You will get secure and scalable SpringBoot backend API, Symfony and Android studio
Project details
You will get a robust, secure, and scalable backend API built with Spring Boot, tailored to your business needs. I specialize in designing clean architectures using modern technologies such as microservices, REST APIs, and secure authentication (JWT, Keycloak).
With hands-on experience in building enterprise applications (insurance systems, ERP, booking platforms), I focus on delivering high-quality, maintainable, and production-ready code.
I pay special attention to performance, security, and scalability, ensuring your application can grow with your business. Whether you need a simple API or a complex backend system, I provide a structured approach, clear communication, and reliable delivery.
• Clean and well-structured code
• Secure authentication & authorization
• Scalable architecture (ready for growth)
• Clear documentation and support
With hands-on experience in building enterprise applications (insurance systems, ERP, booking platforms), I focus on delivering high-quality, maintainable, and production-ready code.
I pay special attention to performance, security, and scalability, ensuring your application can grow with your business. Whether you need a simple API or a complex backend system, I provide a structured approach, clear communication, and reliable delivery.
• Clean and well-structured code
• Secure authentication & authorization
• Scalable architecture (ready for growth)
• Clear documentation and support
Programming Languages
PHP, Java, KotlinCoding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$70
|
Standard
$150
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 1 day | 5 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$25 - $50
Additional Page
(+ 1 Day)
+$20
Design Customization
(+ 2 Days)
+$25
Content Upload
(+ 1 Day)
+$15Frequently asked questions
About Olivier
Backend Java (Spring boot), Symfony
Bukavu, Congo, the Democratic Republic of the - 9:46 am local time
I help businesses design and develop reliable backend systems, REST APIs, and web/mobile applications with a strong focus on clean architecture, security, and scalability.
💡 With hands-on experience in enterprise projects such as insurance systems, ERP platforms, and booking applications, I deliver solutions that are production-ready and easy to maintain.
🔧 What I can do for you:
Build robust backend systems with Spring Boot (Java)
Develop secure APIs with JWT & Keycloak authentication
Create web applications using Symfony (PHP)
Develop mobile applications with Android Studio (Kotlin)
Design scalable microservices architectures
Integrate databases (MongoDB, PostgreSQL)
✅ Why work with me:
Clean, well-structured, and maintainable code
Strong focus on security and performance
Clear communication and on-time delivery
Ability to work on both new and existing projects
I am committed to helping you build reliable and scalable solutions that support your business growth.
Steps for completing your project
After purchasing the project, send requirements so Olivier can start the project.
Delivery time starts when Olivier receives requirements from you.
Olivier works on your project following the steps below.
Revisions may occur after the delivery date.
Project analysis
Review requirements, define architecture and technical approach
Backend development
Build REST API, database structure and core business logic