Java Software Engineer / 1

Description

For one of our clients in the telecommunications industry we are looking for JVM Software Engineer.

The new joiner will be part of a team focused on modernizing and streamlining legacy Java applications.

Responsibilities

• Drive modernization – migrate Java applications from Wildfly to Spring Boot, removing legacy components like EJBs and JMS while simplifying the architecture.
• Standardize APIs – create and evolve OpenAPI specifications, driving contract-first development and clean service design.
• Integrate seamlessly – connect systems and processes through Kafka to enable reliable, event-driven communication.
• Guarantee quality – develop robust integration and regression tests to ensure full functional parity after migration.
• Build for the cloud – define Kubernetes environment, access controls, and deployment strategies aligned with platform standards.
• Automate delivery – design and refine CI/CD pipelines that bring speed and stability to every release. And beyond migration:
• Keep applications continuously up to date using OpenRewrite and Renovate Bot
• Design and implement AI-based code review systems as an intelligent first gate for code quality and guideline compliance
• Experiment daily with GitHub Copilot and other AI assistants to accelerate development
• Explore AI-driven approaches to detect risks and breaking changes during library updates
• Project technology: SpringBoot (the latest), Java 21 (version 8, 11, 17 in the migrated project), JPA, GitHub Copilot, Claude Code, Renovate Bot, OpenRewrite, EJB (as part of a migrated project, just being removed), Camunda, Kubernetes, Kibana, CI/CD (Jenkins), Git, Intellij Idea

Requirements

• Knowledge of Spring Boot and Java,
• Experience with SQL databases,
• Good understanding of REST APIs,
• Knowledge of OpenAPI,
• Experience using Kubernetes.
• Fluent communication skills in English and Polish (minimum B2 level), both written and spoken.
• Kubernetes/ Cloud Environment.
• Event Sourcing.
• Kafka.
• Additional Information
• This position allows for remote work for candidates based in Poland.
• We hereby inform you that the company Polska sp. z o.o. has implemented an internal reporting (whistleblowing) procedure. The content of the procedure and the possibility to submit an internal report are available at:
• Company Description
• The company Polska is part of the global the company Group and plays a key role in driving the digital transformation of businesses and public institutions. Operating in cities such as Warsaw, Poznan, Katowice, Lublin, Rzeszow, Lodz the company offers a wide range of IT services. Additionally, the company is involved in local social initiatives, such as charitable projects and promoting an active lifestyle. It prides itself on fostering a diverse and inclusive work environment, ensuring equal opportunities for all.
• The company focuses on four key areas:
• Consulting (the company Consulting): Strategic advisory services that help organizations define and implement innovative solutions.
• Infrastructure and Application Management (the company Technologies): Designing and managing IT systems tailored to clients’ individual needs.
• Software Implementation (the company Solutions): Deploying partner solutions from industry leaders like Microsoft, SAP, Salesforce, and ServiceNow.
• Custom Software Development (the company Software): Creating unique software solutions to meet specific client needs.
• With strategic partnerships with major technology giants, including Microsoft, SAP, Salesforce, and ServiceNow, the company delivers advanced technological solutions tailored to customer requirements.
• The company distinguishes itself by offering a comprehensive range of benefits that meet the diverse needs of employees, providing flexibility, support and commitment. Here's what makes working at the company unique:
• Flexible and hybrid work:
• Flexible working hours.
• Hybrid work model, allowing employees to divide their time between home and modern offices in key Polish cities.
• Attractive financial benefits:
• A cafeteria system that allows employees to personalize benefits by choosing from a variety of options.
• Generous referral bonuses, offering up to PLN6,000 for referring specialists.
• Additional revenue sharing opportunities for initiating partnerships with new clients.
• Professional development and team support:
• Ongoing guidance from a dedicated Team Manager for each employee.
• Tailored technical mentoring from an assigned technical leader, depending on individual expertise and project needs.
• Community and Well-Being:
• Dedicated team-building budget for online and on-site team events.
• Opportunities to participate in charitable initiatives and local sports programs.
• A supportive and inclusive work culture with an emphasis on diversity and mutual respect.