You will get a scalable Spring Boot REST API with database integration
Project details
You will get a production-ready Spring Boot REST API designed with clean architecture, secure database integration, and scalable backend principles. With 13+ years of enterprise backend experience, I specialize in building high-performance microservices that are structured for maintainability and long-term growth.
Unlike generic API implementations, I focus on proper layering (Controller → Service → Repository), structured validation, global exception handling, and optimized data access patterns. The delivered solution includes Swagger documentation, basic unit tests, and clean, well-documented source code.
My goal is not just to make the API work — but to deliver a reliable, secure, and extensible backend foundation that supports your business growth.
Unlike generic API implementations, I focus on proper layering (Controller → Service → Repository), structured validation, global exception handling, and optimized data access patterns. The delivered solution includes Swagger documentation, basic unit tests, and clean, well-documented source code.
My goal is not just to make the API work — but to deliver a reliable, secure, and extensible backend foundation that supports your business growth.
Programming Languages
Python, Java, KotlinCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$99
|
Standard
$249
|
Advanced
$499
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 2 | 3 | 3 |
Number of Pages | 1 | 1 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$20
Additional API Endpoint
(+ 1 Day)
+$40
External API Integration
(+ 2 Days)
+$149
Cloud Deployment Assistance
(+ 2 Days)
+$180Frequently asked questions
About Harinatha Reddy
Senior Java Backend Engineer | Spring Boot | API & Performance Special
Hyderabad, India - 8:44 am local time
With 13+ years of experience in enterprise software development, I design high-performance REST APIs, modernize legacy applications, integrate third-party services, and optimize database performance for production environments.
Whether you need to refactor an unstable backend, improve API response times, integrate external systems, or deploy a secure cloud-ready application — I can deliver clean, maintainable, and scalable solutions.
Recent Impact: In a production system, I reduced API response time from ~5 minutes to under 1 minute by consolidating service calls, optimizing SQL queries, introducing parallel processing, and removing redundant logic.
Backend & API Engineering
Spring Boot microservices architecture
REST & SOAP API development and integration
Third-party API integrations (OAuth, API keys, webhooks)
Monolith to microservices transformation
Java upgrades (Java 8 → 17+)
Secure authentication & authorization flows
Background job processing & batch systems
High-volume XML/JSON processing
I focus on writing backend systems that are cleanly structured, testable, and easy to evolve.
Database & Performance Optimization
PostgreSQL, MySQL, and relational database design
Query tuning, indexing, and schema optimization
Large dataset processing
Flyway-based schema versioning
Data migration (legacy DB to PostgreSQL)
I approach performance issues systematically — profiling bottlenecks, optimizing queries, and ensuring efficient API-to-database interaction.
Cloud & Deployment
Docker containerization
Kubernetes deployments (GKE / AKS)
Google Cloud Platform & Microsoft Azure
CI/CD pipelines (Jenkins, Argo CD)
Environment configuration & secrets management
Monitoring and observability
I build backend systems that are not just functional, but production-ready.
Data & Integration Work
ETL workflows
CSV/XML data transformation
File-to-database integrations
API-to-API synchronization
Event-driven patterns (Kafka, Pub/Sub)
If your project involves moving, transforming, or synchronizing data — I can design efficient and reliable pipelines.
How I Work
Clear communication and ownership
Clean, well-documented code
Performance-first engineering mindset
Strong system design thinking
Fast response time
I’m comfortable stepping into existing codebases, identifying technical debt, stabilizing systems, and delivering measurable improvements.
If you're looking for a senior backend engineer who can take responsibility, solve complex backend problems, and deliver scalable solutions — I’d be happy to discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Harinatha Reddy can start the project.
Delivery time starts when Harinatha Reddy receives requirements from you.
Harinatha Reddy works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & Confirmation
Review provided specifications, clarify scope, confirm database structure, and finalize API contract before development begins.
API Development & Integration
Develop Spring Boot REST endpoints with validation, exception handling, service layer, and database integration following clean architecture principles.