Most enterprise Java is not a greenfield project. It is a platform that has grown for years, carries the business, and has to keep changing. We build new Java and Spring applications, and we are equally at home extending systems that are large, old and critical.

Backend development and APIs

We design and implement Spring Boot services and the APIs around them: REST and event-driven interfaces, validation, error handling, versioning and documentation that other teams can rely on. Domain-driven design where the domain is complex, and plain code where it is not. A modular monolith is often the right answer; microservices when independent deployment and scaling justify the operational cost.

Spring, Jakarta EE, Quarkus, and Java or Kotlin

We work across the whole enterprise JVM, not only one framework. Spring and Spring Boot for most new services and for the large Spring estates many companies run. Jakarta EE (CDI, JAX-RS, JPA, JMS, Bean Validation) on modern runtimes such as WildFly, Payara or Open Liberty, for organisations standardised on the specification. Quarkus where fast start-up, low memory and container or native-image deployment matter. And Kotlin alongside Java, for teams that want a more concise language on the same JVM, libraries and tools.

We help you choose on the merits of your system and your team, and we are equally comfortable maintaining what you already run.

Data access with Hibernate and SQL

Many Java performance problems are data access problems: N+1 queries, oversized fetch graphs, missing indexes, long transactions, lock contention. We work at both levels, the JPA mapping and the SQL it produces, and we read execution plans. The result is persistence code that is correct under concurrency and predictable under load.

Performance engineering

We start from measurement: Java Flight Recorder, async-profiler, GC logs, database statistics and production metrics. Then we change what the evidence points to, and measure again. Typical results are lower latency, higher throughput and smaller infrastructure bills, but we only report numbers we have measured on your system.

Code quality and testing

We make codebases safer to change: characterization tests around legacy behaviour, Testcontainers for realistic integration tests, architecture rules that stop the structure from eroding, and refactoring in small steps that each leave the build green. Quality work is tied to the parts of the system that change most, where it pays back fastest.

Long-term product development

For product companies and internal platforms, we can take ownership of a component or a feature stream over months or years: planning with your product owners, delivering in increments, and keeping documentation and knowledge inside your team.

What changes for you

New features delivered by engineers who understand the whole system, not just a ticket
Faster response times and lower infrastructure cost, proven with measurements
A codebase that is easier to test, change and hand over
Fewer production incidents caused by data access, concurrency or integration bugs

Technologies we work with

Java 17 · 21 · 25
Spring Boot 3 · 4
Spring Framework · Spring Data · Spring Security
Jakarta EE · CDI · JAX-RS · JPA · JMS
Quarkus · GraalVM native image
Kotlin · coroutines
Hibernate · Jakarta Persistence
PostgreSQL · Oracle · SQL Server
Apache Kafka · RabbitMQ
JUnit 5 · Testcontainers · ArchUnit
JFR · async-profiler · Micrometer

Ways to start

Java Architecture & Health Assessment
A fixed-scope review of an existing Java system that ends with a prioritized technical action plan.
For
CTOs, Heads of IT and engineering managers responsible for a business-critical Java application
Typical engagement
Typically 2–4 weeks, fixed scope
Engagement model
Fixed-scope technical assessment
Details
You depend on a Java platform but have no clear picture of its risks, or of where to start improving it.
What we do
- Interviews with developers and operations
- Code and dependency analysis, including known vulnerabilities
- Review of architecture, data access and integrations
- Targeted profiling of critical paths
- Review of build, deployment and basic security practices
Deliverables
- Written report with risks ranked by likelihood and impact
- Prioritized roadmap for the next 3, 6 and 12 months
- Options for each major area (upgrade, refactor, replace) with indicative effort
- Presentation to management and to the technical team
Expected benefits
- An informed decision instead of a guess
- A budget you can justify internally
- Quick wins identified early
What we need from you
- Read access to the source code
- Access to a test environment or to production metrics
- One technical contact on your side
Request an assessment
Enterprise Java Performance Optimization
Measurement-led diagnosis and targeted fixes for slow Java applications and rising infrastructure costs.
For
CTOs and Heads of IT responsible for performance-sensitive Java systems
Typical engagement
Typically 1–3 weeks
Engagement model
Fixed-scope diagnosis, then time and materials for fixes
Details
The application is slow, timeouts appear under load, and infrastructure costs keep rising.
What we do
- Measurement with APM tools, Java Flight Recorder and async-profiler
- Query and ORM analysis: N+1 queries, fetching strategies, caching
- Tuning of garbage collection, thread pools and connection pools
- Load tests that reproduce real traffic
- Targeted fixes where the evidence points
Deliverables
- Measured baseline
- Fixes implemented and reviewed
- Before-and-after comparison measured on your system
Expected benefits
- Lower latency and higher throughput, where the measurements allow it
- Infrastructure sized to real needs
- Knowledge of where the next bottlenecks will appear
What we need from you
- A production-like environment or access to production metrics
- Access to source code and database statistics
We do not promise improvement figures in advance. We report results measured on your system.
Improve your application's performance
New Product Engineering
Design and delivery of a new product, feature or integration, from architecture to production.
For
Founders, product owners and CTOs
Typical engagement
Typically a 1–2 week discovery, then delivery in milestones
Engagement model
Fixed-scope discovery, then milestone-based delivery
Details
You need to build a new product, a major feature or a complex integration, and it has to be right the first time.
What we do
- Discovery of requirements, constraints and risks
- Architecture and technical design
- Backend development with Spring Boot
- Frontend development with React and TypeScript
- CI/CD, observability and security built in from the start
Deliverables
- Software running in production
- Architecture and operations documentation
- Handover to your team, or continued development
Expected benefits
- One accountable team from design to production
- Fewer surprises at go-live
- A codebase your team can own
What we need from you
- A product owner available for decisions
- Access to the systems to be integrated
Discuss your product

Talk about your Java platform

Discuss your project

01Backend development and APIs

02Spring, Jakarta EE, Quarkus, and Java or Kotlin

03Data access with Hibernate and SQL

04Performance engineering

05Code quality and testing

06Long-term product development

What changes for you

Technologies we work with

Java Architecture & Health Assessment

What we do

Deliverables

Expected benefits

What we need from you

Enterprise Java Performance Optimization

What we do

Deliverables

Expected benefits

What we need from you

New Product Engineering

What we do

Deliverables

Expected benefits

What we need from you

Talk about your Java platform

Backend development and APIs

Spring, Jakarta EE, Quarkus, and Java or Kotlin

Data access with Hibernate and SQL

Performance engineering

Code quality and testing

Long-term product development