511 Network Security jobs in Chennai

A network security engineer is responsible for every aspect of data safety in a network, ensuring there are minimum vulnerabilities by adopting and integrating the latest technology to prevent malicious attacks. A network security engineer job description often includes:

• Making sure system backups are running in case of a security attack

• mplementing network security blueprints prepared by security architects

• M naging information and data access

• M intaining and updating firewalls and testing the organization’s network and systems

A network security engineer is responsible for every aspect of data safety in a network, ensuring there are minimum vulnerabilities by adopting and integrating the latest technology to prevent malicious attacks. A network security engineer job description often includes:

• Mak ng sure system backups are running in case of a security attack

• I plementing network security blueprints prepared by security architects

• M naging information and data access

• M intaining and updating firewalls and testing the organization’s network and systems

Job Title: Network Security Engineer L3

Experience Required: 7+ Years in Network Security Firewall engineer

Location: Chennai – Work from Office Only – (Rotational Shifts 24*7)

Job Description:

We are seeking an experienced Network Security Engineer (L3) with strong expertise in enterprise firewall technologies. The ideal candidate should have Mandatory hands-on experience in Fortinet, Cisco ASA, FTD, and Palo Alto firewalls, along with advanced troubleshooting and security policy management skills.

Key Responsibilities:

• configure, implement, and maintain Fortinet, Cisco ASA, FTD , and Palo Alto firewalls.
• Perform L3-level troubleshooting, Command Line, root cause analysis, and resolution of security incidents.
• Implement and manage security policies, Advance Configuration, VPNs, NAT, and high-availability firewall setups.
• Monitor and optimize firewall performance, ensuring compliance with security standards.
• Collaborate with cross-functional teams with firewall/Network security related issues.

Required Skills:

• 7+ years of relevant experience in Firewall Mangement.
• Expertise in Fortinet, Cisco, and Palo Alto firewalls.
• Strong knowledge of Firewall Management, VPN, IPS/IDS, and threat management.
• Experience in managing large-scale, mission-critical network security infrastructures.
• Good communication and documentation skills.

Role: Network Engineer

Network Engineer:

We are looking for a skilled and experienced candidate for the position of Network Engineer to join our development team. As a Network Engineer, you will be responsible for setting up and maintaining our internal infrastructure and communicating with stakeholders of Aetram on various aspects. Need to have exposure to network and cybersecurity aspects.

Key Responsibilities:

• System and Network Administration

• Manage and maintain network infrastructure across Windows and Linux environments.

• Troubleshoot network and system issues to ensure high availability and minimize downtime.
• Administer and monitor firewalls, VPNs, routers, and switches to ensure proper network functionality.
• Configure and manage DNS/DHCP, Active Directory, and Group Policy for user authentication, network security, and access control.

• Implement and maintain cloud-based solutions (AWS, Azure) where necessary.

• Security Operations and Threat Management

• Work in a Security Operations Center (SOC) to monitor network security, analyze incidents, and provide real-time threat detection.

• Implement network security measures, including firewalls, IDS/IPS, and VPN security.
• Perform vulnerability assessments, security audits, and address security gaps by applying patches and updates.
• Collaborate with internal teams to implement and enforce security best practices and policies.

• Respond to security incidents, perform root cause analysis, and resolve security breaches.

• Website and Domain Security

• Ensure the security and integrity of web applications and web servers, including Apache and Nginx.

• Implement SSL/TLS encryption, configure WAFs, and protect websites from DDoS and other cyber-attacks.
• Regularly perform security assessments to identify vulnerabilities in websites and web servers.

• Manage domain services and ensure Active Directory functionality, including handling user access, security groups, and group policies.

• Monitoring and Reporting

• Use monitoring tools to monitor system performance, security, and network traffic proactively.

• Generate and maintain security and performance reports, providing insights for continuous improvement.

• Work with the team to identify network bottlenecks and propose optimization solutions.

• Collaboration & Documentation:

• Collaborate with trading systems engineers and IT staff to ensure seamless network operations and integration.

• Document network configurations, changes, security measures, and log monitoring procedures.

• Compliance & Best Practices:

• Ensure network designs and operations comply with industry standards and regulatory requirements.

• Stay updated with the latest network and security trends, technologies, and best practices.

• Technical Support and Troubleshooting

• Provide timely support for network, server, and security-related issues.

• Work closely with both technical and non-technical teams to resolve issues quickly and efficiently.

• Document troubleshooting procedures and solutions for future reference and to ensure smooth handovers.

• Backup and Disaster Recovery

• Oversee backup and disaster recovery solutions, ensuring regular backups of critical systems and data.

• Test recovery procedures regularly and ensure business continuity in case of system failures.

Required Qualifications and Experience:

• Minimum 3- 5 years of experience as a System and Network Engineer or a similar role, working with both Windows and Linux environments.
• Strong hands-on experience with network configuration, troubleshooting, and system administration.
• Experience with Security Operations Center (SOC), including incident response, vulnerability management, and threat detection.
• Proficient in website security, including web server hardening, SSL/TLS encryption, and DDoS protection.
• Experience with domain management using Active Directory, DNS, and Group Policies.
• Strong understanding of network security technologies like firewalls, VPNs, IDS/IPS, and security audits.
• Experience with cloud platforms such as AWS and Microsoft Azure is a plus.
• Knowledge of backup solutions and disaster recovery planning.

Technical Skills:

• Operating Systems: Windows Server, Linux (Ubuntu, CentOS, Red Hat)
• Networking: DNS/DHCP, VPN, LAN/WAN, Routing, Firewalls, VPNs
• Security Tools: Wireshark, Nmap, Nessus, SolarWinds, Nagios, SIEM tools
• Web Security: SSL/TLS, Web Application Firewalls (WAF), DDoS Protection
• Cloud Platforms: AWS, Microsoft Azure (basic knowledge)
• Scripting Languages: Bash, PowerShell, Python (basic scripting and automation)
• Virtualization: VMware, Hyper-V
• Backup Solutions: Any

Preferred Qualifications:

• Certifications:

• CompTIA Network+

• CISSP (In Progress or Completed)
• Certified Ethical Hacker (CEH)
• Microsoft Certified: Azure Fundamentals

• AWS Certified Solutions Architect (basic knowledge)

• Soft Skills:

• Strong communication and interpersonal skills, with the ability to work with both technical and non-technical teams.

• Excellent problem-solving skills and attention to detail.
• Ability to work under pressure and handle multiple tasks effectively.
• Good time management and organizational skills.

• Design, implement, and manage network security solutions, including firewalls, IDS/IPS, and VPNs.
• Monitor network traffic and security logs for suspicious activities and potential threats.
• Conduct regular vulnerability assessments and penetration tests.
• Develop and enforce security policies and procedures across the organization.
• Respond to and investigate security incidents, providing timely remediation.
• Ensure the confidentiality, integrity, and availability of network systems and data.
• Collaborate with IT teams to implement security best practices in system design and deployment.
• Stay updated on the latest security threats, trends, and technologies.
• Manage and maintain security hardware and software solutions.
• Provide technical guidance and support on network security matters.

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Minimum of 5-7 years of experience in network security engineering.
• In-depth knowledge of network protocols, security principles, and threat landscapes.
• Hands-on experience with security tools such as firewalls, IDS/IPS, SIEM, and endpoint security solutions.
• Proficiency in configuring and managing network devices (routers, switches) with security in mind.
• Strong understanding of cryptography, authentication, and access control mechanisms.
• Relevant security certifications (e.g., CISSP, CCNA Security, CEH) are highly preferred.
• Excellent analytical, problem-solving, and troubleshooting skills.
• Ability to work independently and as part of a team.
• Strong communication skills, both written and verbal.

• Design, implement, and maintain network security infrastructure, including firewalls, routers, switches, and VPNs.
• Configure and manage intrusion detection and prevention systems (IDPS).
• Develop and enforce network security policies and procedures.
• Monitor network traffic for security breaches and suspicious activities.
• Investigate security incidents, perform root cause analysis, and implement corrective actions.
• Conduct regular vulnerability assessments and penetration testing.
• Ensure compliance with industry security standards and regulations.
• Provide technical support and guidance on network security matters.
• Stay up-to-date with the latest security threats and technologies.
• Collaborate with IT teams to implement security best practices across the organization.
• Develop and deliver security awareness training to employees.

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 3-5 years of experience in network security engineering.
• Strong understanding of TCP/IP, routing protocols, and network architecture.
• Hands-on experience with various firewall platforms (e.g., Cisco, Palo Alto, Fortinet) and security tools.
• Knowledge of security frameworks such as ISO 27001 and NIST.
• Relevant security certifications (e.g., CCNA Security, CISSP, CEH) are a plus.
• Excellent analytical and problem-solving skills.
• Strong communication and interpersonal skills.
• Ability to work effectively under pressure and manage multiple priorities.

RSEC is a cybersecurity research and development company known for its advanced solutions and expert consultation services. We specialize in offering cutting-edge cybersecurity technologies to protect against emerging threats. Our team of skilled professionals is dedicated to providing top-tier security solutions across various industries. Joining RSEC means being part of a forward-thinking organization committed to innovation and excellence in cybersecurity.

This is a full-time remote role for a Network Security Engineer. As a Network Security Engineer, you will be responsible for designing, implementing, and maintaining secure network infrastructures. You will monitor network traffic for unusual activity, conduct security assessments, and collaborate with other IT professionals to safeguard the organization's information. Daily tasks include configuring firewalls, managing security protocols, and responding to security breaches and incidents to ensure the integrity and confidentiality of sensitive data.

• Network Administration and Network Engineering skills
• Expertise in Network Security and Cybersecurity
• Information Security management and implementation skills
• Proficiency with security tools such as firewalls, intrusion detection systems, and encryption software
• Strong analytical and problem-solving abilities
• Excellent communication and teamwork skills
• Bachelor's degree in Computer Science, Information Technology, or related field
• Relevant certifications such as CISSP, CEH, or CompTIA Security+ are a plus