22 Network Administrator jobs in Chennai
Network Security Engineer
Posted today
Job Viewed
Job Description
Dear Candidate,
TCS has been a great pioneer in feeding the fire of young Techies like you. We are a global leader in the technology arena and there’s nothing that can stop us from growing together. Your role is of key importance, as it lays down the foundation for the entire project
Role : Network Security Engineer
Location : Bangalore/ Hyderabad/ Chennai/ Mumbai/ Indore
Experience : 10+ Years
Required Skills: Palo Alto Firewall, Panorama, F5 LTM Load Balancer and GTM, Infoblox.
Must Have:
- Should offer end to end IT infrastructure and Network Administration (Network Security)
- Should be dealing with fault-ticket (Service-Now), in co-ordination with Customer, application team or device vendor to resolve issues
- Should be dealing with various vendors & troubleshooting of various Network security related issues.
- Technical Support and Fault Management/troubleshooting for Network firewall and Load balancer issue.
- Configuration of firewall rules to allow or deny access as per the user/application requirement.
- Strong knowledge on leveraging advanced firewalls features like APP-ID, User-ID, Global Protect, Wild Fire, NAT policies and Security Profiles.
- Profound working knowledge of administration and management of Palo Alto firewalls using centralized Panorama and PAN-OS upgradation.
- Configuring various advanced features (Profiles, monitors, Redundancy, SSL Termination, Persistence, SNATS, HA on F5 BIGIP appliances SSL termination and initiation.
- Worked on configuring and troubleshooting Nodes, Pools, Profiles, Virtual Servers, SSL Certificates offloading.
- Working experience on iRules, policy and Big-IP F5 on LTM and GTM load balancers like GHA creation to provide uninterrupted service to customers/Application.
- Working experience on code upgrades of virtual and physical F5 LTM and GTM devices for feature and performance improvement and to mitigate security risk.
- Supported Infoblox appliances grid environment for DNS, DHCP and IP Address Management tools (IPv4) for the enterprise network.
- Worked on creating and maintaining new subnets, host with several record entries like CNAME, PTR, A, etc) with DHCP scopes using Graphical User Interface.
- In depth Knowledge on ITIL processes like Incident management, Problem Management, Configuration management and Change Management processes.
- Candidate should have been in a customer facing role with excellent communication skills.
- Strong technical knowledge and eagerness to learn new technologies
Regards,
Priscilla Nancy
HR TAG – CSP
Tata Consultancy Services
Network Security Specialist
Posted 3 days ago
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Job Description
Network Security F5 WAF (L2 & above)
We are seeking an experienced Network Security Engineer to design, implement, and maintain the security of our enterprise network infrastructure. The ideal candidate will have a strong background in firewall management, intrusion detection/prevention systems, VPNs, and network security architecture. You will play a critical role in safeguarding the organization’s digital assets from internal and external threats.
KEY RESPONSIBILITIES:
Network Security Engineer
Posted 3 days ago
Job Viewed
Job Description
Movate (formerly known as CSS Corp) is a global customer experience and technology consulting services provider, disrupting the industry with a unique intersection of industryleading proprietary solutions, resilient operations, and innovative business engagement models. It has emerged as a compelling alternative to the traditional IT and support service providers with its premium service offerings and differentiated value propositions that solve clients’ critical business problems proactively. The company is a digital transformation partner of choice for its clients, which include the world’s top innovators across industries, from mid-market players to large enterprises. Its diverse team of over 11,700 customercentric thinkers, collaborators, and co-creators across 20 global locations, is passionate about helping clients succeed through intelligent automation-led outcomes.
Job Description:
Position : Network Security Engineer (L1 Engineer)
Experience : 2 – 5 years
Job Location : Chennai - Perungalathur
DESIRED PROFILE:
• Minimum 1.5 Years experience in Network Security Engineer
• Strong Knowledge of Networking concepts such as IPSEC VPN, SSL VPN, TCP/UDP, DHCP, DNS, ARP, VLan, SPAN, Ospf, BGP. Fregmentation and Segmentation.
Job Responsibilities:
• Handles first level calls/cases from Enterprise customers.
• Case ownership, documentation and management
• Customer Management, Setting right expectation, Situation handling.
• Driving case progression as per the SLA
• Utilizing tools and systems, Working with relevant groups in the client organization (SE, Support Manager, L3) for case progression and updates
• Backlog Management and meet the expectation set with customers.
• Work on pending cases(backlogs) and drive towards closure
• Periodic follow up as per SLA defined by the client.
Process, Queue Adherence and SLA awareness
• Adhere to the process guidelines specified for the defined environment (SIP, ISO etc.)
• Knowledge Base Article Creation when there is an opportunity for it.
• To contribute knowledge base and the knowledge sharing forum
• Improving customer experience and Building relationship
• Completing PCNSE certification within 120 days of go-live.
Technical skills:
• 2+ years of experience in data networking, routing & switching & network security.
• Network security experience is must.
• Good understanding of OSI Model, TCP/IP protocol suite (IP, ARP, ICMP, TCP, UDP, SNMP, FTP, TFTP).
Experience in VLANS, Tagging - IEEE 802.1q, 802.3ad, 802.1d, 802.1w.
• Experience in IPSEC VPN/SSL-VPN/NAT/GRE/
• Experience on routing protocols – RIP V1/V2, OSPF, and BGP
• Knowledge of Authentication Protocols like TACAS/RADIUS/LDAP will be an added advantage.
• Working knowledge on Cisco, Checkpoint, Juniper, Fortinet, SonicWALL, NetScreen, Juniper SRX, Palo Alto Networks will be an added advantage.
• Experience on troubleshooting tools like Sniffer, Ethereal, and Wireshark.
• CCNA, CCNP, Checkpoint Certification, CCSP, PCNSE certifications will be an added advantage.
• Knowledge of Server Load Balancing (SLB), VRRP and IGMP.
Network Security Engineer
Posted 3 days ago
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Job Description
We are hiring at ValueLabs!
Role: Network security engineer
Location: Chennai (Onsite)
Experience: 7–12 Years
Notice Period: Immediate to 30 Days
interested candidates please share resume to
please find attached JD:
Excellent knowledge of Network Security Principles
Experience designing, implementing and operating large scale corporate network security solutions including NGFWs, IDS/IPS, Web Proxy, Load balancers, RAS, DNS, Certificates
Excellent technical knowledge in FW Products: PaloAlto, Checkpoint
Excellent technical knowledge in F5 Products: GTM, LTM and ASM
Excellent knowledge in multiple Network security products: Bluecoat, Pulse Secure…
Knowledge in opensource network security solutions: HAProxy, Service Mesh, PFSense, Squid …
(Very Important ) Automation and Software experience – Ansible, Python, Chef
Experience with cloud network security solutions
Good knowledge in virtualization technologies: Docker, OpenShift, Kubernetes, VMWare ESXi, KVM, OpenStack
Good knowledge of the products licensing
Note: Banking domain is mandatory .
Only local Chennai candidates preferable .
IT Network & Security Engineer
Posted 3 days ago
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Job Description
Position Purpose:
We are seeking a highly skilled and experienced IT Network & Security Engineer to join our team. This
individual will be responsible for managing end-to-end security across enterprise network
infrastructure, addressing L1, L2, and L3 support tickets, and contributing to the design, review, and
implementation of secure network solutions. The ideal candidate will possess hands-on expertise in
managing LAN/WAN, Wi-Fi, Data Center networks, and hybrid cloud environments, as well as in
configuring and securing firewalls and VPNs.
Role Description:
1. Network Design & Implementation:
- Design, implement, and maintain secure LAN/WAN, Wi-Fi, and Data Center networks.
- Develop scalable and resilient network security architectures in alignment with business and compliance requirements.
2. Firewall & Security Appliance Management:
- Configure and manage next-generation firewalls and security appliances (Cisco ASA,
Palo Alto, Fortinet, Check Point).
- Maintain access control policies, VPN configurations, and network segmentation.
3. Ticket Resolution:
- Provide timely and effective resolution of L1, L2, and L3 network & security support
tickets.
- Troubleshoot complex issues related to performance, connectivity, and security
across enterprise environments.
4. VPN & Secure Connectivity:
- Deploy and manage various VPN technologies including IPSec, SSL VPN, DMVPN, and
Remote Access VPN.
5. NAC & Identity-Based Access:
- Implement and manage Network Access Control (NAC) solutions using Cisco ISE or
Aruba ClearPass.
6. Cloud Security:
- Design and enforce security controls in Azure and AWS environments.
- Implement and maintain cloud-based firewalls, NSGs, WAFs, CASBs, and SASE
architectures.
7. Monitoring & Audit:
- Utilize tools such as ManageEngine, SolarWinds and PRTG for proactive monitoring and alerting.
- Conduct periodic audits, maintain security documentation, and perform risk assessments to ensure compliance.
8. Switching Infrastructure:
- Manage Cisco Access and Core switches, including Nexus device configuration and lifecycle management.
9. Collaboration & Continuous Improvement:
- Work cross-functionally with IT operations, compliance, and DevOps teams to enhance security posture.
- Create and review new network security solutions and provide technical guidance on emerging threats and technologies.
Job Specific Knowledge/Skills:
- Good knowledge of Company operations and business across various sectors.
- Analytical thinking
- Ability to prioritize actions and work within a diverse team.
- Ability to work in a dynamic fast paced, diverse environment.
- Excellent communication skills, both written and verbal.
- Microsoft Office.
- Experience in managing effective communications across multiple business area and to different
seniority levels.
Education:
- Bachelor's degree in Information Technology, Computer Science, or related field (or equivalent
experience).
- 8+ years of experience in network and security engineering roles.
- Strong understanding of TCP/IP, routing protocols, network segmentation, and security principles.
- Hands-on experience with Cisco IOS/NX-OS, firewall rule sets, VPN technologies, and NAC
deployments.
- Expertise in hybrid and multi-cloud security models.
- Excellent analytical, problem-solving, and communication skills.
Experience:
- Firewall Technologies: Fortinet NSE 4–8 Certification ·
- Palo Alto Networks Certified Network Security Engineer (PCNSE)
- Cisco: CCNP Security
Additional Information :
- Work with cutting-edge security technologies across on-premises and cloud environments.
- Collaborative and growth-focused work culture.
- Opportunities for upskilling and certification support.
Senior Research Scientist - Network Security
Posted 1 day ago
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Job Description
Senior Research Scientist - Network Security
**About** **Trellix:**
**Trellix, the trusted CISO ally, is redefining the future of cybersecurity and soulful work.** Our comprehensive, GenAI-powered platform helps organizations confronted by today's most advanced threats gain confidence in the protection and resilience of their operations. Along with an extensive partner ecosystem, we accelerate technology innovation through artificial intelligence, automation, and analytics to empower over 53,000 customers with responsibly architected security solutions.
We also recognize the importance of closing the 4-million-person cybersecurity talent gap. We aim to create a home for anyone seeking a meaningful future in cybersecurity and look for candidates across industries to join us in soulful work. More at .
**_Role Overview:_**
We are looking for a Senior Research Scientist to help us build and expand
Trellix Network Detection and Response. The ideal candidate is someone who is passionate about solving real problems by turning cutting edge research into operational production solutions. In this role, you will focus on analyzing network-based attacker behavior and develop innovative solutions to address emerging challenges in the field of networking.
**Responsibilities:**
+ Research attacker methodologies and develop innovative solutions to identify detection solutions
+ Knowledge on how machine learning can be applied in networking problems
+ Perform data analysis to measure efficacy and identify methodologies to improve existing solutions
+ Forward Looking Research - Researcher will help develop leading edge prototypes to solve emerging challenges.
+ Threat Analytics - Leverage threat intelligence from different sources, identify patterns to co-relate and establish the origin and flow of attacks.
+ Drive roadmap for detection efficacy and network research operation
**Requirements:**
+ Total 8 to 14years experience with at least three years direct or equivalent experience in areas of network-based threats and other aspects of cyber attacks.
+ Strong understanding of networking protocols (e.g., TCP/IP) and network architecture.
+ Proficiency in programming languages such as Python, C++, or Java.
+ Knowledge of cybersecurity principles and practices
+ Strong analytical, problem-solving, and communication skills
**Preferred:**
+ Hands-on reverse engineering and knowledge of operating system internals.
+ Red teaming experience on various techniques
+ Machine learning experience
**Additional Qualifications**
Above all, the right passion and attitude to solve new challenges
**_Company Benefits and Perks:_**
We believe that the best solutions are developed by teams who embrace each other's unique experiences, skills, and abilities. We work hard to create a dynamic workforce where we encourage everyone to bring their authentic selves to work every day. We offer a variety of social programs, flexible work hours and family-friendly benefits to all of our employees.
+ Retirement Plans
+ Medical, Dental and Vision Coverage
+ Paid Time Off
+ Paid Parental Leave
+ Support for Community Involvement
We're serious about our commitment to a workplace where everyone can thrive and contribute to our industry-leading products and customer support, which is why we prohibit discrimination and harassment based on race, color, religion, gender, national origin, age, disability, veteran status, marital status, pregnancy, gender expression or identity, sexual orientation or any other legally protected status.
Network Security (Immediate joining only)
Posted today
Job Viewed
Job Description
Hi Dear,
Movate (formerly known as CSS Corp) is a global customer experience and technology consulting services provider, disrupting the industry with a unique intersection of industryleading proprietary solutions, resilient operations, and innovative business engagement models. It has emerged as a compelling alternative to the traditional IT and support service providers with its premium service offerings and differentiated value propositions that solve clients’ critical business problems proactively. The company is a digital transformation partner of choice for its clients, which include the world’s top innovators across industries, from mid-market players to large enterprises. Its diverse team of over 11,700 customercentric thinkers, collaborators, and co-creators across 20 global locations, is passionate about helping clients succeed through intelligent automation-led outcomes.
We are currently looking for immediate joiner, interested candidate please share their cv via /whatsapp .
Job Description:
Position : Network Security Engineer (L1 Engineer)
Experience : 2 – 5 years
Job Location : Chennai - Perungalathur
DESIRED PROFILE:
• Minimum 1.5 Years experience in Network Security Engineer
• Strong Knowledge of Networking concepts such as IPSEC VPN, SSL VPN, TCP/UDP, DHCP, DNS, ARP, VLan, SPAN, Ospf, BGP. Fregmentation and Segmentation.
Job Responsibilities:
• Handles first level calls/cases from Enterprise customers.
• Case ownership, documentation and management
• Customer Management, Setting right expectation, Situation handling.
• Driving case progression as per the SLA
• Utilizing tools and systems, Working with relevant groups in the client organization (SE, Support Manager, L3) for case progression and updates
• Backlog Management and meet the expectation set with customers.
• Work on pending cases(backlogs) and drive towards closure
• Periodic follow up as per SLA defined by the client.
Process, Queue Adherence and SLA awareness
• Adhere to the process guidelines specified for the defined environment (SIP, ISO etc.)
• Knowledge Base Article Creation when there is an opportunity for it.
• To contribute knowledge base and the knowledge sharing forum
• Improving customer experience and Building relationship
• Completing PCNSE certification within 120 days of go-live.
Technical skills:
• 2+ years of experience in data networking, routing & switching & network security.
• Network security experience is must.
• Good understanding of OSI Model, TCP/IP protocol suite (IP, ARP, ICMP, TCP, UDP, SNMP, FTP, TFTP).
Experience in VLANS, Tagging - IEEE 802.1q, 802.3ad, 802.1d, 802.1w.
• Experience in IPSEC VPN/SSL-VPN/NAT/GRE/
• Experience on routing protocols – RIP V1/V2, OSPF, and BGP
• Knowledge of Authentication Protocols like TACAS/RADIUS/LDAP will be an added advantage.
• Working knowledge on Cisco, Checkpoint, Juniper, Fortinet, SonicWALL, NetScreen, Juniper SRX, Palo Alto Networks will be an added advantage.
• Experience on troubleshooting tools like Sniffer, Ethereal, and Wireshark.
• CCNA, CCNP, Checkpoint Certification, CCSP, PCNSE certifications will be an added advantage.
• Knowledge of Server Load Balancing (SLB), VRRP and IGMP.
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Linux System Administration
Posted 16 days ago
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Job Description
Description
Education
B.E./B.Tech/MCA in Computer Science
Experience
Must have 3- 6 Years of experience in the field of Linux Administration.
Mandatory Skills/Knowledge
Redhat :-
1. Should have good experience of Linux Administration (OS Installation, Virtualization, Performance Monitoring/Optimization, Kernel Tuning, LVM management, File System Management, Security Management)
2. Should have very good experience in shell scripting and configuration management (Ansible).
3. Must have experience of Install and Configure Pacemaker based high availability Cluster.
4. Must have experience of troubleshooting common cluster issues.
5. Should have worked with Shared Storage and Multipathing.
6. Should have experience in Repository Creation and Management.
7. Should have experience in Os upgrade and patch management.
Preferred Skills/Knowledge
1. Should have worked on Automating tasks by using Shell Scripts, Ansible
2. Basic understanding of Public Clouds (AWS/Azure/GCP /OpenStack)
3. Fundamental understanding of Ceph Storage Solution
Desired Certifications
1. RHEL / Redhat Certified Specialist
Soft Skills
1. Must have good troubleshooting skills
2. Must be ready to learn new technologies and acquire new skills
3. Must be a Team Player
4. Should be good in Spoken and Written English
Linux System Administration
Posted 28 days ago
Job Viewed
Job Description
Jio is the new age technology company leading the Digital, Big Data and AI Revolution that is taking place in India. This revolution is going to impact the lives of 1.3 billion Indians and its our responsibility to cater to the needs of every rural and urban Indians by using every skill and technology that is available at our disposal.
Jio has over 400 million customers in India, generating petabytes of data every second, and hence the need to build infinitely scaling, low latency, high throughput and highly available systems.
Education
B.E./B.Tech/MCA in Computer Science
Experience
Must have 3-6 Years of experience in the field of Linux Administration.
Redhat :-
1. Should have good experience of Linux Administration (OS Installation, Virtualization, Performance Monitoring/Optimization, Kernel Tuning, LVM management, File System Management, Security Management)
2. Should have very good experience in shell scripting and configuration management (Ansible).
3. Must have experience of Install and Configure Pacemaker based high availability Cluster.
4. Must have experience of troubleshooting common cluster issues.
5. Should have worked with Shared Storage and Multipathing.
6. Should have experience in Repository Creation and Management.
7. Should have experience in Os upgrade and patch management.
Preferred Skills/Knowledge
1. Should have worked on Automating tasks by using Shell Scripts, Ansible
2. Basic understanding of Public Clouds (AWS/Azure/GCP /OpenStack)
3. Fundamental understanding of Ceph Storage Solution
Desired Certifications
1. RHEL / Redhat Certified Specialist
Soft Skills
1. Must have good troubleshooting skills
2. Must be ready to learn new technologies and acquire new skills
3. Must be a Team Player
4. Should be good in Spoken and Written English
Network Security Engineer
Posted 12 days ago
Job Viewed