Senior Software Engineer - HPC & Low-Level Systems jobs in United States
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Clockwork Systems, Inc. · 2 months ago

Senior Software Engineer - HPC & Low-Level Systems

positionOn Site, Palo Alto, California
timeFull-time
remoteOnsite
senioritySenior Level
date5+ years exp

Clockwork Systems is a pioneering company in AI networking founded by Stanford researchers and veteran systems engineers. They are seeking a Senior Software Engineer to lead the design and build of high performance, reliable and scalable systems, utilizing strong knowledge in systems programming and networking.

Artificial Intelligence (AI)Cloud ComputingInformation TechnologyReal TimeSoftware
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H1B Sponsor Likelynote

Responsibilities

Use your knowledge and experience to lead/contribute directly to the design and build of high performance, reliable and scalable systems

Qualification

C/C++ systems programmingLinux internalsConcurrent programmingTCP/IP stackMemory hierarchySystems designPerformance analysisLow-level debuggingOpen-source contributionsPerformance tuningMPI/RPC frameworksNCCL/CUDARDMA APIsNIC drivers

Required

At least 5 years of experience with C/C++ systems programming
Deep knowledge of Linux internals (e.g., system calls, memory management, kernel modules)
Strong foundation in concurrent programming and synchronization techniques
Strong understanding of the TCP/IP stack, socket programming, and low-latency networking (e.g., RDMA, DPDK, XDP)
Strong understanding of memory hierarchy, CPU caches, multi-core architectures, and GPUs
Strong skills in systems design, performance analysis, and low-level debugging

Preferred

Contributions to open-source HPC libraries or Linux kernel subsystems
Experience with performance tuning of large-scale HPC clusters
Experience with MPI, RPC frameworks, or distributed runtimes
Experience with NCCL, CUDA and GPU Kernels
Knowledge of RDMA APIs (e.g., libibverbs) and transport semantics
Experience with NIC drivers or NIC architecture

Benefits

Competitive compensation.
A great benefits package.
Catered lunches.

Company

Clockwork Systems, Inc.

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Clockwork is the Software-Driven Fabric company for AI and high-performance workloads.
dateFounded in 2018
location
Palo Alto, California, USA
people-size11-50 employees
web-link
https://clockwork.works

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 Stage
Total Funding
$41.58M
Key Investors
New Enterprise Associates
2025-09-10Series A· $20.57M
2022-03-16Series A· $21M

Leadership Team

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Suresh Vasudevan
Chief Executive Officer
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Balaji Prabhakar
Co-Founder (Oct 2018--present)
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Recent News

FinSMEs
Clockwork Raises $21M in Series A Funding
2022-03-17
SiliconANGLE
Clockwork raises $21M and says it’s time to solve network latency issues
2022-03-17
vcnewsdaily.com
Clockwork Raises $21M Series A
2022-03-17
Company data provided by crunchbase