Parcourir les catégories
Explorer
Fiverr Pro
Français
$
USD
I will maintain, upgrade and improve your existing app or website
Full Stack Software Engineer
Senior Full Stack Software Engineer with over 12 years of experience designing, building
and leading enterprise web, mobile and SaaS products. Experienced across fintech,
insurance, government and s...
À propos de ce service
Need a reliable developer to maintain, upgrade, or improve your existing application?
Keeping an application running smoothly requires more than fixing bugs. As technologies evolve, software needs regular maintenance, performance improvements, feature updates, and security enhancements to continue delivering value.
I'm a Senior Full Stack Software Engineer with over 10 years of professional software development experience, helping businesses maintain and enhance existing software rather than starting from scratch.
Whether your application is built with Flutter, Android, Laravel, WordPress, Angular, or another modern technology stack, I can help keep it stable, secure, and ready for future growth.
Services I offer
Bug fixing
Feature enhancements
Application maintenance
Performance optimization
UI improvements
Dependency updates
Library upgrades
API integration
API updates
Database optimization
Firebase integration
Code refactoring
Security improvements
Legacy code modernization
Build issue resolution
Crash investigation
Third-party SDK updates
Payment gateway improvements
Deployment
Documentation
Technologies
Flutter
Android (Kotlin & Java)
Laravel
ReactJS
Angular
Mon portfolio
FAQ
Can you work on an application developed by another programmer?
Yes. A large part of my work involves understanding existing codebases, diagnosing issues, and implementing improvements without requiring a complete rewrite.
What types of applications do you maintain?
I maintain mobile applications, web applications, admin dashboards, business systems, APIs, and custom software built with technologies such as Flutter, Android, Laravel, React, Angular, WordPress, and PHP.
Can you add new features?
Absolutely. In addition to maintenance, I can implement new functionality, improve workflows, and modernize existing systems.
Do you offer ongoing monthly maintenance?
Yes. If you require continuous support, updates, or feature development, I can provide long-term maintenance through custom offers.
Can you improve application performance?
Yes. I can identify bottlenecks, optimize database queries, reduce loading times, improve app responsiveness, and enhance overall performance.
Can you update old dependencies and libraries?
Yes. I can safely upgrade libraries and frameworks while addressing compatibility issues that may arise during the process.
Will you work with GitHub or GitLab?
Yes. I regularly collaborate using Git, GitHub, GitLab, and Bitbucket repositories.
Can you deploy updates?
Yes. I can assist with deployment to production environments, including mobile app stores, web servers, or cloud platforms, depending on your project.
Will you sign an NDA?
Yes. I'm happy to sign a Non-Disclosure Agreement before starting work if your project requires confidentiality.
How do I know which package I need?
Simply contact me before ordering. I'll review your project, estimate the scope of work, and recommend the package that best fits your requirements.
