CertifyOS tech stack
CertifyOS builds mostly with Java, TypeScript, JavaScript, SQL. Its stack also includes GCP, Kubernetes, Google BigQuery, BigQuery. GCP is named in 6 of the 9 job postings CertifyOS published in the last 12 months (67%). Counted by Alion from the job postings of CertifyOS, updated Sep 27, 2026.
What programming languages does CertifyOS use?
Java is named in 56% of job postings at CertifyOS, followed by TypeScript (56%), JavaScript (44%), SQL (33%).
Java
5 56%
TypeScript
5 56%
JavaScript
4 44%
SQL
3 33%
Python
2 22%
Bash
1 11%
Go
1 11%
Node JS
1 11%
What frameworks and libraries does CertifyOS use?
Quarkus is named in 33% of job postings at CertifyOS, followed by React.js (22%), LangChain (11%), LangGraph (11%).
What databases does CertifyOS use?
Google BigQuery is named in 44% of job postings at CertifyOS, followed by BigQuery (33%), Google Cloud Spanner (33%), DynamoDB (11%).
Google BigQuery
4 44%
BigQuery
3 33%
Google Cloud Spanner
3 33%
DynamoDB
1 11%
Firestore
1 11%
PostgreSQL
1 11%
What cloud and platforms does CertifyOS use?
GCP is named in 67% of job postings at CertifyOS, followed by Kubernetes (56%), Apache Kafka (44%), GitHub Actions (44%).
GCP
6 67%
Kubernetes
5 56%
Apache Kafka
4 44%
GitHub Actions
4 44%
Sentry
4 44%
AWS
2 22%
Azure
1 11%
Show all (17)
What developer tools does CertifyOS use?
Docker is named in 67% of job postings at CertifyOS, followed by Claude Code (44%), Rest API (44%), Cursor (33%).
Docker
6 67%
Claude Code
4 44%
Rest API
4 44%
Cursor
3 33%
Model Context Protocol
3 33%
Git
1 11%
GraphQL
1 11%
Show all (14)
What AI and ML technologies does CertifyOS use?
LLM is named in 33% of job postings at CertifyOS, followed by Claude (22%), Gemini (11%).
Which engineering practices does CertifyOS ask for?
CI/CD is named in 56% of job postings at CertifyOS, followed by AI Agents (22%), Agentic Workflows (22%), Embeddings (22%).
CI/CD
5 56%
AI Agents
2 22%
Embeddings
2 22%
RAG
2 22%
Function Calling
1 11%
Platform Engineering
1 11%
Show all (10)
What does each CertifyOS 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 CertifyOS?
How is the CertifyOS 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 CertifyOS stack?
CertifyOS scores 90 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 CertifyOS stack in its industry?
Share of the 102 companies in the same industries, whose stack Alion knows, that use each technology.
What sets CertifyOS apart
Companies with a stack like CertifyOS
Questions about the CertifyOS tech stack
What programming languages does CertifyOS use?
The languages named in CertifyOS job postings are Java (56%), TypeScript (56%), JavaScript (44%), SQL (33%), Python (22%), as a share of the 9 postings of the last 12 months.
Does CertifyOS use React.js?
Yes. React.js is named in 2 of 9 job postings (22%) and required in 2 of them.
What cloud and platforms does CertifyOS use?
The cloud and platforms named in CertifyOS job postings are GCP (6), Kubernetes (5), Apache Kafka (4) (postings in brackets).
What skills do you need for a Backend job at CertifyOS?
Backend postings at CertifyOS most often require Claude Code (3), Cursor (3), Java (2), Model Context Protocol (2), out of 3 postings in the last 12 months.
Is the CertifyOS tech stack changing?
Yes. AI Agents, AWS, Agentic Workflows, Embeddings first appeared in CertifyOS job postings in the last six months.
How modern is the CertifyOS tech stack?
CertifyOS scores 90 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 CertifyOS tech stack?
Alion reads every job posting CertifyOS 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 27, 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, "CertifyOS tech stack: 64 technologies from 9 job postings", as of Sep 27, 2026. https://alion.io/company/certifyos/technologies