B2Bnetwork

IT Outsourcing & Dedicated Teams · Software Testing & QA
90open roles
44 daysmedian time a role stays open
Btruth index, 75 of 100
8cities with offices

Overview

B2Bnetwork (B2B.net S.A.) is a Warsaw-based IT outsourcing and software testing company that supplies IT engineers and whole teams to clients in data and analytics, cloud, cybersecurity, digital workplace and application development and maintenance. It operates from the Kopernik Office Buildings in Warsaw, runs QA, cloud, security and academy networks, organises ISTQB examinations, and places many specialists on projects for large banks, most visibly Nordea in Warsaw and Gdansk. Its postings cover Java and Python developers, test automation engineers, IT analysts, data engineers, solution architects, Scrum masters and project managers, largely on B2B contracts.

How B2Bnetwork hires

Truth index
B 75/100
Median time to fill
44 days
Ghost roles
0%
Stale roles
100%
Reposted roles
0%

B2Bnetwork scores B on the Alion truth index (A is best, E worst), measured over 3 open roles re-checked against its own hiring board: 0% look like ghost listings, 100% have gone stale and 0% are the same role posted again. Its roles close in a median of 44 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed

Jobs

Hybrid · Contractor · Warsaw
MS SQL
DevOps
Azure
Management
Agile
Scrum
Apply
Hybrid · Contractor · Warsaw
JavaScript
C#
.NET
AI/ML
Copilot
AI Agents
DevOps
Rest API
Azure DevOps
Azure
CI/CD
Apply
Hybrid · Contractor · Warsaw
Rest API
Apply
Hybrid · Contractor · Warsaw
Jira
Scrum
Apply
Hybrid · Contractor · Warsaw
SQL
ElasticSearch
Management
Confluence
Scrum
UML
Apply
Hybrid · Contractor · Warsaw
PowerShell
Copilot Studio
DevOps
Azure DevOps
Azure
CI/CD
GitHub
Cybersecurity
Microsoft Entra ID
DLP
Apply
Hybrid · Contractor · Warsaw
Python
Rest API
Management
Agile
Apply
Remote (Poland) · Contractor · Warsaw
Kotlin
JUnit
Jetpack Compose
Kotlin Multiplatform
Clean Architecture
Espresso
Management
Agile
Apply
Hybrid · Contractor · Warsaw
SQL
Apply
Hybrid · Contractor · Gdynia · Gdańsk · Warsaw
SQL
C#
.NET
DevOps
CI/CD
Git
Bamboo
Bitbucket
QA
Playwright
Apply
≈ $42k – $84k per year (Estimated) · Hybrid · Contractor · Warsaw
PHP
Magento
Apply
≈ $49k – $87k per year (Estimated) · Remote (Poland) · Contractor · Wrocław
Java
Spring Boot
Quarkus
Spring Security
Spring Cloud
GraalVM
Databases
Apache Iceberg
Apache Kafka
Frontend
GraphQL
DevOps
Prometheus
Grafana
Apply

Growth

Hiring Momentum
23/100
Hiring freeze
Open positions
104
0 opened / 0 closed in 30 days
Median time-to-fill
60 days
faster than 22% of the market
ATS activity
Every ~5 hours
11/09/2026
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.
Analytics
22% ▼
Backend
14%
QA
14%
DevOps
12% ▼
Management
9%
Security
8%
Actively hiring for Backend (+6 in 30 days)
Activity Timeline
+8 jobs in a week Oct 2026
Added Puppet to stack Sep 2026
Added Microsoft Teams to stack Sep 2026
Added JFrog Artifactory to stack Sep 2026
Added Chef to stack Sep 2026
Added AWX to stack Sep 2026
Added DLP to stack Sep 2026
Added Elixir to stack Sep 2026
Added Kanban to stack Sep 2026
Added Agile to stack Sep 2026
Added Scrum to stack Sep 2026
Added Dimensional Modeling to stack Sep 2026

Products

Team Sourcing
Assembly of several contractors at once for a client project. The agency handles contracting and coordination.
b2bnetwork.pl
Permanent Placement
Sourcing and screening candidates for employment contracts with client companies. It covers engineering and management roles.
b2bnetwork.pl
Contractor Recruitment
Placement of technology specialists on business-to-business contracts. It is the agency's primary service.
b2bnetwork.pl

Tech stack

Technologies named in job postings at B2Bnetwork over the last 12 months, by layer, with the share of postings for each.
Technologies in use
281
Postings analysed
253
Stack modernity
80/100AI adopter
Languages
SQL45%
Python27%
Java27%
JavaScript15%
TypeScript12%
C#6%
PowerShell5%
Bash4%
Frameworks & libraries
Spring Boot11%
Angular9%
Selenium9%
Playwright6%
JUnit6%
Robot Framework6%
React.js6%
Hadoop4%
Databases
PostgreSQL8%
MS SQL7%
Snowflake6%
Db25%
Google BigQuery3%
Oracle3%
Apache Iceberg2%
ElasticSearch2%
Cloud & platforms
Apache Kafka24%
Kubernetes24%
GCP15%
Azure13%
Grafana12%
Linux12%
AWS10%
GitLab8%
Developer tools
Rest API26%
Jenkins23%
Git21%
Docker21%
Prometheus9%
Ansible8%
Maven8%
Terraform7%
AI & ML
LLM8%
Claude1%
ChatGPT<1%
Practices & domains
CI/CD42%
ETL/ELT10%
SOAP9%
IAM5%
Machine Learning5%
AI Agents4%
DNS2%
RAG2%
Other
VSAM<1%
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News

Blog 6 years ago
How to choose the right IT outsourcing company?
The history of outsourcing is longer than we might think. The first mention of this form of business cooperation dates back to the late 1970s. However, no one will be surprised that before it was written about, it was already used in the USA in the middle
Read more
Report
Blog 6 years ago
How to choose the best testing company for the project?
If you are reading this article, you are probably wondering whether to take advantage of test outsourcing or how to choose the best testing company? Knowing, that the product is properly tested, allows Product Owners or Sponsors to sleep in peace. Testing
Read more
Report
Blog 6 years ago
Work wisely, not hard - automation of regression tests
When we create an application we care about its stability and proper functioning. Equally important is the continuous development of the project with new functionalities. However, regular updates in the software, in addition to new features, may bring new
Read more
Report
Blog 6 years ago
Top 10 Frequently Asked Questions about the ISTQB Exam
There is so much content about the ISTQB exam that it would seem everything has already been written or said. Despite this, I still get questions on this subject. That is why in this article I would like to answer the 10 most frequently asked questions. 1
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Report
Blog 6 years ago
ISTQB exams during coronavirus
From April 27, 2020 ISTQB made it possible to take exams remotely. What is the procedure? Should you be worried? What are the technical requirements? I will try to answer all the questions in the article below. Let's start from the beginning, i.e. what is
Read more
Report
Blog 6 years ago
Relationship without relation - non-relational databases (NoSQL). Part 2 - individual types of non-relative databases.
As already described in Part 1 (available at: PART 1), non-relative databases can be divided into several categories (in terms of data model): The key ? value The document The graph The family of columns The following article provides a brief description
Read more
Report
Blog 6 years ago
Relationship without relation - non-relational databases (NoSQL). Part 1 - general characteristics.
The following article is a general introduction to the subject of non-relative databases. The potential areas of application of NoSQL and their benefits are presented. Finally, individual data models are listed, which will be discussed in more detail in P
Read more
Report
Blog 6 years ago
There is no entry without permission - user authentication and authorization
There are two basic types of tokens: ?access tokens? ?ID tokens?. The identification token is JSON Web Tokens (JWTs), which should only be used by applications. For example, a fictional application using account authentication with a ready-made Google acc
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Report
Blog 6 years ago
How much is one second - performance tests
Have you ever wondered what one second means, what can happen in it and what effect it can have on our lives? For each of us, a second can mean something different. For an athlete, one second can be decisive in winning or breaking a record. Being late a s
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Report

Offices

Where the company hires and what each office is for
Cities
8
Hiring now
8
Countries
1
Busiest office
Warsaw
Loading the map
Headquarters Builds here Office with open vacancies Tap a pin for the office
Warsaw Poland
HQ
Contact us
24 open roles 46 posted in 90 days 75% engineering 13% remote
hires for Backend, Analytics, QA
seen since Jul 2026 company site, job postings
Gdańsk Poland
Regional office
10 open roles 18 posted in 90 days 60% engineering
hires for QA, Finance, Management
seen since Jul 2026 job postings
Gdynia Poland
Regional office
6 open roles 8 posted in 90 days 67% engineering
hires for QA, Finance, Data Science
seen since Aug 2026 job postings
Wrocław Poland
Remote hub
3 open roles 6 posted in 90 days 100% engineering 100% remote
hires for Data Science
seen since Aug 2026 job postings
Łódź Poland
Corporate office
3 open roles 3 posted in 90 days 33% engineering
hires for Finance, Data Science
seen since Oct 2026
Katowice Poland
2 open roles 5 posted in 90 days 100% engineering
hires for Backend
seen since Jul 2026
Kraków Poland
1 open roles 2 posted in 90 days 100% engineering
hires for Backend
seen since Jul 2026
Poznań Poland
1 open roles 1 posted in 90 days 100% engineering
hires for Backend
seen since Oct 2026 job postings
Earlier presence
Lublin, Poland 4 open roles · last posting Oct 2026
Płock, Poland 1 open roles · last posting Aug 2026