StackOne
stackone.com
Actively hiring
Cybersecurity
Artificial Intelligence
AI Agents
As featured in
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$23.6M
2 rounds on record
Latest round
$20M
Series A · May 2025 · 16 mo ago
Team
51-200
employees, estimated range
Hiring now
4
open roles
Backers
1
Episode 1 Ventures
The money's age
Due for its next round
16 months since the last round · hiring slowed
Momentum
0/100
no fresh signals
Last sign of life
this month
a posting or a news item
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
Hacker News stories
3
best: 7 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Series A | May 2025 | $20M | GV lead | businesswire.com |
| Seed | Mar 2024 | $3.6M | — | PYMNTS.com |
Backed byfrom the funds' portfolios and accelerator catalogs
Episode 1 Ventures Similar startupsby what they do, their industry and backers
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How StackOne hires
Truth index
B 75/100
Ghost roles
0%
Stale roles
100%
Reposted roles
0%
StackOne scores B on the Alion truth index (A is best, E worst), measured over 4 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
News
Training a 22MB Prompt Injection Classifier
How we built and iterated on the 22MB ONNX classifier inside Defender: backbone selection, training data, freeze-layer optimization, and the inference pipeline.
Read more
Report
120+ Agentic AI Tools Mapped Across 11 Categories 2026
Map of 120+ agentic AI tools across 11 categories - frameworks, no-code builders, observability, coding agents, enterprise platforms, and more. Updated Q1 2026.
Read more
Report
StackOne lève 17,7 millions d'euros pour dépasser Zapier et réinventer les intégrations SaaS à l'ère de l'IA
La qualité et la fiabilité des intégrations entre outils logiciels et agent autonomes, est un enjeu stratégique. C'est sur cette faille structurelle que
Read more
Report
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Tech stack
Technologies named in job postings at StackOne over the last 12 months, by layer, with the share of postings for each.
Technologies in use
24
Postings analysed
4
Stack modernity
79/100
Languages
Python
JavaScript
SQL
Node JS
Frameworks & libraries
Nest.JS
Cypress
React.js
Selenium
Databases
PostgreSQL
Cloud & platforms
AWS
Azure
GCP
Amazon ECS
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Full StackOne tech stack
24 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
48/100
Stable
Open positions
4
0 opened / 0 closed in 30 days
ATS activity
Every ~1 days
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.
Backend
50% ▼
QA
50% ▼
Offices
Where the company hires and what each office is for
Cities
4
Hiring now
3
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
StackOne Technologies Inc.
1 open roles 100% engineering 10-50 est. staff
hires for Backend
2261 Market Street STE 85634, San Francisco, 94114
London
United Kingdom
1 open roles 100% engineering 10-50 est. staff
hires for QA
London Bridge
Sheffield
United Kingdom
1 open roles 100% engineering 10-50 est. staff
hires for QA
London Road
Newbury
United Kingdom
Regional office
StackOne
2 Communications Road, Newbury, RG19 6AB
Jobs
≈ $156k – $288k per year (Estimated) • In office • 5+ years exp • Bachelor's Degree • San Francisco
Python
Go
Java
SQL
GCP
Azure
AWS
Apply
≈ $66k – $121k per year (Estimated) • In office • Full-Time • 3+ years exp • London
Python
JavaScript
CI/CD
QA
Selenium
Cypress
Postman
Rest-Assured
Apply
In office • Contractor • Bachelor's Degree • India
Python
JavaScript
TypeScript
SQL
C++
Node JS
Nest.JS
Databases
PostgreSQL
Frontend
React.js
DevOps
GCP
Datadog
Azure
CI/CD
Git
AWS
GitHub
Amazon ECS
Cybersecurity
SOC 2
GDPR
Management
Slack
Notion
Jira
Agile
Scrum
QA
Sentry
Apply
≈ $54k – $126k per year (Estimated) • In office • Contractor • Sheffield
JavaScript
TypeScript
Node JS
Nest.JS
Databases
PostgreSQL
DevOps
Datadog
AWS
GitHub
Amazon ECS
Cybersecurity
SOC 2
GDPR
Management
Slack
Jira
QA
Sentry
Apply