Hire Java developers for Spring Boot services and enterprise systems
Hire Java developers from our in-house team in India to build Spring Boot services and APIs, connect your ERP and CRM, and move older Java applications onto current versions. They work in your repositories, tracker and CI, and you interview and choose every one of them.
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What a dedicated Java developer does
Most Java hires join a system that already runs the business, so the work is as much about integrations and upgrades as new code.
- What does a dedicated Java developer do?
- A dedicated Java developer is a full-time engineer who works only on your product, building and maintaining applications in Java, most often with Spring Boot. Typical work includes backend services and REST APIs, integrations with ERP and CRM systems, upgrades from older Java versions and frameworks, and the support of systems already in production.
What our Java developers build
Backend services, integrations and upgrades across new builds and systems that have run for years.
Spring Boot microservices
Our developers split services by business domain, give each its own database, and release them in containers through your CI/CD pipeline.
REST and GraphQL APIs
They build versioned APIs with OpenAPI documentation, Spring Security authentication and contract tests for every consumer.
See API developmentEnterprise integrations
Their Java services connect to SAP, Salesforce and Microsoft Dynamics through the published APIs, with queues where volumes are high.
See enterprise software developmentLegacy Java upgrades
Move Java 8 code, Struts, EJB and old Spring XML applications onto current Java and Spring Boot, with tests guarding each step.
See legacy modernisationAndroid apps in Java and Kotlin
They build Android apps and rugged handheld software, including barcode scanning and offline data on the device.
See the SHG Group case studyMaintenance and support
They fix bugs, update dependencies, apply security patches and tune performance on Java systems already in production. Mixed estates can add .NET developers for the Microsoft side.
Legacy Java modernisation paths we run
Many Java hires start with a system that already runs the business. These are the four paths we take most often, and each keeps the old system live until the new one is proven.
Java 8 to a current LTS release
Upgrade the build, libraries and runtime in stages, with the test suite run on every step before production moves.
Struts or EJB to Spring Boot
Rewrite one module at a time on Spring Boot while the old application keeps serving the rest.
Monolith to services
Route one feature at a time to a new service, so the monolith shrinks gradually while it stays in production.
App server to containers
Move applications off WebLogic, WebSphere or a self-managed Tomcat into containers on AWS, Azure or GCP. DevOps engineers can set up the clusters and pipelines alongside.
How we vet Spring Boot developers
Every Java developer is a salaried employee on the ScalaCode payroll in India. These checks apply before a profile reaches you and after the developer joins.
Java technical interview
Questions on the versions and frameworks you run, from Java 8 and older Spring to current Spring Boot, JPA and SQL.
Live coding exercise
A working change in Java, reviewed for structure, tests and how the developer explains the trade-offs.
Earlier work checked
Past Java builds, integrations and upgrades are reviewed before we put a developer forward.
You interview and choose
Your team tests Java depth, domain knowledge and communication, and nobody joins until you choose them.
Tests and staging
Automated tests run on every change, and releases go through staging before they reach your users.
Cost to hire Java developers
Dedicated Java developers start from $1,799 a month, full-time. Senior developers start from $2,499 and tech leads from $3,499.
| Dedicated team | Fixed-scope project | Team extension | |
|---|---|---|---|
| How it is priced | From $1,799 a month per engineer, full-time | Fixed quote after a free discovery sprint | Billed monthly per engineer |
| Best for | Ongoing roadmap work on a Java product | A defined build with agreed milestones | A specific skill gap in a team you already run |
| Who manages day to day | You, inside your process | ScalaCode, against agreed milestones | Your leads, with our engineers reporting in |
Monthly means full-time and dedicated, 160 hours. Compare every option on the Engagement models page.
Hire a Java developer in four steps
A business consultant reads your brief first, so the profiles you see fit the system you run today. If a developer does not meet expectations, we share new profiles at no cost.
Still running Java 8 in production
Tell us the versions, the app server and what breaks. We will match a developer who has upgraded a system like it.
The Java and Spring stack our developers work in
Our developers cover long-running Java estates and current Spring Boot on the cloud.
GymFit: a personalised fitness platform on AWS microservices
ScalaCode built GymFit, a web-based fitness and sports platform on AWS microservices. Users get exercise recommendations with video tutorials, diet plans matched to their metrics and goals, and calendar reminders, with premium tools on a subscription.
microservice hosting
SHG Group: MEDITECH materials management migrated to Android handhelds
ScalaCode migrated MEDITECH materials management software for SHG Group from Windows-based handhelds to Android. The new app runs on Zebra devices and uses barcode scanning for storeroom management, inventory counts, supply distribution and patient charge reporting.
Android handhelds
14 years of building and maintaining business software
projects shipped since 2012
clients across 45+ countries
AI systems running in production
years building software, since 2012
Rated 4.8/5 by the clients we build for
Verified reviews from Clutch and GoodFirms, and clients on camera.
33 verified reviews on Clutch
Clutch review★★★★★“They understood the business side of our requirements and often brought up solutions or ideas we hadn't considered.”
GoodFirms review★★★★★“Scalacode delivered a secure, scalable, and efficient platform exceeding our expectations.”
Trustpilot review★★★★★“The application was basically built from scratch, and was complicated, as the software was to be integrated with a certain Medical EHR software.”
Clutch review★★★★★“Working with ScalaCode was a rewarding experience. They brought structure, innovation, and a deep sense of partnership to the project, helping us take a meaningful step forward in how we manage and support our growing product ecosystem.”
Clutch review★★★★★“What set ScalaCode apart was their deep understanding of both the technical and practical aspects of our industry.”
Clutch review★★★★★“Their team quickly adapted and implemented updates without disrupting operations.”
GoodFirms review★★★★★“They translated complex requirements into an intuitive, scalable solution.”
Hire Java developers FAQs
Bring your Java version, app server and hosting setup to the call.
How much does it cost to hire a Java developer in India?
Dedicated Java developers in India start from $1,799 a month for a mid-level engineer, $2,499 for a senior engineer and $3,499 for a tech lead. Each rate is full-time, 160 hours a month, billed monthly. Fixed-scope work starts with a free discovery sprint.
Can your developers upgrade us from Java 8 to a current Java version?
Yes. We upgrade the build tooling and libraries first, then the runtime, with the test suite run at every step. Where tests are thin, the developer adds them around the code being changed before the upgrade starts, and the old version stays in production until the new one is proven. On a large codebase, AI code optimization can find deprecated APIs and risky modules before the upgrade starts.
Do your Java developers work with Spring Boot and microservices?
Yes. Most of our new Java work is on Spring Boot, using Spring Security, Spring Data JPA and Kafka or RabbitMQ for messaging. We split services only where a domain needs to scale or release on its own, because a well-structured monolith is cheaper to run for many products.
Can your Java developers integrate with SAP, Salesforce or Microsoft Dynamics?
Yes. Our developers connect Java services to SAP, Salesforce and Microsoft Dynamics through their published APIs, and use queues where order or record volumes are high.
How do you vet Java developers?
Every developer is a salaried member of our in-house team who passed a Java technical interview and a live coding exercise. We review earlier builds and upgrades before a profile reaches you, and you run your own interview before anyone joins. Read why teams choose ScalaCode for more on how we hire and keep engineers.
How fast can a Java developer start?
Matched profiles reach you within 48 hours. After you interview and choose, onboarding takes about a week, so the developer usually starts on your codebase around two weeks after the first call.
Can we interview the Java developer first?
Yes. You interview the shortlist for Java depth, domain knowledge and communication, on your schedule, and you can add your own coding test. If none of them fit, we send more profiles.
Who owns the code?
You do, from the first commit. We sign an NDA, the developer commits to your repositories, and the IP is assigned to you under the engagement terms.
Which time zones do your Java developers cover?
Our developers work from India and overlap with US, UK and European business hours. For US clients the standard overlap is 4 to 6 hours of the US working day.
Your engineers work in your hours
Timezone overlap is built in. Your matched engineers keep 4 to 6 hours of daily overlap with US hours and a full working day with the UK, Europe and the Middle East, so standups, reviews and fixes land during your working day.
Working with ScalaCode was a fantastic experience, marked by their expertise and support.
Tell us about the Java system and we will send developers who fit it
- Profiles matched on Java version, frameworks and domain
- You interview and choose who joins
- You commit only after you have chosen
“Their approach, dedication and project execution played a critical role in TipStars' success.”
James Ellis, Founder, TipStars