Ozon tech stack
Ozon builds mostly with SQL, Python, Go, C#. Its stack also includes PostgreSQL, Apache Kafka, ClickHouse, Kubernetes. SQL is named in 125 of the 256 job postings Ozon published in the last 12 months (49%). Counted by Alion from the job postings of Ozon, updated Sep 27, 2026.
What programming languages does Ozon use?
SQL is named in 49% of job postings at Ozon, followed by Python (48%), Go (12%), C# (9%).
C# 
1C 
Show all (14)
What frameworks and libraries does Ozon use?
Hadoop is named in 7% of job postings at Ozon, followed by Pytest (6%), NumPy (5%), PyTorch (4%).
Hadoop
18 7%
Pytest
15 6%
NumPy
12 5%
PyTorch
10 4%
CatBoost
8 3%
LangChain
7 3%
Transformers
6 2%
Show all (62)
And 22 more, each named in fewer postings.
What databases does Ozon use?
PostgreSQL is named in 34% of job postings at Ozon, followed by ClickHouse (25%), Redis (14%), Vertica (13%).
PostgreSQL
87 34%
ClickHouse
65 25%
Redis
35 14%
Vertica
33 13%
MS SQL
7 3%
Memcached
7 3%
ElasticSearch
6 2%
Trino
5 2%
Show all (14)
What cloud and platforms does Ozon use?
Apache Kafka is named in 31% of job postings at Ozon, followed by Kubernetes (23%), Grafana (15%), GitLab CI (13%).
Apache Kafka
79 31%
Kubernetes
60 23%
Grafana
38 15%
GitLab CI
34 13%
GitLab
25 10%
Show all (39)
What developer tools does Ozon use?
gRPC is named in 22% of job postings at Ozon, followed by Docker (17%), Git (15%), Prometheus (10%).
Show all (41)
And 1 more, each named in fewer postings.
What AI and ML technologies does Ozon use?
LLM is named in 7% of job postings at Ozon, followed by Qwen (<1%), ChatGPT (<1%), Claude (<1%).
Which engineering practices does Ozon ask for?
CI/CD is named in 18% of job postings at Ozon, followed by ETL/ELT (7%), Machine Learning (7%), AI Agents (4%).
CI/CD
45 18%
AI Agents
10 4%
RAG
10 4%
NLP
8 3%
SLI/SLO/SLA
6 2%
Show all (27)
What other technologies does Ozon use?
Kotlin Coroutines is named in 1% of job postings at Ozon.
Kotlin Coroutines
2 1%
What does each Ozon team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
58 postingsAnalytics
44 postingsQA
34 postingsSupport
26 postingsData Science
22 postingsProduct
13 postingsHow does your stack fit Ozon?
How modern is the Ozon stack?
Ozon scores 84 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: 5; legacy ones: 0.
How common is the Ozon stack in its industry?
Share of the 603 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Ozon apart
Companies with a stack like Ozon
Questions about the Ozon tech stack
What programming languages does Ozon use?
The languages named in Ozon job postings are SQL (49%), Python (48%), Go (12%), C# (9%), TypeScript (7%), as a share of the 256 postings of the last 12 months.
Does Ozon use Hadoop?
Yes. Hadoop is named in 18 of 256 job postings (7%) and required in 12 of them.
What cloud and platforms does Ozon use?
The cloud and platforms named in Ozon job postings are Apache Kafka (79), Kubernetes (60), Grafana (38) (postings in brackets).
What skills do you need for a Backend job at Ozon?
Backend postings at Ozon most often require PostgreSQL (32), Apache Kafka (30), SQL (23), Go (20), out of 58 postings in the last 12 months.
Is the Ozon tech stack changing?
No new technology has appeared in Ozon job postings in the last six months.
How modern is the Ozon tech stack?
Ozon scores 84 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: 5; legacy ones: 0.
How does Alion know the Ozon tech stack?
Alion reads every job posting Ozon publishes and tags the technologies each one names. The figures on this page count the 256 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, "Ozon tech stack: 203 technologies from 256 job postings", as of Sep 27, 2026. https://alion.io/company/ozon/technologies