Hire a Java Developer for Spring Boot and Enterprise Systems
Add a dedicated Java developer who builds Spring Boot APIs and microservices, keeps legacy Java systems running and modernizes them step by step, working inside your team.
- Spring Boot and microservices
- Legacy upgrades and modernization
- Your Jira, Slack and GitHub
- NDA and full code ownership
Rated 5.0 on Clutch & 4.8 on GoodFirms by verified clients in the USA, UK, Australia, Europe & India
Hire a Java developer
Takes 60 secTell us the role. You will get matched developer profiles within 48 hours.
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Your request is with our team. A senior developer will reply within 24 hours with questions or a first estimate.
Continue on WhatsAppJava developers for systems that cannot go down
Java runs order processing, billing, ERP integrations and internal platforms that businesses depend on every day. When you hire Java developer talent from Ecomsolver, you get an engineer who writes clean Spring Boot services and also respects the older code that keeps your operations running.
Our Java developers build REST and GraphQL APIs, event-driven services with Kafka or RabbitMQ, and batch jobs that move data between systems. They work with PostgreSQL, MySQL and Oracle through JPA and Hibernate, write tests with JUnit and Testcontainers, and deploy with Docker and Kubernetes on AWS, Azure or GCP.
Many clients come to us with an existing Java application on an old framework or Java version. Your developer can document it, add tests, upgrade dependencies and break out services gradually. They join your stand-ups during overlapping hours, work in your Jira and GitHub, and communicate clearly in English.
What your Java developer can work on
Spring Boot APIs
Design and build secure REST or GraphQL APIs with Spring Boot, Spring Security and OAuth, with validation, documentation and tests that make the service easy for other teams to use.
Microservices and messaging
Split large applications into services where it makes sense, connect them with Kafka or RabbitMQ, and add tracing and monitoring so issues are easy to find.
Legacy modernization
Upgrade old Java versions, move from Struts, JSP or older Spring setups to Spring Boot, and replace outdated libraries in planned steps without halting business operations.
Database and performance work
Tune slow queries, fix N+1 problems in Hibernate, add caching with Redis and profile memory and thread issues that cause timeouts under load.
Enterprise integrations
Connect your Java systems with ERP, CRM, payment gateways, ecommerce platforms and third-party APIs, with retries and error handling that keep data consistent.
Cloud and CI/CD
Containerize applications with Docker, deploy to Kubernetes or managed services on AWS, Azure or GCP, and set up build pipelines with automated tests.
- Java
- Spring Boot
- Spring Security
- Hibernate
- JPA
- Maven
- Gradle
- Kafka
- RabbitMQ
- PostgreSQL
- Oracle
- Redis
- Docker
- Kubernetes
We fix it, fine-tune it, then add AI and automation.
Most clients come to us with something already running: a store that is slow, an app that crashes, code nobody wants to touch. We stabilise it first, then add the AI features that save time and earn money.
Fix
A code and infrastructure audit of your Java product, then the fixes that matter most.
- Bugs, crashes and broken integrations
- Security patches and outdated versions
- Code nobody can maintain
Fine-tune
Make it fast, stable and easy to change, without a risky rewrite.
- Speed, caching and database tuning
- Tests, CI/CD and monitoring
- UX fixes where users get stuck
Add AI & automation
Practical AI built into the Java product you already have.
- AI search and assistants over your own data
- Content, document and support automation
- AI agents that work with your tools
Your developer can start within days.
No recruitment fees, no long contracts. You interview and approve every developer.
Share your requirements
Tell us the skills, seniority, hours and time zone you need. It takes two minutes.
Get matched profiles
We shortlist vetted developers who fit your stack and send their profiles within 48 hours.
Interview and choose
Run your own technical interview or test task. You only hire someone you are confident in.
Start and scale
Your developer joins your tools and stand-ups. Scale up, down or replace whenever you need.
Hire the way that suits your budget.
Every option includes NDA, full code ownership and a dedicated account manager.
Full-time
Best for ongoing products and long-term roadmaps.
- Works only on your project
- Your time zone and tools
- Daily stand-ups and reports
- Free replacement if not a fit
Part-time
Best for steady work that does not need a full-time person.
- Fixed weekly hours
- Same senior developer every time
- Flexible task priorities
- Upgrade to full-time anytime
Hourly
Best for fixes, small features and short-term help.
- No minimum commitment
- Billed for actual hours
- Quick start on urgent tasks
- Detailed time logs
Why hire Java developers from Ecomsolver
Tested on backend fundamentals
We screen for Java concurrency, data modeling, testing and API design through a practical task, not just framework familiarity.
Careful with live systems
Our developers work in small, reviewed changes with tests and rollback plans, which matters when the code handles orders, payments or payroll.
Time-zone overlap
Your developer keeps regular overlap with your team for stand-ups, code reviews and incident calls, and communicates in clear English.
Replacement and handover
If the developer is not the right fit, we bring in a replacement and arrange a documented handover so knowledge stays with your project.
Teams that keep working with us, year after year.
Verified reviews from Clutch, GoodFirms, LinkedIn and long-term clients in the USA, UK, Australia, Europe and India.
Hiring Java developers: FAQs
Ask us on WhatsApp. A real person replies, usually within minutes during working hours.
Ask on WhatsAppWhat experience should I expect when I hire a Java developer?
Expect solid Java and Spring Boot skills, experience with relational databases and ORMs, comfort with testing and Git workflows, and exposure to cloud deployment. For legacy work, look for someone who has upgraded older Java applications. We match developers to your stack and you interview them before deciding.
Can your developer work on our old Java application?
Yes. The developer first sets up the project locally, maps how it is built and deployed, and documents risky areas. Then they fix issues, add tests around critical paths and plan upgrades so the application becomes easier and safer to change.
Do your Java developers also build Android apps?
Android work today is mostly Kotlin, and we staff it separately with dedicated Android developers. If your project needs both a Java backend and an Android app, we can provide developers for each who coordinate on the API.
How do you handle access to production systems?
We follow your access policies. Most clients give developers access to development and staging environments, with production access limited or reviewed. The NDA covers your code and data, and the developer uses the VPNs, accounts and security tools you provide.
Can I scale from one Java developer to a small team?
Yes. Many clients start with one developer and add more as work grows, such as a second backend developer, a front-end developer or QA. Each new developer is vetted the same way and onboarded by the team already working with you.
