Full-Time

Accelerator Microarchitecture Performance Modeling Engineer

Posted on 6/27/2024

Rivos

Rivos

201-500 employees

Custom RISC-V server hardware for enterprises

No salary listed

Austin, TX, USA

Remote

Category
Software Engineering (1)
Requirements
  • In-depth knowledge of CPU/GPU Computer Architecture and Microarchitecture.
  • Excellent coding skills in C/C++ languages
  • Strong understanding of workloads and benchmarks in the Machine Learning space
  • Solid appreciation for the basics of SIMT processing, cache and memory hierarchies
  • Knowledge of performance modeling concepts - analytical, functional and cycle-accurate modelingKnowledge of performance improvement concepts - bottleneck analysis, latency hiding, speculative execution, shared resource arbitration, scheduling, buffer sizing, replacement policies
  • Ability to work well in a team, take ownership of tasks, embrace aggressive schedules, be self motivated to learn, seek help, think clearly and communicate effectively
Responsibilities
  • Performance modeling - develop functional and timing simulators in C++ modeling the programmable processing cores in a Data Parallel Accelerator.
  • Performance analysis - configure and use the simulator to explore the architectural and microarchitectural design space.
  • Design Space Exploration - influence the design choices based on experiments and studies
  • Performance testing - develop tests to evaluate quality of model and RTL design
  • Performance debug - identify and fix performance bottlenecks in tests/workloads/simulator
  • Performance correlation - identify correct performance targets for tests/workloads and ensure that the RTL design meets that target
  • Workload analysis - develop a deep understanding of the characteristics of workloads in the target market - machine learning, data analytics, graph analytics

Rivos designs and manufactures custom high-performance server hardware based on the RISC-V open ISA for data centers and enterprise IT. Its products are purpose-built to deliver strong compute performance, energy efficiency, and security for demanding workloads, through hardware tailored to specific tasks rather than off-the-shelf designs. The company differentiates itself by leveraging the flexibility and cost advantages of RISC-V to create bespoke servers that meet enterprise needs, offering close collaboration and support to ensure seamless integration in large-scale infrastructure. Its goal is to serve cloud providers, data centers, and other large IT operators with tailored, dependable server solutions that optimize performance and total cost of ownership.

Company Size

201-500

Company Stage

Series A

Total Funding

$250M

Headquarters

Santa Clara, California

Founded

2021

Simplify Jobs

Simplify's Take

What believers are saying

  • Meta's $2B acquisition in September 2025 validates RISC-V for AI chips.
  • Rivos raised $250M in April 2024 to scale AI inference GPUs.
  • Canonical partnership enables Ubuntu on Rivos RISC-V data centers.

What critics are saying

  • Meta redirects Rivos roadmap to internal AI by 2026, halting enterprise sales.
  • Nvidia's 20-30% H100 price cuts in 2025 lock in CUDA ecosystems.
  • RISC-V fragmentation demands proprietary optimizations, blocking portability.

What makes Rivos unique

  • Rivos builds high-performance RISC-V SoCs with proprietary GPGPU accelerators.
  • Rivos delivers CUDA-compatible software stacks for seamless AI transitions.
  • Rivos taped out 3.1 GHz RISC-V processor for data center efficiency.

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Benefits

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

50%

1 year growth

53%

2 year growth

51%
Data Centre Dynamics Ltd
Oct 3rd, 2025
Meta acquires RISC-V chip startup Rivos – report

Terms of the deal have not been disclosed

FinancialContent
Sep 30th, 2025
Meta Acquires Rivos for AI Chips

Meta Platforms (NASDAQ: META) has acquired chip startup Rivos to enhance its AI capabilities and reduce reliance on external suppliers. This move, announced on September 30, 2025, aims to integrate Rivos's RISC-V-based processors and GPUs, accelerating Meta's custom AI chip development. The acquisition reflects a broader trend of tech giants pursuing vertical integration in AI hardware, potentially impacting companies like Nvidia. Rivos was previously seeking funding at a $2 billion valuation.

TS2.tech
Sep 30th, 2025
Meta Acquires Rivos for $2B AI Chips

Meta is acquiring chip startup Rivos Inc. for around $2 billion to enhance its AI hardware capabilities and reduce reliance on Nvidia GPUs. Rivos, known for its RISC-V–based AI GPU, raised $250 million in April 2024. This acquisition aligns with Meta's strategy to develop in-house AI chips by 2026, aiming to cut AI compute costs. The move is part of a broader trend among tech giants to control AI chip development, challenging Nvidia's market dominance.

BISinfotech
Aug 18th, 2025
Rivos Targets $500M Funding to Rival NVIDIA GPUs

U.S.-based semiconductor startup Rivos is aiming to raise between $400 million and $500 million to develop advanced graphics processing units (GPUs) designed to compete directly with NVIDIA in the fast-growing artificial intelligence (AI) chip market.

SiliconANGLE Media
Aug 15th, 2025
AI chip startup Rivos reportedly seeking up to $500M in funding

Santa Clara, California-based Rivos is reportedly developing a chip optimized for artificial intelligence inference.

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