Trusted by founders and growing teams

Spring Boot Development

Production-ready Spring Boot applications for business-critical systems in

About

Spring Boot remains one of the most widely used and security-focused backend frameworks in modern enterprise software. At H-Studio, we build production-ready Spring Boot applications using Java 17/21, modular architectures, and cloud-native tooling. Spring Boot is not limited to microservices — we deliver monoliths, modular monoliths, and services depending on the system’s needs. Our engineering team has over a decade of experience delivering backend platforms for fintech, telecom, banking, real estate, SaaS and enterprise digital products.

Why Spring Boot for Modern Products

Spring Boot is the foundation of countless enterprise systems because it provides:

consistent performance characteristics under load
mature tooling for distributed systems
strong security and authentication standards
high reliability for financial, operational and data-intensive products
flexibility to integrate with any modern frontend (React, Next.js, mobile, IoT)
seamless compatibility with cloud platforms (AWS, GCP, Azure, Hetzner)

We take these strengths further by combining them with modern DevOps, observability and microservice patterns.

Spring Boot Development Services

1. Spring Boot Application Architecture

We design Spring Boot systems that support long-term growth:

  • modular architecture and clear boundaries
  • clean domain logic (DDD where applicable)
  • asynchronous processing where needed
  • high-availability setups
  • service or module orchestration
  • stable API contracts

Your backend is designed as a structured, scalable core of your digital product.

2. Spring Boot Services & Event-Driven Integration

We build service architectures and event-driven integrations using:

  • Spring Boot services where architecture requires separation
  • Kafka / RabbitMQ event streams
  • asynchronous communication
  • fault-tolerant service interactions
  • idempotent processing & retry logic
  • monitoring & alerting at scale

Perfect for fintech, operations platforms, logistics, marketplaces and any product requiring high throughput.

3. High-Load Systems & Performance Engineering

We specialise in systems that must handle millions of events or requests. Our expertise includes:

  • thread & memory optimisation
  • database performance tuning (PostgreSQL, Oracle, MySQL)
  • caching layers (Redis)
  • rate limiting
  • performance monitoring
  • JVM optimisation
  • load testing & capacity planning

This helps your system maintain reliable performance under significant real-world demand.

4. API Engineering (REST, GraphQL, gRPC)

We build robust, secure APIs used by frontend apps, partners, mobile apps and internal tools:

  • versioned REST APIs
  • gRPC for high-performance internal communication
  • GraphQL where flexibility is essential
  • authentication & authorization
  • schema governance
  • validation & error handling

Our APIs are designed to remain stable as your product evolves.

5. Database Architecture & Data Workflows

We architect reliable data systems:

  • PostgreSQL, Oracle, MySQL
  • schema design & migrations
  • distributed transactions
  • data streaming & ETL
  • analytics-ready event logs

Your data becomes consistent, queryable and ready for analytics growth.

6. Cloud-Native Spring Boot on Kubernetes

We deploy large Spring Boot systems on:

  • Kubernetes (K8s)
  • AWS ECS/EKS
  • GCP GKE
  • Azure
  • Hetzner private clusters

With:

  • autoscaling
  • zero-downtime deployments
  • observability (Prometheus, Grafana, Loki)
  • CI/CD pipelines
  • service meshes

This supports controlled releases, reliability and operational stability.

7. Migration & Modernisation

We help teams modernise legacy Java applications:

  • migration to Spring Boot
  • restructuring monoliths into modular monoliths or microservices
  • upgrading Java versions
  • replacing outdated libraries
  • improving performance & reliability
  • redesigning data models

With a strong focus on minimizing downtime and preserving existing business logic.

Who We Work With

Our Spring Boot engineering is used by:

fintech & banking platforms
real estate & proptech products
logistics & operations systems
SaaS & B2B platforms
enterprise digital transformation projects
telecom & data processing companies

We support startups, SMEs and large enterprises across and the EU.

What Makes H-Studio Different

Enterprise engineering, startup speed

We combine the reliability of large-scale enterprise systems with the agility of modern product teams.

grade security & compliance

GDPR-compliant architecture, safe data flows and high-integrity systems.

Full-stack integration

Our backend integrates seamlessly with Next.js/React frontends, AI models, dashboards and automations.

Predictable delivery

Clear milestones, documentation, testing, monitoring and stable long-term maintenance.

FAQ

FAQ

Yes — we specialize in Java 17/21, Spring Boot 3.x, and modern Java features including records, pattern matching, and virtual threads. We also help teams migrate from older Java versions.

Yes — when microservices are the right fit. Spring Boot also supports modular monoliths and service-oriented architectures, and we choose the approach based on system needs.

Yes — we deploy Spring Boot applications on Kubernetes (K8s), AWS EKS, GCP GKE, Azure AKS, and Hetzner clusters with autoscaling, zero-downtime deployments, and full observability.

We optimize database performance for PostgreSQL, Oracle, MySQL, and other databases. This includes query optimization, connection pooling, caching strategies, and distributed transaction management.

Yes — we help teams migrate legacy Java applications to Spring Boot, modernize architectures, upgrade Java versions, and improve performance without downtime.

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

System performance, scalability, and security depend on architecture, infrastructure, usage patterns, and operational practices. No specific performance or availability guarantees are provided.