Openbank tech stack

Openbank builds mostly with Python, SQL, Java, Kotlin. Its stack also includes Apache Kafka, Grafana, PostgreSQL, Redis. Apache Kafka is named in 5 of the 13 job postings Openbank published in the last 12 months (38%). Counted by Alion from the job postings of Openbank, updated Oct 16, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Oct 16, 2026
Technologies in use
62
Postings analysed
13
Open now
4
Modernity
77 /100

What programming languages does Openbank use?

Python is named in 31% of job postings at Openbank, followed by SQL (31%), Java (23%), Kotlin (23%).

Python 4 31% required in 100% · 1 open now · since Aug 2026
SQL 4 31% required in 50% · 2 open now · since Sep 2026
Java 3 23% required in 100% · 1 open now · since Aug 2026
Kotlin 3 23% required in 33% · 1 open now · since Aug 2026
Go 2 15% required in 100% · since Sep 2026
Bash 1 8% required in 100% · since Aug 2026
JavaScript 1 8% required in 100% · since Aug 2026

What frameworks and libraries does Openbank use?

JUnit is named in 23% of job postings at Openbank, followed by Mockito (23%), Spring Boot (23%), Spring Cloud (23%).

JUnit 3 23% required in 100% · 1 open now · since Aug 2026
Mockito 3 23% required in 100% · 1 open now · since Aug 2026
Spring Boot 3 23% required in 100% · 1 open now · since Aug 2026
Spring Cloud 3 23% required in 100% · 1 open now · since Aug 2026
LangGraph 2 15% required in 100% · since Sep 2026
MapStruct 2 15% required in 100% · since Aug 2026
Pandas 2 15% required in 100% · since Sep 2026
PyTorch 2 15% required in 100% · since Sep 2026
Show all (16)
Resilience4j2
LangChain2
AssertJ1
Matplotlib1
NumPy1
RxJava1
Seaborn1
Testcontainers1

What databases does Openbank use?

PostgreSQL is named in 23% of job postings at Openbank, followed by Redis (23%), Greenplum (8%), MS SQL (8%).

PostgreSQL 3 23% required in 100% · 1 open now · since Aug 2026
Redis 3 23% required in 67% · 1 open now · since Aug 2026
Greenplum 1 8% required in 100% · 1 open now · since Sep 2026
MS SQL 1 8% required in 100% · 1 open now · since Sep 2026

What cloud and platforms does Openbank use?

Apache Kafka is named in 38% of job postings at Openbank, followed by Grafana (31%), Linux (23%), Figma (15%).

Apache Kafka 5 38% required in 60% · 1 open now · since Aug 2026
Grafana 4 31% required in 50% · since Aug 2026
Linux 3 23% required in 100% · since Aug 2026
Figma 2 15% required in 100% · since Sep 2026
Langfuse 2 15% required in 100% · since Sep 2026
Postman 2 15% optional · since Sep 2026
API Gateway 1 8% required in 100% · 1 open now · since Oct 2026
Checkmarx 1 8% required in 100% · since Aug 2026
Show all (15)
Kubernetes1
Metabase1
Power BI1
SIEM1
SonarQube1
Superset1
Apache Pulsar1

What developer tools does Openbank use?

Docker is named in 46% of job postings at Openbank, followed by Git (31%), gRPC (31%), Google ADK (15%).

Docker 6 46% required in 100% · 1 open now · since Aug 2026
Git 4 31% required in 100% · 2 open now · since Aug 2026
gRPC 4 31% required in 100% · since Aug 2026
Google ADK 2 15% required in 100% · since Sep 2026
Keycloak 2 15% required in 100% · since Aug 2026
Liquibase 2 15% required in 100% · since Aug 2026
Prometheus 2 15% required in 100% · since Aug 2026
Swagger 2 15% optional · since Sep 2026
Show all (10)
OWASP ZAP1
dbt1

What AI and ML technologies does Openbank use?

LLM is named in 15% of job postings at Openbank.

LLM 2 15% required in 100% · since Sep 2026

Which engineering practices does Openbank ask for?

CI/CD is named in 31% of job postings at Openbank, followed by AI Agents (15%), Clean Architecture (15%), RAG (15%).

CI/CD 4 31% required in 100% · 1 open now · since Aug 2026
AI Agents 2 15% required in 100% · since Sep 2026
Clean Architecture 2 15% required in 100% · since Aug 2026
RAG 2 15% required in 100% · since Sep 2026
Fine-tuning 2 15% optional · since Sep 2026
DNS 1 8% required in 100% · since Aug 2026
ETL/ELT 1 8% required in 100% · 1 open now · since Sep 2026
SLI/SLO/SLA 1 8% required in 100% · 1 open now · since Oct 2026
Show all (9)
TCP/IP1

What does each Openbank team work with?

The technologies each team's postings require most often, with the number of postings that require them.

Backend

3 postings
Apache Kafka3
Docker3
Git3
JUnit3
Java3
Mockito3

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How modern is the Openbank stack?

Cutting-edge AI adopter 77/100

Openbank scores 77 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: 1; legacy ones: 0.

How common is the Openbank stack in its industry?

Share of the 1,005 companies in the same industries, whose stack Alion knows, that use each technology.

Apache Kafka30%
Grafana24%
Python57%
SQL65%
JUnit10%
Java38%
Kotlin17%
Linux34%
Mockito6%
PostgreSQL34%

Questions about the Openbank tech stack

What programming languages does Openbank use?

The languages named in Openbank job postings are Python (31%), SQL (31%), Java (23%), Kotlin (23%), Go (15%), as a share of the 13 postings of the last 12 months.

Does Openbank use JUnit?

Yes. JUnit is named in 3 of 13 job postings (23%) and required in 3 of them.

What cloud and platforms does Openbank use?

The cloud and platforms named in Openbank job postings are Apache Kafka (5), Grafana (4), Linux (3) (postings in brackets).

What skills do you need for a Backend job at Openbank?

Backend postings at Openbank most often require Apache Kafka (3), Docker (3), Git (3), JUnit (3), out of 3 postings in the last 12 months.

Is the Openbank tech stack changing?

No new technology has appeared in Openbank job postings in the last six months.

How modern is the Openbank tech stack?

Openbank scores 77 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: 1; legacy ones: 0.

How does Alion know the Openbank tech stack?

Alion reads every job posting Openbank publishes and tags the technologies each one names. The figures on this page count the 13 postings of the last 12 months and were updated on Oct 16, 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, "Openbank tech stack: 62 technologies from 13 job postings", as of Oct 16, 2026. https://alion.io/company/open-bank-aj/technologies

Licence: CC BY-SA 4.0JSON