Network Engineer (AI/HPC)

Location: Hybrid in South Korea, with 3 days in the office in Seongnam-si, Gyeonggi-do

Company

hirify.global is an end-to-end technology company building and managing AI factory platforms, HPC infrastructure, advanced memory, compute systems, and related enterprise solutions.

What you will do

• Monitor, maintain, upgrade, and manage InfiniBand and Ethernet network equipment.
• Diagnose and resolve network and server issues across large-scale data center and HPC environments.
• Run hardware diagnostics and replace failing components.
• Support Linux-based high-performance computing and AI infrastructure, monitoring network processes and data flow.
• Collaborate with software and network engineering teams on cybersecurity and network efficiency.
• Develop operational automation, maintain technical documentation, and supervise on-site component updates.

Requirements

• 6+ years of hands-on experience with enterprise-scale networks.
• In-depth knowledge of data centers, servers, and network equipment.
• Experience administering InfiniBand networks using Mellanox/NVIDIA technologies and Ethernet networks using Cumulus/SONiC.
• Strong understanding of L2 and L3 network protocols, network documentation, and diagrams.
• Ability to provide IT support, troubleshoot network errors, and communicate clearly in English.
• Availability for hybrid work in South Korea with 3 days per week in the office and participation in a weekly on-call rotation.

Nice to have

• Experience installing, monitoring, and maintaining large-scale data center networks.
• Experience optimizing low-latency and high-bandwidth networking performance.
• Knowledge of VXLAN, EVPN, BGP, OSPF, NCCL, UCX, MPI, UFM, OpenSM, or NetQ.

Culture & Benefits

• Collaborative environment focused on innovation, ownership, and servant leadership.
• Opportunities for continuous learning and exposure to advanced AI tools and technologies.
• Work with enterprise, sovereign AI, and neocloud infrastructure at global scale.
• After-hours incident response and on-call participation are part of the role.