Full-Time

Member of Technical Staff

GPU Performance Engineer

Reka

Reka

51-200 employees

Develops and deploys large AI models

No salary listed

H1B Sponsorship Available

Remote in USA + 1 more

More locations: Remote in UK

Remote

Category
Software Engineering (2)
,
Requirements
  • Fluency in Python and PyTorch (or other frameworks).
  • Proven experience implementing and training large deep learning models.
  • Experience writing and debugging low-level GPU code (CUDA, C++).
  • Experience scaling up GPU jobs using large-scale compute clusters (e.g., Slurm or Kubernetes).
  • Demonstrated ability to analyze and optimize the performance of GPU-accelerated workloads, including profiling, identifying bottlenecks, and implementing performance tuning techniques.
Responsibilities
  • Design and implement improvements to training infrastructure and directly contribute to technical decisions that optimize performance of models.
  • Work on post-training processes, including reinforcement learning and fine-tuning.
  • Contribute to improving the efficiency and scalability of model serving infrastructure.

Reka.ai builds and deploys AI solutions using large deep learning models, handling the end-to-end process from data prep and architecture design to training, evaluation, and deployment, with a focus on data synthesis. Their offerings include bespoke models and ongoing access or support for businesses via project-based work or subscriptions. They differentiate themselves through a team of researchers and former DeepMind staff delivering an integrated end-to-end pipeline along with advisory input from industry and academia. Their goal is to make the benefits of large AI models globally accessible by providing practical, deployed solutions and ongoing support.

Company Size

51-200

Company Stage

Late Stage VC

Total Funding

$168M

Headquarters

Sunnyvale, California

Founded

2022

Simplify Jobs

Simplify's Take

What believers are saying

  • Nvidia and Snowflake invested $110M in July 2025, valuing Reka over $1B.
  • Reka Core competes with GPT-4V on MMMU benchmark per independent tests.
  • Partnerships with Shutterstock and Turing expand enterprise video AI adoption.

What critics are saying

  • Snowflake's $1B acquisition talks collapsed, stranding Reka without buyer.
  • Nvidia shifts funding to xAI, cutting Reka's compute access within 12 months.
  • Meta's Llama-4 open-sources commoditize Reka Flash, eroding paid deployments.

What makes Reka unique

  • Reka builds multimodal models like Reka Flash trained from scratch with proprietary algorithms.
  • Nexus platform creates AI workers automating workflows across text, images, videos, audio.
  • Reka Vision enables natural language searches on surveillance video for security.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Paid Vacation

Remote Work Options

Growth & Insights and Company News

Headcount

6 month growth

1%

1 year growth

5%

2 year growth

3%
WebsiteRating
Jul 23rd, 2025
Major AI Funding Boost as Reka AI and Delve Technologies Shine

Reka AI, established in 2022, has successfully raised $110 million in funding from major players Nvidia and Snowflake.

SiliconANGLE Media
Jul 22nd, 2025
Multimodal AI startup Reka AI raises $110M at $1B valuation

Multimodal large language model research startup Reka AI Inc. today announced it has raised $110 million in fresh funding backed by Nvidia Corp. and Snowflake Inc.

Fidelity Investments
Jul 22nd, 2025
Nvidia, Snowflake Invest $110M in Reka

Nvidia and Snowflake participated in a $110 million funding round for AI firm Reka, boosting its valuation to over $1 billion from $300 million earlier in 2023. The investment will enhance Reka's technical development and expand its multimodal platforms.

StockTwits
Jul 22nd, 2025
Nvidia, Snowflake Invest $110M in Reka AI

Nvidia and Snowflake have invested $110 million in Reka AI, a three-year-old AI startup, boosting its valuation to over $1 billion and making it a unicorn. Reka AI focuses on developing large language models more efficiently than competitors.

TechStartups.com
Apr 7th, 2025
From .Ai To .Com: The Quiet Domain Rebrand Sweeping Startup Ecosystem

When generative AI took off in 2022 following the popularity of ChatGPT, launching a startup on a .ai domain felt like the obvious move. It signaled your company was part of the next wave of innovation.¬†It instantly signaled to investors, journalists, and users that you were building in AI.Now, a shift is happening. Some of the most promising startups in AI are quietly moving away from their .ai domains and switching to .com. It‚Äôs not about trend-chasing‚Äîit‚Äôs about positioning.This isn’t a flood, but it‚Äôs enough to raise eyebrows. And it says something about how branding, trust, and long-term ambition play a bigger role in how startups choose to present themselves.Why Startups Went With .AI DomainsIn the early days, .ai domains were easy to get and made a lot of sense. Short .coms are hard to come by and often expensive