CertifyOS tech stack
CertifyOS builds mostly with TypeScript, SQL, Java, JavaScript. Its stack also includes GCP, Kubernetes, Google BigQuery, Google Cloud Spanner. GCP is named in 7 of the 18 job postings CertifyOS published in the last 12 months (39%). Counted by Alion from the job postings of CertifyOS, updated Nov 11, 2026.
What programming languages does CertifyOS use?
TypeScript is named in 33% of job postings at CertifyOS, followed by SQL (28%), Java (28%), JavaScript (28%).
What frameworks and libraries does CertifyOS use?
Quarkus is named in 17% of job postings at CertifyOS, followed by React.js (11%), Cypress (6%), LangChain (6%).
Quarkus
3 17%
React.js
2 11%
Cypress
1 6%
LangChain
1 6%
LangGraph
1 6%
LlamaIndex
1 6%
Playwright
1 6%
Selenium
1 6%
Show all (10)
What databases does CertifyOS use?
Google BigQuery is named in 28% of job postings at CertifyOS, followed by Google Cloud Spanner (17%), DynamoDB (11%), PostgreSQL (11%).
Google BigQuery
5 28%
Google Cloud Spanner
3 17%
DynamoDB
2 11%
PostgreSQL
2 11%
Amazon Aurora
1 6%
Amazon Redshift
1 6%
Cassandra
1 6%
ClickHouse
1 6%
Show all (11)
What cloud and platforms does CertifyOS use?
GCP is named in 39% of job postings at CertifyOS, followed by Kubernetes (39%), Apache Kafka (33%), GitHub Actions (28%).
GCP
7 39%
Kubernetes
7 39%
Apache Kafka
6 33%
GitHub Actions
5 28%
Sentry
5 28%
AWS
4 22%
Datadog
2 11%
Grafana
2 11%
Show all (19)
What developer tools does CertifyOS use?
Claude Code is named in 61% of job postings at CertifyOS, followed by Cursor (50%), Docker (44%), Model Context Protocol (28%).
Claude Code
11 61%
Cursor
9 50%
Docker
8 44%
Model Context Protocol
5 28%
Rest API
5 28%
Prometheus
2 11%
Copilot
1 6%
Show all (22)
What AI and ML technologies does CertifyOS use?
LLM is named in 17% of job postings at CertifyOS, followed by Claude (6%), Gemini (6%).
Which engineering practices does CertifyOS ask for?
AI Agents is named in 39% of job postings at CertifyOS, followed by CI/CD (39%), Agentic Workflows (17%), Master Data Management (17%).
AI Agents
7 39%
CI/CD
7 39%
Embeddings
2 11%
RAG
2 11%
Function Calling
1 6%
Show all (11)
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
4 postingsSolutions
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 88 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 330 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 TypeScript (33%), SQL (28%), Java (28%), JavaScript (28%), Python (22%), as a share of the 18 postings of the last 12 months.
Does CertifyOS use React.js?
Yes. React.js is named in 2 of 18 job postings (11%) and required in 2 of them.
What cloud and platforms does CertifyOS use?
The cloud and platforms named in CertifyOS job postings are GCP (7), Kubernetes (7), Apache Kafka (6) (postings in brackets).
What skills do you need for a Backend job at CertifyOS?
Backend postings at CertifyOS most often require Claude Code (4), Cursor (4), Model Context Protocol (3), Java (2), out of 4 postings in the last 12 months.
Is the CertifyOS tech stack changing?
Yes. AI Agents, AWS, Agentic Workflows, DynamoDB first appeared in CertifyOS job postings in the last six months.
How modern is the CertifyOS tech stack?
CertifyOS scores 88 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 18 postings of the last 12 months and were updated on Nov 11, 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: 84 technologies from 18 job postings", as of Nov 11, 2026. https://alion.io/company/certifyos/technologies