Seznam.cz tech stack

Seznam.cz builds mostly with Python, SQL, Java, Scala. Its stack also includes Kubernetes, AppsFlyer SDK, Snowflake, Hadoop. Python is named in 6 of the 15 job postings Seznam.cz published in the last 12 months (40%). Counted by Alion from the job postings of Seznam.cz, updated Oct 13, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Oct 13, 2026
Technologies in use
53
Postings analysed
15
Open now
14
Modernity
79 /100
New in 6 months
8

What programming languages does Seznam.cz use?

Python is named in 40% of job postings at Seznam.cz, followed by SQL (27%), Java (13%), Scala (13%).

Python 6 40% required in 100% · 5 open now · since Oct 2025
SQL 4 27% required in 100% · 4 open now · since Oct 2025
Java 2 13% required in 100% · 1 open now · since Sep 2026
Scala 2 13% required in 100% · 1 open now · since Sep 2026
C++ 1 7% required in 100% · 1 open now · since Oct 2026
C 1 7% optional · 1 open now · since Oct 2026

What frameworks and libraries does Seznam.cz use?

Hadoop is named in 20% of job postings at Seznam.cz, followed by Dask (13%), NumPy (13%), Pandas (13%).

Hadoop 3 20% required in 100% · 2 open now · since Sep 2026
Dask 2 13% required in 100% · 2 open now · since Oct 2026
NumPy 2 13% required in 100% · 2 open now · since Oct 2026
Pandas 2 13% required in 100% · 2 open now · since Oct 2026
Polars 2 13% required in 100% · 2 open now · since Oct 2026
PyTorch 2 13% required in 100% · 2 open now · since Oct 2026
SciPy 2 13% required in 100% · 2 open now · since Oct 2026
CatBoost 1 7% required in 100% · 1 open now · since Oct 2026
Show all (14)
FastAPI1
Flask1
Pytest1
Seaborn1
libcurl1
Matplotlib1

What databases does Seznam.cz use?

Snowflake is named in 20% of job postings at Seznam.cz, followed by BigQuery (7%), Google BigQuery (7%).

Snowflake 3 20% required in 100% · 3 open now · since Oct 2025
BigQuery 1 7% required in 100% · 1 open now · since Oct 2025
Google BigQuery 1 7% required in 100% · 1 open now · since Oct 2025

What cloud and platforms does Seznam.cz use?

Kubernetes is named in 27% of job postings at Seznam.cz, followed by AppsFlyer SDK (20%), OneSignal SDK (20%), Tableau (20%).

Kubernetes 4 27% required in 100% · 3 open now · since Sep 2026
AppsFlyer SDK 3 20% required in 100% · 3 open now · since May 2026
OneSignal SDK 3 20% required in 100% · 3 open now · since May 2026
Tableau 3 20% required in 100% · 3 open now · since Oct 2025
Apache Kafka 2 13% required in 100% · 1 open now · since Sep 2026
Firebase 2 13% required in 100% · 2 open now · since May 2026
GCP 2 13% required in 100% · 2 open now · since May 2026
GitLab 2 13% required in 100% · 2 open now · since Oct 2026
Show all (13)
Spark2
Airflow1
Looker1
MLFlow1
Windows1

What developer tools does Seznam.cz use?

Claude Code is named in 20% of job postings at Seznam.cz, followed by Cursor (20%), Docker (20%), ArgoCD (13%).

Claude Code 3 20% required in 100% · 3 open now · since Oct 2026
Cursor 3 20% required in 100% · 3 open now · since Oct 2026
Docker 3 20% required in 100% · 3 open now · since Oct 2026
ArgoCD 2 13% required in 100% · 2 open now · since Oct 2026
Copilot 2 13% required in 100% · 2 open now · since Oct 2026
OpenStack 2 13% required in 100% · 2 open now · since Oct 2026
Prometheus 2 13% required in 100% · 2 open now · since Oct 2026
Adobe Premiere Pro 1 7% required in 100% · 1 open now · since Oct 2026
Show all (12)
DaVinci Resolve1
Git1
Semgrep1
gRPC1

What AI and ML technologies does Seznam.cz use?

LLM is named in 20% of job postings at Seznam.cz.

LLM 3 20% required in 100% · 3 open now · since Oct 2026

Which engineering practices does Seznam.cz ask for?

Machine Learning is named in 20% of job postings at Seznam.cz, followed by CI/CD (13%), Feature Store (7%), Text-to-Speech (7%).

Machine Learning 3 20% required in 100% · 3 open now · since Oct 2026
CI/CD 2 13% required in 100% · 2 open now · since Oct 2026
Feature Store 1 7% required in 100% · 1 open now · since Oct 2026
Text-to-Speech 1 7% required in 100% · 1 open now · since Oct 2026

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How is the Seznam.cz 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.

First appeared
DockerOct 2026
LLMOct 2026
ArgoCDOct 2026
CI/CDOct 2026
CopilotOct 2026
DaskOct 2026
GitLabOct 2026
NumPyOct 2026

How modern is the Seznam.cz stack?

Cutting-edge AI adopter 79/100

Seznam.cz 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 Seznam.cz stack in its industry?

Share of the 78 companies in the same industries, whose stack Alion knows, that use each technology.

Python56%
Kubernetes44%
SQL46%
AppsFlyer SDK10%
Hadoop12%
LLM38%
OneSignal SDK3%
Snowflake6%
Tableau17%
Apache Kafka27%

What sets Seznam.cz apart

OneSignal SDK3%

Questions about the Seznam.cz tech stack

What programming languages does Seznam.cz use?

The languages named in Seznam.cz job postings are Python (40%), SQL (27%), Java (13%), Scala (13%), C++ (7%), as a share of the 15 postings of the last 12 months.

Does Seznam.cz use Hadoop?

Yes. Hadoop is named in 3 of 15 job postings (20%) and required in 3 of them.

What cloud and platforms does Seznam.cz use?

The cloud and platforms named in Seznam.cz job postings are Kubernetes (4), AppsFlyer SDK (3), OneSignal SDK (3) (postings in brackets).

Is the Seznam.cz tech stack changing?

Yes. Docker, LLM, ArgoCD, CI/CD first appeared in Seznam.cz job postings in the last six months.

How modern is the Seznam.cz tech stack?

Seznam.cz 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 Seznam.cz tech stack?

Alion reads every job posting Seznam.cz publishes and tags the technologies each one names. The figures on this page count the 15 postings of the last 12 months and were updated on Oct 13, 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, "Seznam.cz tech stack: 53 technologies from 15 job postings", as of Oct 13, 2026. https://alion.io/company/seznam-cz/technologies

Licence: CC BY-SA 4.0JSON