IONOS tech stack
IONOS builds mostly with Java, Python, Bash, Go. Its stack also includes Anthropic, OpenAI, ElasticSearch, Qdrant. Java is named in 3 of the 4 job postings IONOS published in the last 12 months (75%). Counted by Alion from the job postings of IONOS, updated Oct 19, 2026.
What programming languages does IONOS use?
Java is named in 75% of job postings at IONOS, followed by Python (75%), Bash (25%), Go (25%).
What frameworks and libraries does IONOS use?
Asyncio is named in 50% of job postings at IONOS, followed by FastAPI (50%), LangChain (50%), LangGraph (50%).
Asyncio
2 50%
FastAPI
2 50%
LangChain
2 50%
LangGraph
2 50%
LlamaIndex
2 50%
pgvector
2 50%
React.js
1 25%
Spring Boot
1 25%
What databases does IONOS use?
ElasticSearch is named in 50% of job postings at IONOS, followed by Qdrant (50%), Weaviate (50%), PostgreSQL (50%).
What cloud and platforms does IONOS use?
Anthropic is named in 50% of job postings at IONOS, followed by OpenAI (50%), GitHub Actions (25%), GitLab CI (25%).
GitHub Actions
1 25%
GitLab CI
1 25%
Grafana
1 25%
Kubernetes
1 25%
What developer tools does IONOS use?
Model Context Protocol is named in 50% of job postings at IONOS, followed by ArgoCD (25%), Fluentd (25%), Helm (25%).
Model Context Protocol
2 50%
ArgoCD
1 25%
Fluentd
1 25%
Helm
1 25%
Prometheus
1 25%
Terraform
1 25%
VictoriaMetrics
1 25%
What AI and ML technologies does IONOS use?
DeepSeek is named in 50% of job postings at IONOS, followed by LLM (50%), Qwen (50%).
Which engineering practices does IONOS ask for?
Agentic Workflows is named in 50% of job postings at IONOS, followed by Multi-Agent Systems (50%), Multimodal AI (50%), RAG (50%).
Multimodal AI
2 50%
RAG
2 50%
Semantic Search
2 50%
CI/CD
1 25%
How 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 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 IONOS stack in its industry?
Share of the 384 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 Java (75%), Python (75%), Bash (25%), Go (25%), PHP (25%), as a share of the 4 postings of the last 12 months.
Does IONOS use Asyncio?
Yes. Asyncio is named in 2 of 4 job postings (50%) and required in 2 of them.
What cloud and platforms does IONOS use?
The cloud and platforms named in IONOS job postings are Anthropic (2), OpenAI (2), GitHub Actions (1) (postings in brackets).
Is the IONOS tech stack changing?
No new technology has appeared in IONOS job postings in the last six months.
How modern is the IONOS tech stack?
IONOS 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 IONOS tech stack?
Alion reads every job posting IONOS 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 19, 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: 42 technologies from 4 job postings", as of Oct 19, 2026. https://alion.io/company/ionos-de/technologies