Heldenrat tech stack
Heldenrat builds mostly with Python, SQL, Java, JavaScript. Its stack also includes AWS, Kubernetes, PostgreSQL, Spring Boot. Python is named in 24 of the 71 job postings Heldenrat published in the last 12 months (34%). Counted by Alion from the job postings of Heldenrat, updated Oct 23, 2026.
What programming languages does Heldenrat use?
Python is named in 34% of job postings at Heldenrat, followed by SQL (23%), Java (21%), JavaScript (21%).
Python
24 34%
SQL
16 23%
Java
15 21%
JavaScript
15 21%
Kotlin
10 14%
Node JS
9 13%
ABAP
7 10%
TypeScript
7 10%
Show all (13)
What frameworks and libraries does Heldenrat use?
Spring Boot is named in 10% of job postings at Heldenrat, followed by React.js (8%), Jackson (6%), PyTorch (4%).
Spring Boot
7 10%
React.js
6 8%
Jackson
4 6%
PyTorch
3 4%
Flink
2 3%
Spring Framework
2 3%
TensorFlow
2 3%
Axios
1 1%
Show all (19)
What databases does Heldenrat use?
PostgreSQL is named in 13% of job postings at Heldenrat, followed by DynamoDB (4%), Delta Lake (3%), SAP HANA (3%).
PostgreSQL
9 13%
DynamoDB
3 4%
Delta Lake
2 3%
SAP HANA
2 3%
ElasticSearch
2 3%
Redis
2 3%
Amazon Redshift
1 1%
Cassandra
1 1%
Show all (13)
What cloud and platforms does Heldenrat use?
AWS is named in 34% of job postings at Heldenrat, followed by Kubernetes (23%), Databricks (14%), Spark (14%).
AWS
24 34%
Kubernetes
16 23%
Databricks
10 14%
Spark
10 14%
Apache Kafka
7 10%
Show all (19)
What developer tools does Heldenrat use?
Rest API is named in 28% of job postings at Heldenrat, followed by Docker (10%), pySpark (7%), Gradle (6%).
Rest API
20 28%
Docker
7 10%
pySpark
5 7%
Gradle
4 6%
Claude Code
4 6%
Git
3 4%
Show all (16)
What AI and ML technologies does Heldenrat use?
LLM is named in 7% of job postings at Heldenrat, followed by Claude (4%), Gemini (3%), Gaussian Splatting (1%).
Which engineering practices does Heldenrat ask for?
CI/CD is named in 31% of job postings at Heldenrat, followed by Machine Learning (21%), A/B Testing (10%), AI Agents (8%).
CI/CD
22 31%
AI Agents
6 8%
Embeddings
4 6%
Show all (28)
What other technologies does Heldenrat use?
CDS Views is named in 1% of job postings at Heldenrat.
What does each Heldenrat team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
25 postingsEnterprise Apps
14 postingsAI/ML
8 postingsAnalytics
5 postingsData Science
3 postingsHow does your stack fit Heldenrat?
How modern is the Heldenrat stack?
Heldenrat scores 87 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: 4; legacy ones: 0.
Companies with a stack like Heldenrat
Questions about the Heldenrat tech stack
What programming languages does Heldenrat use?
The languages named in Heldenrat job postings are Python (34%), SQL (23%), Java (21%), JavaScript (21%), Kotlin (14%), as a share of the 71 postings of the last 12 months.
Does Heldenrat use Spring Boot?
Yes. Spring Boot is named in 7 of 71 job postings (10%) and required in 7 of them.
What cloud and platforms does Heldenrat use?
The cloud and platforms named in Heldenrat job postings are AWS (24), Kubernetes (16), Databricks (10) (postings in brackets).
What skills do you need for a Backend job at Heldenrat?
Backend postings at Heldenrat most often require AWS (12), Java (11), Rest API (11), Kotlin (8), out of 25 postings in the last 12 months.
Is the Heldenrat tech stack changing?
No new technology has appeared in Heldenrat job postings in the last six months.
How modern is the Heldenrat tech stack?
Heldenrat scores 87 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: 4; legacy ones: 0.
How does Alion know the Heldenrat tech stack?
Alion reads every job posting Heldenrat publishes and tags the technologies each one names. The figures on this page count the 71 postings of the last 12 months and were updated on Oct 23, 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, "Heldenrat tech stack: 113 technologies from 71 job postings", as of Oct 23, 2026. https://alion.io/company/heldenrat-gmbh/technologies