Abhinav Sharma

• Captive POrtal Management (Public and Guest WiFi):
• Configuration & Maintenance: Set up, configure, and manage captive portals for public and guest WiFi access, ensuring smooth user authentication, security, and compliance with organizational policies.
• User Authentication & Access Control: Implement and manage various methods of authentication (e.g., username/password, social media login, vouchers) through captive portals to ensure seamless guest access while securing the network.
• Custom Branding & User Experience: Customize the captive portal interface for a branded and user-friendly experience, including splash pages, terms of service, and data collection forms.
• Policy Enforcement: Ensure that access policies are effectively enforced via the captive portal, such as bandwidth limits, time restrictions, and access to specific resources.
• SSL Certificates Management:
• SSL/TLS Configuration: Manage and configure SSL/TLS certificates to ensure encrypted communications between end-users and the network, safeguarding sensitive data.
• Certificate Renewal: Regularly monitor SSL certificates for expiration and ensure timely renewal to prevent security breaches and service interruptions.
• Secure Portal Access: Ensure that captive portals and other WiFi-related services are served over HTTPS to protect against man-in-the-middle (MITM) attacks and to maintain user trust.
• Load Balancer Configuration and Management:
• Load Balancing for Scalability: Configure and manage load balancing mechanisms to ensure that traffic is evenly distributed across multiple access points, captive portal servers, and backend services.
• Performance Optimization: Monitor load balancer performance and troubleshoot any issues related to traffic distribution, ensuring high availability and minimal downtime for WiFi services.
• Troubleshooting and Issue Resolution:
• Network Troubleshooting: Proactively identify and resolve issues related to WiFi connectivity, captive portal access, and network performance. This includes troubleshooting signal interference, device connectivity, and routing issues.
• Client and Server Logs Review: Analyze logs from client devices, captive portals, network appliances, and servers to pinpoint errors or performance degradation.
• Collaborating with Support Teams: Work with internal teams or third-party support (ISP, hardware providers) to resolve hardware, software, or network-related issues.
• Collaboration with Business and Technical Teams:
• Requirements Gathering: Engage with business and product teams to gather and understand new requirements for the public and guest WiFi experience (e.g., new authentication methods, data collection, or custom user experiences).
• Technical Discussions: Participate in technical discussions regarding the architecture of the WiFi network, captive portal design, network security, and compliance standards.
• Aligning WiFi Solutions with Business Goals: Work to ensure that WiFi services align with business goals and objectives, such as improving customer engagement or optimizing operational efficiency.
• Capacity Planning: Discuss future scalability needs and assist in planning for network growth based on expected user traffic and new feature implementations.
• Expertise in Network Protocols:
• • TCP/IP and OSI Model Knowledge: Demonstrate in-depth knowledge of the OSI model, with a particular focus on the layers related to network troubleshooting, such as Layer 2 (Data Link) and Layer 3 (Network). Understand and optimize TCP/IP, UDP protocols, and their implications on WiFi network performance.
• Protocol Troubleshooting: Troubleshoot network issues related to IP addressing, routing, NAT, ARP, DNS, and DHCP. Be proficient in capturing and analyzing traffic using tools like Wireshark.
• Radius and Diameter Protocols: Extensive experience with RADIUS (Remote Authentication Dial-In User Service) for authentication, authorization, and accounting (AAA) of WOFi users.
• Configure and maintain RADIUS servers to authenticate WiFi user securely.
• Implement Diameter protocol (an enhanced version of RADIUS) when required, especially in environments needing stronger security or more advanced features.
• 802.1X Authentication: Ensure that 802.1X (a standard for network access control) is properly configured for enhanced security for enterprise users, integrating with RADIUS/Diameter for access control.
• Security and Compliance:
• WiFi Security Standards: Implement industry-standard encryption methods (e.g., WPA2/WPA3) and secure network protocols to protect WiFi traffic.
• Guest Access Management: Manage access control lists (ACLs), firewalls, and network segmentation for guest users to prevent unauthorized access to internal networks.
• Compliance and Data Privacy: Ensure that WiFi networks comply with relevant privacy regulations (e.g., GDPR) and security standards, particularly when handling guest data.
• Performance Monitoring and Optimization:
• WiFi Performance Analytics: Monitor and analyze WiFi performance metrics, such as signal strength, bandwidth usage, packet loss, and client connectivity, to proactively improve service quality.
• Network Capacity Management: Ensure that network infrastructure (access points, routers, etc.) is sufficient to handle expected traffic loads, scaling as needed to maintain high service levels.
• Client Device Compatibility: Regularly assess the compatibility of common client devices (smartphones, laptops, IoT devices) with WiFi infrastructure, ensuring optimal performance across a wide range of devices.
• Documentation and Reporting:
• Documenting Network Architecture: Maintain detailed documentation of the WiFi network design, configurations, protocols used, security measures, and operational procedures.
• Incident Reporting and Analysis: Document and report incidents, outages, or performance degradation, including root cause analysis and corrective actions.
• Reporting to Management: Provide regular reports to management on WiFi performance, user statistics, troubleshooting outcomes, and security incidents.
• Continuous Improvement:
• Research New Technologies: Stay up-to-date with the latest trends in WiFi technologies, such as WiFi 6/6E, IoT network integration, and cloud-based WiFi solutions.
• Process Improvement: Continuously analyze and improve WiFi processes, user experience, and network performance to align with evolving business needs.

AAA Management: Oversee the configuration and maintenance of AAA servers, ensuring secure user authentication, authorization, and accounting for WiFi users through RADIUS/Diameter protocols.
Diameter Gateway: Manage and support Diameter-based systems for advanced authentication and accounting, particularly in high-security or large-scale environments.
Captive Portal Management: Administer Public and Guest WiFi captive portals, ensuring smooth user access, seamless authentication, and compliance with security policies.
Troubleshooting & Support: Diagnose and resolve connectivity issues, performance problems, and security vulnerabilities in WiFi networks, captive portals, and AAA systems.
Collaboration with Business Teams: Engage in discussions with business teams to understand new technical requirements and align WiFi infrastructure with organizational goals.
Engagement with Presales Teams: Work closely with presales teams to define and propose new technical solutions for customers, ensuring alignment with business needs and technical feasibility.

AAA deployment, ongoing support, and future network expansions, while adapting to Skyvera’s new operational landscape and strategic goals post-acquisition from Sterlite Technologies DMCC

AAA deployment, ongoing support, and future network expansions, while adapting to Skyvera’s new operational landscape and strategic goals post-acquisition from Sterlite Technologies DMCC

• VoWiFi Network Design & Planning: Collaborate with network architects and engineers to design and plan the VoWiFi infrastructure, ensuring compatibility with existing WiFi networks and telecom systems.
• Implementation & Configuration: Deploy and configure VoWiFi services, including necessary hardware, software, and network elements (e.g., SIP servers, VoWiFi gateways) to enable seamless voice services over WiFi.
• Integration with Core Network: Ensure proper integration of VoWiFi with existing core network elements, such as IMS (IP Multimedia Subsystem), SBC (Session Border Controller), and other telecom infrastructure.
• Testing & Quality Assurance: Perform comprehensive testing of VoWiFi services to ensure high voice quality, connectivity, and call reliability. Troubleshoot and resolve issues during the testing phase.
• Monitoring & Optimization: Monitor VoWiFi service performance post-deployment, identifying and resolving network or service issues. Continuously optimize performance for optimal user experience.
• Collaboration with Stakeholders: Work closely with cross-functional teams (e.g., network operations, presales, business teams) to ensure that technical requirements align with business goals and end-user needs.
• Documentation & Reporting: Maintain detailed documentation of the deployment process, configurations, and troubleshooting steps. Provide regular progress updates and reports to management and clients.
• Customer Support & Troubleshooting: Provide post-deployment support, resolving customer issues related to VoWiFi services and ensuring consistent service delivery.

• AAA System Deployment:
• Lead the deployment and configuration of AAA solutions (RADIUS/Diameter) for fixed broadband networks to manage authentication, authorization, and accounting processes.
• Ensure seamless integration of AAA with client systems, including user databases, network infrastructure, and billing systems.
• Project Implementation:
• Oversee the end-to-end deployment process, from planning and configuration to testing and final implementation of AAA solutions.
• Ensure adherence to project timelines, milestones, and deliverables, coordinating with internal teams, vendors, and client stakeholders.
• Client Technical Discussions:
• Engage in technical discussions with the client to understand their requirements, tailor AAA solutions to their needs, and provide guidance on best practices for broadband network security and management.
• Address any technical challenges, advise on configurations, and offer solutions that align with the client's business objectives.
• Collaboration with Operations Team:
• Provide support to the operations team, ensuring the AAA system is running smoothly after deployment. Troubleshoot and resolve any issues related to user authentication, bandwidth management, or accounting.
• Assist in knowledge transfer to the operations team, providing training and documentation to ensure effective system management and maintenance.
• New Project Deployment:
• Participate in planning and deploying AAA solutions for new projects or network expansions, ensuring that new infrastructure is integrated with existing systems.
• Work on customizing AAA configurations for new business models, service offerings, or network setups.
• System Monitoring & Support:
• Monitor the performance of AAA systems, ensuring continuous availability, security, and reliability. Handle troubleshooting and support issues related to authentication, authorization, and accounting processes.
• Collaborate with the support team to address and resolve issues related to user connectivity, account management, or system faults.
• Documentation & Reporting:
• Maintain detailed documentation of the AAA system architecture, deployment processes, configurations, and troubleshooting steps.
• Provide regular status updates and reports to the client and internal teams, ensuring alignment with project goals and timelines.