CHECK24 tech stack

CHECK24 builds mostly with Python, TypeScript, PHP, JavaScript. Its stack also includes React.js, MySQL, Figma, Linux. ChatGPT is named in 36 of the 69 job postings CHECK24 published in the last 12 months (52%). Counted by Alion from the job postings of CHECK24, updated Oct 6, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Oct 6, 2026
Technologies in use
85
Postings analysed
69
Open now
66
Modernity
85 /100

What programming languages does CHECK24 use?

Python is named in 28% of job postings at CHECK24, followed by TypeScript (28%), PHP (25%), JavaScript (23%).

Python 19 28% required in 95% · 19 open now · since Sep 2026
TypeScript 19 28% required in 89% · 17 open now · since Aug 2026
PHP 17 25% required in 88% · 15 open now · since Aug 2026
JavaScript 16 23% required in 6% · 15 open now · since Aug 2026
Go 9 13% required in 89% · 9 open now · since Sep 2026
C# 8 12% required in 75% · 8 open now · since Sep 2026
Java 7 10% required in 100% · 7 open now · since Sep 2026
SQL 7 10% required in 86% · 7 open now · since Oct 2026
Show all (12)
Bash2
Kotlin2
Swift2
Node JS1

What frameworks and libraries does CHECK24 use?

React.js is named in 17% of job postings at CHECK24, followed by Django (6%), Symfony (6%), React Router (4%).

React.js 12 17% required in 75% · 11 open now · since Aug 2026
Django 4 6% required in 100% · 4 open now · since Oct 2026
Symfony 4 6% required in 75% · 4 open now · since Oct 2026
React Router 3 4% required in 33% · 3 open now · since Oct 2026
Immer 2 3% required in 100% · 2 open now · since Oct 2026
Svelte 2 3% required in 100% · 2 open now · since Oct 2026
Tailwind CSS 2 3% required in 100% · 2 open now · since Oct 2026
Angular 2 3% required in 50% · 1 open now · since Oct 2026
Show all (15)
FastAPI1
Laravel1
NumPy1
PyTorch1
Remix1
Scikit-learn1
Zustand1

What databases does CHECK24 use?

MySQL is named in 16% of job postings at CHECK24, followed by ClickHouse (1%), ElasticSearch (1%).

MySQL 11 16% required in 82% · 11 open now · since Oct 2026
ClickHouse 1 1% required in 100% · 1 open now · since Oct 2026
ElasticSearch 1 1% required in 100% · 1 open now · since Oct 2026

What cloud and platforms does CHECK24 use?

Figma is named in 7% of job postings at CHECK24, followed by Linux (7%), AWS (6%), Debian (3%).

Figma 5 7% required in 100% · 5 open now · since Oct 2026
Linux 5 7% required in 80% · 5 open now · since Oct 2026
AWS 4 6% required in 50% · 4 open now · since Oct 2026
Debian 2 3% required in 100% · 2 open now · since Oct 2026
Grafana 2 3% required in 100% · 2 open now · since Oct 2026
.NET 2 3% required in 50% · 2 open now · since Oct 2026
Bitbucket 1 1% required in 100% · 1 open now · since Oct 2026
GitHub 1 1% required in 100% · 1 open now · since Oct 2026
Show all (11)
Postman1
Ubuntu1
GCP1

What developer tools does CHECK24 use?

Cursor is named in 32% of job postings at CHECK24, followed by Claude Code (20%), Docker (13%), Git (12%).

Cursor 22 32% required in 91% · 22 open now · since Sep 2026
Claude Code 14 20% required in 93% · 14 open now · since Oct 2026
Docker 9 13% required in 78% · 9 open now · since Oct 2026
Git 8 12% required in 88% · 8 open now · since Oct 2026
Ansible 7 10% required in 86% · 7 open now · since Oct 2026
Rest API 6 9% required in 100% · 6 open now · since Oct 2026
Lovable 4 6% required in 100% · 4 open now · since Oct 2026
Terraform 3 4% required in 67% · 3 open now · since Oct 2026
Show all (19)
Copilot2
Chef2
Puppet2
AWS CDK1
FortiGate1
Gunicorn1
Microsoft Excel1
SaltStack1
Nginx1
OpenAI Codex1
PHP-FPM1

What AI and ML technologies does CHECK24 use?

ChatGPT is named in 52% of job postings at CHECK24, followed by Claude (28%), LLM (19%), Gemini (6%).

ChatGPT 36 52% required in 86% · 35 open now · since Aug 2026
Claude 19 28% required in 89% · 18 open now · since Aug 2026
LLM 13 19% required in 85% · 13 open now · since Oct 2026
Gemini 4 6% required in 75% · 4 open now · since Oct 2026
Midjourney 2 3% required in 100% · 2 open now · since Oct 2026

Which engineering practices does CHECK24 ask for?

CI/CD is named in 9% of job postings at CHECK24, followed by Clean Architecture (7%), GitOps (6%), Prompt Engineering (6%).

CI/CD 6 9% required in 83% · 6 open now · since Aug 2026
Clean Architecture 5 7% required in 80% · 3 open now · since Aug 2026
GitOps 4 6% required in 100% · 4 open now · since Oct 2026
Prompt Engineering 4 6% required in 75% · 4 open now · since Oct 2026
AI Agents 2 3% required in 100% · 2 open now · since Oct 2026
Machine Learning 2 3% required in 100% · 2 open now · since Oct 2026
Tool Use 2 3% required in 100% · 2 open now · since Oct 2026
Agentic Workflows 2 3% required in 50% · 2 open now · since Oct 2026
Show all (20)
Voice Agents2
Embeddings1
Function Calling1
Gitflow1
RAG1
Recommender Systems1
Semantic Search1
Semantic Search1
A/B Testing1
Fine-tuning1
Hybrid Search1
VLAN1

What does each CHECK24 team work with?

The technologies each team's postings require most often, with the number of postings that require them.

Backend

25 postings
TypeScript16
PHP13
ChatGPT10
Cursor10
Claude Code8
Python8

Early Careers

19 postings
ChatGPT9
Cursor5
Claude4
LLM4
Python3
SQL3

Finance

4 postings
ChatGPT2
Claude2
SQL2

DevOps

4 postings
Python4
Docker3
Linux3
Ansible2
Bash2
Debian2

Sales

3 postings
ChatGPT3
Claude2

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How modern is the CHECK24 stack?

Cutting-edge AI adopter 85/100

CHECK24 scores 85 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: 5; legacy ones: 0.

Questions about the CHECK24 tech stack

What programming languages does CHECK24 use?

The languages named in CHECK24 job postings are Python (28%), TypeScript (28%), PHP (25%), JavaScript (23%), Go (13%), as a share of the 69 postings of the last 12 months.

Does CHECK24 use React.js?

Yes. React.js is named in 12 of 69 job postings (17%) and required in 9 of them.

What cloud and platforms does CHECK24 use?

The cloud and platforms named in CHECK24 job postings are Figma (5), Linux (5), AWS (4) (postings in brackets).

What skills do you need for a Backend job at CHECK24?

Backend postings at CHECK24 most often require TypeScript (16), PHP (13), ChatGPT (10), Cursor (10), out of 25 postings in the last 12 months.

Is the CHECK24 tech stack changing?

No new technology has appeared in CHECK24 job postings in the last six months.

How modern is the CHECK24 tech stack?

CHECK24 scores 85 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: 5; legacy ones: 0.

How does Alion know the CHECK24 tech stack?

Alion reads every job posting CHECK24 publishes and tags the technologies each one names. The figures on this page count the 69 postings of the last 12 months and were updated on Oct 6, 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, "CHECK24 tech stack: 85 technologies from 69 job postings", as of Oct 6, 2026. https://alion.io/company/check24/technologies

Licence: CC BY-SA 4.0JSON