Clockwork Systems, Inc. · 4 days ago
Senior HPC Developer - RDMA Networking
Palo Alto, CA
Full-time
Onsite
Senior Level
$150K/yr - $230K/yr
5+ years expClockwork Systems, Inc. is pioneering a software-driven approach to AI fabrics, enhancing GPU cluster utilization. They are seeking a Senior HPC Developer to work on GPU and high-performance networking problems, focusing on building and optimizing systems while collaborating with a small engineering team.
Artificial Intelligence (AI)Cloud ComputingInformation TechnologyReal TimeSoftware
Responsibilities
Build and optimize high-performance GPU and networking subsystems
Work with collective communication libraries and algorithms for multi-node, multi-GPU workloads
Debug performance issues across kernel, driver, GPU, and network layers
Develop and improve GPU-aware networking solutions
Profile, analyze, and tune system performance using low-level tooling
Collaborate closely with a small engineering team and take ownership of core systems
Qualification
Required
5+ years of experience in systems, HPC, or performance-critical software development
Strong proficiency in low-level C/C++
Solid understanding of RDMA networking, including InfiniBand, RoCE, and IB Verbs
Experience working with multi-node, multi-GPU workloads
Familiarity with collective communication libraries and communication algorithms
Ability and willingness to debug complex issues across hardware and software boundaries
Curiosity and eagerness to learn in a fast-moving startup environment
Preferred
Experience with congestion control mechanisms such as DCQCN
Exposure to GPU-aware networking or advanced communication optimizations
Experience with performance profiling, tracing, or observability tooling
Background in AI infrastructure, HPC clusters, or distributed systems
Benefits
Competitive compensation.
A great benefits package.
Catered lunch.
Company
Clockwork Systems, Inc.
Clockwork is the Software-Driven Fabric company for AI and high-performance workloads.
11-50 employees
H1B Sponsorship
Clockwork Systems, Inc. has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (8)
2023 (5)
2022 (1)
Funding
Current Stage
Early StageTotal Funding
$41.58MKey Investors
New Enterprise Associates
2025-09-10Series A· $20.57M
2022-03-16Series A· $21M
Leadership Team
Suresh Vasudevan
Chief Executive Officer
Balaji Prabhakar
Co-Founder (Oct 2018--present)
Recent News
2022-03-17
2022-03-17
vcnewsdaily.com
2022-03-17
Company data provided by crunchbase