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Java Backend Developer Poland Jobs

44 Job Offers

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Build System Engineer
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Poland , Kielce; Kraków; Wrocław
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21000.00 - 27000.00 PLN / Month
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VirtusLab
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Fullstack Developer
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Poland , Wrocław; Bielsko-Biała
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135.00 - 170.00 PLN / Hour
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Cshark
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Senior Full Stack/Web Performance Engineer
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Poland
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RTB House
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Senior Distributed Systems Engineer - Ad Display Platform Engineering
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Poland
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RTB House
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Lead Engineer - Backend
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Poland , Łódź
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Arrive
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Junior Java Engineer
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Poland , Wroclaw
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Not provided
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Zoolatech
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Senior Software Engineer - Java/ Spring Boot
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Poland
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3Pillar Global
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Software Engineering Intern
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Poland , Krakow
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Tripadvisor
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Junior Java Engineer
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Poland , Wroclaw
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Zoolatech
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Junior Java Engineer
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Poland , Wroclaw
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Zoolatech
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Senior Software Engineer - C#
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Poland , Gdansk
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Mastercard
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Senior Software Engineer
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Poland , Gdansk
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Senior Full Stack/Web Performance Engineer
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Poland
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RTB House
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JVM Software Engineer
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Poland , Warsaw
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Inetum
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JVM Software Engineer
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Poland , Warsaw; Poznań; Lublin
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Inetum
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Paid Internship (Back-end)
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Poland , Warsaw
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Robert Bosch Sp. z o.o.
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Frontend Software Engineer
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Poland , Warsaw
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Inetum
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Senior JVM Software Engineer
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Poland , Warsaw
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Inetum
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Lead JVM Software Engineer
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Poland , Warsaw
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Inetum
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JVM Software Engineer
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Poland , Warsaw
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Inetum
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Embark on a rewarding career path by exploring Java backend developer jobs, a cornerstone role in the global technology landscape. These professionals are the architects of the server-side logic, the builders of the robust systems that power websites, applications, and digital services you use every day. Their work is invisible to the end-user but is absolutely critical for performance, security, and scalability. When you search for Java backend developer jobs, you are looking at opportunities to become an engineer who builds the foundational engine of modern software, handling everything from data processing to business logic and API creation. A Java backend developer's typical responsibilities are centered around creating and maintaining the core functional aspects of an application. This involves designing, developing, and deploying server-side components using the Java ecosystem. A common day might include writing clean, efficient, and well-documented code for new features, building and maintaining secure and scalable RESTful APIs that allow frontend clients and other services to communicate with the server, and integrating these services with various databases. Developers are responsible for data modeling, writing complex SQL queries for relational databases like PostgreSQL or Oracle, and often working with NoSQL databases like MongoDB for specific use cases. Furthermore, they implement critical security measures to protect sensitive data, optimize application performance for high throughput and low latency, and containerize applications using tools like Docker for consistent deployment. The role is highly collaborative, requiring active participation in code reviews, agile ceremonies, and troubleshooting complex system issues. To succeed in Java backend developer jobs, a specific and evolving skill set is required. Core proficiency in Java is fundamental, with a deep understanding of its object-oriented principles, concurrency, and the extensive ecosystem. Mastery of the Spring Framework, particularly Spring Boot, is almost universally expected, as it dramatically accelerates development. A solid grasp of database technologies is crucial, encompassing both relational (SQL) and non-relational (NoSQL) systems. Experience with building and consuming RESTful web services is a standard requirement. In today's cloud-native world, familiarity with cloud platforms like AWS, Azure, or GCP, along with containerization using Docker and orchestration with Kubernetes, is increasingly common. Understanding architectural patterns, especially microservices, and tools for inter-service communication like Apache Kafka, is highly valued for senior roles. Beyond technical prowess, strong problem-solving abilities, analytical thinking, effective communication for cross-team collaboration, and a commitment to writing testable, maintainable code are essential soft skills. Whether you are an entry-level candidate with a foundation in Java and a passion for learning or a seasoned developer with expertise in distributed systems, there is a vast spectrum of Java backend developer jobs waiting for individuals who enjoy building the reliable, high-performance technology that drives business forward.

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