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Java development services

Java development services

Outsource Java to a senior nearshore team, Spring Boot services, migrations, and JVM performance work, in your time zone.

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Applebees
KPMG
Mastercard
Microsoft
NetJets
Toyota
  • 15+
    years delivering software
  • 100+
    senior engineers across LATAM
  • 6-8h
    daily overlap with US teams
  • 6+
    Fortune 500 & global brands trust us
WHO WE ARE

A senior Java team you can outsource to

FusionHit is where US teams outsource Java without the cost and lead time of hiring in-house. Senior nearshore engineers, fluent in Spring Boot, Jakarta EE, and JVM performance tuning, work in your time zone as an extension of your team.

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WHAT WE DO

Java services we provide

One senior team across the full Java lifecycle, from a new service to a legacy migration.

Custom Java application development

Enterprise systems built to survive a decade of change, not just the first release.

Spring Boot microservices

Services split along real business boundaries, with the platform work that makes them operable.

Legacy modernization and Jakarta EE migration

Java 8 and 11 estates moved to a current LTS, including the javax to jakarta namespace change.

APIs and system integration

Kafka, REST, and messaging layers that connect Java systems to everything around them.

Cloud migration and containerization

Java workloads containerized and moved off WebLogic and WebSphere application servers onto AWS or Azure.

Code audits and JVM performance tuning

GC pauses, heap leaks, N+1 queries, and connection-pool exhaustion, diagnosed with evidence.

Why FusionHit

Why US companies outsource Java to us

Senior Java engineers

Vetted seniors fluent in Spring Boot, Hibernate, and the JVM, and approved by you before they start.

Real-time collaboration

Nearshore engineers on US hours, working live in your repo, your tools, and your standups.

Flexible engagement

Scale your Java team up or down as your roadmap and priorities move.

Integrated partnership

We work as an extension of your engineering and product teams, not a hands-off vendor.

CASE STUDIES

Java work that shipped

Explore All

Have a Java system to modernize or scale?

Talk to an expert. 30 minutes, no commitment.

Talk to an Expert
Engagement models

Engage a Java team the way that fits

Pick the model that fits how your team works today.

Staff Augmentation

Add senior Java engineers to your existing team, under your direction.

Dedicated Development Teams

A stable Java team that works only on your product, as an extension of yours.

Full Project Outsourcing

Hand us the Java build or migration end to end, from architecture to cutover and support.

Hire nearshore Java developers
Process

How we deliver Java, in your time zone

01

Discovery

Goals, existing Java code, and team gaps (30 minutes to start).

02

Proposal

Matched senior Java profiles in days, not weeks.

03

Build

Agile sprints, live demos, and reviews in your tools.

04

Support

Upgrades, maintenance, and enhancements after launch.

Client Voices

What US teams say about working with us

Real clients, on camera, on what it's actually like to work with us.

FusionHit's culture really is to ingrain with your company and understand your business drivers. If you're looking for an extension to your team, FusionHit is an absolute must-talk-to company.

Glass House Guide and APG Emerging Tech

Justin Cullifer

Founder

The team has been able to stay as a team for two years now. A single team, with nobody leaving. I've had a really stable team that I've seen grow in strength.

CSE Insurance Group

Mark Chequer

CIO

FAQ

FAQs about our Java development services

01

Why outsource Java development instead of hiring in-house?
Outsourcing gets you senior Java engineers in days instead of the 3-6 months a US hire takes, at 30-50% below domestic rates, and modernization work can scale down after cutover. If you would rather bring talent onto your own payroll, see hire Java developers.
02

How much does Java development cost?
It depends on team size, seniority, and engagement model (staff augmentation, a dedicated team, or full project outsourcing). Senior LATAM rates run 30-50% under US equivalents, with a line-item estimate on the first call and no hidden overhead.
03

Which JDK versions do you support?
Java 8 through the current LTS. We keep clients on LTS releases, Java 21 or 25, rather than chasing every six-month release, and we work across Temurin, Corretto, Zulu, and Oracle JDK.
04

Have you done a javax to jakarta migration on a production system?
Yes, and it is the step most teams underestimate. The namespace change touches every dependency, so we sequence it behind a test harness and ship it in stages rather than as one cutover weekend.
05

Can you break up our monolith without a rewrite or a code freeze?
Yes. We extract services along real business boundaries while the monolith keeps serving traffic, so each extraction ships and earns its keep before the next one starts.
06

How do you diagnose JVM problems in production?
GC pause analysis, heap dumps, thread dumps, and connection-pool instrumentation. Evidence first, then a ranked fix list with expected impact. We do not start by adding memory.
07

Do you have experience with GraalVM native image or virtual threads?
Yes, and we are candid about when they help. Native image pays off for short-lived containers and serverless; virtual threads help I/O-bound services. Neither fixes a badly structured application.
08

How fast can a Java team start?
We present matched profiles within days, you approve them, and most engineers onboard in under 2 weeks, compared to the 3-6 months a typical US hiring cycle takes.

Ready to build with Java?

Tell us what you're building, and we'll show you the Java team that can build it.

Trusted by leading teams

  • Mastercard
  • NetJets
  • KPMG
  • Applebees

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