When
forwhen.com
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Actively hiring
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Artificial Intelligence
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Financials
Tech stack
Technologies named in job postings at When over the last 12 months, by layer, with the share of postings for each.
Technologies in use
23
Postings analysed
2
Stack modernity
86/100AI adopter
Languages
JavaScript
Node JS
TypeScript
Frameworks & libraries
Cypress
Jest
LangChain
LangGraph
Material UI
React.js
Databases
BigQuery
Firestore
Google BigQuery
Cloud & platforms
Metabase
Firebase
GCP
GitLab
LangSmith
Developer tools
Claude Code
Cursor
Windsurf
GraphQL
AI & ML
Claude
LLM
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Growth
Hiring Momentum
58/100
Growing
Open positions
2
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.
Operations
50% ▲
Industrial Engineering
50% ▲
Activity Timeline
Added JavaScript to stack
Sep 2026
Added LangChain to stack
Sep 2026
Added Windsurf to stack
Sep 2026
Added TypeScript to stack
Sep 2026
Added React.js to stack
Sep 2026
Added Node JS to stack
Sep 2026
Added Material UI to stack
Sep 2026
Added LLM to stack
Sep 2026
Added LangSmith to stack
Sep 2026
Added LangGraph to stack
Sep 2026
Added Jest to stack
Sep 2026
Added HIPAA to stack
Sep 2026