Network Engineer at Graviton in Gurugram, Haryana, India

Responsibilities

• Design, deploy, operate, and troubleshoot low-latency network infrastructure used by trading firms.
• Manage connectivity to global stock exchanges, brokers, market-data providers, and ISPs.
• Build and maintain colocation infrastructure including routers, switches, Layer-1 devices (added advantage), structured cabling and cross connects.
• Configure and support Cisco Nexus, Arista and similar platform devices.
• Design and troubleshoot Layer 2 and Layer 3 networks including: VLANs, VRFs, BGP, OSPF, Static routing, PIM, IGMP, Multicast, SSM, ACLs and QoS.
• Troubleshoot packet loss, multicast issues, duplicate packets, IGMP/PIM and multicast/BGP routing.
• Monitor and optimize latency, jitter, packet loss, interface errors, congestion, and network performance.
• Work with ultra-low-latency technologies including: Cut-through switching, Layer-1 switches, FPGA-based network devices, Kernel-bypass networking, ExaNIC/Solarflare NICs, Hardware timestamping.
• Configure and troubleshoot PTP and clock synchronization infrastructure.
• Perform server and network equipment installation in exchange and third-party data centres.
• Manage rack layout, patching, cable optimization, optics, DACs, cross-connects, and inventory.
• Coordinate network changes with exchanges, telecom providers, brokers, vendors, and data-centre teams.
• Plan and execute production changes during approved maintenance windows.
• Perform pre-change validation, change implementation, post-change testing, rollback planning, and documentation.
• Maintain network diagrams, IP-address inventory, rack documentation, port mappings, circuit information, and SOPs.
• Automate repetitive operational and validation tasks using Python, Bash, Ansible, or similar tools.
• Perform root-cause analysis for network incidents and implement permanent corrective actions.
• Maintain high availability and redundancy for critical trading infrastructure.

Requirements

• The ideal candidate will have 3+ years of experience with
• Strong hands-on knowledge of TCP/IP networking, Ethernet, ARP, VLAN, STP, LACP, VRF
• Knowledge of routing protocols including static routing, BGP and OSPF.
• Experience with multicast configuration IGMPv2/IGMPv3, PIM-SM
• Knowledge of QoS, ACLs, NAT
• Knowledge of network design, network operation or network automation and Network troubleshooting
• Good understanding of TCP and UDP behaviour, Market-data multicast, Exchange connectivity, Low-latency network architecture
• Understanding of Optical networking, SFP/SFP+/QSFP optics, Single-mode and multimode fibre
• Knowledge of datacenter installation and cabling standards, DAC/AOC cabling, PTP

Skills

Required

• TCP/IP networking
• Ethernet
• ARP
• VLAN
• STP
• LACP
• VRF
• Static routing
• BGP
• OSPF
• Multicast configuration IGMPv2/IGMPv3
• PIM-SM

Preferred

• Layer-1 devices

Benefits

• Our open and casual work culture gives you the space to innovate and deliver. Our cubicle free offices , disdain for bureaucracy and insistence to hire the very best creates a melting pot for great ideas and technology innovations. Everyone on the team is approachable, there is nothing better than working with friends!
• Our perks have you covered.
• Competitive compensation
• 6 Weeks of paid vacation
• Regular after work parties
• Top of the line health insurance for family