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Senior Java Developer Poland Jobs

7 Job Offers

Senior Java Developer (Senior Software Engineer)
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Sopra Steria
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Senior Java Developer (AI)
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Inetum
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Senior Java Developer (AI)
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Poland, Poznan
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Inetum
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Senior Java Developer
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Senior Java Developer sought to build scalable, high-performance services for real-time sports data in Wrocław. Join an international team working on in-game pipelines and AI-driven systems, leveraging AWS and microservices. Key requirements include Java expertise, TDD, and an Agile mindset. Bene...
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Sportradar
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Senior Java Full-Stack Developer with Angular Experience
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Senior Java Full-Stack Developer with Angular expertise needed to build a high-performance financial SaaS platform. You will design scalable backend systems using Java, Spring Boot, and Kafka, while also crafting UIs with Angular and TypeScript. This role offers a competitive salary, flexible wor...
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N-iX
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Senior Java Developer
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Senior Java Developer sought for a modernisation project migrating a legacy Java/JSF claim management system to Spring Boot + Angular. You'll need 5+ years of Java experience, strong Spring Boot and Hibernate skills, and Oracle knowledge. The role offers remote work from Poland, flexible hours, m...
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Unicrew
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Senior Java Cloud Developer
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Senior Java Cloud Developer sought to join Citi’s XiNG platform team in Warsaw, Poland. You will design and maintain a high-performance distributed calculation engine handling 500 million daily risk calculations. Requires 10+ years of Java, Spring Boot, Kubernetes, and cloud expertise. Benefits i...
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268390.00 - 457010.00 PLN / Year
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Citi
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About the Senior Java Developer role

Explore senior Java developer jobs and discover a pivotal career at the heart of modern software engineering. A Senior Java Developer is an experienced professional responsible for designing, building, and maintaining high-performance, scalable, and secure enterprise-grade applications. This role transcends basic coding, involving deep architectural contributions and technical leadership within development teams. Professionals in these positions are instrumental in transforming business requirements into robust technical solutions, ensuring system reliability, and driving technological innovation.

Typically, the core responsibilities of a Senior Java Developer encompass the entire software development lifecycle. They lead the design and implementation of application architecture, often focusing on microservices and distributed systems. Writing clean, efficient, and well-documented code using core Java and modern frameworks like Spring Boot is fundamental. They develop and integrate RESTful APIs, design data persistence layers using both SQL and NoSQL databases, and implement security protocols. A significant part of the role involves mentoring junior developers, conducting rigorous code reviews, and advocating for best practices in code quality and testing. Furthermore, they collaborate closely with cross-functional teams including product managers, business analysts, and DevOps engineers to define requirements, troubleshoot complex issues, and ensure timely project delivery.

The typical skill set for these senior roles is extensive and evolving. A strong foundation in Core Java (including versions 8 and above) and the Spring ecosystem (Spring Boot, Spring Cloud, Spring Security) is essential. Expertise in microservices architecture, containerization with Docker, and orchestration with Kubernetes is highly common. Proficiency in building event-driven systems using messaging platforms like Kafka, alongside experience with CI/CD pipelines and tools like Jenkins and Git, is expected. Beyond technical prowess, successful candidates demonstrate excellent problem-solving abilities, a keen understanding of system design patterns, and a commitment to writing testable code using frameworks like JUnit. Familiarity with cloud platforms (AWS, Azure, GCP) and front-end technologies (like Angular or React) is often a valuable asset. Senior developers are also expected to possess strong soft skills: clear communication, the ability to lead initiatives, a growth mindset adaptable to new technologies like AI tooling, and a collaborative spirit focused on continuous improvement.

When searching for senior Java developer jobs, candidates should be prepared for roles that demand both deep technical expertise and strategic influence. These positions offer the opportunity to work on critical systems, guide technical direction, and play a key role in an organization's digital transformation. Whether focusing on backend services, full-stack development, or specialized domains, senior Java developers are the cornerstone of building resilient and forward-looking software platforms.