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15+ Years · Java Enterprise · ISO 27001 · Spring Ecosystem

World-class Java
enterprise platforms.
Engineered to last.

From high-throughput fintech systems to Spring AI-powered intelligent applications - OKRUTI builds mission-critical Java platforms where performance, reliability, and security are non-negotiable.

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PaymentService.java
@Service
public class PaymentService {
 
  @Autowired
  private KafkaTemplate<String, PaymentEvent>
      kafkaTemplate;
 
  @Transactional
  public PaymentResult process(
      PaymentRequest req) {
 
    // AI fraud check via Spring AI
    var risk = fraudDetector.score(req);
    if (risk.exceeds(THRESHOLD))
      throw new FraudException();
 
    // Publish to Kafka
    kafkaTemplate.send(
      "payments", event);
  }
}
15+
Years on the JVM
Java 21
LTS - our production standard
500K+
Daily transactions processed
ISO
27001 certified security
Five deep capabilities

Where we go deep
on Java engineering.

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Spring Boot & Microservices
Domain-driven microservices on Spring Boot 3. Event-driven with Kafka, resilient with Circuit Breakers, observable with Micrometer. Built to scale horizontally from day one.
Spring Boot 3Apache Kafka Spring CloudDocker / K8s
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Spring AI & LLM Integration
Java-native AI with Spring AI - LLM API integration, RAG pipelines over your enterprise data, AI assistants, and intelligent automation without leaving the JVM.
Spring AIGPT-4o / Claude RAG / Vector DBLangChain4j
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API Development & Security
RESTful and event-driven APIs designed for enterprise scale - versioned, documented, secured with OAuth 2.0 / JWT, and observable from day one.
Spring SecurityOAuth 2.0 / JWT OpenAPI 3Spring WebFlux
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Legacy Java Modernisation
Automated migration from Java 8 monoliths to Java 21 microservices. We use static analysis, AST transformation, and incremental strangler-fig patterns to eliminate risk.
Java 21 MigrationStrangler Fig OpenRewriteCI/CD Gates
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Performance Engineering
JVM tuning, G1GC / ZGC optimisation, Kafka throughput maximisation, GridGain in-memory computing and connection pool tuning for sub-50ms API latency at scale.
JVM / GC TuningGridGain Kafka Streams<50ms SLA
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See Java in action
Our Java platform runs inside live fintech systems - ACH payment engines, VideoKYC at 500K daily cases, and real-time pricing at sub-50ms. Not demos. Production.
ACH Payment Platform → VideoKYC at 500K/day →
The Spring ecosystem

We don't just use Spring.
We live in it.

Full tech stack →
Spring Boot 3
v3.3 · LTS
Auto-configured, production-grade apps. Our default starting point for every Java service we ship.
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Spring AI
v1.0 GA
Java-native LLM integration - OpenAI, Claude, Ollama. RAG, chat memory, tool calling without leaving the JVM.
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Spring Security
v6.x
OAuth 2.0, JWT, method-level security, CSRF protection. Financial-grade API security built in.
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Spring Data / JPA
v3.x
Repository abstraction over PostgreSQL, MySQL and more. Hibernate ORM, query optimisation, auditing.
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Spring Kafka
v3.x
Event-driven microservices on Apache Kafka. Consumer groups, exactly-once semantics, dead-letter queues.
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Spring Cloud
2023.x
Service discovery, circuit breakers, config server, API gateway - the microservices plumbing done right.
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Spring Batch
v5.x
High-volume batch processing with restart, retry, skip, partitioned steps. Financial reconciliation workloads.
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Spring WebFlux
v6.x
Reactive, non-blocking APIs for ultra-high concurrency. Handles thousands of concurrent connections on minimal threads.
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Why OKRUTI

Java is not a choice we make.
It's the craft we've spent
15 years mastering.

01
Deep Spring ecosystem ownership
We don't use Spring Boot as a scaffold and forget it. We tune autoconfiguration, override defaults, write custom starters and contribute to the ecosystem.
02
AI-native Java with Spring AI
While others bolt Python AI services onto Java backends, we build AI directly in the JVM using Spring AI - same language, same team, same deployment pipeline.
03
Financial-grade reliability standards
Our Java work is in fintech - systems where downtime costs money and bugs create regulatory risk. That discipline shapes how we write, test, and ship every Java service.
04
ISO 27001 - security in every line
Spring Security is not an afterthought. OAuth 2.0, JWT, method-level authorization, and data encryption are designed into every API from the first commit.
05
No framework churn
We have been on the Spring ecosystem for 15 years. When you hire us, you get engineers who have seen Spring evolve from XML config to Spring Boot 3 - and know when to upgrade and when to wait.
Our full Java stack
Java 21 LTS Spring Boot 3 Spring AI Spring Security Spring Data JPA Spring Cloud Spring Kafka Spring Batch Spring WebFlux Hibernate 6 PostgreSQL Redis GridGain Docker Kubernetes Azure Maven / Gradle JUnit 5 Testcontainers
☕ 15 years on the JVM
We have not switched primary languages or frameworks in 15 years. That continuity means deep expertise, predictable delivery, and no hidden learning curves on your project.
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Outcomes from Java-engineered platforms
500K+
Daily KYC cases processed on our Java VideoKYC platform
<50ms
API latency on Spring Boot pricing engine at 100K+ daily transactions
3×
ACH payment throughput after Spring Boot microservices re-architecture
15+
Years of continuous Java enterprise delivery without a framework switch
Our Java stack

Technologies we use
on every Java engagement.

Java 21 LTS Spring Boot 3 Spring AI Spring Security Spring Kafka Spring WebFlux Apache Kafka Hibernate 6 PostgreSQL Redis / GridGain Docker / Kubernetes Microsoft Azure
Get in touch

Let's talk about your platform.

Whether it's a new Spring Boot build, a legacy modernisation, or something in between - tell us what you're working on and we'll respond within 24 hours.

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Location
Jaipur, India · Global delivery
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