Overview
News
Technologies
Salaries
Products
People
Growth
Jobs
Financials
Overview
j-labs is a Polish IT consultancy and software delivery center headquartered in Kraków that specializes in custom software development and IT outsourcing. Founded by software engineers, the company provides IT staff augmentation, dedicated engineering teams, and end-to-end project execution for international clients across industries like fintech, logistics, and retail. It focuses on core technology stacks such as Java, .NET, cloud, and microservices, emphasizing high engineering standards and collaborative client partnerships.
Technologies
Tech DNA
Java
JavaScript
SQL
Spring Boot
React.js
React Native
PostgreSQL
Redis
ElasticSearch
GCP
AWS
Azure
LLM
Claude
Gemini
Backend
Java
Kotlin
C#
Clojure
Rust
Node JS
Groovy
Go
Apache Kafka
Spring Boot
Rest API
.NET
Hibernate
Spring Cloud
Nest.JS
RabbitMQ
Mockito
Spring Framework
Maven
Testcontainers
GraphQL
AI/ML
SQL
Python
Scala
CI/CD
GCP
Kubernetes
AWS
PostgreSQL
Terraform
Docker
Azure
Jenkins
LLM
Copilot
Redis
Grafana
Prometheus
Ansible
OpenTelemetry
GitHub
Claude
Git
AWS Lambda
ElasticSearch
Google GKE
Helm
SLI/SLO/SLA
Platform Engineering
AWS Fargate
IAM
Amazon ECS
NLP
Flink
Claude Code
Gemini
AI Agents
OpenAI Codex
MySQL
Oracle
Snowflake
Google Bigtable
Amazon Aurora
Istio
Loki
Service Mesh
Kustomize
Amazon EC2
Amazon EKS
ArgoCD
GitOps
Amazon CloudWatch
Cursor
Airflow
Hadoop
Spark
Google ADK
LangChain
LangGraph
Llama
Mistral
PyTorch
RAG
Scikit-learn
TensorFlow
Prompt Engineering
LLMOps
LLM Guardrails
Function Calling
QA
JavaScript
TypeScript
Selenium
Jest
Cucumber
Postman
Appium
JMeter
Playwright
Other
Bash
React.js
React Native
Jira
JUnit
Angular
Confluence
GDPR
Salesforce
Renovate
Next.js
Power BI
Stack modernity
88/100
How modern this stack is, based on technology relevance, AI adoption and the share of legacy tools.
In-demand technologies
Java
21 job
Required
$96k
-40% vs market
CI/CD
20 jobs
Required
$96k
-40% vs market
GCP
16 jobs
Required
$102k
-46% vs market
Kubernetes
15 jobs
Required
$97k
-46% vs market
JavaScript
15 jobs
Required
$96k
-40% vs market
AWS
15 jobs
Required
$96k
-48% vs market
Apache Kafka
15 jobs
Required
$96k
-36% vs market
Spring Boot
13 jobs
Required
$94k
-23% vs market
Salary medians are calculated from this company's open jobs and compared with the market.
Industry adoption
Python
28%
SQL
26%
JavaScript
25%
CI/CD
25%
AWS
21%
Docker
21%
Share of companies in the same industry that use each technology.
Stack changes
Amazon CloudWatch
Aug 2026
OpenAI Codex
Aug 2026
Amazon ECS
Aug 2026
GitHub
Aug 2026
IAM
Aug 2026
Function Calling
Aug 2026
AI Agents
Aug 2026
LLM Guardrails
Aug 2026
Technologies recently added to or removed from this company's stack - a signal of tech migrations and new initiatives.
Salary insights
Compensation ranges based on this company's open jobs
Median
$96k
Typical range
$12k – $122k
Open positions
39
28
Jobs
Senior
85.7%
Staff
10.7%
Principal
3.6%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Senior | 24 | $96k | $12k – $112k |
| Staff | 3 | $106k | $102k – $106k |
| Principal | 1 | $122k | $122k |
Highest paying role
Principal DevOps Engineer
$122k
Normalized to USD per year
Growth
Hiring Momentum
58/100
Growing
Open positions
40
0 opened / 0 closed in 30 days
ATS activity
Every ~12 hours
08/31/2026
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
55% ▼
AI/ML
11%
Mobile
9% ▲
QA
9% ▲
Data Science
7%
DevOps
7% ▼
Activity Timeline
Added Go to stack
Aug 2026
Added GitOps to stack
Aug 2026
Added ArgoCD to stack
Aug 2026
Added Amazon EKS to stack
Aug 2026
Added Amazon EC2 to stack
Aug 2026
Added Amazon Aurora to stack
Aug 2026
Added Renovate to stack
Aug 2026
Added Prompt Engineering to stack
Jul 2026
Added Kustomize to stack
Jul 2026
Added Groovy to stack
Jul 2026
Added Google Bigtable to stack
Jul 2026
Added TensorFlow to stack
Jul 2026
Jobs
Senior QA Automation Engineer
11 days ago$80k – $96k per year • Remote • Full-Time • Kraków
JavaScript
React.js
Mobile
React Native
Apply
Principal DevOps Engineer
12 days ago$96k – $124k per year • Remote • Full-Time • Kraków
Go
Java
Kotlin
Python
C#
Hibernate
C#
.NET
Databases
Amazon Aurora
Apache Kafka
DevOps
Amazon EC2
Amazon EKS
ArgoCD
AWS
Azure
CI/CD
Docker
GitOps
Grafana
Kubernetes
OpenTelemetry
Platform Engineering
Prometheus
SLI/SLO/SLA
Terraform
Amazon CloudWatch
IAM
Apply
QA Automation Engineer (Mobile)
22 days ago$64k – $80k per year • Remote • Full-Time • Kraków
JavaScript
React.js
Mobile
React Native
Apply
Java Developer (Java 21, Spring Boot, AI)
23 days ago$54k – $70k per year • In office • Full-Time • Kraków
Java
Spring Boot
Databases
Apache Kafka
ElasticSearch
AI/ML
Claude
Claude Code
Copilot
DevOps
CI/CD
Git
Jenkins
Kubernetes
GitHub
Cybersecurity
Renovate
Apply
Engineering Tech Lead (Java | AI & LLM)
1 month ago≈ $71k – $137k per year (Estimated) • In office • Kraków
Java
Kotlin
C#
JavaScript
Hibernate
Spring Boot
C#
.NET
Databases
Apache Kafka
PostgreSQL
Redis
AI/ML
LLM
Prompt Engineering
LLM Guardrails
AI Agents
Function Calling
Frontend
React.js
DevOps
AWS
Azure
CI/CD
Docker
GCP
Helm
Kubernetes
Kustomize
Terraform
Apply
Data Engineer (Java+cloud)
1 month ago$80k – $96k per year • In office • Full-Time • Kraków
Groovy
Java
Spring Boot
Databases
Apache Kafka
Google Bigtable
PostgreSQL
DevOps
AWS Lambda
CI/CD
Docker
GCP
Grafana
Jenkins
Kubernetes
OpenTelemetry
Prometheus
Rest API
Terraform
AWS
Apply
Senior Java Developer (Python, AI/NLP)
1 month ago$86k – $102k per year • In office • Full-Time • Kraków
Clojure
JavaScript
Kotlin
Python
SQL
Apache Kafka
PostgreSQL
AI/ML
NLP
DevOps
CI/CD
Apply
Senior React Native Developer
1 month ago$86k – $102k per year • Remote • Full-Time • Kraków
JavaScript
TypeScript
React.js
Mobile
React Native
Apply
React Native Developer
1 month ago$64k – $80k per year • Remote • Full-Time • Kraków
JavaScript
TypeScript
React.js
Mobile
React Native
Apply
Angular Developer | Greenfield | Zdalnie
1 month ago$80k – $96k per year • Remote • Full-Time • Kraków
JavaScript
TypeScript
Angular
DevOps
CI/CD
Apply
Senior AI/ML Python Engineer
1 month ago$102k – $112k per year • In office • Full-Time • Kraków
Python
Claude
Gemini
Google ADK
LangChain
LangGraph
Llama
LLM
Mistral
PyTorch
RAG
Scikit-learn
TensorFlow
LLMOps
DevOps
AWS
Azure
CI/CD
Docker
GCP
Kubernetes
Apply
Expert Java/Kotlin Developer with GCP/AWS
1 month ago$86k – $96k per year • Remote • Full-Time • Kraków
Java
Kotlin
Copilot
OpenAI Codex
DevOps
AWS
AWS Fargate
AWS Lambda
CI/CD
GCP
Terraform
Amazon ECS
Cybersecurity
GDPR
Marketing
Salesforce
Apply
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