42Labs tech stack
42Labs builds mostly with SQL, Python, JavaScript, Java. Its stack also includes Spring Boot, .NET, API Gateway, Angular. SQL is named in 6 of the 9 job postings 42Labs published in the last 12 months (67%). Counted by Alion from the job postings of 42Labs, updated Nov 14, 2026.
What programming languages does 42Labs use?
SQL is named in 67% of job postings at 42Labs, followed by Python (44%), JavaScript (44%), Java (33%).
SQL
6 67%
Python
4 44%
JavaScript
4 44%
Java
3 33%
TypeScript
3 33%
C#
2 22%
Node JS
2 22%
COBOL
1 11%
What frameworks and libraries does 42Labs use?
Spring Boot is named in 33% of job postings at 42Labs, followed by Angular (22%), React.js (22%), LangChain (22%).
Spring Boot
3 33%
Angular
2 22%
React.js
2 22%
LangChain
2 22%
Django
1 11%
FastAPI
1 11%
Flask
1 11%
Jest
1 11%
Show all (22)
What databases does 42Labs use?
Amazon Aurora is named in 11% of job postings at 42Labs, followed by DynamoDB (11%), MySQL (11%), PostgreSQL (11%).
What cloud and platforms does 42Labs use?
.NET is named in 22% of job postings at 42Labs, followed by API Gateway (22%), Databricks (22%), AWS (11%).
.NET
2 22%
Databricks
2 22%
AWS
1 11%
AWS Fargate
1 11%
AWS Lambda
1 11%
Show all (17)
What developer tools does 42Labs use?
Git is named in 44% of job postings at 42Labs, followed by Rest API (33%), AWS CDK (11%), Devin (11%).
Git
4 44%
Rest API
3 33%
AWS CDK
1 11%
Docker
1 11%
Swagger
1 11%
Terraform
1 11%
Vite
1 11%
Show all (10)
Which engineering practices does 42Labs ask for?
CI/CD is named in 33% of job postings at 42Labs, followed by CAPA (11%), CSS Modules (11%), ETL/ELT (11%).
What does each 42Labs team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
5 postingsHow does your stack fit 42Labs?
How modern is the 42Labs stack?
42Labs scores 71 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How common is the 42Labs stack in its industry?
Share of the 5,937 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like 42Labs
Questions about the 42Labs tech stack
What programming languages does 42Labs use?
The languages named in 42Labs job postings are SQL (67%), Python (44%), JavaScript (44%), Java (33%), TypeScript (33%), as a share of the 9 postings of the last 12 months.
Does 42Labs use Spring Boot?
Yes. Spring Boot is named in 3 of 9 job postings (33%) and required in 3 of them.
What cloud and platforms does 42Labs use?
The cloud and platforms named in 42Labs job postings are .NET (2), API Gateway (2), Databricks (2) (postings in brackets).
What skills do you need for a Backend job at 42Labs?
Backend postings at 42Labs most often require SQL (3), Spring Boot (3), .NET (2), API Gateway (2), out of 5 postings in the last 12 months.
Is the 42Labs tech stack changing?
No new technology has appeared in 42Labs job postings in the last six months.
How modern is the 42Labs tech stack?
42Labs scores 71 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How does Alion know the 42Labs tech stack?
Alion reads every job posting 42Labs 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 Nov 14, 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, "42Labs tech stack: 69 technologies from 9 job postings", as of Nov 14, 2026. https://alion.io/company/42labs/technologies