Manage and troubleshoot advanced network, firewall, and voice infrastructure issues. Configure Cisco routing, switching, Nexus data center systems, Cisco and Check Point firewalls, SIP routing, and Cisco voice platforms. Lead root-cause analysis, critical escalations, upgrades, optimizations, and infrastructure changes while ensuring high availability, security, and performance. Guide L2 engineers and provide end-to-end resolution for complex network, firewall, and VoIP incidents.
Job Title: NOC Engineer – L3
Location: Bangalore
Department: IT-INFRA
Experience – 5-8 Years
Role Overview:
We are looking for an L3 NOC Engineer – Network & Voice with strong expertise in Cisco
networking, firewalls, and VoIP technologies. The role involves advanced troubleshooting,
managing network and voice infrastructure, implementing upgrades and optimizations, handling
critical escalations, and ensuring high availability, security, and performance across the
environment.
Key Responsibilities:
• Lead advanced troubleshooting and RCA for network, firewall, and voice issues.
• Configure and manage Cisco routing, switching (including Nexus), and firewall solutions.
• Manage and optimize Cisco firewall and Check Point firewall policies and security.
• Handle SIP routing, voice call flows, and integration with Cisco voice platforms.
• Implement network, firewall, and voice changes, upgrades, and optimizations.
• Ensure high availability, performance, and security across network and voice
environments.
• Guide L2 engineers and handle escalations.
Technical Expertise:
• Strong expertise in Cisco routing, switching, and Cisco Nexus (data center switching).
• Deep knowledge of routing protocols (BGP, OSPF, etc.) and QoS.
• Hands-on experience with Cisco firewall and Check Point firewall configuration and
troubleshooting.
• Strong experience in Cisco Voice / VoIP technologies (SIP, CUCM, gateways, SIP routers).
• Knowledge of NAT, VPN, security policies, and voice traffic optimization.
• Ability to troubleshoot complex network, firewall, and voice issues end-to-end.
Certifications (Preferred):
• CCNP (Enterprise / Security / Collaboration)
• CCNA (mandatory baseline)
• Check Point CCSA / CCSE
• Cisco Security / Collaboration certifications (added advantage)
ZYBISYS CONSULTING SERVICES LLP Bengaluru, Karnataka, IND Office
Bengaluru, India
Similar Jobs
Fintech • Financial Services
Leads software engineering initiatives focused on generative AI. Designs, codes, tests, debugs, documents, and deploys complex technology solutions while guiding less experienced engineers. Develops AI and machine learning applications, including RAG pipelines, model training, tuning, microservices, cloud infrastructure, integrations, CI/CD, observability, and DevOps practices. Collaborates with technical stakeholders, resolves complex issues, supports enterprise risk and compliance requirements, and evaluates emerging technologies through proofs of concept.
Top Skills:
AjaxAngularAnsibleSparkAWSAzureDatadogDevOpsElk StackGoogle Cloud Platform (Gcp)GrafanaHadoopHarnessInfrastructure As CodeJavaScriptJenkinsJqueryLangchainLanggraphLarge Language Models (Llms)MicroservicesPrometheusPythonPyTorchReactRestRetrieval-Augmented Generation (Rag)ServicenowSoapTensorFlowTest-Driven DevelopmentVector Databases
Fintech • Financial Services
Supports institutional investment operations through trade processing, transaction reconciliation, inquiry research, exception resolution, documentation review, and operational issue management. Maintains risk, audit, compliance, and control requirements; recommends process improvements; participates in initiatives; and guides less experienced team members. Collaborates with internal and external stakeholders to deliver accurate, timely services. Requires at least two years of institutional investment operations experience and availability for a 5:30 PM to 2:30 AM shift.
Fintech • Financial Services
Develop, test, debug, document, upgrade, and deploy Java full-stack applications and microservices. Improve service quality and availability, evaluate technology solutions, resolve technical issues, and support security and compliance requirements. The role requires strong experience with Java, microservices architecture, APIs, cloud and distributed systems, Angular front-end development, testing frameworks, observability tools, and modern architectural patterns. Candidates may also lead a small technical team and contribute to Scrum-based development.
Top Skills:
Ai ToolsAngularAngularjsApigeeAppdynamicsAWSBootstrapCucumberDistributed LoggingDistributed TracingDomain-Driven DesignElk StackFongoGitGradleJ2EeJavaJunitKafkaMicroservicesMockitoMongoDBPcfPrimengRdbmsService DiscoveryService MeshSplunkSpring Cloud GatewayTestng
What you need to know about the Bengaluru Tech Scene
Dubbed the "Silicon Valley of India," Bengaluru has emerged as the nation's leading hub for information technology and a go-to destination for startups. Home to tech giants like ISRO, Infosys, Wipro and HAL, the city attracts and cultivates a rich pool of tech talent, supported by numerous educational and research institutions including the Indian Institute of Science, Bangalore Institute of Technology, and the International Institute of Information Technology.
