DensityAI
High-density AI infrastructure for data centers
Compiler Engineer - LLVM Backend
+ Equity grant
About the job
- Exceptional ability in LLVM backend internals, including TableGen, instruction selection, scheduling, and register allocation.
- At least 5 years of compiler engineering experience with hands-on LLVM target development.
- Strong understanding of computer architecture, instruction set architecture design, and compiler-hardware co-design.
- Ability to debug correctness and performance regressions across the full compilation flow.
- Work authorization is required at the start of employment.
- Own LLVM backend development for a custom accelerator instruction set architecture, including instruction selection, register allocation, scheduling, and linker support across scalar, vector, and floating-point pipelines.
- Work with chip-design and software teams to drive the AI accelerator program from first silicon through scale-out.
- Use and develop artificial-intelligence-assisted tool flows to accelerate compiler development and performance tuning.
- Experience with custom instruction-set-architecture bring-up, MLIR, GPU or accelerator backends, or linker and loader work.
About the company
DensityAI designs high-density, full-stack AI infrastructure for data centers, with custom chips, hardware, and software tightly integrated. Its products are aimed at automotive and robotics applications, delivering end-to-end AI workflows from perception and decision-making to control. The platform leverages hardware-software co-design to achieve higher performance, better power efficiency, and lower costs, addressing scalability and sustainability in AI computing. Unlike typical vendors, DensityAI combines a strong ex-Tesla leadership with a team of Dojo alumni and other industry veterans to offer a plug-and-play solution for OEMs and operators, simplifying the deployment of AI infrastructure. The company plans to raise substantial funding to speed development, validate deployments in its core markets, and broaden into general AI data center use and a comprehensive developer ecosystem.
Company Size
51-200
Company Stage
Acquired
Total Funding
N/A
Headquarters
Mountain View, California
Founded
2024
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Simplify's Take
What believers are saying
- Andreessen Horowitz is reportedly leading hundreds of millions at a $10 billion valuation.
- AWS signed a conditional purchase agreement for chips meeting performance targets.
- Tesla senior hardware executive Shishuang Sun joined DensityAI in July 2026.
What critics are saying
- DensityAI still lacks a shipped chip; the AWS contract stays conditional on benchmarks.
- 3D DRAM packaging faces heat and yield problems that kill schedules.
- A failed round or benchmark miss destroys the $10 billion valuation overnight.
What makes DensityAI unique
- Ganesh Venkataramanan, Bill Chang, and Ben Floering bring Tesla Dojo system experience.
- DensityAI combines custom chips, hardware, and software for AI data centers.
- Its 3D DRAM stacking bet targets bandwidth, capacity, and energy efficiency.
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Benefits
Health Insurance
Dental Insurance
Vision Insurance
Paid Vacation
Company Equity
Growth & Insights and Company News
6 month growth
↑ 82%1 year growth
↑ 58%2 year growth
↑ 58%AI chip startup DensityAI has raised hundreds of millions of dollars in a funding round valuing the company at $10 billion, according to The Information. Andreessen Horowitz is reportedly in talks to lead the round. The company was founded in 2025 by former Tesla Dojo chip program leaders Ganesh Venkataramanan, Bill Chang, and Ben Floering. Around 20 employees left Tesla for DensityAI after Elon Musk dissolved the Dojo team in August 2025. DensityAI plans to develop data centre chips using 3D DRAM stacking to improve speed and energy efficiency. The report suggests the startup has secured a conditional purchase agreement with AWS, though Amazon declined to comment. Previous investors include Dolby Family Ventures, South Park Commons, and Firestreak Ventures.
DensityAI nears $10B valuation with hundreds of millions in funding and AWS deal. The Tesla Dojo spinoff lands Andreessen Horowitz backing and a conditional chip purchase agreement with Amazon Web Services 5 hours ago Sponsored: Vera - AI-powered prediction market intelligence, built for serious analysts Explore Vera A startup that barely existed 18 months ago is now worth as much as some publicly traded semiconductor companies. DensityAI, the AI chip venture founded by former Tesla Dojo engineers, is closing a funding round that values the company at roughly $10 billion, with Andreessen Horowitz leading the deal. The round is expected to bring in hundreds of millions of dollars in fresh capital. More importantly, DensityAI has locked in a conditional procurement agreement with Amazon Web Services, meaning AWS will buy DensityAI's chips if they hit certain performance benchmarks. From Tesla's basement project to a $10B valuation. DensityAI was founded in 2025 by Ganesh Venkataramanan, who previously led Tesla's Dojo supercomputer initiative. He brought roughly 20 engineers from the Dojo team with him. The company's trajectory since then has been aggressive. DensityAI closed a seed round in September 2024, followed by an early-stage venture round in September 2025. Now, roughly a year later, it's commanding a valuation that puts it in the upper echelon of private AI companies globally. AI, tech, and the markets they move - in one daily briefing. Daily. Free. Join 34,000+ readers across crypto, finance, and policy. The AWS agreement and what it actually means. The conditional purchase agreement with AWS is the centerpiece of DensityAI's pitch to investors. Under the deal, AWS commits to buying DensityAI's custom AI chips, but only if those chips meet predefined performance standards. AWS has been diversifying its chip supply chain for years, developing its own Graviton and Trainium processors while also maintaining its relationship with Nvidia. Adding DensityAI to the mix would give Amazon another option for specialized AI workloads, reducing dependence on any single supplier. A crowded market with very high stakes. What separates DensityAI, at least on paper, is its focus on building integrated solutions spanning chips, hardware, and software for data centers. The company targets sectors including automotive, robotics, and broader AI applications, areas where the Dojo team's experience with Tesla's compute-intensive workloads could provide a genuine edge. Disclosure: This article was edited by Diego Almada Lopez. For more information on how Crypto Briefing create and review content, see its Editorial Policy.
Tesla senior chip engineer joins DensityAI as in-house plans face more strain. * August 25, 2026 * Posted by jeff Tesla's senior director of AI hardware design, Shishuang Sun, joined DensityAI in July 2026, taking charge of packaging and system hardware development. The move came as Tesla continued to pursue custom AI and robotics chips amid the loss of another senior hardware leader.
Tesla has closed its mysterious acquisition of an AI hardware company for $1.95 billion in stock and equity awards, according to the company's Q2 2026 10-Q filing. The deal was first disclosed in April but Tesla has still not named the target company. Of the total amount, only $222 million was allocated to actual assets — a patent and related technology. The remaining $1.73 billion is contingent on service conditions and performance milestones tied to successful technology deployment. Notably, Tesla recorded no stock-based compensation expense in Q2, stating the performance conditions were "improbable" to be achieved. This assessment raises questions about a deal Tesla valued at nearly $2 billion. The acquisition fits Tesla's broader 2026 investment strategy focused on AI compute and chip development. However, the lack of transparency around the deal has drawn criticism, as shareholders face dilution from hundreds of millions of newly issued shares without knowing the acquisition target or its strategic rationale.