Gran tech stack

Gran builds mostly with Java, SQL, C++, Python. Its stack also includes Apache Kafka, Kubernetes, PostgreSQL, Spring Boot. Java is named in 3 of the 5 job postings Gran published in the last 12 months (60%). Counted by Alion from the job postings of Gran, updated Oct 31, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Oct 31, 2026
Technologies in use
32
Postings analysed
5
Open now
1
Modernity
86 /100

What programming languages does Gran use?

Java is named in 60% of job postings at Gran, followed by SQL (40%), C++ (20%), Python (20%).

Java 3 60% required in 67% · 1 open now · since Aug 2026
SQL 2 40% required in 100% · since Aug 2026
C++ 1 20% required in 100% · 1 open now · since Oct 2026
Python 1 20% required in 100% · 1 open now · since Oct 2026
C 1 20% optional · 1 open now · since Oct 2026

What frameworks and libraries does Gran use?

Spring Boot is named in 40% of job postings at Gran, followed by Spring Cloud (40%), Asyncio (20%), Pytest (20%).

Spring Boot 2 40% required in 100% · since Aug 2026
Spring Cloud 2 40% required in 100% · since Aug 2026
Asyncio 1 20% required in 100% · 1 open now · since Oct 2026
Pytest 1 20% required in 100% · 1 open now · since Oct 2026
FFmpeg 1 20% optional · 1 open now · since Oct 2026
Kaldi 1 20% optional · 1 open now · since Oct 2026

What databases does Gran use?

PostgreSQL is named in 60% of job postings at Gran, followed by ClickHouse (20%), Redis (20%).

PostgreSQL 3 60% required in 67% · 1 open now · since Aug 2026
ClickHouse 1 20% optional · 1 open now · since Oct 2026
Redis 1 20% optional · 1 open now · since Oct 2026

What cloud and platforms does Gran use?

Apache Kafka is named in 60% of job postings at Gran, followed by Kubernetes (60%), Figma (40%), RabbitMQ (40%).

Apache Kafka 3 60% required in 100% · 1 open now · since Aug 2026
Kubernetes 3 60% required in 67% · 1 open now · since Aug 2026
Figma 2 40% required in 100% · since Aug 2026
RabbitMQ 2 40% required in 100% · since Aug 2026
Amazon S3 1 20% optional · 1 open now · since Oct 2026
Grafana 1 20% optional · 1 open now · since Oct 2026

What developer tools does Gran use?

Docker is named in 60% of job postings at Gran, followed by Git (20%), Protobuf (20%), MinIO (20%).

Docker 3 60% required in 100% · 1 open now · since Aug 2026
Git 1 20% required in 100% · 1 open now · since Oct 2026
Protobuf 1 20% required in 100% · 1 open now · since Oct 2026
MinIO 1 20% optional · 1 open now · since Oct 2026
Prometheus 1 20% optional · 1 open now · since Oct 2026
Rest API 1 20% optional · 1 open now · since Oct 2026
gRPC 1 20% optional · 1 open now · since Oct 2026

What AI and ML technologies does Gran use?

Whisper is named in 60% of job postings at Gran, followed by LLM (40%).

Whisper 3 60% optional · 1 open now · since Aug 2026
LLM 2 40% optional · since Aug 2026

Which engineering practices does Gran ask for?

CI/CD is named in 60% of job postings at Gran, followed by Speech Recognition (40%), ETL/ELT (20%).

CI/CD 3 60% required in 100% · 1 open now · since Aug 2026
Speech Recognition 2 40% optional · since Aug 2026
ETL/ELT 1 20% required in 100% · 1 open now · since Oct 2026

What does each Gran 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
Java2
Kubernetes2
PostgreSQL2
RabbitMQ2

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How modern is the Gran stack?

Cutting-edge AI adopter 86/100

Gran scores 86 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: 2; legacy ones: 0.

How common is the Gran stack in its industry?

Share of the 689 companies in the same industries, whose stack Alion knows, that use each technology.

Apache Kafka13%
Java19%
Kubernetes21%
PostgreSQL22%
Whisper0%
Figma13%
LLM22%
RabbitMQ8%
SQL40%
Spring Boot9%

What sets Gran apart

Whisper0%

Questions about the Gran tech stack

What programming languages does Gran use?

The languages named in Gran job postings are Java (60%), SQL (40%), C++ (20%), Python (20%), C (20%), as a share of the 5 postings of the last 12 months.

Does Gran use Spring Boot?

Yes. Spring Boot is named in 2 of 5 job postings (40%) and required in 2 of them.

What cloud and platforms does Gran use?

The cloud and platforms named in Gran job postings are Apache Kafka (3), Kubernetes (3), Figma (2) (postings in brackets).

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

Backend postings at Gran most often require Apache Kafka (3), Docker (3), Java (2), Kubernetes (2), out of 3 postings in the last 12 months.

Is the Gran tech stack changing?

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

How modern is the Gran tech stack?

Gran scores 86 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: 2; legacy ones: 0.

How does Alion know the Gran tech stack?

Alion reads every job posting Gran publishes and tags the technologies each one names. The figures on this page count the 5 postings of the last 12 months and were updated on Oct 31, 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, "Gran tech stack: 32 technologies from 5 job postings", as of Oct 31, 2026. https://alion.io/company/gran/technologies

Licence: CC BY-SA 4.0JSON