Atlassian tech stack
Atlassian builds mostly with JavaScript, Python, Java, Kotlin. Its stack also includes AWS, React.js, Azure, Jest. AWS is named in 10 of the 16 job postings Atlassian published in the last 12 months (63%). Counted by Alion from the job postings of Atlassian, updated Sep 27, 2026.
What programming languages does Atlassian use?
JavaScript is named in 56% of job postings at Atlassian, followed by Python (44%), Java (31%), Kotlin (25%).
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What frameworks and libraries does Atlassian use?
React.js is named in 44% of job postings at Atlassian, followed by Jest (25%), Mocha (25%), Vue.js (19%).
What databases does Atlassian use?
DynamoDB is named in 19% of job postings at Atlassian, followed by Cassandra (13%), Oracle (13%), PostgreSQL (13%).
DynamoDB
3 19%
Cassandra
2 13%
Oracle
2 13%
PostgreSQL
2 13%
Apache Iceberg
1 6%
Azure SQL Database
1 6%
Delta Lake
1 6%
What cloud and platforms does Atlassian use?
AWS is named in 63% of job postings at Atlassian, followed by Azure (31%), GCP (31%), Databricks (13%).
AWS
10 63%
Azure
5 31%
GCP
5 31%
Databricks
2 13%
.NET
1 6%
Airflow
1 6%
Amazon EC2
1 6%
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What developer tools does Atlassian use?
Rest API is named in 19% of job postings at Atlassian, followed by Docker (13%), Git (6%), Nginx (6%).
What AI and ML technologies does Atlassian use?
LLM is named in 6% of job postings at Atlassian.
LLM
1 6%
Which engineering practices does Atlassian ask for?
CI/CD is named in 25% of job postings at Atlassian, followed by ETL/ELT (13%), A/B Testing (13%), AI Agents (6%).
CI/CD
4 25%
AI Agents
1 6%
Anomaly Detection
1 6%
Embeddings
1 6%
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What does each Atlassian team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
8 postingsFrontend
3 postingsHow does your stack fit Atlassian?
How is the Atlassian 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 Atlassian stack?
Atlassian scores 79 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 Atlassian stack in its industry?
Share of the 283 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Atlassian apart
Atlassian products in its job postings
Postings at Atlassian name its own products. They describe what the company makes, so they are left out of the stack above.
Companies with a stack like Atlassian
Questions about the Atlassian tech stack
What programming languages does Atlassian use?
The languages named in Atlassian job postings are JavaScript (56%), Python (44%), Java (31%), Kotlin (25%), Scala (25%), as a share of the 16 postings of the last 12 months.
Does Atlassian use React.js?
Yes. React.js is named in 7 of 16 job postings (44%) and required in 7 of them.
What cloud and platforms does Atlassian use?
The cloud and platforms named in Atlassian job postings are AWS (10), Azure (5), GCP (5) (postings in brackets).
What skills do you need for a Backend job at Atlassian?
Backend postings at Atlassian most often require AWS (6), Java (4), Kotlin (4), React.js (4), out of 8 postings in the last 12 months.
Is the Atlassian tech stack changing?
Yes. JavaScript, React.js, Kotlin, Scala first appeared in Atlassian job postings in the last six months.
How modern is the Atlassian tech stack?
Atlassian scores 79 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 Atlassian tech stack?
Alion reads every job posting Atlassian publishes and tags the technologies each one names. The figures on this page count the 16 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, "Atlassian tech stack: 62 technologies from 16 job postings", as of Sep 27, 2026. https://alion.io/company/atlassian/technologies