Allegro tech stack
Allegro builds mostly with Kotlin, Java, Python, SQL. Its stack also includes Windows, GitHub, Google BigQuery, React.js. Windows is named in 177 of the 206 job postings Allegro published in the last 12 months (86%). Counted by Alion from the job postings of Allegro, updated Nov 14, 2026.
What programming languages does Allegro use?
Kotlin is named in 34% of job postings at Allegro, followed by Java (34%), Python (30%), SQL (27%).
Kotlin
71 34%
Java
70 34%
Python
62 30%
SQL
55 27%
JavaScript
31 15%
TypeScript
27 13%
C#
19 9%
Scala
12 6%
Show all (14)
What frameworks and libraries does Allegro use?
React.js is named in 14% of job postings at Allegro, followed by Spring Boot (8%), Jetpack Compose (5%), Pandas (5%).
React.js
28 14%
Spring Boot
17 8%
Jetpack Compose
11 5%
Pandas
10 5%
Scikit-learn
10 5%
PyTorch
9 4%
FastAPI
6 3%
Combine
6 3%
Show all (42)
And 2 more, each named in fewer postings.
What databases does Allegro use?
Google BigQuery is named in 17% of job postings at Allegro, followed by PostgreSQL (6%), Snowflake (3%), Redis (2%).
Google BigQuery
36 17%
PostgreSQL
13 6%
Snowflake
6 3%
Redis
5 2%
Azure Cosmos DB
1 <1%
Couchbase
1 <1%
InfluxDB
1 <1%
Neo4j
1 <1%
What cloud and platforms does Allegro use?
Windows is named in 86% of job postings at Allegro, followed by GitHub (84%), Kubernetes (83%), GitHub Actions (81%).
GitHub
174 84%
Kubernetes
170 83%
GitHub Actions
166 81%
GCP
48 23%
Azure
31 15%
Apache Kafka
28 14%
Spark
23 11%
Show all (36)
What developer tools does Allegro use?
Docker is named in 82% of job postings at Allegro, followed by Consul (79%), Copilot (8%), Git (7%).
Docker
168 82%
Consul
163 79%
Copilot
17 8%
Git
14 7%
dbt
13 6%
Prometheus
10 5%
Rest API
9 4%
ArgoCD
7 3%
Show all (28)
What AI and ML technologies does Allegro use?
LLM is named in 7% of job postings at Allegro, followed by Gemini (2%), Claude (2%), ChatGPT (1%).
Which engineering practices does Allegro ask for?
Machine Learning is named in 84% of job postings at Allegro, followed by Service Mesh (77%), AI Agents (17%), CI/CD (15%).
Service Mesh
158 77%
AI Agents
36 17%
CI/CD
31 15%
Clean Architecture
10 5%
Time Series
10 5%
GitOps
9 4%
Show all (42)
And 2 more, each named in fewer postings.
What other technologies does Allegro use?
Kotlin Coroutines is named in 3% of job postings at Allegro, followed by Swift Concurrency (1%).
Kotlin Coroutines
6 3%
Swift Concurrency
3 1%
What does each Allegro team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
60 postingsProduct
35 postingsAnalytics
19 postingsData Science
18 postingsMobile
12 postingsSecurity
8 postingsHow does your stack fit Allegro?
How much does Allegro pay by technology?
Median stated pay of the postings that name each technology, against the median of all Allegro postings with stated pay: $67k across 55 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Windows | 55 | $67k | 0% |
| GitHub | 55 | $67k | 0% |
| Kubernetes | 55 | $67k | 0% |
| GitHub Actions | 55 | $67k | 0% |
| Kotlin | 39 | $67k | 0% |
| Java | 34 | $67k | 0% |
| Apache Kafka | 17 | $64k | −4% |
| GCP | 13 | $79k | +19% |
| JavaScript | 13 | $67k | 0% |
| React.js | 13 | $67k | 0% |
How is the Allegro 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 Allegro stack?
Allegro scores 82 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 common is the Allegro stack in its industry?
Share of the 1,463 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Allegro apart
Companies with a stack like Allegro
eBay
122 shared technologies
Deutsche Telekom Digital Labs
126 shared technologies
Sigma Software Group
127 shared technologies
UPS
116 shared technologies
T-Mobile
116 shared technologies
Algoleap
119 shared technologies
Business Integration Partners
131 shared technologies
GEICO
119 shared technologies
Questions about the Allegro tech stack
What programming languages does Allegro use?
The languages named in Allegro job postings are Kotlin (34%), Java (34%), Python (30%), SQL (27%), JavaScript (15%), as a share of the 206 postings of the last 12 months.
Does Allegro use React.js?
Yes. React.js is named in 28 of 206 job postings (14%) and required in 26 of them.
What cloud and platforms does Allegro use?
The cloud and platforms named in Allegro job postings are Windows (177), GitHub (174), Kubernetes (170) (postings in brackets).
What skills do you need for a Backend job at Allegro?
Backend postings at Allegro most often require Kotlin (45), Java (41), Kubernetes (35), Windows (34), out of 60 postings in the last 12 months.
Is the Allegro tech stack changing?
No new technology has appeared in Allegro job postings in the last six months.
How modern is the Allegro tech stack?
Allegro scores 82 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 Allegro tech stack?
Alion reads every job posting Allegro publishes and tags the technologies each one names. The figures on this page count the 206 postings of the last 12 months and were updated on Nov 14, 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, "Allegro tech stack: 176 technologies from 206 job postings", as of Nov 14, 2026. https://alion.io/company/allegro-eu/technologies