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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on modernizing legacy Java applications and developing Java microservices using Java 17, Spring Boot, Spring Cloud. Experience with DevOps, CI/CD, Jenkins, Ansible and application lifecycle management tools is required. Core responsibilities include system maintenance, microservices development, improving observability, and process automation. Benefits include healthcare, Multisport card, insurance.
from: 7 July 2026
to: 6 August 2026
30 000 - 34 000 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Expected technologies
Java
Spring Boot
Jira
Confluence
Ansible
Jenkins
Operating system
Windows
Our requirements
- 5+ years of experience in developing and supporting distributed systems in Java
- Ability to build applications and microservices using Java 17 and Spring Boot
- Strong knowledge of modern Java frameworks and patterns (Spring Cloud)
- Familiarity with DevOps tools and CI/CD practices
- Proficient in app lifecycle management tools: JIRA, Confluence, Ansible, Jenkins
- Excellent analytical and communication skills; ability to work across global teams
- Structured, independent work approach with high attention to detail
- Technology stack: Java SE, Spring Boot, Spring Cloud, Angular, GCP, Redis, REST APIs, Ansible, Jenkins
Optional
- Knowledge of vulnerability remediation practices
- Experience in optimizing applications for observability and resiliency
- Hands-on exposure to AI-enabled SDLC practices
Your responsibilities
- Proactively engage in service management activities (Incident, Problem, and Service Delivery)
- Modernize and maintain legacy systems using AI-assisted coding tools (GitHub Copilot, Claude Code)
- Collaborate with Product Owners, IT specialists, and Architects to design scalable solutions
- Analyse technical and non-technical requirements; provide service-oriented recommendations
- Design and build robust, secure microservices using modern Agile methods and DevOps principles
- Develop observability tools for monitoring, alerting, incident detection, and performance optimization
- Drive CI/CD automation and ensure release readiness across environments
- Note: Detailed project information will be shared during the recruitment process.
About the project
As a Senior Software Engineer, you will join our Kraków-based team to work on evergreening legacy Java applications and supporting production systems. You will build modern Java microservices, improve observability and reliability, and use AI-driven tools like GitHub Copilot to accelerate delivery while maintaining high standards of code quality and security.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
agile
This is how we work on a project
- Continuous Deployment
- Continuous Integration
- testing environments
Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
What we offer
- Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.).
- Hybrid work setup – remote days available depending on the client’s arrangements - 2 days a week from the office in Kraków
- Collaborative team culture – work alongside experienced professionals eager to share knowledge.
- Continuous development – access to training platforms and growth opportunities.
- Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more.
- High quality equipment – laptop and essential software provided.
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Senior Java Engineer
30k–34k zł / mth. (B2B)
I apply to:
Mindbox Sp. z o.o.
Kraków, Lesser Poland
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