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Java & Spring Boot Consulting

Technical support for new and existing Java systems.

We develop new backend services, take over existing Java applications and work directly with engineering teams on architecture, performance, integration and production challenges.

Discuss your Java project Explore how we work
Java Spring Boot REST APIs PostgreSQL Microservices Docker

JAVA CONSULTING SERVICES

Where can we support your Java project?

The scope depends on the current state of the codebase, the structure of your team and the problem that needs to be solved.

Spring Boot API development

We build REST APIs, business services and backend applications for mobile products, web platforms and enterprise systems.

Existing Java project takeover

We review the codebase, dependencies, database and deployment process so that we can continue development from the current state with controlled and visible steps.

Modernisation and version upgrades

We modernise outdated Java and Spring versions, ageing dependencies and application structures that have become difficult to maintain.

Architecture review

We evaluate modular monolith and microservices options based on the product, engineering team, deployment requirements and actual business boundaries.

Performance and production issues

We investigate slow queries, high resource usage, memory issues, thread management, timeouts and bottlenecks that appear under production load.

Integrations and security

We connect Java services with CRM, ERP, payment platforms, mobile applications and third-party APIs while addressing authentication, authorisation, validation and error handling.

NEW PROJECTS AND EXISTING SYSTEMS

We can build a new backend or join an existing Java system.

Our Java development services cover Java backend development, enterprise Java development, Java application modernisation and focused support for an existing Java application.

New Java backend development

  • Technical scope and service boundaries
  • Spring Boot project setup
  • REST API and business logic development
  • Database modelling
  • Third-party and enterprise integrations
  • Testing and CI/CD preparation
  • Production readiness
  • Technical documentation and team handover

We can take responsibility for a defined backend scope or work together with your internal product and engineering teams throughout delivery.

Existing Java application support

  • Codebase and architecture review
  • Technical debt prioritisation
  • Bug fixing and feature development
  • Java and Spring version upgrades
  • Database and performance improvements
  • Deployment and production troubleshooting
  • Documentation of critical application flows

We begin by understanding the existing system before proposing large architectural changes or committing to a delivery plan.

ENGAGEMENT MODELS

Different ways to work with our Java team.

The right model depends on the condition of the system, the responsibilities of your internal team and the first outcome that needs to be delivered.

  1. 01

    Project-based delivery

    We plan and deliver a defined backend, service, integration or modernisation scope.

  2. 02

    Java developers for an existing team

    Our Java developers join your existing sprint, repository, code review and release processes.

  3. 03

    Technical assessment and roadmap

    We review the codebase and infrastructure, identify risks and create a practical sequence of improvements.

TECHNICAL APPROACH

Technology decisions based on the needs of the system.

Our Spring Boot consulting starts with the current application and production context. Where Java microservices consulting is relevant, we assess the operational impact instead of treating microservices as the default.

  1. 01

    Java and Spring ecosystem

    We work with Java, Spring Boot, Spring Security, Spring Data and, where the system genuinely requires it, relevant Spring Cloud components.

  2. 02

    Databases and data access

    We work with PostgreSQL, MySQL, Oracle or the database already used by the application, addressing data models, queries, transactions and migration requirements.

  3. 03

    Deployment and observability

    We consider Docker, CI/CD, logging, monitoring and error tracking as part of the application's production requirements rather than separate afterthoughts.

  4. 04

    Testing and maintainability

    Unit and integration tests, code review, clear module boundaries and technical documentation help the system remain understandable and maintainable for the team.

WORKING PROCESS

How do we start working on a Java project?

We keep the first step proportionate to the problem. An existing application may need a focused technical review, while a well-defined new service may move directly into scope planning.

  1. 01

    Understand the current situation

    We discuss the business need, users, existing codebase, system dependencies and the problems the team is currently facing.

  2. 02

    Review the technical context

    Where needed, we review the repository, architecture, database, logs, deployment setup and critical application flows.

  3. 03

    Define the first scope

    We agree on priorities, responsibilities, the engagement model and the first deliverable or improvement area.

  4. 04

    Develop and deliver

    We join the existing development process or deliver the agreed scope with testing, documentation and release preparation.

SUPPORTING SERVICES

Backend work can be combined with product interfaces, mobile applications, delivery planning and production operations.

01

Web Application Development

We build web products, operational panels and customer portals that use Java backend services.

 02

DevOps

We support deployment, CI/CD, monitoring and production operations for Java applications.

 03

Software Consultancy

We provide broader support for architecture decisions, technical assessment and delivery planning.

 04

Mobile App Development

We develop mobile products that connect securely to Java and Spring Boot APIs.

FREQUENTLY ASKED QUESTIONS

Java consulting questions.

Java consulting can include new Spring Boot development, existing application takeover, architecture reviews, version upgrades, performance improvements, integrations and production support.

Yes. We first review the codebase, dependencies, database, deployment setup and current backlog. We then identify the main risks and define a controlled initial scope before continuing development.

Yes. Our developers can work within your existing sprint, repository, code review and release processes instead of operating as a separate delivery team.

Yes. We review the Java version, Spring Boot version, dependencies, tests and potential breaking changes, then divide the upgrade into controlled and testable steps.

Where there is a clear technical or organisational reason, yes. We do not recommend microservices by default. The decision should consider business boundaries, system size, traffic, team structure and operational cost.

For existing applications, we can begin with a focused review of the code, architecture and infrastructure. This helps establish a more accurate scope, risk assessment and sequence of work.