Onfly tech stack
Onfly builds mostly with Python, JavaScript, Node JS, PHP. Its stack also includes Vertex AI, AWS, BigQuery, Google BigQuery. Python is named in 6 of the 8 job postings Onfly published in the last 12 months (75%). Counted by Alion from the job postings of Onfly, updated Oct 8, 2026.
What programming languages does Onfly use?
Python is named in 75% of job postings at Onfly, followed by JavaScript (50%), Node JS (25%), PHP (25%).
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What frameworks and libraries does Onfly use?
LangChain is named in 25% of job postings at Onfly, followed by Anthropic SDK (13%), CrewAI (13%), Django (13%).
LangChain
2 25%
Anthropic SDK
1 13%
CrewAI
1 13%
Django
1 13%
LangGraph
1 13%
Laravel
1 13%
LightGBM
1 13%
LlamaIndex
1 13%
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What databases does Onfly use?
BigQuery is named in 25% of job postings at Onfly, followed by Google BigQuery (25%), MySQL (13%), Pinecone (13%).
BigQuery
2 25%
Google BigQuery
2 25%
MySQL
1 13%
Pinecone
1 13%
Qdrant
1 13%
Weaviate
1 13%
PostgreSQL
1 13%
What cloud and platforms does Onfly use?
Vertex AI is named in 38% of job postings at Onfly, followed by AWS (25%), GCP (25%), AWS Bedrock (13%).
Vertex AI
3 38%
AWS
2 25%
GCP
2 25%
AWS Bedrock
1 13%
Azure
1 13%
Datadog
1 13%
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What developer tools does Onfly use?
Git is named in 25% of job postings at Onfly, followed by Rest API (25%), Adobe After Effects (13%), Adobe Photoshop (13%).
Git
2 25%
Rest API
2 25%
Adobe After Effects
1 13%
Adobe Photoshop
1 13%
Canva
1 13%
Copilot
1 13%
DVC
1 13%
Docker
1 13%
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What AI and ML technologies does Onfly use?
Claude is named in 25% of job postings at Onfly, followed by ChatGPT (13%), Gemini (13%), LoRA (13%).
Which engineering practices does Onfly ask for?
Prompt Engineering is named in 38% of job postings at Onfly, followed by CI/CD (25%), LLM Guardrails (25%), Machine Learning (25%).
Prompt Engineering
3 38%
CI/CD
2 25%
Embeddings
1 13%
FinOps
1 13%
Fine-tuning
1 13%
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How does your stack fit Onfly?
How modern is the Onfly stack?
Onfly scores 91 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 7; legacy ones: 0.
How common is the Onfly stack in its industry?
Share of the 74 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Onfly apart
Companies with a stack like Onfly
Questions about the Onfly tech stack
What programming languages does Onfly use?
The languages named in Onfly job postings are Python (75%), JavaScript (50%), Node JS (25%), PHP (25%), SQL (25%), as a share of the 8 postings of the last 12 months.
Does Onfly use LangChain?
Yes. LangChain is named in 2 of 8 job postings (25%) and required in 1 of them.
What cloud and platforms does Onfly use?
The cloud and platforms named in Onfly job postings are Vertex AI (3), AWS (2), GCP (2) (postings in brackets).
Is the Onfly tech stack changing?
No new technology has appeared in Onfly job postings in the last six months.
How modern is the Onfly tech stack?
Onfly scores 91 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 7; legacy ones: 0.
How does Alion know the Onfly tech stack?
Alion reads every job posting Onfly publishes and tags the technologies each one names. The figures on this page count the 8 postings of the last 12 months and were updated on Oct 8, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "Onfly tech stack: 79 technologies from 8 job postings", as of Oct 8, 2026. https://alion.io/company/onfly/technologies