📍 Wayanad