You will get a faster, cleaner Spring Boot backend fixed or refactored
Project details
You will get your Spring Boot backend inspected, fixed, optimized, or refactored so it is more reliable, maintainable, and easier to extend.
This project is ideal if you have a bug, slow API, messy service logic, security issue, database performance problem, or backend module that needs cleanup. Depending on the package, I can diagnose the issue, apply focused fixes, improve performance, add tests, and provide a clear handoff report.
What sets this project apart is my senior backend debugging experience. I do not just patch symptoms; I look for the root cause, keep the change focused, and explain what changed so your team can move forward confidently.
I have 13+ years of experience with Java, Spring Boot, PostgreSQL, microservices, Kafka, Docker, and production backend systems.
This project is ideal if you have a bug, slow API, messy service logic, security issue, database performance problem, or backend module that needs cleanup. Depending on the package, I can diagnose the issue, apply focused fixes, improve performance, add tests, and provide a clear handoff report.
What sets this project apart is my senior backend debugging experience. I do not just patch symptoms; I look for the root cause, keep the change focused, and explain what changed so your team can move forward confidently.
I have 13+ years of experience with Java, Spring Boot, PostgreSQL, microservices, Kafka, Docker, and production backend systems.
Programming Languages
JavaCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$199
|
Standard
$499
|
Advanced
$1,199
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 10 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $100Frequently asked questions
About Ponir
Senior Spring Boot Developer | APIs, SaaS, Kafka, AI/RAG Systems
Dhaka, Bangladesh - 4:44 am local time
I am a Principal Software Engineer and System Architect with 13+ years of experience delivering production-grade backend systems, distributed applications, and cloud-native products.
I can help you with:
- Spring Boot REST APIs and backend architecture
- Microservices modernisation and performance improvement
- Kafka/event-driven systems
- Spring Security, JWT, PostgreSQL, JPA, Redis, and Docker
- Angular + Spring Boot SaaS portals
- AI/RAG applications, document search, vector search, and LLM integrations
- Debugging difficult backend issues and improving existing systems
Recent portfolio work:
- Learning Orbit: AI-powered learning platform with Angular, Spring Boot, PDF/OCR processing, chapter-aware RAG, assessments, billing, notifications, and observability.
- Itinerary Builder: Multi-city travel itinerary and booking operations platform with admin, agent, and catalogue workflows.
- AI Ecommerce Search: Search platform using Spring Boot, OpenSearch, AI-assisted search intent, and product discovery features.
Selected results from my professional work include reducing API latency by 40%, improving database query performance by 35%, supporting 99.9% uptime during cloud migration, and reducing manual document processing by 70% through AI-assisted workflows.
I work best with clients who need clear technical decisions, clean architecture, reliable implementation, and steady communication.
Steps for completing your project
After purchasing the project, send requirements so Ponir can start the project.
Delivery time starts when Ponir receives requirements from you.
Ponir works on your project following the steps below.
Revisions may occur after the delivery date.
Inspect the code
I review the relevant Spring Boot modules, dependencies, logs, database flow, and current implementation style.
Reproduce the issue
I reproduce the bug or performance problem when possible, or identify the likely root cause from code and logs.