Java & Spring Boot DevelopmentEnterprise Java applications that stay fast, secure and maintainable.
Senior Java and Spring Boot engineers for enterprise applications, microservices and APIs, and for modernising older Java EE and Struts systems.
- Spring Boot
- Microservices
- Java modernisation
- Discovery Sprint1–4 weeks · Fixed price
- Java Application Build8–20 weeks · Fixed price per phase
- Java Modernisation6–16 weeks · Fixed price per phase
Why use Java and Spring Boot for enterprise software?
Java with Spring Boot is a long-standing enterprise choice: strong typing, mature tooling, excellent performance and a large ecosystem for security, messaging and data. Stack18 builds new Spring Boot applications and microservices and modernises older Java EE, Struts or monolithic systems to current Java versions with tests and cloud-ready deployment.
- Spring Boot developers India
- Java development company
- hire Java developers
- enterprise Java services
- Java modernization
Last reviewed 11 November 2026 by the Stack18 delivery team in Jaipur.Security & AI governancePricing
| What it covers | Spring Boot applications; Microservices and APIs; Java modernisation; Performance; Security and compliance; Cloud and DevOps. |
|---|---|
| Typical first step | Discovery Sprint: 1–4 weeks; fixed price. |
| Main engagement | Java Application Build: 8–20 weeks; fixed price per phase. |
| Main engagement | Java Modernisation: 6–16 weeks; fixed price per phase. |
| Measured by | P95 response time; Release frequency; Production incidents; Test coverage. Each against an agreed baseline. |
| Governance | Human approval at 5 governance gates before anything reaches production. NDA available on request. |
| Delivery team | Based in Jaipur, India. A senior specialist replies within one business day. |
You need this when…
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Java & Spring Boot Development, end to end.
The features and building blocks of a Java & Spring Boot Development engagement. Each is delivered by the same team on the Agentic SDLC, with your approval at every critical step.
Spring Boot applications
Enterprise applications with clean, layered architecture.
- Domain-driven design
- Spring Security
- JPA and Hibernate
Microservices and APIs
Services and APIs that scale independently.
- REST and gRPC
- Kafka messaging
- API gateway
Java modernisation
Older Java upgraded to current versions safely.
- JDK upgrades
- Struts to Spring
- Monolith decomposition
Performance
Tuning for high load and low latency.
- JVM tuning
- Caching
- Load testing
Security and compliance
Controls that pass enterprise and banking reviews.
- OWASP practices
- Audit logging
- Encryption
Cloud and DevOps
Containerised deployment with CI/CD.
- Docker and Kubernetes
- CI/CD
- Observability
A typical engagement, step by step.
Senior people lead every phase. Specialised AI agents on the Agentic SDLC handle the repetitive work, and nothing ships without your approval.
Discover
We map today’s process, systems and data for Spring Boot applications, microservices and APIs and Java modernisation, talk to the people who run it and agree the baseline for P95 response time and release frequency, so progress is measured from week one.
Design
We design the flows, roles, approvals and integrations for Spring Boot applications and microservices and APIs, and review a clickable prototype or technical design with the people who will use it before anything is built.
Build
We build in weekly demos, starting with Spring Boot applications, then microservices and APIs and Java modernisation. Each release is tested on your own data and passes a human approval gate before the next begins.
Launch
We migrate data, train your team and support go-live. After 30 days we review P95 response time and release frequency against the baseline and agree what to extend next.
How much does Java & Spring Boot Development cost in India?
Most Java & Spring Boot Development projects start with a Discovery Sprint (1–4 weeks, fixed price), which fixes the scope, team and price before you commit. Java Application Build takes 8–20 weeks at a fixed price per phase. Java Modernisation takes 6–16 weeks at a fixed price per phase. Prices exclude GST. Cloud hosting and third-party usage, such as messaging, payment or AI model charges, are paid at cost.
Discovery Sprint
Teams deciding what to build first for Java & Spring Boot Development, and what it should cost.
- Duration
- 1–4 weeks
- Pricing
- Fixed price
- Scoped plan and timeline
- Team and fixed price
- Process map or prototype
Java Application Build
Enterprises building new Java systems.
- Duration
- 8–20 weeks
- Pricing
- Fixed price per phase
- Weekly demos
- Automated tests
- Documentation
Java Modernisation
Teams running old Java versions or frameworks.
- Duration
- 6–16 weeks
- Pricing
- Fixed price per phase
- Upgrade plan
- Refactored code
- Regression suite
What drives the price
- Number of modules, workflows and user roles
- Integrations with your ERP, CRM, payments, GST or messaging tools
- Volume and quality of data to migrate
- Compliance, security and audit requirements
- Mobile apps, offline use or multiple languages
Always included
- Fixed scope and price before build starts
- Weekly working demos and human approval gates
- Training, documentation and 30 days of hypercare
- Your code, data and IP, owned by you
See Stack18 pricing or compare fixed price and time and materials.
What we have shipped, and what a typical engagement looks like.
Delivered projects link to the full case study. Illustrative scenarios describe typical engagements and are not named client results.
Cooperative bank
- Challenge
- A Struts-based loan system on Java 8.
- What we do
- Incremental migration to Spring Boot 3 on Java 21 with regression tests and containerised deployment.
- We would measure
- P95 response time, release frequency, production incidents, against a baseline agreed in week one.
14 weeks
Logistics enterprise
- Challenge
- A booking API failing at festival-season peaks.
- What we do
- Spring Boot services with caching and Kafka queues, load-tested at five times normal volume.
- We would measure
- P95 response time, release frequency, production incidents, against a baseline agreed in week one.
10 weeks
Ethnic wear D2C, Jaipur
- Challenge
- A ₹100+ crore brand needed website, app and back office to share one catalogue and one record of stock and orders.
- What we do
- Nine specialists built website, mobile app and ERP on one connected foundation in two-week sprints.
3 months
Read the case study →We agree targets before we start.
Free Java code review
Share read-only access. We report version, security and performance risks.
- Version risks
- Security issues
- Upgrade estimate
Java & Spring Boot Development questions.
Cost, timelines, integrations and ownership. If your question is not here, ask a senior specialist on a free 30-minute call.
Ask us anythingHow much does Java & Spring Boot Development cost in India?
Most Java & Spring Boot Development projects start with a Discovery Sprint (1–4 weeks, fixed price), which fixes the scope, team and price before you commit. Java Application Build takes 8–20 weeks at a fixed price per phase. Java Modernisation takes 6–16 weeks at a fixed price per phase. Prices exclude GST. Cloud hosting and third-party usage, such as messaging, payment or AI model charges, are paid at cost.
Can you work with our in-house Java team?
Yes. We often add senior engineers alongside client teams and follow your standards.
Do you upgrade from Java 8?
Yes. Upgrades to Java 17 or 21 with Spring Boot 3 are common, done incrementally with tests.
Java or Node.js for a new project?
Java suits complex, long-lived enterprise systems with strict typing needs; Node.js suits I/O-heavy APIs and fast iteration. We recommend per case.
Do you support on-premise deployment?
Yes, on-premise, private cloud or public cloud.
Do you provide Java & Spring Boot Development across India?
Yes. Stack18 is headquartered in Jaipur, Rajasthan, and delivers Java & Spring Boot Development for businesses across India, including Delhi NCR, Mumbai, Bengaluru, Pune, Hyderabad and Ahmedabad. Work runs remotely with weekly demos, and on-site workshops are arranged for key milestones.
Let's scope your Java & Spring Boot Development project.
Tell us where you are and where you want to be. A senior specialist will reply within one business day with next steps.
- Free 30-minute consultation
- Indicative estimate after the call
- NDA available on request