KEY tech stack
KEY builds mostly with Python, TypeScript, JavaScript, Go. Its stack also includes GCP, AWS, React.js, MySQL. GCP is named in 4 of the 4 job postings KEY published in the last 12 months (100%). Counted by Alion from the job postings of KEY, updated Oct 30, 2026.
What programming languages does KEY use?
Python is named in 50% of job postings at KEY, followed by TypeScript (50%), JavaScript (50%), Go (25%).
What frameworks and libraries does KEY use?
React.js is named in 50% of job postings at KEY, followed by Django (25%), FastAPI (25%), Flask (25%).
React.js
2 50%
Django
1 25%
FastAPI
1 25%
Flask
1 25%
LangChain
1 25%
Next.js
1 25%
PyTorch
1 25%
Scikit-learn
1 25%
Show all (16)
What databases does KEY use?
MySQL is named in 25% of job postings at KEY, followed by PostgreSQL (25%), Redis (25%).
What cloud and platforms does KEY use?
GCP is named in 100% of job postings at KEY, followed by AWS (75%), GitHub Actions (75%), Datadog (75%).
GCP
4 100%
AWS
3 75%
GitHub Actions
3 75%
Datadog
3 75%
Azure
2 50%
GitLab CI
1 25%
Show all (13)
What developer tools does KEY use?
Docker is named in 75% of job postings at KEY, followed by Git (75%), Jenkins (25%), Rest API (25%).
Docker
3 75%
Git
3 75%
Jenkins
1 25%
Rest API
1 25%
Prometheus
1 25%
Terraform
1 25%
WebSockets
1 25%
What AI and ML technologies does KEY use?
LLM is named in 50% of job postings at KEY, followed by ChatGPT (25%), Claude (25%).
Which engineering practices does KEY ask for?
CI/CD is named in 75% of job postings at KEY, followed by RAG (50%), Embeddings (25%), Machine Learning (25%).
CI/CD
3 75%
RAG
2 50%
Embeddings
1 25%
State Management
1 25%
Prompt Engineering
1 25%
How does your stack fit KEY?
How modern is the KEY stack?
KEY scores 95 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 KEY stack in its industry?
Share of the 124 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like KEY
Questions about the KEY tech stack
What programming languages does KEY use?
The languages named in KEY job postings are Python (50%), TypeScript (50%), JavaScript (50%), Go (25%), SQL (25%), as a share of the 4 postings of the last 12 months.
Does KEY use React.js?
Yes. React.js is named in 2 of 4 job postings (50%) and required in 1 of them.
What cloud and platforms does KEY use?
The cloud and platforms named in KEY job postings are GCP (4), AWS (3), GitHub Actions (3) (postings in brackets).
Is the KEY tech stack changing?
No new technology has appeared in KEY job postings in the last six months.
How modern is the KEY tech stack?
KEY scores 95 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 KEY tech stack?
Alion reads every job posting KEY publishes and tags the technologies each one names. The figures on this page count the 4 postings of the last 12 months and were updated on Oct 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, "KEY tech stack: 55 technologies from 4 job postings", as of Oct 30, 2026. https://alion.io/company/key/technologies