Senior Java Developer (10/997)

Infolet • German (Optional) • English: B2 • IT Outsourcing & Dedicated Teams • Custom Software Development • Paid as a contractor rate • Relocation: Yes • JavaScript • Java • TypeScript • 5 days ago

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Salary

$44k – $52k per year (gross)

Location

Hybrid (Kraków, Poland)

Seniority

Senior · 4+ years exp

Confirmed on the employer's own hiring board on Oct 13, 2026. First seen by Alion on Oct 8, 2026. Infolet scores B on the Alion truth index.

Overview

Company

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Profile match

Infolet

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.

infolet.pl • HQ: Kraków, Poland • IT Staffing & Staff Augmentation • Custom Software Development • IT Outsourcing & Dedicated Teams • 11-50 employees • Est. 2005

Tech stack of Infolet

SUMMARY

120 -140 PLN/h on B2B

14 400 - 16 800 PLN gross on UoP

Kraków (Hybrid - 6 days per month in the office)

Senior

PROJECT

Join an international engineering environment focused on developing, maintaining, and improving distributed systems and cloud-based applications.

You will work on modern Java microservices, combining software development w ith DevOps practices, Site Reliability Engineering (SRE), and production support. The role involves designing reliable and scalable solutions, improving system observability, and ensuring high availability and performance of business-critical applications.

YOU WILL

Design, develop, and maintain distributed systems and microservices using Java 25 and Spring Boot
Drive the adoption ofDevOps and Agile principles across engineering teams
Analyse technical and business requirements and translate them into reliable technical solutions
Collaborate with Product Owners, Software Engineers, IT Architects, and other stakeholders
Design and implement scalable solutions following modern software engineering practices
Apply SRE principles to improve platform reliability, availability, capacity, and performance
Develop and enhance monitoring, alerting, and observability solutions to support incident detection and resolution
Participate in Incident Management, Problem Management, and Service Delivery processes
Improve CI/CD pipelines, deployment automation, and release processes
Support application lifecycle management, including vulnerability remediation and production stability
Identify automation opportunities and reduce manual operational tasks
Contribute to continuous improvement of engineering processes and platform reliability

MUST HAVE

4+ years of experience in developing and supporting distributed systems using Java
Strong knowledge of Java, Spring Boot, and microservices architecture
Experience with Java 25 or the ability to work with modern Java versions
Good understanding ofDevOps principles, CI/CD automation, and application lifecycle management
Experience with Jenkins, Ansible, or similar automation tools
Knowledge of REST APIs and distributed system architecture
Experience with production support, incident management, and troubleshooting
Understanding of SRE principles, monitoring, and observability
Familiarity with Jira and Confluence
Strong analytical and problem-solving skills
Excellent communication skills and ability to collaborate with cross-functional, international teams
Very good English communication skills

NICE TO HAVE

Experience with Google Cloud Platform (GCP)
Knowledge of Spring Cloud, Apache Beam, or Apache Flink
Experience with Angular
Familiarity with Redis
Experience with vulnerability remediation and application security practices
German language skills

OUR OFFER

The relocation package (4500 PLN total value) is paid in three installments (1500 PLN per month) if your permanent office presence is mandatory and you need to relocate from another city
Benefits: Extended medical care (over 2000 medical facilities in Poland, 80 in Kraków) for you and your family; Multisportcard; Life insurance

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