Navin Vijaykumar Singh

Key Responsibilities:

• Designed and deployed the core network infrastructure for a greenfield local ISP, including routing, switching, access layer, and FWA integration.
• Prepared detailed High-Level Design (HLD) and Low-Level Design (LLD) documents for the ISP’s multisite core network, customer distribution, and service layers.
• Oversaw integration of IPTV multicast services into the ISP network, coordinating with a remote team to deploy the end-to-end IPTV solution (middleware, encoders, STBs, EPG).
• Configured CGNAT (Carrier Grade NAT) on MikroTik CCR routers to manage public IP exhaustion while ensuring NAT session tracking and performance.
• Implemented firewall and port-forwarding rules to expose essential services (IPTV portal, management dashboards) via public IPs with SSL termination.
• Coordinated with radio teams for FWA site planning and integration of WeLink PTP/PTMP links into the Layer 2/3 routing scheme.
• Assisted in capacity planning, IP schema design (IPv4), and allocation of static and dynamic pools for IPTV, broadband, and management traffic.
• Collaborated with remote backend and OSS/BSS teams to integrate Sonar, Zabbix, and MikroTik API scripts for service provisioning and monitoring.
• Provided documentation and training to local support engineers on L2/L3 troubleshooting, network failover, and IPTV QoS assurance.
• Deployed and monitored infrastructure using Zabbix agent2 on Ubuntu 24.04, enabling real-time telemetry and uptime statistics for field devices.
• Facilitated remote access and bandwidth management via MikroTik routers and dynamic Sonar API integration for customer bandwidth control.

Technologies & Tools:

• Networking: MikroTik RouterOS, VLAN, NAT, CGNAT, OSPF
• Monitoring: Zabbix 6.x (Agent2), SNMP, Telegram/Slack alerts
• Linux: Ubuntu 22.04/24.04, Bash, systemd services
• Automation: Sonar API (bandwidth control), JSON scripting
• Documentation: Excel, Google Sheets, Site Survey Reports
• Storage: HPE MSA 2060, iSCSI, Fibre Channel, LUN zoning
• Networking: MikroTik RouterOS, NAT, port forwarding, VLANs
• Firewall & Access: UFW, MikroTik Firewall, public-to-private IP mapping
• Web & Security: NGINX, HTTPS (Let's Encrypt), Ubuntu 22.04
• Protocols: TCP/IP, HTTP/HTTPS, iSCSI, DNS

Key Technical Contributions (Additional Points):

• Configured and integrated HPE SAN MSA 2060 for centralized storage in the core network, enabling shared iSCSI volumes for VM and application workloads.
• Performed zoning and LUN mapping for compute nodes over Fibre Channel and iSCSI protocols, optimizing throughput for backend services.
• Implemented port forwarding and NAT rules to securely expose internal services (web applications, portals) to the public internet via MikroTik edge routers.
• Hardened the SAN-accessible systems using dedicated VLANs, firewall isolation, and restricted access controls, ensuring secure storage usage across the network.
• Managed Ubuntu-based application servers hosting customer portals, with NGINX and firewall NAT rules to route traffic from public IPs to internal services.
• Enabled HTTPS access with Let's Encrypt SSL and managed UFW rules for remote access provisioning.
• Collaborated with networking and security teams to ensure segmented SAN communication and zero direct SAN exposure to public networks.

• Responsible for seeking and review competitive bids, quotes, and proposals from vendors and contractors.
• Assists IT support function with preparing purchases as per the procurement process.
• Create all purchase requisitions following approval process.
• Responsible for product support and warranties, leasing, maintenance, and hardware/software contracts, as well as hardware purchases, and license information.
• Interface between Vendor and finance team for Invoice Management & payments.
• Handling the IT Asset (Configuration, Request, Problem, and Availability) Management.
• Send/received assets to Branch locations as per requirement.
• Co-ordinate with Vendor for repairs & maintenance of assets.
• Knowledge on Rental printer’s concept.
• Strong working knowledge of Microsoft Office especially Excel for Data Analysis & Reporting.
• Periodic Asset Audits for all offices.
• Asset insurance management.

• Responsible for the day-to-day IT requirements of the company such as user management, trouble shooting, help and advice.
• Maintaining desktop applications, local area networks, IT security and telecommunications.
• Vendor management, Asset management, Incident Management, Change Management & reporting (HP ITSM).
• Strengthening the IT infrastructure through to implementing new technologies.
• Responsible for hardware and software installation, maintenance and repair.
• Performing routine audits of systems and software.
• New Office build.
• Manage Incidents 24x7 and ensure minimal disruption to the service and fast service restoration.
• Attend the required trainings and courses (technical and soft skills) to increase the current competence level.
• Complete setup including network, electrical and telecommunications.
• Hands on experience with Huawei Networking devices (Network Wired and wireless, PBX, surveillance).
• Basic knowledge of Huawei server deployment in Huawei office premises for storage and print server usage.
• Create IT requirements (such as electrical points, network points, network devices, telephone lines management, printers etc) as per the staff count and raise the requirement for the same.
• Configuration of the new hardware installed.
• ISP link termination and testing.
• Coordinate internal resources and third parties/vendors for the flawless execution of multiple projects.
• Ensure that all projects are delivered on-time, within scope and within budget.
• Assist in the definition of project scope and objectives, involving all relevant internal stakeholders and ensuring technical feasibility.
• Ensure resource availability and allocation.
• Develop a detailed project plan to monitor and track progress.
• Manage changes to the project scope, project schedule, and project costs using appropriate verification techniques.
• Measure performance using appropriate project management tools and techniques.
• Report and escalate to management as needed.
• Manage the relationship with the client and relevant stakeholders.
• Perform risk management to minimize potential risks.
• Establish and maintain relationships with third parties/vendors.
• Create and maintain comprehensive project documentation.
• Meet with clients to take detailed ordering briefs and clarify specific requirements of each project.
• Delegate project tasks based on junior staff members' individual strengths, skill sets, and experience levels.
• Track project performance, specifically to analyze the successful completion of short and long-term goals.
• Meet budgetary objectives and make adjustments to project constraints based on financial analysis.
• Develop comprehensive project plans to be shared with clients as well as other staff members.
• Use and continually develop leadership skills.
• Attend conferences and training as required to maintain proficiency.
• Perform other related duties as assigned.
• Environment Manager Installation and Monitoring in server rooms.
• Managing routine updates on network software and password change on network devices on all the network devices as per the IS recommendations.
• Manage the IT budgets and expenditure on hardware and software.
• Developing & maintaining the company IT systems, software and databases.
• Recommending and implementing improvements and efficiencies.
• Having excellent time management, confidentiality & communication skills.
• Having strong IT, commercial, planning and budgeting skills.
• Management of server software and associated backup routines.
• To evaluate, test, advise, train and support I.T. related projects.
• Procurement of IT hardware, software and maintenance products & services.
• Responsible for the recruitment and training of new staff.
• Maintaining documentation of changes regarding users, functions & systems.
• Managing the internal & hosted network infrastructure including: servers, switches, telephony & surveillance devices.
• Installed, configured, tested and maintained operating systems, application software, and system management tools.
• Improved IT system performance by implementing proactive maintenance processes and timely upgrades.
• Reduced downtime by quickly diagnosing and resolving hardware, software, and network issues.
• Provided remote support to offsite users, ensuring minimal disruption during business travel or remote work scenarios.