Senior Java/Spring Boot Developer
Java 21Spring BootHibernatePostgreSQLKafkaAWS
Available NowJava & Spring Boot
Hire Java Developers
Hire Java developers from Codazz — pre-vetted enterprise and microservices engineers, matched within 48 hours. NDA from day one, timezone-aligned, Spring Boot and cloud-native expertise.
- 70+
- Java Engineers
- 8+ Yrs
- Avg Experience
- 120+
- Java Apps Built
- 48hrs
- Start Time
- NDA signed before requirements are shared
- Interview pre-matched developers within 24 hours
- Timezone-aligned, full-time or part-time
- Replace or scale with two weeks notice
Get your custom project plan
Share your project details — a senior engineer responds within 4 hours.
NDA protected 24hr response Free consultation
Independently audited, certified and built to standards you can check
Why Codazz
Why Hire Java Developers From Us.
Vetting, timezone alignment and contracts that protect your IP — the same on every Java hire.
Vetted Java Experts
Every Java developer passes our 5-stage vetting: Spring Boot architecture challenge, system design, live pair programming with design patterns, culture fit, and reference checks. Only the top 3% qualify.
Timezone-Aligned
Our Java developers work in your timezone. Whether you are in New York, San Francisco, London, or Dubai, your developer is online when you are.
NDA From Day 1
Your IP is protected before a single line of code is discussed. Enforceable NDAs and data protection agreements are standard on every engagement.
Enterprise-Grade Code
Our Java developers build robust, maintainable enterprise applications with proper design patterns, SOLID principles, comprehensive testing, and production-ready deployment pipelines.
40-60% Cost Savings
Get senior Java developers at a fraction of US in-house costs. No recruitment fees, no benefits overhead, no office space required.
Seamless Integration
Your Java developer integrates into your existing tools — GitHub, Jira, Slack, Linear, Jenkins. They follow your coding standards and PR workflow from day one.
Available Talent
Meet Our Java Developers.
Java Microservices Architect
JavaSpring CloudKubernetesEvent-DrivengRPCRedis
Available NowFull-Stack Java Developer
JavaSpring BootReactAngularMySQLDocker
Available NowJava Cloud Engineer
JavaAWSGCPTerraformCI/CDMicroservices
Available in 1 weekWhen It Fits
When to Hire Java Developers.
Hire Java developers for enterprise systems that must run reliably for years: banking and insurance back ends, ERP integrations, order processing and large internal platforms. A big part of the work is modernising what already exists, moving old Java and Spring versions to supported releases without a risky rewrite.
Sample Project
Java 8 monolith upgraded to Java 21 and Spring Boot 3
A typical engagement: an older Spring application stuck on Java 8 is moved to a current LTS release, its build is modernised and the slowest modules are split out only where a separate team or scaling need justifies it.
- Java 8 to 21 upgrade with OpenRewrite recipes
- Spring Boot 2 to 3 and javax to jakarta migration
- Testcontainers integration tests for each module
- Containerised build and blue-green deploys
Stack
The Java Stack We Use, Layer by Layer.
| Layer | Technology | Why |
|---|---|---|
| Runtime & framework | Java 21 LTS, Spring Boot 3, Quarkus | Virtual threads and long-term support |
| Data | Spring Data JPA, Hibernate, Flyway, PostgreSQL or Oracle | Versioned schema changes |
| Messaging | Kafka, RabbitMQ | Reliable events between services |
| Testing | JUnit 5, Mockito, Testcontainers | Real databases in tests, not mocks |
Budget & Timeline
Java Pricing and Timelines.
Indicative ranges from typical scopes. You get a fixed quote after a free discovery call.
| Scope | Typical budget (USD) | Typical timeline |
|---|---|---|
| Senior Java developer in a blended offshore-hybrid team | $5,000–$10,000 / month | Start in 48 hours |
| US-based dedicated engineer (market benchmark) | $15,000–$25,000 / month | Local hiring cycle |
Cost guides with the full breakdown
Compare your options
Related services
Tech Expertise
Java Tech Stack.
Core Java
Java 17/21JVM InternalsStreams APIVirtual ThreadsRecordsPattern MatchingFrameworks
Spring Boot 3Spring CloudSpring SecurityHibernate/JPAQuarkusMicronautData & Messaging
PostgreSQLMySQLMongoDBKafkaRabbitMQRedisCloud & DevOps
AWSGCPAzureKubernetesDockerJenkinsTesting & Quality
JUnit 5MockitoTestcontainersSonarQubeCheckstyleJaCoCoArchitecture
MicroservicesEvent-DrivenCQRSDomain-Driven DesignREST APIsGraphQL
Rates
What does it cost to hire a Java developer?
| Region | Junior (USD/h) | Mid-level (USD/h) | Senior (USD/h) | Monthly (160 h, mid-level) |
|---|---|---|---|---|
| India | $15–$25 | $25–$40 | $35–$55 | $4,000–$6,400 |
| Eastern Europe | $20–$35 | $35–$55 | $50–$80 | $5,600–$8,800 |
| Latin America | $20–$35 | $35–$50 | $45–$75 | $5,600–$8,000 |
| Southeast Asia | $12–$20 | $20–$35 | $30–$50 | $3,200–$5,600 |
| US/Canada | $60–$100 | $100–$160 | $150–$250 | $16,000–$25,600 |
Work our Java engineers have shipped
FinTech
AI-Powered Trading Platform
Rebuilt a real-time trading engine for 100K+ users — sub-50ms latency and 99.99% uptime.
Read case studyHealthcare
Enterprise Telehealth Platform
A HIPAA-compliant patient platform that has handled 200K+ consultations and cut consultation time by 60%.
Read case studyE-Commerce
Enterprise E-Commerce Redesign
Redesigned checkout and storefront for 2M+ monthly visitors, tripling revenue with 1.2-second page loads.
Read case studyBefore you hire: related guides
Prefer a fully managed project? See our Enterprise software development.
You can interview pre-matched Java developers within 24 hours of sharing your requirements. Onboarding typically completes within 48 hours, so your new developer can start building immediately.
Our Java developers have a minimum of 4 years of professional experience with enterprise-grade applications. Most have 6-10+ years building Spring Boot microservices, distributed systems, and cloud deployments.
Yes. We have Java developers across multiple time zones who can align with US, European, Middle Eastern, and APAC business hours. Your developer will be online during your working hours.
Rates depend on seniority, the depth of Java specialization you need, and whether the engagement is full-time, part-time, or team augmentation. Pricing is scoped to the specific role and engagement model once we understand your requirements, with no hidden fees, recruitment charges, or long-term lock-in.
Absolutely. We sign enforceable NDAs on Day 1 before any project discussion begins. Your intellectual property and business ideas are fully protected from the first conversation.
Yes. Our engagement models are fully flexible. Add more Java developers as your project grows or scale down when a milestone is complete. No long-term contracts required.
In steps: first get the build and tests running on a current JDK, then apply automated OpenRewrite recipes for the Spring Boot 3 and jakarta namespace changes, then fix what is left by hand, shipping after each step so nothing big-bang reaches production.
Only where it pays. Most teams get more from a modular monolith with clear package boundaries. We extract a service when one part needs to scale or deploy on its own, or a separate team owns it.
Spring Boot has the largest ecosystem and talent pool, so it is our default. Quarkus or Spring native images are worth it when fast start-up and low memory matter, for example in serverless functions.
As of September 2026, agency-delivered market rates for senior software developers range from $30–$50/hour in Southeast Asia to $150–$250/hour in the US/Canada, and mid-level developers from $20–$35/hour to $100–$160/hour across the same regions. These are general market ranges, not a Codazz quote: specialist Java skills usually sit in the upper half of each range, and Codazz prices each role once we understand your requirements and engagement model.
Ready to Hire Java Developers?
Share your requirements. We will match you with pre-vetted java developers within 24 hours.