Full-Time

Kernel Engineer

Cerebras

Cerebras

501-1,000 employees

AI accelerator hardware replacing GPUs

No salary listed

Canada + 1 more

More locations: United States

In Person

Bachelor's, Master's, PhD

Category
Software Engineering (1)
Required Skills
Python
Software Testing
Neural Networks
Machine Learning
Assembly
REST APIs
C/C++

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Requirements
  • Bachelor’s, Master’s, PhD or foreign equivalents in Computer Science, Computer Engineering, Mathematics, or related fields.
  • Understanding of hardware architecture concepts — must be comfortable learning the details of a new hardware architecture.
  • Skilled in C++ and Python programming languages.
  • Good knowledge of library and/or API development best practices.
  • Strong debugging skills and knowledge of debugging complex software stack.
Responsibilities
  • Develop design specifications for new machine learning and linear algebra kernels and mapping to the Cerebras WSE System using various parallel programming algorithms.
  • Develop and debug kernel library of highly optimized low level assembly instruction and C-like domain specific language routines to implement algorithms targeting the Cerebras hardware system.
  • Develop and debug high-performance kernel routines in low-level assembly and a custom C-like (CSL) language, implementing algorithms optimized for the Cerebras hardware system.
  • Using mathematical models and analysis to measure the software performance and inform design decisions.
  • Develop and integrate unit and system testing methodologies to verify correct functionality and performance of kernel libraries.
  • Study emerging trends in Machine Learning applications and help evolve Kernel library architecture to address computational challenges of the start-of-the-art Neural Networks.
  • Interact with chip and system architects to optimize instruction sets, microarchitecture, and IO of next generation systems.
Desired Qualifications
  • Experience in kernel development and/or testing.
  • Familiarity with parallel algorithms and distributed memory systems.
  • Experience in programming accelerators such as GPUs and FPGAs.
  • Familiarity with Machine Learning neural networks and frameworks such as TensorFlow and PyTorch.
  • Familiarity with HPC kernels and their optimization.

Cerebras Systems creates AI acceleration hardware and software. Its CS-2 system is designed to replace traditional GPU clusters for AI workloads, speeding up training and inference while simplifying the setup by eliminating the need for parallel programming, distributed training, and cluster management. The product works as a single, large processor-based accelerator with accompanying software and cloud services to run AI models efficiently, reducing latency and time to results. Compared with competitors, Cerebras differentiates itself with the largest processor in the industry and an integrated hardware-software stack that aims to streamline AI workflows rather than relying on multi-GPU clusters. The company’s goal is to help research labs, healthcare, finance, and other industries achieve faster, more cost-effective AI development and deployment by offering a turnkey high-performance AI compute solution.

Company Size

501-1,000

Company Stage

IPO

Headquarters

Sunnyvale, California

Founded

2016

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Simplify Jobs

Simplify's Take

What believers are saying

  • Q1 2026 core revenue hit $191.3 million, up 92% year over year.
  • Cerebras plans 200 MW of European data centers by end-2027.
  • CrowdStrike partnership extends Cerebras inference into cybersecurity, expanding enterprise demand.

What critics are saying

  • OpenAI drives most growth; losing it would crush 2027 backlog visibility.
  • Q2 2026 core gross margin falls to 36%-38% as rented capacity depresses returns.
  • Nvidia’s CUDA ecosystem still forces custom engineering, slowing enterprise adoption.

What makes Cerebras unique

  • Wafer-Scale Engine keeps compute and memory together, beating GPU cluster latency.
  • OpenAI signed a $20 billion, 750-megawatt inference deal in December 2025.
  • AMD and Cerebras launched disaggregated inference for Cerebras Cloud in H2 2026.

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Benefits

Professional Development Budget

Flexible Work Hours

Remote Work Options

401(k) Company Match

401(k) Retirement Plan

Mental Health Support

Wellness Program

Paid Sick Leave

Paid Holidays

Paid Vacation

Parental Leave

Family Planning Benefits

Fertility Treatment Support

Adoption Assistance

Childcare Support

Elder Care Support

Pet Insurance

Bereavement Leave

Employee Discounts

Company Social Events

Growth & Insights and Company News

Headcount

6 month growth

-2%

1 year growth

-3%

2 year growth

0%
CNBC
Jul 23rd, 2026
Cerebras stock rises 4% on AMD partnership for ultra-low latency AI systems

Cerebras shares rose about 4% on Thursday after announcing a partnership with Advanced Micro Devices for AI systems. Cerebras CEO Andrew Feldman said at AMD's San Francisco AI conference that his company's chips will be used in AMD's Helios AI systems, to be installed in Cerebras data centres later this year. The partnership focuses on "ultra-low latency" technology, with the companies claiming their system provides five times higher tokens per second per watt than competitors. Chips like Cerebras's are designed to deliver AI answers quickly whilst making trade-offs in flexibility and power. Cerebras went public in May at $185 per share. The stock has been volatile, reaching $386.34 before falling below $161 in late June. Following Thursday's gain, shares traded at $219.80.

Associated Press
Jul 22nd, 2026
CrowdStrike partners with Cerebras to power real-time AI threat detection using world's fastest inference

CrowdStrike and Cerebras Systems announced a strategic partnership combining AI-native cybersecurity with high-speed AI inference. CrowdStrike will use Cerebras's inference technology to power its Falcon AI Detection and Response platform, whilst Cerebras will deploy CrowdStrike's Falcon platform to secure its operations. The collaboration addresses AI-accelerated cyber threats that require real-time detection and response. According to Cerebras CISO Naor Penso, inference speed is critical in cybersecurity, as delays can determine whether AI prevents an attack or merely explains it afterwards. CrowdStrike's Daniel Bernard emphasised the partnership's strategic importance, noting that leading AI infrastructure companies are choosing CrowdStrike for protection. The partnership extends CrowdStrike's leadership in AI Detection and Response whilst bringing Cerebras's inference capabilities to enterprise security applications.

Yahoo Finance
Jul 19th, 2026
Flex expands Cerebras AI accelerator manufacturing in California, stock trading 26% below fair value

Flex has expanded its manufacturing partnership with Cerebras to scale production of the CS-3 AI accelerator system at its Milpitas, California facilities. The stock has declined 12% over the past seven days and 17% over 30 days, though it remains up 46% over 90 days and 125% over one year. Flex is currently trading at $119.25, significantly below analyst fair value estimates of $160.40, suggesting potential 26% upside. The company benefits from surging demand for AI and data centre infrastructure, with its data centre segment forecast to grow 35% annually. However, Flex faces concentration risk from a small client base and operates on thin margins. The company trades at a price-to-earnings ratio of 49.6x, above both peer and industry averages.

Yahoo Finance
Jul 9th, 2026
Cerebras to build 200 MW European AI data centres by 2027

Cerebras Systems announced plans to build 200 MW of AI computing capacity across Europe, with data centres planned in France, Norway, and Finland. The first facility is expected to launch by the end of 2026, with full capacity reached by the end of 2027. CEO Andrew Feldman, speaking at the RAISE Summit in Paris, said the company is already contracting additional capacity for 2027 across the Nordic region to meet growing demand from enterprises, research institutions, and governments for sovereign AI compute. Part of the planned capacity will support OpenAI workloads under the companies' existing partnership. The expansion positions Cerebras as a regional AI infrastructure provider as governments and enterprises increasingly prioritise locally hosted computing power.

Yahoo Finance
Jul 9th, 2026
Cerebras stock falls 19% as wafer-scale AI chip maker faces delivery risks despite $20B OpenAI deal

Cerebras Systems has built its business around wafer-scale AI chip design, offering an alternative to conventional GPU-based systems. The company's Wafer-Scale Engine keeps compute and memory on a single wafer to reduce latency in AI workloads. First-quarter 2026 core revenues rose 92% year-over-year to $191.3 million, with cloud and services revenues up 167% to $79.8 million. The Zacks Consensus Estimate projects revenues of $861.3 million for 2026 and $2.77 billion for 2027. Cerebras has secured a multi-year agreement with OpenAI worth over $20 billion for 750 megawatts of inference compute. It has also partnered with Amazon Web Services to deploy its systems in AWS data centres. However, the company faces concentration risk, with major customers accounting for most revenues. Near-term gross margin compression is expected as Cerebras expands infrastructure. Cerebras currently holds a Zacks Rank 3 rating.