Network Security Engineer

3 weeks ago

Hyderabad Telangana India, Telangana Tata Consultancy Services Full time

We await your innovation at TCS: Hiring |Zscaler|

Greetings from TCS


Required Total Experience: 7-10 years

Work location: Hyderabad.


Required Technical Skill Set:

  • 7+ Years Hands-on development experience on Proxy, Private Access, DLPVPN


MUST HAVE:

  • Hands-on development experience on Zscaler Proxy, ZIA, ZPA, ZCC, ZDX, DLP.


GOOD TO HAVE:


  • Firewall, VPN, NAC.


Education: UG/PG must.


Responsibility of / Expectations from the Role:


ZIA:

  1. Manage, configure, and support ZIA policies, web filtering, URL categorization, firewall and SSL inspection.
  2. Troubleshoot internet access, authentication, application access, and performance issues.
  3. Analyze ZIA logs and Nanolog data to identify traffic patterns, anomalies, and threats.
  4. Configure and manage GRE/IPSec tunnels and PAC files.
  5. Handle escalations related to content filtering, SSL decryption, and bandwidth control.
  6. Integrate ZIA with identity providers (Azure AD, Okta, SAML, LDAP).
  7. Optimize ZIA policies based on security best practices and business needs.
  8. Manage and monitor Zscaler App (Z-App) deployment, updates, and health status.


ZPA:

  1. Configure and maintain ZPA policies, application segments, and connectors.
  2. Troubleshoot ZPA connectivity issues, including App Connector failures and segment misconfigurations.
  3. Perform user access validation and resolve remote access issues.
  4. Collaborate with application teams for new ZPA onboarding and testing
  5. Monitor and optimize ZPA performance and resource utilization.
  6. Integrate ZPA with third-party identity providers for secure Zero Trust Access.
  7. Provide advanced troubleshooting for TCP/UDP connections through ZPA tunnels.
  8. Perform regular ZPA policy reviews and clean-ups.


DLP:

  1. Configure Zscaler DLP policies to protect sensitive data across ZIA and ZPA
  2. Monitor DLP alerts, incidents, and generate reports for compliance audits.
  3. Analyze false positives/negatives and fine-tune DLP rules
  4. Collaborate with compliance and data governance teams on DLP strategies.
  5. Create custom DLP dictionaries, regex, and machine learning classifiers.
  6. Escalate complex DLP use-cases to Zscaler TAC for further analysis.


  • Perform health checks, monitoring, and incident response for ZIA, ZPA, and DLP.
  • Work closely with Zscaler TAC and engineering for critical escalations and RCA.
  • Stay updated with Zscaler new features, releases, and best practices.
  • Provide regular training, knowledge sharing, and mentorship to L1/L2 teams.
  • Strong understanding of networking (TCP/IP, DNS, HTTP/HTTPS, VPNs)
  • Knowledge of networking fundamentals routing switching VLANs SPANs TCP IP protocols. Document network configurations, procedures, and best practices.
  • Zscaler certifications like ZCCA-IA, ZCCA-PA, ZCCP-IA/PA are preferred.


Regards,

Shelsiya M

  • Network Security Analyst

    3 weeks ago

    Hyderabad, Telangana, India, Telangana Castellum Labs Full time

    NOTE -- This role is for you, IF YOU ARE ANETWORK ENGINEER AND WANT TO SHIFT INTO SECURITY.NETWORK SECURITY ADMIN & WANT TO SHIFT TO NETWORK PEN/AUDIT/CONTROLS.Company DescriptionCastellum Labs is a next-generation cybersecurity technology venture based in Hyderabad, India. Since 2018, our mission has been to revolutionize the cybersecurity service model. We...

  • Network Security Engineer

    4 weeks ago

    Hyderabad, Telangana, India, Telangana Tata Consultancy Services Full time

    Greetings from TCS!!Role: Network security engineerExperience: 10+yearsLocation: Bangalore Hyderabad Chennai Mumbai Indore***Drive date: 9-Oct-2025***Keywords:Palo Alto Firewall, Panorama, F5 LTM Load Balancer and GTM, InfobloxJob Description:Should offer end to end IT infrastructure and Network Administration Network Security)Should be dealing with...

  • Senior Network Security Engineer

    4 weeks ago

    Hyderabad, Telangana, India, Telangana Tata Consultancy Services Full time

    Skill : Senior Network Security EngineerYOE : 8 to 12Location : HyderabadJob Description:Provide expert-level support for network security incidents, troubleshoot complex issues, and perform root cause analysis.Should demonstrate experience in leading the deployment and configuration of firewalls, intrusion detection/prevention systems, VPN solutions, and...

  • Senior Network Security Engineer – Vectra and Gigamon

    3 weeks ago

    Hyderabad, Telangana, India, Telangana Tata Consultancy Services Full time

    Senior Network Security Engineer – Vectra and Gigamon Preference: Immediate JoinersExperience: 6+ yearsSkills: Vectra NDR and Gigamon SSL interceptor Location: Hyderabad, Bangalore, ChennaiRequired Qualification: Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, or a related field.6+ years of experience in managing and...

  • Security Engineer, Network

    1 week ago

    Hyderabad, Telangana, India CDK Global Full time ₹ 15,00,000 - ₹ 25,00,000 per year

    Position Title: Network Security EngineerReports To: Director of Infrastructure SecurityThe Lead Network Security Engineer is accountable for securing CDK's network connecting thousands of CDK customers, ISVs, and OEMs - including perimeter, corporate, on-premises data center, public cloud, and 3rd party networks. This individual plays a key technical...

  • Network Security: Juniper Regression

    4 weeks ago

    Hyderabad, Telangana, India, Telangana Tata Consultancy Services Full time

    Role** EngineerRequired Technical Skill Set** Keywords · VPP, DPDK, CNF, VNF, IDS, IPS, DPI, QOS, Firewall, ZBF, SWG. · Golang, C, Unix, C++, GRPC, K8S, Kubernetes, Docker, Network stack, linux kernel, system programming, Forwarding, Fastpath, datapath, distributed systems, SDWAN, Visibility, IPSecDesired Experience Range** 8 to 12 and 12 +Location of...

  • Network Security Engineer

    2 weeks ago

    Hyderabad, Telangana, India Amgen Technology Private Limited Full time ₹ 8,00,000 - ₹ 12,00,000 per year

    Senior Associate Network Security Engineer Career CategoryInformation Systems Job Description ABOUT AMGEN Amgen harnesses the best of biology and technology to fight the world's toughest diseases, and make people's lives easier, fuller and longer. We discover, develop, manufacture and deliver innovative medicines to help millions of patients. Amgen...

  • Network Security Engineer

    1 week ago

    Hyderabad, Telangana, India Providence Global Center Full time ₹ 20,00,000 - ₹ 25,00,000 per year

    What will you be responsible for?Design, implement, and optimize enterprise firewall, WAF, and network security platforms.Lead upgrades, patching, and lifecycle management of firewalls, proxies, and IDS/IPS systems.Architect and enforce security policies across hybrid and cloud-connected networks.Collaborate with vendors on escalations, bug fixes, and...

  • Network Security Engineer

    2 weeks ago

    Hyderabad, Telangana, India, Telangana Cloud4C Services Full time

    Experience: 4 – 10 YearsWork Location: HyderabadWork Mode: Work from OfficePrimary Skills:Routing & Switching: Strong understanding of L2/L3 networkingLoad Balancers/WAF: Hands-on experience with A10, F5, Citrix NetScalerFirewalls: Working knowledge of FortiGate, Palo Alto, Cisco ASA, CheckpointSwitches: Configuration and troubleshooting on Dell and Cisco...

  • Network Security Analyst

    7 days ago

    Hyderabad, Telangana, India Castellum Labs Full time ₹ 9,00,000 - ₹ 12,00,000 per year

    NOTE -- This role is for you,IF YOU ARE ANETWORK ENGINEER AND WANT TO SHIFT INTO SECURITY.NETWORK SECURITY ADMIN & WANT TO SHIFT TO NETWORK PEN/AUDIT/CONTROLS.Company DescriptionCastellum Labs is a next-generation cybersecurity technology venture based in Hyderabad, India. Since 2018, our mission has been to revolutionize the cybersecurity service model. We...