Java Development
StepTo's Serbia-based Java engineers cost $25-85/hr, 40-60% less than Western Europe or the US. Build enterprise-grade applications with Spring Boot and Java.
Why Hire Java Developers From Belgrade, Serbia?
StepTo is a nearshore software development company headquartered in Belgrade, Serbia. Our Java developers build Spring Boot microservices and enterprise applications for European and US companies, working in the CET timezone at 40-60% lower cost than Western Europe or the US, with senior engineers averaging 7+ years of experience. Enterprise Java systems tend to outlive the people who wrote them unless the team stays intact, and StepTo's engineers rarely rotate off, averaging 2.5+ years of developer tenure.
Java remains the backbone of enterprise software, powering banks, healthcare systems, e-commerce platforms, and government applications worldwide. With its mature ecosystem, strong typing, and unmatched library support, Java continues to evolve with features like virtual threads, pattern matching, and GraalVM native compilation. At StepTo, our Serbian Java developers bring decades of combined enterprise experience.
Whether you're building new Spring Boot microservices, modernizing a legacy Java monolith, or scaling your existing Java team, our developers deliver robust, maintainable solutions. We follow enterprise best practices including domain-driven design, clean architecture, comprehensive testing, and CI/CD automation.
Based in Belgrade, Serbia, our Java developers work in the CET timezone, enabling real-time collaboration with European and US East Coast teams. You get senior-level Java and Spring Boot expertise at 40-60% lower costs, backed by strong computer science fundamentals and years of enterprise project experience. To hire individual Java developers directly, see our Java developer hiring guide.
What Java Services Does StepTo Provide?
StepTo provides 6 Java services: Spring Boot Applications, Enterprise Java (Jakarta EE), Microservices Architecture, Java Cloud-Native, Legacy Java Modernization, and Java Performance Tuning.
Spring Boot Applications
Production-ready microservices and APIs with Spring Boot 3, featuring auto-configuration, embedded servers, and cloud-native capabilities.
Enterprise Java (Jakarta EE)
Mission-critical enterprise applications with Jakarta EE, providing robust security, transaction management, and scalability.
Microservices Architecture
Distributed systems with Spring Cloud, service discovery, circuit breakers, API gateways, and event-driven communication.
Java Cloud-Native
Cloud-native Java applications with containerization, Kubernetes deployment, and serverless functions using GraalVM native images.
Legacy Java Modernization
Modernize legacy Java applications to Spring Boot 3, microservices, or cloud-native architecture with minimal disruption.
Java Performance Tuning
JVM performance analysis, garbage collection optimization, memory profiling, and application performance monitoring.
Which Java Frameworks and Tools Do We Use?
Our Java developers work with Java 21+, Spring Boot 3, Spring Cloud, Hibernate, Maven, and Gradle.
Which Industries Do Our Java Teams Serve?
Our Java teams serve 4 industries: Banking and Financial Services, E-Commerce Platforms, Healthcare Systems, and Logistics and Supply Chain.
Banking & Financial Services
Secure, high-throughput financial systems with real-time transaction processing, regulatory compliance, and audit trails.
E-Commerce Platforms
Scalable e-commerce backends handling millions of transactions, inventory management, and personalized shopping experiences.
Healthcare Systems
HIPAA-compliant healthcare platforms with patient data management, clinical workflows, and medical device integration.
Logistics & Supply Chain
Real-time tracking, route optimization, warehouse management, and supply chain visibility platforms.
What Do Clients Ask About Java Development?
Why hire Java developers from Serbia?
Serbian Java developers are among the strongest in Europe, with deep expertise in enterprise development and Spring Boot ecosystem. Java has been a core part of Serbian university curricula and enterprise projects for decades, resulting in a mature talent pool with strong fundamentals. At 40-60% lower costs than Western Europe, you get senior-level Java expertise in the CET timezone with excellent English communication and European work culture.
What Java frameworks and technologies do you use?
Our primary framework is Spring Boot 3 with Spring Cloud for microservices. We use Hibernate and Spring Data for database access, Kafka and RabbitMQ for messaging, and Redis for caching. For testing, we rely on JUnit 5, Mockito, and Testcontainers. We deploy with Docker and Kubernetes, and use Maven or Gradle for build management. We also work with GraalVM for native compilation and virtual threads for improved concurrency.
Can you modernize our legacy Java application?
Yes, legacy Java modernization is one of our specialties. We have experience migrating from Java 8 to modern Java, from monolithic architectures to microservices, and from traditional deployment to cloud-native. Our approach is incremental, we use the strangler fig pattern to gradually replace legacy components while keeping the system operational. We also modernize build tools, testing frameworks, and deployment pipelines.
Do you build microservices with Java?
Yes, StepTo builds microservices with Java. We design and implement microservices architectures using Spring Boot and Spring Cloud, including service discovery with Eureka or Consul, API gateways with Spring Cloud Gateway, circuit breakers with Resilience4j, and distributed tracing with Micrometer and Zipkin. We handle the full complexity of distributed systems including saga patterns for transactions, event sourcing, and CQRS where appropriate.
How do you handle Java application performance?
We take a data-driven approach to performance. We use profiling tools like JProfiler and async-profiler to identify bottlenecks, optimize JVM settings including garbage collector selection and heap sizing, and implement application-level caching strategies. We set up monitoring with Prometheus and Grafana, use distributed tracing for microservices, and implement load testing with JMeter or Gatling to validate performance under realistic conditions.
What engagement models do you offer for Java development?
We offer staff augmentation to embed senior Java developers in your team, dedicated teams for larger Java projects, and project-based development for defined scopes. For enterprise clients, we also offer managed services with SLA guarantees. All engagements include a trial period so you can evaluate technical expertise, communication, and cultural fit before making a long-term commitment.
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