NeoSigma
neosigma.ai
Actively hiring
AI Development Tools
AI Agents
View 8 jobs
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Hiring now
8
open roles
Momentum
0/100
no fresh signals
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
Mar 2026
Website went live first capture in the Wayback Machine
Tractionpublic signals, read monthly
Web presence
top 22%
of 133.2M domains by links, Common Crawl
Hacker News stories
2
best: 4 points
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How NeoSigma hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
NeoSigma scores B on the Alion truth index (A is best, E worst), measured over 8 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
Overview
NeoSigma is an artificial intelligence infrastructure company focused on self-improving agentic systems. Built by research and engineering leaders formerly at OpenAI, Sierra, and Google, the platform provides an automated harness and runtime evaluation layer that enables AI agents to continuously learn from production failures.
News
Workspaces: How We Built Sandbox Infrastructure for Autonomous Agents
How we built the workspaces where AI agents execute, explore, and learn from experience. A deep dive into the architecture behind realistic, reproducible, fast, and isolated agent execution.
Read more
Report
Self-Improving Agentic Systems
At NeoSigma, we are building towards the future of self-improving AI systems. We are building the infrastructure to support the feedback loop in real-world systems, helping teams capture failures, convert them into structured evaluation signals, and use t
Read more
Report
Tech stack
Technologies named in job postings at NeoSigma over the last 12 months, by layer, with the share of postings for each.
Technologies in use
15
Postings analysed
8
Stack modernity
84/100AI adopter
Languages
JavaScript
Python
TypeScript
Cloud & platforms
OpenAI
GCP
Kubernetes
AI & ML
LLM
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Full NeoSigma tech stack
15 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
58/100
Growing
Open positions
8
0 opened / 0 closed in 30 days
ATS activity
Every ~4 hours
Today
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.
Hardware
100% ▼
Activity Timeline
Added Machine Learning to stack
Sep 2026
Added Agentic Workflows to stack
Sep 2026
Added X (Twitter) to stack
Sep 2026
Added Python to stack
Sep 2026
Added Least Privilege to stack
Aug 2026
Added IAM to stack
Aug 2026
Added Model Context Protocol to stack
Aug 2026
Added AI Agents to stack
Aug 2026
Added Post-training to stack
Aug 2026
Added OpenAI to stack
Aug 2026
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
2
Busiest office
San Francisco
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Headquarters
Builds here
Office with open vacancies
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San Francisco
United States
HQ
5 open roles 1 posted in 90 days 100% engineering
hires for AI/ML, Backend, DevOps
Bengaluru
India
Engineering / R&D
4 open roles 1 posted in 90 days 100% engineering
hires for AI/ML, Backend, DevOps
Jobs
≈ $141k – $263k per year (Estimated) • Equity • Remote (location not specified) • Part-Time • Bachelor's Degree
Python
JavaScript
TypeScript
OpenAI
Apply
≈ $35k – $86k per year (Estimated) • Equity • In office • Contractor • Bachelor's Degree • Bengaluru
AI Agents
LLM
OpenAI
Post-training
Apply
≈ $32k – $84k per year (Estimated) • Equity • In office • Contractor • Bachelor's Degree • Bengaluru
Model Context Protocol
OpenAI
Apply
≈ $24k – $56k per year (Estimated) • Equity • In office • Contractor • Bachelor's Degree • Bengaluru
OpenAI
DevOps
Terraform
GCP
CI/CD
Kubernetes
IAM
Cybersecurity
SOC 2
GDPR
HIPAA
Least Privilege
Apply
≈ $160k – $310k per year (Estimated) • Equity • In office • Full-Time • Bachelor's Degree • San Francisco
OpenAI
DevOps
Terraform
GCP
CI/CD
Kubernetes
IAM
Cybersecurity
SOC 2
GDPR
HIPAA
Least Privilege
Apply
In office • Internship • Bachelor's Degree • San Francisco
AI Agents
LLM
OpenAI
Post-training
Agentic Workflows
Machine Learning
Apply
≈ $198k – $360k per year (Estimated) • Equity • In office • Full-Time • Bachelor's Degree • San Francisco
Model Context Protocol
OpenAI
Apply
≈ $200k – $408k per year (Estimated) • Equity • In office • Full-Time • Bachelor's Degree • San Francisco
AI Agents
LLM
OpenAI
Post-training
Apply