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Java Developer Poland Jobs (On-site work)

7 Job Offers

Sr. Java Developer
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Senior Java Developer sought for Keepit’s Krakow office to build a cloud-to-cloud backup platform. You will own end-to-end features, drive architectural decisions for greenfield projects, and mentor peers. Requires 5+ years Java, Spring Boot, RESTful APIs, KeyCloak, SQL, Docker, and CI/CD. Benefi...
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Poland , Kraków
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Not provided
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Keepit
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Until further notice
Senior Fullstack Developer (Angular & Java) – AI-enabled Environment
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Senior Fullstack Developer (Angular & Java) sought for an AI-enabled environment in Warsaw. Join an international team building business-critical applications using microservices and modern SDLC. You will develop frontends with Angular/TypeScript and backends with Java/Spring, leveraging AI tools...
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Poland , Warsaw
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Not provided
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Talan
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Until further notice
Senior Java Developer
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Poland , Wroclaw
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Not provided
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Sportradar
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Until further notice
Senior Java Developer
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Senior Java Developer sought for Circle K’s Warsaw hub to build scalable microservices within a global loyalty ecosystem. You’ll design REST APIs, leverage Java 17+ and Spring, and work with Azure, Docker, and Kubernetes. Join 300+ IT professionals impacting millions of customers across Europe an...
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Poland , Warszawa
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Not provided
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Circle K
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Until further notice
Intern Java Backend Developer
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Join our team in Warsaw as a Java Backend Developer Intern. Gain hands-on experience developing microservices and RESTful APIs for global EV and Fuel platforms using Java and Spring Boot. You'll work with databases like PostgreSQL in an Agile environment, supported by expert mentorship. This inte...
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Poland , Warsaw
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Not provided
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Circle K
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Until further notice
Senior Java Developer
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Join our Warsaw team as a Senior Java Developer. You will design and evolve the administrative backbone for real-time sports data using Java, PHP, and AWS. We value TDD, pair programming, and clean architecture principles. Enjoy a collaborative environment with mentoring and global impact.
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Poland , Warsaw
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Not provided
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Sportradar
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Until further notice
Intern Java Backend Developer
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Join our team in Warsaw as a Java Backend Developer Intern. Gain hands-on experience developing RESTful APIs with Java and Spring Boot for the eMobility sector. You'll work on real EV charging projects using SQL databases and Agile/SCRUM methodologies. This internship offers expert mentorship and...
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Location
Poland , Warszawa
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Not provided
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Circle K
Expiration Date
Until further notice

About the Java Developer role

Explore the dynamic world of Java developer jobs and discover a career at the heart of modern software innovation. Java developers are the architects and builders of the digital landscape, creating robust, scalable, and secure applications that power everything from enterprise-level banking systems to popular web services and mobile apps. As a professional in this field, you will leverage one of the world's most versatile and enduring programming languages to solve complex business problems and deliver high-performance software solutions.

A career in Java development typically involves a comprehensive set of responsibilities centered around the full software development lifecycle. Professionals in these roles are generally tasked with designing, developing, testing, and deploying applications. This includes writing clean, efficient code, troubleshooting and debugging to resolve issues, and performing system upgrades. A significant part of the role involves collaborating with cross-functional teams, including business analysts, project managers, and quality assurance engineers, to translate business requirements into technical specifications. For senior-level Java developer jobs, responsibilities often expand to include mentoring junior team members, leading projects, making architectural decisions, and ensuring that development practices align with industry security standards and best practices.

The skill set for these jobs is both deep and broad. A strong foundation in core Java is paramount, complemented by expertise in key frameworks and technologies that define the modern ecosystem. Proficiency in Spring Framework (including Spring Boot and Spring Cloud), J2EE, and Hibernate is highly common. Developers are expected to be skilled in building and consuming RESTful web services and APIs. With the industry's shift towards microservices architecture, experience with Docker, Kubernetes, and message brokers like Kafka is increasingly standard. For full-stack Java developer jobs, knowledge of front-end technologies such as JavaScript, HTML/CSS, and frameworks like Angular or React is a valuable asset. Furthermore, familiarity with database management using both relational (e.g., Oracle, PostgreSQL) and NoSQL (e.g., MongoDB) systems, as well as version control with Git, is essential.

Beyond technical prowess, successful candidates for Java developer jobs possess strong analytical and problem-solving abilities. They are adept at working under pressure, managing deadlines, and adapting to changing requirements. Excellent communication skills are crucial for effective teamwork and for explaining complex technical concepts to non-technical stakeholders. A growth mindset is highly valued, with many professionals continuously learning about emerging trends such as cloud computing (AWS, Azure, GCP), DevOps practices, CI/CD pipelines, and even the integration of AI tools to enhance productivity. Whether you are an entry-level coder or a seasoned lead, Java developer jobs offer a challenging and rewarding path for those passionate about building the technology that drives the global economy.