ZEFR tech stack
ZEFR builds mostly with Python, Node JS, SQL, JavaScript. Its stack also includes AWS, GCP, Snowflake, PostgreSQL. Python is named in 3 of the 3 job postings ZEFR published in the last 12 months (100%). Counted by Alion from the job postings of ZEFR, updated Oct 9, 2026.
What programming languages does ZEFR use?
Python is named in 100% of job postings at ZEFR, followed by Node JS (33%), SQL (33%), JavaScript (33%).
What frameworks and libraries does ZEFR use?
Dask is named in 33% of job postings at ZEFR, followed by FastAPI (33%), Flask (33%), OpenTelemetry (33%).
What databases does ZEFR use?
Snowflake is named in 100% of job postings at ZEFR, followed by PostgreSQL (67%), DynamoDB (33%), ElasticSearch (33%).
What cloud and platforms does ZEFR use?
AWS is named in 100% of job postings at ZEFR, followed by GCP (100%), Airflow (67%), GitHub Actions (67%).
AWS
3 100%
GCP
3 100%
Airflow
2 67%
GitHub Actions
2 67%
Kubernetes
2 67%
Apache Kafka
1 33%
Azure
1 33%
Datadog
1 33%
Show all (12)
What developer tools does ZEFR use?
ArgoCD is named in 67% of job postings at ZEFR, followed by Terraform (67%), Docker (67%), Claude Code (33%).
ArgoCD
2 67%
Terraform
2 67%
Docker
2 67%
Claude Code
1 33%
Copilot
1 33%
Cursor
1 33%
Model Context Protocol
1 33%
Prometheus
1 33%
Show all (10)
Which engineering practices does ZEFR ask for?
Multimodal AI is named in 100% of job postings at ZEFR, followed by AI Agents (33%), CI/CD (33%), GitOps (33%).
How does your stack fit ZEFR?
How modern is the ZEFR stack?
ZEFR scores 76 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: 0; legacy ones: 0.
How common is the ZEFR stack in its industry?
Share of the 3,218 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like ZEFR
Questions about the ZEFR tech stack
What programming languages does ZEFR use?
The languages named in ZEFR job postings are Python (100%), Node JS (33%), SQL (33%), JavaScript (33%), as a share of the 3 postings of the last 12 months.
Does ZEFR use AWS?
Yes. AWS is named in 3 of 3 job postings (100%) and required in 3 of them.
What cloud and platforms does ZEFR use?
The cloud and platforms named in ZEFR job postings are AWS (3), GCP (3), Airflow (2) (postings in brackets).
Is the ZEFR tech stack changing?
No new technology has appeared in ZEFR job postings in the last six months.
How modern is the ZEFR tech stack?
ZEFR scores 76 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: 0; legacy ones: 0.
How does Alion know the ZEFR tech stack?
Alion reads every job posting ZEFR publishes and tags the technologies each one names. The figures on this page count the 3 postings of the last 12 months and were updated on Oct 9, 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, "ZEFR tech stack: 42 technologies from 3 job postings", as of Oct 9, 2026. https://alion.io/company/zefr/technologies