Persimmons, Inc.
Senior Software Engineer, Communication Libraries
Persimmons, Inc., San Jose, California, United States, 95199
Senior Software Engineer, Communication Libraries
3 weeks ago Be among the first 25 applicants
Who we are : Persimmons is building the infrastructure that will power the next decade of AI. Founded in 2023 by veteran technologists from the worlds of semiconductors, AI systems, and software innovation, we’re on a mission to enable smarter devices, more sustainable data centers, and entirely new applications the world hasn’t imagined yet.
Why join us : We’re growing fast and looking for bold thinkers, builders, and curious problem‑solvers who want to push the limits of AI hardware and software. If you’re ready to join a world‑class team and play a critical role in making a global impact — we want to talk to you.
What you’ll do :
Design the communication protocols for device discovery, routing and efficient dataflow for AI workloads running across distributed hardware
Develop scalable communication software architected to efficiently coordinate across thousands of compute nodes in large‑scale AI clusters
Define and implement low level communication primitives for inter device data transfer using advanced high speed interconnect protocols
Implement high speed data transfers using DMA and efficient memory management.
Collaborate with cross‑functional teams to design, test, and optimize our hardware and software solutions
Analyze and improve the efficiency, scalability, and performance of our systems
Stay abreast of industry trends and advancements to ensure our solutions remain competitive and innovative
Provide technical leadership across the software team, mentoring engineers, and help scale the team as the company grows
Requirements :
7+ years of software development experience in developing high performance software for HPC systems, distributed systems or hardware accelerators
Deep knowledge of collective communication algorithms and primitives (NCCL, ROCm, MPI)
Knowledge of hardware architectures and their optimization implications, including memory hierarchies, high speed interconnects, DMA engines, and multi‑core parallel processing
Strong C/C++ skills
BS/MS/PhD degree in Computer Science, Computer Engineering, or related field (or equivalent experience)
Strong interpersonal, verbal and written communication skills
Capability to achieve objectives under tight deadlines
Experience executing tasks while managing competing priorities
Deep understanding of technology and passion for what you do
Strong teamwork, specifically a proven ability to effectively guide and influence within a dynamic matrix environment
Excellent problem‑solving skills and the ability to work in a dynamic, fast‑paced environment
Benefits :
Competitive salary and benefits package
Flexible PTO
401(k)
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Who we are : Persimmons is building the infrastructure that will power the next decade of AI. Founded in 2023 by veteran technologists from the worlds of semiconductors, AI systems, and software innovation, we’re on a mission to enable smarter devices, more sustainable data centers, and entirely new applications the world hasn’t imagined yet.
Why join us : We’re growing fast and looking for bold thinkers, builders, and curious problem‑solvers who want to push the limits of AI hardware and software. If you’re ready to join a world‑class team and play a critical role in making a global impact — we want to talk to you.
What you’ll do :
Design the communication protocols for device discovery, routing and efficient dataflow for AI workloads running across distributed hardware
Develop scalable communication software architected to efficiently coordinate across thousands of compute nodes in large‑scale AI clusters
Define and implement low level communication primitives for inter device data transfer using advanced high speed interconnect protocols
Implement high speed data transfers using DMA and efficient memory management.
Collaborate with cross‑functional teams to design, test, and optimize our hardware and software solutions
Analyze and improve the efficiency, scalability, and performance of our systems
Stay abreast of industry trends and advancements to ensure our solutions remain competitive and innovative
Provide technical leadership across the software team, mentoring engineers, and help scale the team as the company grows
Requirements :
7+ years of software development experience in developing high performance software for HPC systems, distributed systems or hardware accelerators
Deep knowledge of collective communication algorithms and primitives (NCCL, ROCm, MPI)
Knowledge of hardware architectures and their optimization implications, including memory hierarchies, high speed interconnects, DMA engines, and multi‑core parallel processing
Strong C/C++ skills
BS/MS/PhD degree in Computer Science, Computer Engineering, or related field (or equivalent experience)
Strong interpersonal, verbal and written communication skills
Capability to achieve objectives under tight deadlines
Experience executing tasks while managing competing priorities
Deep understanding of technology and passion for what you do
Strong teamwork, specifically a proven ability to effectively guide and influence within a dynamic matrix environment
Excellent problem‑solving skills and the ability to work in a dynamic, fast‑paced environment
Benefits :
Competitive salary and benefits package
Flexible PTO
401(k)
#J-18808-Ljbffr