Technology Services · Java

Enterprise Java, engineered for scale

We build robust, maintainable Java systems — from greenfield microservices to the careful, high-stakes work of modernising the legacy estates that keep your business running. Headquartered in London with a world-class engineering team in India, delivering enterprise Java systems for 500+ clients over a decade.

What we build

Java solutions we deliver.

Java sits alongside our Node.js and .NET backend practices as a core, actively maintained service — not a one-off capability we build up for your project.

Expert Team & Proven Experience

10+ years in the industry, with 500+ happy clients worldwide.

Microservices & Spring Boot APIs

Domain-driven microservices built on Spring Boot 3, designed for independent deployability, contract testing, and observability from day one.

Legacy Java Modernisation

Structured migration from Java 8 through to 17 or 21 — module system adoption, records, sealed classes, and the removal of deprecated APIs — without stopping your releases.

Enterprise Integration

Kafka event streaming, IBM MQ, REST and SOAP bridging — we untangle complex integration topologies and bring them under version control and monitoring.

Cloud-Native Java

Containerised JVM workloads on AWS, GCP, and Azure — GraalVM native image for cold-start reduction, right-sizing heap allocation, and Kubernetes-native scaling policies.

Enterprise Java development team at Dreams Technologies

Our approach

A decade of enterprise Java delivery, led from the UK

We’ve built Java systems at every scale: single-service greenfields, distributed platforms handling hundreds of millions of daily events, and careful modernisations of monoliths where the business can’t afford downtime. Building and shipping complex software since 2013, across 500+ enterprise clients, our London team manages everything client-facing, from discovery through delivery sign-off, while our engineering team in India handles the deep technical build: senior oversight without the cost of a fully Western dev team.

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Java 21 migration and Spring Boot modernisation approach

Where Java goes right

Spring Boot, Java 21, and a modernisation path that doesn’t stop your releases

Java is the most deployed enterprise runtime on the planet, and Java 21’s virtual threads alone collapse the performance case for reactive spaghetti code that’s made entire codebases unmaintainable. What’s changed is the delivery model around it: the Java teams that struggle today aren’t struggling because of the language — they’re struggling because the toolchain, the architecture patterns, and the team practices haven’t kept pace. We migrate Java 8 estates through to 17 or 21 using a Strangler Fig approach — module system adoption, records, sealed classes — incrementally, not in one risky rewrite. Clean module boundaries and a solid CI/CD pipeline mean your team ships features without archaeology every sprint, and we build to the LTS roadmap so what we ship today won’t create a migration crisis in three years.

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Java delivery process: discovery, sprints, testing, and deployment

Governance & process

Four delivery stages, quality gates, and a handover you can rely on

We audit your existing codebase, dependency tree, and deployment pipeline, and define the target architecture and migration risk register before a line of new code is written. Two-week sprints ship a working, tested increment at every close, with unit, integration, and contract tests wired into CI from sprint one — SonarQube quality gates, OWASP dependency checks, and load testing against real traffic profiles before any release. We deploy with zero-downtime blue-green or canary releases, and hand over full runbooks and architecture decision records so your developers take ownership on day one.

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By the numbers

A decade of proven Java delivery.

10+

Years of proven success

500+

Happy clients worldwide

20+

Products we have built

250+

Technical team members

Technologies we work with

  • Java 17 LTS
  • Java 21 LTS
  • Spring Boot 3
  • Spring Security
  • Hibernate & JPA
  • Apache Kafka
  • Docker
  • Kubernetes
  • GraalVM Native
  • Maven

Ready to modernise your Java estate?

Whether you’re planning a Java 21 migration, untangling a legacy monolith, or starting something new — we’re happy to take a look and tell you exactly what we see.

Client reviews

Rated 4.8 / 5 by the clients who hired us

Verified, independently collected on Clutch — not testimonials we picked ourselves.

4.8 9 verified reviews on Clutch Read every review on Clutch
“They quickly understood my needs and provided the knowledge and know-how on what must be done.”
Katrina A. Prentice Founder, Zak Health Ltd Mobile App Development · Jun 2024
“We're impressed with their collaboration and strong software engineering skills.”
Saleh Abdulla Software Engineer, BFA ERP System Development · Jul 2024
“I would gladly work with them again and recommend them to others without hesitation.”
Samuel Jean CTO, WishLay LLC Web App Dev & UI/UX Design · Nov 2023
“Dreamguys Technologies does everything right!”
Jacqueline Adamany President, IndieMe Marketplace, LLC UI Redesign · Jun 2023
“Dreams Technologies, UK & India is willing to listen and engage in the creative process.”
Executive, Harmonial Teletherapy Platform Development · Jun 2024
“The team is available and happy to help anytime.”
Rafi Ahmad Managing Director, Carbon C6 Web Portal Development · Jul 2018
“The entire Dreams Technologies, UK & India team displayed the highest level of professionalism.”
Hussain Al-Marzooq CEO, Apps House Software & Mobile App Development · Jul 2024
“Their approach was responsive to our needs, with prompt communication and proactive problem-solving.”
Cloud Nerve Founder, Cloudnerve Solutions Pvt Ltd Digital Strategy & IT Consulting · Jul 2024
“We see them as an extension of our team because their goals align with ours.”
CEO, Health Technology Firm Dev Team Extension · Nov 2017