Java & Spring Boot Development
- Spring Boot, Spring Cloud, Hibernate, Quarkus and Micronaut
- Microservices designed for resilience and observability
- Java 8/11 to 17/21 and Java EE to Spring Boot upgrades
- Containerized delivery on Docker and Kubernetes
Why Java Development with VN Softverg
Java remains the backbone of enterprise software for good reason: mature tooling, strong typing, excellent performance and an ecosystem that has solved nearly every enterprise problem. We build and maintain Java systems that handle real business load, including transaction processing, order management, banking and insurance workflows, and high-volume integration services.
Our Java engineers work primarily with Spring Boot and the wider Spring ecosystem (Spring Security, Spring Data JPA, Spring Cloud, Spring Batch), alongside Hibernate, Quarkus and Micronaut where startup time and memory footprint matter. We design services for observability, resilience and clean deployment on Docker and Kubernetes.
Already running Java? We also take on modernization work: upgrading from Java 8 or 11 to Java 17/21, migrating Java EE applications to Spring Boot, and breaking monoliths into microservices without disrupting production.
Everything you need, under one roof
Spring Boot Microservices
Independently deployable services with Spring Boot and Spring Cloud, including service discovery, configuration management and circuit breakers via Resilience4j.
- Microservices codebase
- Service architecture documentation
- Resilience and retry configuration
REST & Event-Driven APIs
Well-documented REST APIs with springdoc-openapi, and asynchronous processing with Kafka or RabbitMQ through Spring for Apache Kafka and Spring AMQP.
- OpenAPI documentation
- Kafka / RabbitMQ producers and consumers
- API contract tests
Enterprise Application Development
Complex business applications with Spring Security (OAuth 2.0, LDAP, SSO), Spring Data JPA, transaction management and batch processing with Spring Batch.
- Application codebase with security model
- Batch job definitions
- Database schema with Flyway migrations
Performance Tuning
JVM profiling, garbage collection tuning, query optimization and caching with Redis or Caffeine to reduce latency and infrastructure cost.
- Profiling and bottleneck report
- JVM and GC tuning recommendations
- Caching strategy implementation
Java Modernization & Upgrades
Upgrades to Java 17/21 LTS and Spring Boot 3, Java EE / JSP to Spring Boot migrations, and javax-to-jakarta namespace changes using OpenRewrite.
- Upgrade assessment
- Upgraded and tested codebase
- Deprecated API replacement log
Cloud-Native Java Delivery
Containerized builds with Jib or Buildpacks, Kubernetes deployments, Micrometer metrics and OpenTelemetry tracing, and Maven or Gradle CI pipelines.
- Container images and Helm charts
- CI/CD pipeline
- Metrics and tracing dashboards
Measurable from day one
New projects start on a current long-term-support release.
JUnit 5 and Mockito coverage on service and domain layers.
Response time goal for core endpoints under expected load.
Quality gate blocks merges with critical or blocker findings.
A clear path from kickoff to results
Architecture Review
Define service boundaries, data ownership, integration patterns and non-functional requirements.
Foundation Setup
Project templates, security, CI/CD, observability and coding standards established first.
Iterative Development
Features delivered in two-week sprints with code reviews and automated tests.
Performance & Security Validation
Load testing, dependency scanning and security review before release.
Deploy & Support
Containerized rollout, monitoring and ongoing maintenance or handover.
The right stack for the job
- Proven reliability for high-volume, business-critical workloads
- A vast talent pool and ecosystem that reduce long-term risk
- Strong security foundations through Spring Security
- Better performance and lower cloud costs through JVM tuning
- A clear upgrade path off end-of-life Java versions
Built for teams like yours
Banking & financial services
Transaction processing, lending workflows and payment services with strict auditability.
Enterprise backends
Order, inventory, billing and HR systems serving many internal and external users.
High-throughput integrations
Kafka-based pipelines and integration services processing large message volumes.
Java upgrades
Moving applications from Java 8/11 and older Spring versions to supported releases.
Monolith decomposition
Breaking large Java EE or Spring monoliths into maintainable services.
Java offers strong performance, mature tooling, excellent security libraries and a deep talent pool. It's a safe choice for systems that must run reliably for many years.
Related services
API Development & System Integration
REST, GraphQL and event-driven API development plus ERP, CRM, payment and third-party integrations that eliminate manual data entry and silos.
Learn moreLegacy Application Modernization
Legacy application modernization: assessment, re-platforming, refactoring to microservices and cloud migration of aging .NET, Java, PHP and VB systems.
Learn moreDedicated Development Teams
A full-time, cross-functional team that works only on your product. You set priorities; we handle hiring, retention and operations.
Learn moreReady to start with Java Development?
Tell us about your project, team gap or IT challenge. A senior consultant replies within one business day with next steps — no obligation.