RITHESH N

Network Engineer / Cybersecurity Analyst

About

Highly skilled Cybersecurity Professional with a strong foundation in vulnerability assessment, network defense, and cloud security. Certified in CCNA and AWS, bringing hands-on expertise in penetration testing, traffic analysis, and security hardening. Proven ability to leverage Python automation and open-source security tools to identify critical risks, implement enterprise-grade solutions, and enhance organizational security posture.

Work Experience

Trainee (Networking & Cybersecurity)

ISR Tech ORG

Mar 2023 - Apr 2024

Chennai, Tamil Nadu, IN

As a Trainee, I designed and secured network infrastructures, conducted vulnerability assessments, and automated security tasks, enhancing enterprise security operations.

  • Designed and secured complex network infrastructures, including VLANs, firewalls, and routing protocols, ensuring robust system integrity.
  • Conducted comprehensive vulnerability assessments using Nmap and Wireshark, identifying critical risks in diverse client systems.
  • Automated key security tasks with Python scripts, improving efficiency and reducing manual effort in security operations.
  • Managed AWS cloud environments (EC2, S3, IAM) to ensure secure and optimized cloud resource utilization.
  • Contributed to team development by training junior members in security best practices and participating in incident response efforts.

Education

Computer Applications

Dr. M.G.R. Chockalingam Arts College, Thiruvalluvar University

Thiruvalluvar, Tamil Nadu, IN

Certificates

Cisco Certified Network Associate (CCNA 200-301)

BESANT TECHNOLOGIES

AWS Certified

AWS

Projects

Website Scanning Using Nmap – Jain Hospital

Conducted a comprehensive security assessment of Jain Hospital's web infrastructure using advanced Nmap scanning techniques, identifying and remediating critical vulnerabilities.

Real-Time Network Traffic Monitoring – Neomen Designers

Implemented enterprise-wide network monitoring, capturing 2.4TB of traffic across 5 VLANs, and identified critical security incidents.

Gobuster Web Directory Attack – Amosta Solutions

Performed exhaustive directory brute-forcing against a production environment, discovering 47 hidden paths and reducing the attack surface by 89%.

Nikto Web Server Scanning – Woodapple Residency

Conducted in-depth security assessment of a booking portal, identifying and remediating missing security headers and outdated server software.

Hosted Static Website on AWS

Deployed a secure static portfolio site using AWS services, ensuring high availability, low latency, and robust security.

Hotel VLAN Simulation (Packet Tracer)

Designed and implemented a multi-floor hotel network topology with VLANs for guest/management segregation, prioritizing VoIP traffic and implementing robust firewall rules.

MITM Simulation with Bettercap

Built a comprehensive test environment to study Man-in-the-Middle (MITM) attacks, developing detection mechanisms and educational materials.

Pharmacy Inventory GUI (Python)

Developed a full-featured desktop application for pharmacy inventory management, incorporating barcode scanning, expiry alerts, and comprehensive reporting.

Python Password Vault (CLI)

Built a secure command-line password manager featuring AES-256 encryption for credential storage and integrated with HaveIBeenPwned API for breach monitoring.

Subdomain Enumeration and DNS Testing

Conducted comprehensive subdomain discovery for organizational assets and DNS zone transfer testing, identifying misconfigured name servers.

Awards

Inter College Football Champion

Inter-collegiate Tournament

Led team to victory in inter-collegiate tournament, demonstrating leadership and teamwork under pressure.

Technical Symposium Speaker

N/A

Presented a research paper on "Cyber Security" to an audience of over 150 attendees.

Skills

Network Security

  • VLANs
  • OSPF
  • ACLs
  • VPN
  • IDS/IPS configuration
  • Wireshark analysis
  • Nmap scanning (SYN, UDP, OS fingerprinting)

Penetration Testing

  • Metasploit framework
  • Burp Suite
  • Gobuster directory brute-forcing
  • Nikto web scanning

Cloud Security

  • AWS EC2 hardening
  • S3 bucket policies
  • IAM role management
  • VPC peering security
  • CloudTrail monitoring

Programming

  • Python (socket programming, requests, BeautifulSoup)
  • Bash scripting

Operating Systems

  • Kali Linux tools suite
  • Ubuntu server hardening
  • Windows security policies

Firewall Management

  • iptables configuration
  • Cisco ASA policies
  • pfSense rule creation

Network Simulation

  • Cisco Packet Tracer
  • GNS3 lab environments
  • attack scenarios

Frameworks & Tools

  • Nmap
  • Wireshark
  • Nikto
  • Gobuster
  • Cisco Packet Tracer
  • Putty
  • AWS CLI
  • Git
  • VS Code