1,563,852open jobs
94,177companies
239,231added this week
Browse all
Salary
$41k – $51k per year
Location
In office (Kraków)
Employment
Contractor

First seen by Alion on Sep 22, 2026. Infolet scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Infolet is a Polish IT services company based in Kraków that delivers software projects through several outsourcing models, from end-to-end software development to IT team leasing, alongside IT recruitment, HR outsourcing and residence and work permit support for foreign specialists. Operating since 2005, it places developers, testers and engineers on projects for large technology companies in Poland and Europe, working mainly in Java, embedded C, C++ and JavaScript. Its openings, typically for client projects, cover Java and C++ developers, DevOps, SRE and cloud engineers, QA automation engineers, system administrators and technical project managers.

PROJECT

Join the Next Generation System Management (NGSM) team developing a modern network management platform for mission-critical radio systems.

As a Backend Engineer, you will design and develop scalable backend services and microservices, contribute to architectural decisions, and ensure high performance, reliability, and maintainability of distributed systems.

YOU WILL

  • Design, develop, and maintain backend services and microservices using Java 21+ and Spring
  • Contribute to architecture and technical design decisions for distributed systems
  • Build and orchestrate microservices running in Kubernetes and cloud environments
  • Develop event-driven solutions using Kafka and Azure Event Hubs
  • Design, manage, and optimise PostgreSQL databases
  • Improve application performance, scalability, reliability, and resource utilisation
  • Troubleshoot complex backend, networking, performance, and orchestration issues
  • Work with Azure, Kubernetes, Linux, Git, and GitHub
  • Use GitHub Copilot and Google Gemini as part of the daily software development workflow
  • Maintain high standards of clean code, testing, and software engineering practices
  • Participate in technical discussions, code reviews, and architectural improvements
  • Collaborate with other engineers in an Agile environment


Kogo poszukujemy?

MUST HAVE

  • Strong commercial experience with Java, preferably Java 21+
  • Very good knowledge of Spring / Spring Boot
  • Strong understanding of OOP, clean code, and software engineering principles
  • Experience designing and developing microservices and distributed systems
  • Experience with Kubernetes
  • Experience with cloud platforms, preferably Microsoft Azure
  • Hands-on experience with messaging technologies such as Kafka and/or Azure Event Hubs
  • Strong knowledge of PostgreSQL, including database design and optimisation
  • Experience with performance tuning and optimisation of backend services
  • Good knowledge of Git and GitHub
  • Practical knowledge of Linux and scripting/automation
  • Understanding of networking fundamentals, including protocols, routing, and network services
  • Experience using generative AI tools such as GitHub Copilot or Google Gemini in software development
  • Very good troubleshooting and analytical skills
  • English allowing effective communication in an international engineering environment

NICE TO HAVE

  • Experience working with mission-critical or high-availability systems
  • Hands-on experience with lab environments, including system configuration, installations, upgrades, and manual testing
  • Experience working as an external contractor or consultant within Agile engineering teams

Tech stack

Java, Spring Boot, Kubernetes, Azure, PostgreSQL, Git, GitHub, Linux

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,563,852 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Similar stack
Same company
Kraków
$192k – $217k per year • Remote (likely United States, US time zones hours) • Full-Time • 6+ years exp
JavaScript
TypeScript
SQL
Ruby
Node JS
Ruby
Ruby on Rails
Sidekiq
Databases
PostgreSQL
Frontend
Webpack
GraphQL
Yarn
React.js
ESLint
Prettier
DevOps
Rest API
Datadog
Heroku
Kubernetes
Analytics
Looker
Management
Slack
Agile
Apply
$110k – $158k per year • In office • TS/SCI • 10+ years exp • High School Diploma • Aurora
Python
JavaScript
PHP
C#
C++
Node JS
PHP
Drupal
C#
.NET
Frontend
React.js
DevOps
GitHub Actions
CI/CD
Jenkins
Management
Agile
Apply
$110k – $158k per year • In office • TS/SCI • 15+ years exp • High School Diploma • Aurora
Python
JavaScript
PHP
C#
C++
Node JS
PHP
Drupal
C#
.NET
Frontend
React.js
DevOps
GitHub Actions
CI/CD
Jenkins
Management
Agile
Apply
$192k – $250k per year • In office • TS/SCI • 20+ years exp • High School Diploma • Aurora
Python
JavaScript
PHP
C#
C++
Node JS
PHP
Drupal
C#
.NET
Frontend
React.js
DevOps
GitHub Actions
CI/CD
Jenkins
Management
Agile
Apply
Software Engineer 18 min ago
$176k – $200k per year • In office • TS/SCI • 14+ years exp • High School Diploma • Aurora
Python
JavaScript
Java
Java
Spring Framework
Databases
Amazon Aurora
AI/ML
Jupyter Notebook
Flink
Frontend
React.js
DevOps
Rest API
Prometheus
CI/CD
Git
AWS
Docker
Kubernetes
Grafana
Linux
Analytics
Apache NiFi
Management
Jira
Agile
Apply
≈ $67k – $106k per year (Estimated) • Equity • In office • Full-Time • 8+ years exp • Kraków
JavaScript
TypeScript
Node JS
Node JS
Nest.JS
Databases
PostgreSQL
Redis
AI/ML
Copilot
Cursor
Claude
Time Series Forecasting
Frontend
React.js
DevOps
Terraform
GCP
AWS CDK
Datadog
Prometheus
Azure
AWS
Docker
Kubernetes
Grafana
Cybersecurity
Zero Trust
Management
Agile
Apply
≈ $59k – $98k per year (Estimated) • Hybrid • Full-Time • 2+ years exp • Kraków
Java
Java
Spring Framework
AI/ML
AI Agents
Machine Learning
DevOps
GCP
Apply
PHP Developer 1 day ago
≈ $55k – $103k per year (Estimated) • In office • Bachelor's Degree • Kraków
Python
JavaScript
Java
PHP
C++
Node JS
PHP
Drupal
Databases
MySQL
DevOps
Ansible
CI/CD
Jenkins
Git
Spinnaker
Gerrit
GitLab
Linux
Unix
Apply
≈ $15k – $31k per year (Estimated) • In office • Full-Time • Kraków
Analytics
Microsoft Excel
Apply
≈ $17k – $31k per year (Estimated) • Hybrid • Internship • Kraków
Analytics
Microsoft Excel
Management
SharePoint
Microsoft Office
Apply
See all jobs
This is one of many
1,563,852 more open roles from verified company boards, updated every day.