Inferact
inferact.ai
Actively hiring
AI Development Tools
AI Compute & Inference
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$150M
1 round on record
Latest round
$150M
Venture round · Jan 2026 · 9 mo ago
Team
51-200
employees, estimated range
Hiring now
32
+7 posted in 30 days
Backers
4
Andreessen Horowitz, Redpoint Ventures
The money's age
Fresh money
9 months since the last round · and hiring
Momentum
44/100
hiring for its size, in the news, fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jan 22
Raised a round Venture round $150M · TechCrunch
Jan 2026
Website went live first capture in the Wayback Machine
Tractionpublic signals, read monthly
Web presence
top 0.11%
of 133.2M domains by links, Common Crawl
Hacker News stories
2
best: 5 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Jan 2026 | $150M | — | TechCrunch |
Backed byfrom the funds' portfolios and accelerator catalogs
Andreessen Horowitz 
Redpoint Ventures 
Sequoia Capital 
Striker Venture Partners Investors in similar startupsfunds that back the companies most like this one
backs Modular
Similar startupsby what they do, their industry and backers
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How Inferact hires
Truth index
A 85/100
Median time to fill
28 days
Ghost roles
0%
Stale roles
60%
Reposted roles
0%
Inferact scores A on the Alion truth index (A is best, E worst), measured over 25 open roles re-checked against its own hiring board: 0% look like ghost listings, 60% have gone stale and 0% are the same role posted again. Its roles close in a median of 28 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
News
SemiAnalysis (@SemiAnalysis_) on X
The @vllm_project maintainers at @inferact are some of the most cracked engineers in the world. They're building one of the inference engines that powers much of the world's intelligence-and doing so with remarkable dedication, kindness, and hard work.
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Report
DeepSeek V4 in vLLM: Efficient Long-context Attention
A first-principles walkthrough of DeepSeek V4's long-context attention, and how we implemented it in vLLM.
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Report
Disaggregated Serving for Hybrid SSM Models in vLLM
Hybrid architectures that interleave Mamba-style SSM layers with standard full-attention (FA) layers - such as NVIDIA Nemotron-H - are gaining traction as a way
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Report
Inferact Launches With $150 Million Funding At $800M Valuation To Commercialize vLLM As Inference Demand Surges
Inferact, a new AI infrastructure startup founded by creators and core maintainers of the open-source vLLM inference engine, has launched with $150 million in seed funding at an $800 million valuation, positioning the company to push performance gains in
Read more
Report
Inferact launches with $150M in funding to commercialize vLLM
Inferact launches with $150M in funding to commercialize vLLM - SiliconANGLE
Read more
Report
Inference startup Inferact lands $150M to commercialize vLLM
The seed round values the newly formed startup at $800 million.
Read more
Report
Tech stack
Technologies named in job postings at Inferact over the last 12 months, by layer, with the share of postings for each.
Technologies in use
73
Postings analysed
37
Stack modernity
65/100AI adopter
Languages
Python38%
Rust19%
C++16%
Bash8%
Frameworks & libraries
SGLang35%
PyTorch35%
TensorRT-LLM30%
Triton22%
Cloud & platforms
vLLM100%
Kubernetes27%
TGI14%
AWS14%
AI & ML
LLM35%
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Full Inferact tech stack
73 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$400k
Typical range
$170k – $400k
Open positions
21
20
Jobs
Staff
100%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Staff | 20 | $400k | $313k – $400k |
Highest paying role
Member of Technical Staff, Performance and Scale
$400k
Normalized to USD per year
All salaries at Inferact
By role, level and city, against the market · 21 jobs with pay
Growth
Hiring Momentum
42/100
Stable
Open positions
32
3 opened / 1 closed in 30 days
Median time-to-fill
28 days
faster than 46% of the market
ATS activity
Every ~5 hours
10/27/2026
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
AI/ML
27% ▼
Marketing
14% ▲
Leadership
9%
Design
9%
Finance
9% ▲
Sales
9% ▲
Activity Timeline
Added SLI/SLO/SLA to stack
Oct 2026
Added SQL to stack
Oct 2026
Added TypeScript to stack
Oct 2026
Added CVE to stack
Oct 2026
Added Marketo to stack
Sep 2026
Added HubSpot to stack
Sep 2026
Added Reddit to stack
Sep 2026
Added LinkedIn to stack
Sep 2026
Added Instagram to stack
Sep 2026
Added Machine Learning to stack
Sep 2026
Added Windows to stack
Sep 2026
Added VPN to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
2
Busiest office
San Francisco
Loading the map
Headquarters
Builds here
Office with open vacancies
Tap a pin for the office
San Francisco
United States
HQ
22 open roles 19 posted in 90 days 45% engineering 50-200 est. staff $382k Avg Salary
hires for AI/ML, Marketing, Finance
Singapore
Singapore
Engineering / R&D
7 open roles 1 posted in 90 days 100% engineering 10-50 est. staff $325k Avg Salary
hires for AI/ML
Jobs
$200k – $400k per year · In office · Full-Time · 2+ years exp · PhD · San Francisco
vLLM
SGLang
PyTorch
CUDA
Triton
DevOps
Kubernetes
Apply
$200k – $400k per year · In office · Full-Time · San Francisco
vLLM
Cybersecurity
CVE
Apply
$200k – $400k per year · In office · Full-Time · San Francisco
Python
Go
TypeScript
Ray Serve
vLLM
SGLang
BentoML
TensorRT
TensorRT-LLM
TGI
LLM
Ray
CUDA
ROCm
Machine Learning
DevOps
Kubernetes
Apply
≈ $157k – $377k per year (Estimated) · In office · Full-Time · San Francisco
vLLM
Design
Figma
Webflow
Apply
$156k – $312k per year · In office · Full-Time · Singapore
Python
Bash
vLLM
RunPod
CoreWeave
TPU
NCCL
InfiniBand
NVLink
DevOps
Terraform
Ansible
Helm
SLURM
AWS
Kubernetes
Platform Engineering
AWS Lambda
HPC
Linux
Apply
$200k – $400k per year · In office · Full-Time · San Francisco
Python
Bash
vLLM
DevOps
Terraform
Docker
Kubernetes
SLI/SLO/SLA
Linux
Apply
≈ $225k – $500k per year (Estimated) · In office · Internship · Bachelor's Degree · San Francisco
Python
Go
Rust
C++
vLLM
Quantization
JAX
Multimodal AI
SGLang
TensorRT
TensorRT-LLM
PyTorch
Ray
Mixture of Experts
CUDA
Triton
TPU
NCCL
InfiniBand
ROCm
MLIR
XLA
CUTLASS
KV Cache
DevOps
Terraform
Helm
SLURM
Kubernetes
Apply
≈ $232k – $461k per year (Estimated) · Hybrid · Full-Time
Python
vLLM
Multimodal AI
Diffusion Models
SGLang
TensorRT
LLaMA-Factory
TensorRT-LLM
TGI
Unsloth
PyTorch
LLM
Mixture of Experts
KV Cache
Apply
$200k – $400k per year · Remote (United States, PT hours) · Full-Time
Python
Rust
vLLM
Ray
DevOps
Terraform
GCP
Helm
SLURM
Azure
AWS
Kubernetes
Apply
$200k – $400k per year · In office · Full-Time · San Francisco
Python
Bash
vLLM
RunPod
CoreWeave
TPU
NCCL
InfiniBand
NVLink
DevOps
Terraform
Ansible
Helm
SLURM
AWS
Kubernetes
Platform Engineering
AWS Lambda
HPC
Linux
Apply
$200k – $400k per year · In office · Full-Time · San Francisco
vLLM
Quantization
SGLang
TensorRT
TensorRT-LLM
PyTorch
LLM
Triton
ROCm
MLIR
KV Cache
Machine Learning
Apply
$156k – $312k per year · In office · Full-Time · Singapore
vLLM
Quantization
JAX
SGLang
TensorRT
TensorRT-LLM
PyTorch
LLM
TPU
MLIR
XLA
KV Cache
Machine Learning
Apply
Financials
Total raised
$150M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2026 | $150M | Details |