Maintain and improve your existing web or mobile application

Already have an app but struggling with bugs, outdated code, or a backlog of improvements? I'll take ownership of your existing project and keep it running smoothly, securely, and up to date — so you can focus on growing your business instead of firefighting technical issues.


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What I can help you with:
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• Bug fixing & troubleshooting (frontend, backend & database)
• Performance optimization & speed improvements
• UI/UX improvements & responsive fixes
• Adding new features to existing codebases
• Code refactoring & technical debt cleanup
• Security patches & dependency updates
• Third-party API & integration maintenance
• Database optimization & query tuning
• App Store & Google Play update submissions


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Stack:
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• Frontend: React.js, React Native, Next.js, NextAuth, Redux Toolkit, TailwindCSS
• Backend: PHP, Symfony, API Platform, REST API
• Mobile: React Native (iOS & Android), Expo
• Databases & ORM: MySQL, PostgreSQL, Doctrine, Prisma, Drizzle
• DevOps: Docker, VPS, Vercel, Netlify, CI/CD pipelines, Github Actions, EAS
• Caching: Redis, Memcached


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Why choose me for your project ?
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• Active listening — I take time to understand your real needs before jumping to solutions
• Proactive approach — I bring ideas and suggestions, not just execution
• Clear communication — No jargon, no surprises, full transparency at every step
• Fast availability — Quick to respond and consistently reachable throughout the project


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What you'll get:
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• Thorough code review & audit before any work begins
• Clear reporting of issues found & actions taken
• Fast turnaround on critical bugs & urgent fixes
• Regular updates so you're never left in the dark
• Clean, documented changes for full transparency
• Flexible engagement — one-off fixes or ongoing retaine
• No ego — I work respectfully with any existing codebase


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Pricing:
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• Hourly: 35$
• Daily: 280$
• Fixed price: to be fixed based on discussed project details.


=> Drop me a message — I'll get back to you as fast as possible.