Backend API Development for Scalable Web & Mobile AppsMarvellous Adekunle
I build reliable, scalable backend APIs that power web and mobile applications. I focus on clean architecture, secure authentication and clear API contracts that make products easy to maintain and extend. Clients work with me when they need backend systems that are production ready, not quick hacks.
What's included
Backend API Implementation
A fully implemented backend API that handles core business logic, data access and integrations, built to be reliable, secure and easy to extend.
Authentication & Authorization
Secure user authentication and role-based access control to ensure only the right users can access the right features.
Database Integration
Structured database setup and integration to safely store and retrieve application data, optimized for performance and scalability.
API Documentation
Clear, easy to use API documentation that allows frontend or mobile developers to integrate quickly and confidently.
Error Handling & Validation
Consistent input validation and error responses to prevent unexpected behavior and improve reliability across all API endpoints.
Deployment Ready Codebase
Clean, organized, and version-controlled backend code prepared for deployment to staging or production environments.
FAQs
I work on backend APIs for SaaS products, dashboards, mobile apps, internal tools, and early-stage startups.
Yes. I regularly collaborate with both frontend engineers and designers to ensure APIs are clearly documented for smooth frontend integration.
Yes. I can extend, refactor, or improve existing backend systems, as well as build new APIs from scratch.
I primarily use Java with Spring Boot and PostgreSQL, but the focus is always on choosing tools that fit the project’s needs.
Yes. I build with production in mind, including proper validation, error handling, and deployment readiness.
Starting at$5,000
Duration4 weeks
Tags
Docker
Java
PostgreSQL
Python
Spring Boot
Backend Engineer
Software Engineer
Web Developer
Service provided by
Marvellous Adekunle Ibadan, Nigeria
- 7
- Followers
Backend API Development for Scalable Web & Mobile AppsMarvellous Adekunle
Starting at$5,000
Duration4 weeks
Tags
Docker
Java
PostgreSQL
Python
Spring Boot
Backend Engineer
Software Engineer
Web Developer
I build reliable, scalable backend APIs that power web and mobile applications. I focus on clean architecture, secure authentication and clear API contracts that make products easy to maintain and extend. Clients work with me when they need backend systems that are production ready, not quick hacks.
What's included
Backend API Implementation
A fully implemented backend API that handles core business logic, data access and integrations, built to be reliable, secure and easy to extend.
Authentication & Authorization
Secure user authentication and role-based access control to ensure only the right users can access the right features.
Database Integration
Structured database setup and integration to safely store and retrieve application data, optimized for performance and scalability.
API Documentation
Clear, easy to use API documentation that allows frontend or mobile developers to integrate quickly and confidently.
Error Handling & Validation
Consistent input validation and error responses to prevent unexpected behavior and improve reliability across all API endpoints.
Deployment Ready Codebase
Clean, organized, and version-controlled backend code prepared for deployment to staging or production environments.
FAQs
I work on backend APIs for SaaS products, dashboards, mobile apps, internal tools, and early-stage startups.
Yes. I regularly collaborate with both frontend engineers and designers to ensure APIs are clearly documented for smooth frontend integration.
Yes. I can extend, refactor, or improve existing backend systems, as well as build new APIs from scratch.
I primarily use Java with Spring Boot and PostgreSQL, but the focus is always on choosing tools that fit the project’s needs.
Yes. I build with production in mind, including proper validation, error handling, and deployment readiness.
$5,000