PSI
psi.inc
Actively hiring
Artificial Intelligence
AI Research Labs
View 12 jobs
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Hiring now
16
+2 posted in 30 days
Backers
1
Variant
Momentum
5/100
hiring for its size
Last sign of life
this month
a posting or a news item
Backed byfrom the funds' portfolios and accelerator catalogs
Variant Similar startupsby what they do, their industry and backers
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How PSI hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
PSI scores B on the Alion truth index (A is best, E worst), measured over 6 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% have gone stale and 0% are the same role posted again. 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
Tech stack
Technologies named in job postings at PSI over the last 12 months, by layer, with the share of postings for each.
Technologies in use
54
Postings analysed
15
Stack modernity
69/100AI adopter
Languages
Python27%
SQL13%
C++7%
TypeScript7%
Frameworks & libraries
PyTorch20%
Triton13%
CUDA13%
JAX13%
Cloud & platforms
Kubernetes13%
CUDA Toolkit13%
GCP13%
vLLM13%
AI & ML
LLM7%
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Full PSI tech stack
54 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
48/100
Stable
Open positions
16
0 opened / 0 closed in 30 days
Hiring Dynamics
+100%
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
55% ▲
Leadership
18% ▼
Product
9% ▲
HR
9% ▲
Management
9% ▼
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Boston
Boston
United States
Regional office
17 open roles 11 posted in 90 days 65% engineering
hires for AI/ML, Leadership, Product
Jobs
≈ $125k – $261k per year (Estimated) • Hybrid • Full-Time • Boston
SQL
AI Agents
Time Series Forecasting
Multi-Agent Systems
DevOps
HPC
Apply
≈ $156k – $320k per year (Estimated) • Hybrid • Full-Time • 5+ years exp • Boston
Python
TypeScript
AI Agents
Structured Outputs
Apply
≈ $161k – $329k per year (Estimated) • Hybrid • Full-Time • Boston
Python
C
C++
MPI
AI/ML
vLLM
CUDA Toolkit
Reinforcement Learning
Quantization
AI Agents
SGLang
Mixture of Experts
CUDA
Triton
InfiniBand
MLIR
CUTLASS
KV Cache
DevOps
Rest API
SLURM
HPC
Apply
≈ $151k – $309k per year (Estimated) • Hybrid • Full-Time • 5+ years exp • Boston
AI Agents
Apply
≈ $168k – $344k per year (Estimated) • Hybrid • Full-Time • Boston
vLLM
CUDA Toolkit
AI Agents
SGLang
PyTorch
Ray
CUDA
Triton
DevOps
Terraform
GCP
AWS
Apply
≈ $163k – $304k per year (Estimated) • In office • Full-Time • 8+ years exp • PhD • Boston
AI Agents
Apply
≈ $181k – $337k per year (Estimated) • In office • Full-Time • 3+ years exp • Boston
Reinforcement Learning
Function Calling
AI Agents
Tool Use
Apply
≈ $165k – $338k per year (Estimated) • Hybrid • Full-Time • PhD • Boston
JAX
AI Agents
PyTorch
Machine Learning
DevOps
HPC
Apply
≈ $155k – $318k per year (Estimated) • Hybrid • Full-Time • 5+ years exp • PhD • Boston
AI Agents
DevOps
GCP
OpenTelemetry
Prometheus
CI/CD
Kubernetes
Grafana
FinOps
IAM
DNS
Apply
≈ $163k – $334k per year (Estimated) • Hybrid • Full-Time • Boston
AI Agents
Agentic Workflows
DevOps
OpenTelemetry
SLURM
Kubernetes
Argo Workflows
AWS Step Functions
HPC
Apply
≈ $155k – $317k per year (Estimated) • Hybrid • Full-Time • PhD • Boston
Python
AI Agents
Robotics
Digital Twin
Apply
≈ $165k – $338k per year (Estimated) • Hybrid • Full-Time • PhD • Boston
Reinforcement Learning
JAX
Function Calling
AI Agents
Accelerate
PyTorch
Ray
PPO
XLA
Tool Use
Machine Learning
Apply