Senior RDMA Networking & Storage Engineer

Clockwork.io; California (MO); On-site; USD 150,000 - 230,000; Full time

Benefits offered by this job

Challenging projects

Friendly workplace

Competitive compensation

Great benefits

Catered lunch

Job summary

Clockwork Systems seeks a Senior Systems Engineer – RDMA Networking & Storage to design and optimize high-performance infrastructure for AI and HPC workloads. You will work across RDMA networking and storage data paths, including RoCE, NVMe-over-Fabrics, and programmable switches, near hardware and software boundaries.

You will own critical components, debug complex latency/throughput issues, and help build reliable systems where performance and coordination matter.

Qualifications

• 5+ years of experience in systems, networking, storage, HPC, or performance-critical software.
• Strong proficiency in low-level C/C++.
• Deep understanding of RDMA networking, RoCE, and RDMA Verbs.
• Familiarity with DMA, memory registration, queue pairs, completion queues, interrupts/polling, and zero-copy I/O.
• Experience debugging low-level Linux networking, storage, or driver behavior.
• Experience profiling latency- and throughput-sensitive systems.
• Ability to reason across hardware and software boundaries and debug complex system-level problems.
• Strong ownership and comfort working in a small, fast-moving engineering team.

Responsibilities

• Design, build, and optimize high-performance RDMA networking and storage systems.
• Work with RoCE, RDMA Verbs, and NVMe-over-Fabrics.
• Develop systems that leverage DPUs, SmartNICs, and programmable switches.
• Develop and optimize software using queue pairs, completion queues, memory registration, zero-copy I/O, and other RDMA primitives.
• Debug performance and reliability issues across applications, Linux kernel, drivers, NICs, DPUs, switches, and storage systems.
• Analyze network and storage behavior including latency, throughput, queueing, congestion, packet loss, retransmissions, and flow control.
• Develop mechanisms to improve network performance and congestion behavior in high-bandwidth RDMA fabrics.
• Build tooling and instrumentation to understand end-to-end performance across compute, network, and storage.
• Profile and tune systems across PCIe, NUMA, CPU, memory, NIC, DPU, network, and storage boundaries.
• Own major components from design through implementation, performance validation, and deployment.

Skills

5+ years exp

C/C++

RDMA networking

RoCE & Verbs

Linux networking

DMA concepts

Zero-copy I/O

Latency optimization

Job description

Clockwork Systems seeks a Senior Systems Engineer – RDMA Networking & Storage to design and optimize high-performance infrastructure for AI and HPC workloads. You will work across RDMA networking and storage data paths, including RoCE, NVMe-over-Fabrics, and programmable switches, near hardware and software boundaries.

You will own critical components, debug complex latency/throughput issues, and help build reliable systems where performance and coordination matter.