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$
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I will fix bugs and refactor your react and javascript code
Alexandra C.
5.0
5.0
About this gig
This gig is dedicated to resolving complex logic issues and executing deep structural refactoring for React and JavaScript applications. I go beyond basic patching to permanently eliminate technical debt and optimize your app's performance.
What to expect from this service:
- AI Codebase Refactoring: For AI-generated apps that have become an unscalable, buggy mess, I rebuild AI-hallucinated code into a clean and easy-to-read codebase.
- Targeted Logic Resolution: Fixing broken states, UI rendering bugs, and API integration failures.
- Legacy Modernization: Upgrading outdated JS or messy React components into clean, modular architecture.
- Performance Optimization: Slashing load times by removing dead code and restructuring data flow.
- Verified Quality: Every deployment is rigorously tested on real desktop and iOS environments to ensure absolute stability.
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PLEASE NOTE: Every codebase is unique. Please contact me before placing an order to discuss your project's complexity and establish an exact timeline.
No betting/adult projects.
Get to know Alexandra C.
Alexandra C.
Senior Frontend Developer: 5 Years Experience
- FromRomania
- Member sinceMar 2020
- Avg. response time1 hour
- Last delivery2 months
Languages
English, Romanian
Hi, I'm Alexandra 👋, a Senior Frontend Engineer with 5+ years of B2B experience. I rescue messy apps and write highly optimized code. My biggest win: refactoring 14,000 lines of JavaScript into just 1,200.
Premium Services:
• Deep Refactoring (Legacy to Modern JS)
• Complex Debugging & Logic Resolution
• New Feature Integration for Existing Apps
• UI Engineering (Figma to Code)
• Dynamic PDF & Interactive Charts
Tech: React, TypeScript, JavaScript, jQuery, Tailwind, Bootstrap, SASS, HTML/CSS, Git.
I never outsource. No betting/adult. Message me today!
My Portfolio
FAQ
What type of issues do you resolve?
I fix complex logic, refactor React/JS components, and optimize performance. I resolve root causes.
Do you specialize in modern frontend frameworks?
Yes. I specialize in React.js, modern JS (ES6+), Tailwind, and Bootstrap. I also refactor legacy jQuery apps.
How do you test your refactored code?
I rigorously test all codebase changes across modern browsers (Chrome, Safari, Edge) on Mac/Windows, plus real iOS devices for mobile responsiveness.
Can you handle large-scale code refactoring?
Yes! Message me for a custom quote on massive codebases.
How do you safely access my codebase?
For security, I work via Git (GitHub/GitLab) or a ZIP file. I test strictly in local environments, never on your live server, ensuring zero risk.
What do you need from me to get started?
I need a description of the issue (current vs. expected), a live/staging URL, and source code access (GitHub/GitLab/ZIP) to securely debug locally.
Reviews
3 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
I 
iustin_rosioara
Repeat Client
United States
I needed a solution to create 'with a single click' a PDF file containing both text and automatically generated financial charts based on a combination of HTML and JavaScript. Excellent delivery, on time, great communication along the way and very well documented. Highly recommend!
$200-$400
Price
13 days
Duration
Helpful?I iustin_rosioara
Repeat Client
United States
My second project with Alexandra. Prompt delivery, great understanding of the requirements and top coding expertise. Thank you!
$50-$100
Price
3 days
Duration
Helpful?I iustin_rosioara
Repeat Client
United States
Was great working with Alexandra. Needed help to rewrite / optimize a code for charts generation in Javascript. Not a simple project, still good final result and great communication along the way. Will surely come back with additional projects.
$50-$100
Price
9 days
Duration
Helpful?
Reviews
3 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
I iustin_rosioara
Repeat Client
United States
I needed a solution to create 'with a single click' a PDF file containing both text and automatically generated financial charts based on a combination of HTML and JavaScript. Excellent delivery, on time, great communication along the way and very well documented. Highly recommend!
$200-$400
Price
13 days
Duration
Helpful?I iustin_rosioara
Repeat Client
United States
My second project with Alexandra. Prompt delivery, great understanding of the requirements and top coding expertise. Thank you!
$50-$100
Price
3 days
Duration
Helpful?I iustin_rosioara
Repeat Client
United States
Was great working with Alexandra. Needed help to rewrite / optimize a code for charts generation in Javascript. Not a simple project, still good final result and great communication along the way. Will surely come back with additional projects.
$50-$100
Price
9 days
Duration
Helpful?
