Built tech stack
Built builds mostly with TypeScript, JavaScript, Python, Node JS. Its stack also includes AWS, React.js, Apache Kafka, Snowflake. TypeScript is named in 4 of the 9 job postings Built published in the last 12 months (44%). Counted by Alion from the job postings of Built, updated Sep 30, 2026.
What programming languages does Built use?
TypeScript is named in 44% of job postings at Built, followed by JavaScript (33%), Python (33%), Node JS (22%).
What frameworks and libraries does Built use?
React.js is named in 33% of job postings at Built, followed by Flink (11%), Next.js (11%), Django (11%).
What databases does Built use?
Snowflake is named in 22% of job postings at Built, followed by PostgreSQL (11%), DynamoDB (11%), MySQL (11%).
What cloud and platforms does Built use?
AWS is named in 33% of job postings at Built, followed by Apache Kafka (22%), Looker (11%), OpenAI (11%).
AWS
3 33%
Apache Kafka
2 22%
Tableau
1 11%
Figma
1 11%
GitHub
1 11%
Kubernetes
1 11%
What developer tools does Built use?
dbt is named in 22% of job postings at Built, followed by Model Context Protocol (11%), Docker (11%), GraphQL (11%).
What AI and ML technologies does Built use?
Claude is named in 22% of job postings at Built, followed by LLM (22%), Gemini (11%).
Which engineering practices does Built ask for?
AI Agents is named in 22% of job postings at Built, followed by Platform Engineering (22%), RAG (11%), SLI/SLO/SLA (11%).
What does each Built team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
3 postingsHow does your stack fit Built?
How modern is the Built stack?
Built scores 94 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 Built stack in its industry?
Share of the 2,472 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Built
Questions about the Built tech stack
What programming languages does Built use?
The languages named in Built job postings are TypeScript (44%), JavaScript (33%), Python (33%), Node JS (22%), as a share of the 9 postings of the last 12 months.
Does Built use React.js?
Yes. React.js is named in 3 of 9 job postings (33%) and required in 2 of them.
What cloud and platforms does Built use?
The cloud and platforms named in Built job postings are AWS (3), Apache Kafka (2), Looker (1) (postings in brackets).
What skills do you need for a Backend job at Built?
Backend postings at Built most often require AWS (2), JavaScript (2), React.js (2), TypeScript (2), out of 3 postings in the last 12 months.
Is the Built tech stack changing?
No new technology has appeared in Built job postings in the last six months.
How modern is the Built tech stack?
Built scores 94 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 Built tech stack?
Alion reads every job posting Built publishes and tags the technologies each one names. The figures on this page count the 9 postings of the last 12 months and were updated on Sep 30, 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, "Built tech stack: 37 technologies from 9 job postings", as of Sep 30, 2026. https://alion.io/company/built/technologies