Trusted by founders and growing teams

Java Development Services

JVM-focused engineering for secure, reliable enterprise systems.

About

We build high-performance Java backend systems in, engineered for reliability, security, and predictable scaling for companies across. This service is JVM-specific by design: Spring ecosystem delivery, legacy modernization, and Java platform expertise. Whether you're launching a new platform, modernizing a legacy Java stack, or scaling mission-critical infrastructure, we deliver production-ready Java systems built to handle real-world load, complex workflows, and long-term growth.

Why Companies Choose Us

Experience with security-critical systems in finance, telecom, and enterprise environments
Deep expertise in the Spring ecosystem and JVM reliability
Strong understanding of EU requirements for security, data handling, and privacy
Ability to modernize legacy stacks without stopping business operations
Cost-efficient engineering with long-term maintainability in mind
Multilingual team accustomed to Mittelstand & international workflows

What We Deliver

Java Microservices & Modular Architectures

  • Java 21, Spring Boot, Spring Cloud
  • Modular systems using PF4J / OSGi
  • Microservices, hybrid architectures, and monolith modernization
  • API gateways, inter-service communication, service discovery
  • DDD, event-driven architecture, CQRS patterns

Enterprise Integrations

  • REST, SOAP, GraphQL
  • Kafka event streaming
  • High-performance RPC (gRPC)
  • ERP/CRM integrations (SAP, 1C, Odoo, Dynamics)
  • Payment gateways & fintech APIs
  • Custom connectors for legacy enterprise platforms

Secure Authentication & Identity Systems

  • Spring Security architectures
  • OAuth2, SSO, JWT, MFA
  • Keycloak realm design & integration
  • Apereo CAS for enterprise-grade SSO flows
  • RBAC models, audit logs, access governance

High-Load Data Processing

  • Kafka → PostgreSQL / ClickHouse ingestion pipelines
  • Real-time and batch data processing
  • Distributed workers, async workflows
  • Financial reconciliation & transaction engines
  • ETL pipelines (batch + streaming)

Reporting & Analytical Backends

  • PDF / XLS / CSV engines
  • Aggregated analytics APIs
  • BI integrations (Tableau, PowerBI)
  • High-speed OLAP queries with ClickHouse
  • Time-series data storage & dashboards

Optimization & Reliability

  • CPU & memory profiling, GC tuning
  • SQL optimization, indexing, partitioning
  • Caching with Redis
  • Horizontal scaling strategies
  • Circuit breakers, fault tolerance, retries
  • Load testing and observability setup

When You Need Java Development

Choose this service when you need:

Mission-critical backend systems with strict reliability
High-load microservices or an event-driven architecture
Secure data flows for finance, logistics, or enterprise workflows
Replacement of outdated legacy backend systems
Java/JVM modernization and Spring ecosystem upgrades
A backend for large user bases or complex domain logic
Migration from old Java versions or monolithic platforms
A trusted partner for long-term backend development
Security-focused authentication and access control for enterprise systems

Tools & Technologies

Java & Frameworks

Java 21, Spring Boot, Spring Cloud, PF4J, OSGi

Databases

PostgreSQL, ClickHouse, Oracle, Redis

Messaging & Streaming

Kafka, gRPC, RabbitMQ, WebSocket

Security

Spring Security, Keycloak, CAS, OAuth2, JWT, MFA, SSO

Build & Testing

Maven, Gradle, JUnit 5, Testcontainers

Architecture Patterns

DDD, CQRS, event-driven systems, modular architectures

Infrastructure

Docker, Kubernetes, Nginx, Jenkins, GitHub Actions

FAQ

FAQ

Spring Boot & Spring Cloud are our core for production systems, but we also work across the broader JVM ecosystem and legacy Java stacks when needed.

Yes — monolith refactors, Java 8/11 → 21 upgrades, outdated deployments, SOAP services, etc.

Absolutely — we design systems for large SaaS platforms and high-throughput telecom and enterprise data pipelines.

Yes — ERP, CRM, payment systems, identity providers, & custom enterprise software.

Yes — DDD, CQRS, event-driven systems, integration architecture & migration roadmaps.

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Java development for companies operating production backend systems. We support organizations with Java and Spring Boot development, backend architecture, and backend systems based on the specific technical and regulatory context of each project. All services are delivered individually and depend on system requirements and constraints.