Senior Lead Network Engineer - InfiniBand

OverviewIntegrant is seeking a Senior Lead Network & Infrastructure Engineer with 14+ years of experience to provide technical leadership in a fast-paced, complex HPC and AI environment. This is a multi-disciplinary senior role: the core is deep network engineering across Ethernet and InfiniBand fabrics, ideally complemented by hands-on experience in high-performance storage and/or Linux systems operations (SysOps). The Senior Lead owns fabric architecture and performance, acts as the highest technical escalation point, and works across engineering, platform, storage, and client teams. Adaptability, ownership, and clear communication are key to success in an environment where network performance is critical.ResponsibilitiesDevelop network configurations and architecturesOperate, maintain, and support Ethernet and InfiniBand networks in a high-performance computing (HPC) and AI environmentPerform ongoing maintenance, upgrades, and lifecycle management of network equipmentMonitor network health, performance, and capacity to ensure reliable, low-latency data flowRespond to and resolve network and server-related incidents in a timely mannerRun hardware diagnostics and coordinate replacement of failing network componentsSupport and maintain Linux-based HPC and AI platforms across a wide range of technologiesCollaborate with senior network engineers, software teams, and platform teams on network efficiency, reliability, and securityAssist with configuration, deployment, and operational support of InfiniBand and Ethernet fabricsDevelop and maintain operational documentation, including configuration examples, build guides, and best practicesSupport on-site staff during hardware updates, card replacements, and infrastructure changesStay current with advancements in data center networking, HPC interconnects, and AI infrastructure technologiesWork within the client ticketing / IT service management system (e.g., TopDesk) to manage incidents and service requests to SLABuild and maintain automation and tooling (scripting, monitoring integrations, infrastructure-as-code) to improve operational efficiencyCollaborate with software, platform, storage, and client teams on efficiency, reliability, and securityOwn the quality of operational documentation: configuration examples, build guides, runbooks, and best practicesLead design reviews and knowledge-sharingWork ConditionsParticipate in a weekly on-call rotation and respond to network and infrastructure issues after hours when required.Requirements14+ years of hands-on experience supporting enterprise or data center-scale networksExperience working in HPC, AI/ML, or performance-sensitive environmentsPractical experience administering InfiniBand (Mellanox/NVIDIA) and Ethernet (Cumulus, SONiC) networksStrong understanding of data center networking concepts, including servers, storage, and high-speed interconnectsSolid knowledge of Layer 2 and Layer 3 networking, including routing and switching fundamentalsInstalling, monitoring, and maintaining very large-scale data center networksLow-latency, high-bandwidth fabric support and performance tuning for distributed compute and GPU workloadsVXLAN/EVPN architectures and routing protocols such as BGP and OSPFExposure to communication libraries such as NCCL, UCX, and MPINetwork management and monitoring tools: UFM, OpenSM, NetQ, or similarAbility to troubleshoot and resolve network issues in complex, distributed environmentsStrong documentation and communication skillsProven ability to work effectively as part of a team and provide operational supportPreferred (Multi-Skill) QualificationsStorage: Hands-on experience with high-performance / parallel storage environments (e.g., Lustre, GPFS/Spectrum Scale, BeeGFS, Ceph, NVMe-oF), including storage networking and I/O performance troubleshootingSysOps / Linux systems: Production Linux systems administration at scale — provisioning, configuration management (Ansible/Salt), kernel/network stack tuning, schedulers (Slurm), containerizationBenefitsSalary paid in USDSix-month career advancing opportunitiesSupportive and friendly work environmentPremium medical insurance [employee +family]English language development coursesInterest-free loans paid over 2.5 yearsTechnical development coursesEmployment referral programPremium location in MaadiSocial insurance