2,591 Network Maintenance jobs in India

TCS present an excellent opportunity for Network Security

Job Location: Chennai / Bangalore

Experience required :8- 12 yrs

Required skills: Fortigate firewalls, Cisco ASA Firewalls, Checkpoint firewalls

Virtual Interview Date: 24-Oct-25 (Friday)

·   Experience configuring and managing enterprise firewalls and gateway devices

·  Should have experience in Checkpoint / Fortigate firewalls

·  Maintaining & implementation of the SOP for Network security

·  Good knowledge in configuring Site to Site VPN, SSL VPN, security gateways

·  Experience in configuring and supporting F5 load balancers & APM devices

·  Reporting the security analysis of findings

·  Monitoring of web security gateways, perimeter security, network access controls, endpoint security

Company Overview

Suzlon Group is among the world's leading renewable energy solutions provider that is revolutionizing and redefining the way sustainable energy sources are harnessed across the world. Presence in 17 countries across Asia, Australia, Europe, Africa and the Americas. Sustainable development is the creed that underpins Suzlons bespoke initiatives to protect the environment, strengthen communities and propel responsible growth. Suzlon is headquartered at One Earth - Pune, which is a Platinum LEED (Leadership in Energy and Environment Design) certified, and GRIHA 5 star rated campus and is also among the greenest corporate campuses in the world.

Qualifications and Skills

• Strong Skills: Cisco Routing, Switching; Proficient: Fortinet, Cisco ASA.
• Knowledge of MPLS & IPSEC, LAN, and WAN.
• Experience in enterprise network security.
• Analytical and systematic approach to problem solving.
• CCNA certification or equivalent.
• CCNP, CCSP, CCDP - Cisco Certifications.

Roles and Responsibilities

• Design, implement, and manage network security measures to protect Suzlons data and infrastructure from cyber threats.
• Monitor and analyze network traffic to detect and mitigate potential security incidents and breaches.
• Collaborate with IT teams to ensure seamless integration and operation of network security protocols across all functions.
• Conduct regular security audits and assessments to evaluate the effectiveness of current security measures and recommend improvements.
• Respond promptly to network security alerts and incidents, performing root cause analysis to prevent future occurrences.
• Develop and enforce security policies and protocols, ensuring compliance with industry standards and regulatory requirements.
• Educate and train staff on security awareness and best practices to foster a culture of security-consciousness within the organization.
• Stay informed about the latest network security technologies and trends to continuously enhance Suzlons security posture.

We are seeking an experienced Network and Security Administrator to join our IT Support team at Maheshwaram. This role has been created to address the increased number of systems and firewalls at our location, ensuring effective monitoring and management of firewall logs.

Configure, maintain, and troubleshoot firewalls, VPN setups, and security certificate algorithms.

Monitor and maintain network security tools and logs to ensure optimal performance and incident management.

Implement and manage network routing, switching, and VLANs.

Administer Windows Server components, including Active Directory, DNS, DHCP, and Group Policy Objects.

Configure and troubleshoot web services, database services, and other applications on Linux operating systems.

Oversee MSSQL Server and Team Foundation Server (TFS) concepts.

Manage IIS (Internet Information Services) configurations.

Administer and maintain anti-virus servers and backup solutions.

Conduct Business Continuity Planning (BCP) drills to ensure readiness.

Troubleshoot GPU-based applications effectively.

Collaborate on SAP Basis tasks (preferred but not mandatory).

• Design, install, configure, and maintain network hardware and software components, including routers, switches, firewalls, and wireless access points.
• Perform network troubleshooting and diagnostics to resolve connectivity and performance issues.
• Implement and manage network security measures, including intrusion detection/prevention systems and VPNs.
• Monitor network performance using various tools and implement optimizations to enhance speed and efficiency.
• Develop and maintain comprehensive network documentation, including diagrams, configurations, and standard operating procedures.
• Plan and execute network upgrades and migrations with minimal disruption to services.
• Respond to network incidents and outages, providing timely resolution and post-incident analysis.
• Collaborate with cross-functional IT teams to support application deployments and infrastructure changes.
• Stay current with emerging network technologies and industry best practices.
• Provide technical leadership and mentorship to junior network engineers.
• This is a fully remote position, requiring independent work and proactive communication within a distributed team.

• Bachelor's degree in Computer Science, Information Technology, Networking, or a related field; relevant certifications (e.g., CCNA, CCNP, CompTIA Network+) are highly desirable.
• Minimum of 6-8 years of experience in network installation, configuration, and maintenance.
• Strong proficiency with networking protocols such as TCP/IP, BGP, OSPF, EIGRP, and MPLS.
• Hands-on experience with major network hardware vendors (e.g., Cisco, Juniper, HP).
• Expertise in network security principles and technologies (e.g., firewalls, VPNs, IDS/IPS).
• Proficiency in network monitoring tools (e.g., SolarWinds, Nagios, PRTG).
• Excellent analytical, problem-solving, and troubleshooting skills.
• Strong written and verbal communication skills, with the ability to document complex technical information clearly.
• Proven ability to work independently and manage time effectively in a remote setting.
• Experience with cloud networking environments (AWS, Azure, GCP) is a plus.

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:

1. Should offer end to end IT infrastructure and Network Administration (Network Security)
2. Should be dealing with fault-ticket (Service-Now), in co-ordination with Customer, application team or device vendor to resolve issues
3. Should be dealing with various vendors & troubleshooting of various Network security related issues.
4. Technical Support and Fault Management/troubleshooting for Network firewall and Load balancer issue.
5. Configuration of firewall rules to allow or deny access as per the user/application requirement.
6. Strong knowledge on leveraging advanced firewalls features like APP-ID, User-ID, Global Protect, Wild Fire, NAT policies and Security Profiles.
7. Profound working knowledge of administration and management of Palo Alto firewalls using centralized Panorama and PAN-OS upgradation.
8. Configuring various advanced features (Profiles, monitors, Redundancy, SSL Termination, Persistence, SNATS, HA on F5 BIGIP appliances SSL termination and initiation.
9. Worked on configuring and troubleshooting Nodes, Pools, Profiles, Virtual Servers, SSL Certificates offloading.
10. 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.
11. Working experience on code upgrades of virtual and physical F5 LTM and GTM devices for feature and performance improvement and to mitigate security risk.
12. Supported Infoblox appliances grid environment for DNS, DHCP and IP Address Management tools (IPv4) for the enterprise network.
13. Worked on creating and maintaining new subnets, host with several record entries like CNAME, PTR, A, etc) with DHCP scopes using Graphical User Interface.
14. In depth Knowledge on ITIL processes like Incident management, Problem Management, Configuration management and Change Management processes.
15. Candidate should have been in a customer facing role with excellent communication skills.
16. Strong technical knowledge and eagerness to learn new technologies

Regards,

Priscilla Nancy

HR TAG – CSP

Tata Consultancy Services

Skill : Palo Alto Prisma Admin

YOE : 10 to 12

Location : Hyderabad

JD:

• Ability to understand and apply logical constructs in designing access rules, browser isolation policies, and user segmentation strategies.
• Proficient in translating business requirements into technical configurations using structured logic and policy frameworks.
• Configuration, Deployment, and Ongoing Management of the Prisma Access Browser solution and its associated security policies, including access controls and user profiles across user endpoints.
• Monitoring & Troubleshooting: Using Palo Alto tools and dashboards to monitor traffic, identify trends, detect anomalies, and resolve issues.
• Documentation: Creating deployment guides, SOPs, FAQs, and user onboarding materials.

Location: Pan India

Must have: Network Security-Proxy, RSA, Firewall added advantage

1. Responsible for managing and maintaining Secure Web Gateways and proxy solutions such as Blue Coat, Zscaler, or similar, ensuring high availability and optimal performance.

2. Conduct regular health checks of web security infrastructure and proactively address potential issues to maintain security posture.

3. Troubleshoot and resolve technical issues related to proxy, email security, and MFA platforms; work closely with vendors to ensure timely support and updates.

4. Plan and execute version upgrades of cybersecurity tools, ensuring thorough testing and smooth rollouts to avoid disruption.

5. Implement and manage URL filtering policies, including whitelisting and blacklisting, to protect users from malicious websites while maintaining access to essential resources.

6. Optimize web filtering policies to strike a balance between usability and security.

7. Manage multi-factor authentication platforms, handling tasks such as token issuance, revocation, and device resynchronization to support secure user access.

8.Use tools like ServiceNow to track and manage incident tickets, ensuring resolution within defined SLAs and escalating complex cases when necessary.

9. Review firewall rule requests from a cybersecurity and risk perspective to ensure they align with organizational standards and security policies.

10. Support internal audits and regulatory compliance efforts by providing required documentation and evidence of controls.

11. Maintain detailed and accurate documentation of configurations, incidents, changes, and resolutions to support knowledge sharing and operational transparency.

12. Perform user account reconciliation periodically to ensure identity and access controls are accurate and up to date.

13. Collaborate with leadership and cross-functional teams to align security operations with broader organizational goals.

14. Provide training and knowledge sharing to team members to build overall team capability and strengthen cybersecurity posture.

Experience : 4 – 10 Years

Work Location : Hyderabad

Work Mode : Work from Office

Primary Skills :

• Routing & Switching : Strong understanding of L2/L3 networking
• Load Balancers/WAF : Hands-on experience with A10 , F5 , Citrix NetScaler
• Firewalls : Working knowledge of FortiGate , Palo Alto , Cisco ASA , Checkpoint
• Switches : Configuration and troubleshooting on Dell and Cisco switches
• Virtualization Networking : VMware Networking concepts
• Cloud Networking :
• Azure : VNet, Peering, NSG, UDR, VPN (S2S/P2S), Load Balancer, ExpressRoute, App Gateway (WAF), CDN, Azure Firewall, DDOS, DNS, Azure Virtual WAN, Front Door, Bastion, NVA, Network Watcher
• AWS , OCI , GCP : Exposure to networking services on these platforms

Job Responsibilities :

• Design and implement complex network architectures and cloud network solutions
• Actively troubleshoot and resolve customer issues related to on-prem and cloud networks
• Plan and execute deep-dive technical activities and lead network-related projects
• Manage and close support cases efficiently using internal ticketing systems
• Ensure SLA compliance, incident lifecycle management, and knowledge base contributions
• Drive process improvement and maintain documentation in the central repository
• Participate in on-call support rotation
• Collaborate cross-functionally to align network infrastructure with business needs
• Mentor team members and share technical knowledge through how-to guides and meetings

Requirements :

• Hands-on experience in routing, switching , and firewall/load balancer technologies
• Strong background in hyperscale cloud networking (Azure mandatory; AWS, OCI, GCP desirable)
• Exposure to ITIL practices ; ITIL certification is a plus
• Experience working with ticketing tools and monitoring systems
• Excellent communication and presentation skills
• Ability to handle client interactions , understand requirements, and suggest solutions
• Must be self-driven , proactive, and capable of managing deadlines

Certifications (Preferred) :

• Cisco CCNP (preferred) or multiple CCNA certifications
• CCIE (desirable)
• Azure / AWS certifications are an added advantage
• ITIL Foundation certification