Onyx tech stack
Onyx builds mostly with Python, TypeScript, JavaScript. Its stack also includes PostgreSQL, Next.js, Perplexity, AWS. Python is named in 3 of the 3 job postings Onyx published in the last 12 months (100%). Counted by Alion from the job postings of Onyx, updated Oct 17, 2026.
What programming languages does Onyx use?
Python is named in 100% of job postings at Onyx, followed by TypeScript (100%), JavaScript (33%).
What frameworks and libraries does Onyx use?
Next.js is named in 100% of job postings at Onyx, followed by Haystack (33%), PyTorch (33%), React.js (33%).
What databases does Onyx use?
PostgreSQL is named in 100% of job postings at Onyx, followed by Redis (33%).
PostgreSQL
3 100%
Redis
1 33%
What cloud and platforms does Onyx use?
Perplexity is named in 33% of job postings at Onyx, followed by AWS (33%), Azure (33%), GCP (33%).
What AI and ML technologies does Onyx use?
LLM is named in 67% of job postings at Onyx, followed by ChatGPT (33%).
Which engineering practices does Onyx ask for?
Knowledge Graph is named in 67% of job postings at Onyx, followed by NLP (67%), Machine Learning (33%), Multimodal AI (33%).
How does your stack fit Onyx?
How modern is the Onyx stack?
Onyx scores 89 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: 2; legacy ones: 0.
How common is the Onyx stack in its industry?
Share of the 1,347 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Onyx
Questions about the Onyx tech stack
What programming languages does Onyx use?
The languages named in Onyx job postings are Python (100%), TypeScript (100%), JavaScript (33%), as a share of the 3 postings of the last 12 months.
Does Onyx use Next.js?
Yes. Next.js is named in 3 of 3 job postings (100%) and required in 2 of them.
What cloud and platforms does Onyx use?
The cloud and platforms named in Onyx job postings are Perplexity (1), AWS (1), Azure (1) (postings in brackets).
Is the Onyx tech stack changing?
No new technology has appeared in Onyx job postings in the last six months.
How modern is the Onyx tech stack?
Onyx scores 89 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: 2; legacy ones: 0.
How does Alion know the Onyx tech stack?
Alion reads every job posting Onyx publishes and tags the technologies each one names. The figures on this page count the 3 postings of the last 12 months and were updated on Oct 17, 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, "Onyx tech stack: 23 technologies from 3 job postings", as of Oct 17, 2026. https://alion.io/company/onyx/technologies