IONOS tech stack
IONOS builds mostly with Python, Bash, Go, SQL. Its stack also includes Linux, Kubernetes, ClickHouse, MS SQL. Python is named in 17 of the 29 job postings IONOS published in the last 12 months (59%). Counted by Alion from the job postings of IONOS, updated Sep 27, 2026.
What programming languages does IONOS use?
Python is named in 59% of job postings at IONOS, followed by Bash (24%), Go (14%), SQL (14%).
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What frameworks and libraries does IONOS use?
FastAPI is named in 7% of job postings at IONOS, followed by React.js (7%), Angular (3%), Asyncio (3%).
FastAPI
2 7%
React.js
2 7%
Angular
1 3%
Asyncio
1 3%
LangChain
1 3%
LangGraph
1 3%
LlamaIndex
1 3%
SQLAlchemy
1 3%
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What databases does IONOS use?
ClickHouse is named in 7% of job postings at IONOS, followed by MS SQL (7%), Azure SQL Database (3%), Delta Lake (3%).
ClickHouse
2 7%
MS SQL
2 7%
Azure SQL Database
1 3%
Delta Lake
1 3%
ElasticSearch
1 3%
Qdrant
1 3%
Weaviate
1 3%
PostgreSQL
1 3%
What cloud and platforms does IONOS use?
Linux is named in 41% of job postings at IONOS, followed by Kubernetes (38%), Grafana (17%), GitLab (10%).
Kubernetes
11 38%
Grafana
5 17%
GitLab
3 10%
Azure
2 7%
GitHub Actions
2 7%
GitLab CI
2 7%
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What developer tools does IONOS use?
Ansible is named in 24% of job postings at IONOS, followed by Rest API (21%), Terraform (17%), Docker (14%).
Ansible
7 24%
Rest API
6 21%
Terraform
5 17%
Docker
4 14%
Git
3 10%
Prometheus
3 10%
ArgoCD
2 7%
Fluentd
2 7%
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What AI and ML technologies does IONOS use?
LLM is named in 14% of job postings at IONOS, followed by Claude (10%), ChatGPT (7%), DeepSeek (3%).
Which engineering practices does IONOS ask for?
CI/CD is named in 31% of job postings at IONOS, followed by DNS (17%), BGP (14%), AI Agents (10%).
CI/CD
9 31%
AI Agents
3 10%
Show all (21)
What does each IONOS team work with?
The technologies each team's postings require most often, with the number of postings that require them.
DevOps
5 postingsEarly Careers
4 postingsHow does your stack fit IONOS?
How is the IONOS 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 IONOS stack?
IONOS 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: 6; legacy ones: 0.
How common is the IONOS stack in its industry?
Share of the 243 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like IONOS
Questions about the IONOS tech stack
What programming languages does IONOS use?
The languages named in IONOS job postings are Python (59%), Bash (24%), Go (14%), SQL (14%), JavaScript (10%), as a share of the 29 postings of the last 12 months.
Does IONOS use FastAPI?
Yes. FastAPI is named in 2 of 29 job postings (7%) and required in 2 of them.
What cloud and platforms does IONOS use?
The cloud and platforms named in IONOS job postings are Linux (12), Kubernetes (11), Grafana (5) (postings in brackets).
What skills do you need for a DevOps job at IONOS?
DevOps postings at IONOS most often require Kubernetes (5), Linux (5), Python (5), Bash (3), out of 5 postings in the last 12 months.
Is the IONOS tech stack changing?
Yes. OSPF, Tcpdump, PKI, Git first appeared in IONOS job postings in the last six months.
How modern is the IONOS tech stack?
IONOS 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: 6; legacy ones: 0.
How does Alion know the IONOS tech stack?
Alion reads every job posting IONOS publishes and tags the technologies each one names. The figures on this page count the 29 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, "IONOS tech stack: 112 technologies from 29 job postings", as of Sep 27, 2026. https://alion.io/company/ionos/technologies