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Backend

Java backends
built for the long haul

Spring Boot, microservices, and the JVM's unmatched reliability. We build Java systems that process millions of transactions, pass every audit, and run for years without rewrites.

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What we build

Java engineering services

From monolith modernization to greenfield microservices, we deliver enterprise-grade Java.

01 / Spring Boot

Spring Boot Applications

Production-ready APIs and services with Spring Boot's opinionated defaults, auto-configuration, and the largest enterprise ecosystem in backend development.

  • Spring Boot 3.x with Java 21+ features
  • Spring Data JPA with Hibernate 6
  • Spring Security with OAuth 2.0 / SAML
  • Spring Actuator for health checks & metrics
02 / Microservices

Microservice Architecture

Domain-driven microservices with service mesh, distributed tracing, and circuit breakers — designed for independent deployment and team autonomy.

  • Spring Cloud Gateway for API routing
  • Resilience4j circuit breakers & retries
  • Distributed tracing with Micrometer + Tempo
  • Event-driven communication with Kafka
03 / Performance

JVM Performance

GraalVM native images, virtual threads, and JVM tuning that turns Java from 'slow to start' into 'fast everywhere.'

  • Virtual threads (Project Loom) for concurrency
  • GraalVM native image compilation
  • JVM profiling with async-profiler
  • Memory optimization & GC tuning
04 / Modernization

Legacy Modernization

Strangler fig migration from Java 8, monoliths, and EJBs to modern Spring Boot with zero downtime and incremental delivery.

  • Java 8/11 to Java 21 migration
  • Monolith to modular decomposition
  • EJB / Servlet to Spring Boot conversion
  • Database migration with Flyway / Liquibase
Stack

Java platform stack

The tools and frameworks that power our Java engineering practice.

Spring Boot 3
Spring Boot 3
Application Framework
Java 21
Java 21
Language
Apache Kafka
Apache Kafka
Event Streaming
PostgreSQL
PostgreSQL
Database
Gradle
Gradle
Build Tool
JUnit 5
JUnit 5
Testing
Docker
Docker
Containerization
GraalVM
GraalVM
Native Images
Flyway
Flyway
Migrations
Micrometer
Micrometer
Observability
Use cases

Java at enterprise scale

Core banking platform

Transaction processing engine handling 50M daily transactions with ACID guarantees, multi-currency support, and real-time fraud detection integration.

Insurance policy engine

Rules-based policy pricing and underwriting system processing complex actuarial models with sub-second response times for agent-facing quotes.

Logistics routing system

Multi-constraint vehicle routing optimization processing 100k shipments daily with real-time traffic data and dynamic re-routing capabilities.

Healthcare claims processing

HIPAA-compliant claims adjudication pipeline processing EDI 837/835 transactions with automated validation and payer routing.

Telecom billing platform

Usage-based billing system rating CDRs from 10M subscribers, applying complex tariff plans, and generating invoices with tax calculation.

Government identity service

High-assurance identity verification service processing passport/ID document validation with biometric matching and audit trails.

How it looks

Modern Java — clean and expressive

Records, pattern matching, and virtual threads make Java 21 a joy to write.

// Spring Boot 3 + Virtual Threads + Records
@RestController
@RequestMapping("/api/orders")
public class OrderController {

    private final OrderService orderService;

    @PostMapping
    public ResponseEntity<OrderResponse> create(
            @Valid @RequestBody CreateOrderRequest request) {
        var order = orderService.create(request);
        return ResponseEntity.status(201).body(order);
    }

    record CreateOrderRequest(
        @NotNull UUID customerId,
        @NotEmpty List<LineItem> items
    ) {}
}
FAQ

Common questions.

Is Java still the right choice for new projects?

For enterprise backends with strict reliability, compliance, and team scaling requirements — absolutely. Java 21 with virtual threads, records, sealed classes, and pattern matching is a modern, expressive language. The JVM ecosystem (Spring, Kafka, Hibernate) is unmatched for enterprise integration.

Spring Boot or Quarkus?

Spring Boot for most projects — the ecosystem, community, and hiring pool are vastly larger. Quarkus when you need GraalVM native images for serverless/container cold starts and your team is comfortable with a smaller ecosystem. We're proficient in both.

How do you handle Java modernization from legacy systems?

We use the Strangler Fig pattern: stand up new Spring Boot services behind an API gateway, migrate functionality incrementally, and decommission legacy components one at a time. Database schemas are versioned with Flyway, and we maintain backward compatibility throughout.

What about Kotlin — do you use it for backend?

Yes, we use Kotlin for Spring Boot projects when the team prefers it. Kotlin's null safety, coroutines, and data classes reduce boilerplate significantly. We choose based on team expertise and hiring strategy — both are first-class citizens on the JVM.

Ready to build with Java?

Let's architect a Java system that serves your business for the next decade.

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