Overview
Technologies
Salaries
Products
People
Growth
Offices
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.

Tech stack

Technologies named in job postings at j-labs over the last 12 months, by layer, with the share of postings for each.
Technologies in use
118
Postings analysed
48
Stack modernity
88/100AI adopter
Languages
Java56%
JavaScript33%
SQL33%
TypeScript29%
Kotlin29%
C#21%
Python19%
Bash6%
Frameworks & libraries
Spring Boot33%
React.js19%
Hibernate15%
OpenTelemetry10%
React Native10%
Selenium8%
Angular6%
JUnit6%
Databases
PostgreSQL35%
Redis8%
ElasticSearch6%
Google Bigtable4%
Amazon Aurora2%
Google BigQuery2%
MySQL2%
Oracle2%
Cloud & platforms
AWS42%
GCP42%
Kubernetes42%
Apache Kafka38%
Azure27%
.NET21%
Grafana10%
AWS Lambda8%
Developer tools
Docker33%
Terraform33%
Rest API27%
Jenkins21%
Copilot13%
Ansible10%
Prometheus10%
Git6%
AI & ML
LLM15%
Claude10%
Gemini6%
Llama2%
Mistral2%
Practices & domains
CI/CD48%
AI Agents6%
Platform Engineering6%
Machine Learning4%
NLP4%
SLI/SLO/SLA4%
IAM4%
Function Calling2%
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Salary insights

Compensation ranges based on this company's open jobs
Median
$92k
Typical range
$88k – $100k
Open positions
4
4 Jobs
Senior 75%
Staff 25%
Level Jobs Median Typical range
Senior 3 $88k $88k – $100k
Staff 1 $96k $96k
Highest paying role Senior DevOps Engineer $100k
Normalized to USD per year

Growth

Hiring Momentum
13/100
Hiring freeze
Open positions
4
0 opened / 13 closed in 30 days
Median time-to-fill
60 days
faster than 23% of the market
ATS activity
Every ~4 hours
10/24/2026
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
30% ▼
AI/ML
15% ▼
QA
15% ▲
Data Science
10% ▼
Mobile
10% ▼
DevOps
10% ▲
Activity Timeline
Added SOAP to stack Sep 2026
Added OWASP to stack Sep 2026
Added Linux to stack Sep 2026
Added Machine Learning to stack Sep 2026
Added Scrum to stack Sep 2026
Added Agile to stack Sep 2026
Added Amazon CloudWatch to stack Aug 2026
Added OpenAI Codex to stack Aug 2026
Added Amazon ECS to stack Aug 2026
Added GitHub to stack Aug 2026
Added IAM to stack Aug 2026
Added Function Calling to stack Aug 2026

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Kraków
Kraków Poland
HQ
1 open roles 18 posted in 90 days 100% engineering 10-50 est. staff $88k Avg Salary
hires for QA
seen since Jul 2026 company site, job postings

Jobs

$82k – $96k per year • In office • Contractor • Kraków
Java
TypeScript
Spring Framework
DevOps
Rest API
WebSockets
Docker
Kubernetes
Management
Confluence
Agile
Scrum
BPMN
QA
Swagger
Jest
Apply
$76k – $86k per year • In office • Contractor • Kraków
JavaScript
TypeScript
Node JS
PostgreSQL
AI/ML
Model Context Protocol
AI Agents
LLM
DevOps
Platform Engineering
Apply
$82k – $100k per year • Hybrid • Contractor • Kraków
Python
Java
SQL
Bash
Groovy
Spring Boot
Databases
PostgreSQL
ElasticSearch
Google BigQuery
AI/ML
Hadoop
Vertex AI
DevOps
Rest API
Terraform
Ansible
GCP
Red Hat
GitLab CI
Azure
CI/CD
Jenkins
AWS
Kubernetes
Google GKE
Linux
Apply
$72k – $86k per year • In office • Contractor • Kraków
Java
Kotlin
SQL
OkHttp
DevOps
Rest API
QA
Selenium
Rest-Assured
k6
Apply