Junior AI tech stack
Junior AI builds mostly with TypeScript, JavaScript, Python, SQL. Its stack also includes Next.js, React.js, PostgreSQL, Together AI. LLM is named in 14 of the 18 job postings Junior AI published in the last 12 months (78%). Counted by Alion from the job postings of Junior AI, updated Oct 16, 2026.
What programming languages does Junior AI use?
TypeScript is named in 44% of job postings at Junior AI, followed by JavaScript (44%), Python (22%), SQL (11%).
What frameworks and libraries does Junior AI use?
Next.js is named in 44% of job postings at Junior AI, followed by React.js (44%), Matplotlib (6%), Plotly (6%).
What databases does Junior AI use?
PostgreSQL is named in 39% of job postings at Junior AI, followed by ClickHouse (11%).
PostgreSQL
7 39%
ClickHouse
2 11%
What cloud and platforms does Junior AI use?
Together AI is named in 17% of job postings at Junior AI, followed by Looker (6%), Metabase (6%), Tableau (6%).
What developer tools does Junior AI use?
Copilot is named in 17% of job postings at Junior AI.
Copilot
3 17%
What AI and ML technologies does Junior AI use?
LLM is named in 78% of job postings at Junior AI, followed by Claude (22%), ChatGPT (6%).
Which engineering practices does Junior AI ask for?
Knowledge Graph is named in 17% of job postings at Junior AI, followed by Multi-Agent Systems (17%), Embeddings (17%), Human-in-the-Loop (6%).
What does each Junior AI team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
7 postingsHow does your stack fit Junior AI?
How is the Junior AI stack changing?
Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.
How modern is the Junior AI stack?
Junior AI scores 88 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: 3; legacy ones: 0.
How common is the Junior AI stack in its industry?
Share of the 36 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Junior AI apart
Companies with a stack like Junior AI
Questions about the Junior AI tech stack
What programming languages does Junior AI use?
The languages named in Junior AI job postings are TypeScript (44%), JavaScript (44%), Python (22%), SQL (11%), as a share of the 18 postings of the last 12 months.
Does Junior AI use Next.js?
Yes. Next.js is named in 8 of 18 job postings (44%) and required in 8 of them.
What cloud and platforms does Junior AI use?
The cloud and platforms named in Junior AI job postings are Together AI (3), Looker (1), Metabase (1) (postings in brackets).
What skills do you need for a Backend job at Junior AI?
Backend postings at Junior AI most often require Next.js (7), TypeScript (7), PostgreSQL (6), LLM (4), out of 7 postings in the last 12 months.
Is the Junior AI tech stack changing?
No new technology has appeared in Junior AI job postings in the last six months.
How modern is the Junior AI tech stack?
Junior AI scores 88 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: 3; legacy ones: 0.
How does Alion know the Junior AI tech stack?
Alion reads every job posting Junior AI publishes and tags the technologies each one names. The figures on this page count the 18 postings of the last 12 months and were updated on Oct 16, 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, "Junior AI tech stack: 22 technologies from 18 job postings", as of Oct 16, 2026. https://alion.io/company/junior/technologies