Senior Java Engineer

At Mindboxwe connect top IT talents with technology projects for leading enterprises across Europe.

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?

Responsibilities

• 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

Requirements

• 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.

Benefits

• 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

Nice to Have

• Knowledge of vulnerability remediation practices
• Experience in optimizing applications for observability and resiliency
• Hands-on exposure to AI-enabled SDLC practices

Joining this project you’llbecome part of Mindbox - a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’llback you up every step of the way, accelerate your development, and ensure your skills make a difference.