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I need a thorough code review of my full-stack React application. The code has been generated with Lovable and Claude Code, and reviewed by Sonar. The review should focus on: - Code Efficiency: Optimize performance and reduce complexity. - Security Vulnerabilities: Identify and mitigate potential security risks. - Coding Standards: Ensure adherence to industry best practices and coding standards. Ideal Skills and Experience: - Proficiency in React and full-stack development - Strong background in code review and optimization - Expertise in security best practices for web applications - Familiarity with industry coding standards and best practices Please provide examples of similar work done and your approach to this project.
Project ID: 40366125
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162 freelancers are bidding on average £2,128 GBP for this job

I have good knowledge of React.js and able to do this review task very well and check the security too. My main motto is client satisfaction and make a long term relationship with you. Lets connect and discuss more on it. Thanks
£1,500 GBP in 10 days
8.7
8.7

⭐️⭐️⭐️⭐️⭐️ Full-Stack React Code Audit & Optimization ⭐️⭐️⭐️⭐️⭐️ I understand you need a deep, expert-level review of your AI-generated React full-stack code (Lovable + Claude Code), going beyond Sonar to improve performance, security, and maintainability. Key Features: • Performance optimization (render cycles, API efficiency, state management) • Security audit (auth flows, OWASP risks, input validation, API protection) • Code quality & standards (clean architecture, modularity, best practices) • AI-code refinement (remove redundancy, simplify logic, improve scalability) • Detailed report + prioritized fixes with refactored code snippets Let’s chat… Thanks
£1,900 GBP in 7 days
8.6
8.6

Hi, Before we begin, a few quick questions: 1. Is your setup a monorepo or separate frontend/backend? 2. Are there any known performance issues already? 3. What backend are you using? 4. Should we only review the code or also refactor and fix issues? We will perform a full codebase audit focusing on React performance, unnecessary re-renders, API efficiency, security vulnerabilities (auth, data exposure, endpoints), and overall architecture and coding standards. You’ll get a clear, structured report with actionable improvements, and I can also implement fixes if needed. Our team has strong expertise in React and full-stack development, with solid experience in code review, performance optimization, and improving code quality. We also follow best practices in web security and modern coding standards to ensure clean, secure, and scalable applications. Let’s schedule a quick call to discuss the requirements. Thanks, Zeeshan Whizpool
£2,250 GBP in 20 days
8.2
8.2

I understand you need proper review regarding your react application which bas been done using claude and loveable.I have used both tools and also have cleaned and optimised codes in recent times.
£3,000 GBP in 24 days
8.1
8.1

With over two decades of experience in web development and software engineering, we have acquired profound knowledge in all aspects of full-stack development, prominently including React.js proficiency. We specialize in creating clean, optimized code that strictly adheres to industry coding standards and practices, making us well-equipped to review your application. One of our strongest suits is the skill to rapidly identify performance issues and security vulnerabilities; we consider ourselves totally paranoid when it comes to ensuring that your application is airtight against potential threats. Our knowledge of web security best practices can prove invaluable in mitigating any such risks. In conclusion, not only do we bring strong skills in React.js and full-stack development to the table but also an intricate understanding of code review and optimization along with deep-seated knowledge of industry best practices. Investing more than just our time into your project, we believe genuine dedication and expertise pave way for exceptional results. We would be honored to provide a comprehensive assessment of your entire application code, highlighting areas for improvement and helping you achieve a top-tier system. Kind regards Anton Sales Department Tangram Canada Inc
£2,250 GBP in 7 days
8.2
8.2

With over a decade of experience in full-stack architecture and high-scale systems, I understand your need for a thorough code review of your full-stack React application. As someone who has successfully scaled applications to serve over 1 million users and has a background in high-security FinTech, I am well-equipped to optimize performance, reduce complexity, identify security vulnerabilities, and ensure adherence to coding standards for your project. One strategic insight I can offer is to implement a continuous integration and deployment pipeline to streamline the review process and maintain code quality consistently. In a similar project, I was able to significantly improve performance and security by implementing automated testing and code quality checks. I encourage you to reach out to discuss your project further and how I can support you in achieving your goals for the full-stack code review of your React application. Let's collaborate on a scalable and secure solution to elevate your application to the next level.
£2,400 GBP in 30 days
7.8
7.8

Having expertise in React, Node.js, and full-stack development, I am confident that I can thoroughly review your code, optimize its performance and reduce complexity. Thanks to prior experience with Lovable and Claude Code, and leveraging Sonar for code reviewing, I possess a keen eye when it comes to spotting potential security vulnerabilities and adhering to industry coding standards—crucial aspects that I'd prioritize in my review. As an added advantage, my familiarity with security best practices for web applications will be particularly beneficial for your project. Apart from identifying existing security risks, I am well-equipped to mitigate them effectively. I also bring extensive experience in enhancing code efficiency while maintaining compatibility with industry standards. By choosing me for this project, you wouldn't just get a freelancer who ticks off all the boxes of your desired skills and experiences; you would also enjoy a highly collaborative process where we can communicate directly, ensuring that you get a precise solution tailored to your needs. A personal touch coupled with guaranteed 3-Months-Free Support makes the choice even more compelling. Give your React application the comprehensive code review it deserves by inviting me onto your team.
£2,250 GBP in 35 days
8.0
8.0

Hi, This is Elias from Miami. I checked your project description and understand you need a deep review of your full-stack React app, with focus on performance, security, and overall code quality after generation through Lovable, Claude Code, and Sonar review. The goal is to turn AI-assisted code into something cleaner, safer, and easier to maintain in production. I’ve done similar reviews on React-based applications where the main work was identifying hidden inefficiencies, weak security patterns, and cleanup opportunities that automated tools only partially catch. My approach would be to review the frontend and backend flow together, audit hotspots for performance and complexity, inspect auth/data handling/security risks, and then deliver a structured report with prioritized fixes and clear code-level recommendations. I can also separate quick wins from deeper refactors so the upgrade path is practical. I have a few questions to get a better understanding: Q1 – What is the backend stack behind the React app (Node, Supabase, Firebase, Laravel, etc.)? Q2 – Do you want only a review report, or also annotated fixes / pull-request style implementation support? Q3 – Are there any known areas of concern already flagged by Sonar, such as auth, API security, or large component complexity? Looking forward to hearing from you.
£2,250 GBP in 7 days
7.7
7.7

⭐⭐⭐⭐⭐ Complete Code Review for Your Full-Stack React Application ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project details and see you're looking for a thorough code review of your full-stack React application. You don’t need to look any further; Zohaib is here to help you! My team has completed over 50 similar projects, focusing on code efficiency, security, and standards. I will analyze your code to optimize performance, identify vulnerabilities, and ensure it meets industry best practices. ➡️ Why Me? I can easily do your code review as I have 5 years of experience in React and full-stack development, with a strong background in code optimization, security analysis, and adherence to coding standards. I also have a solid grip on tools like Sonar, which will enhance the review process. ➡️ Let's have a quick chat to discuss your project in detail, and I can share samples of my previous work. Looking forward to connecting with you soon! ➡️ Skills & Experience: ✅ React Development ✅ Full-Stack Development ✅ Code Review ✅ Performance Optimization ✅ Security Assessment ✅ Industry Best Practices ✅ JavaScript Expertise ✅ HTML/CSS Proficiency ✅ Git Version Control ✅ Agile Methodologies ✅ Problem Solving ✅ Debugging Skills Waiting for your response! Best Regards, Zohaib
£1,800 GBP in 2 days
7.6
7.6

As a top 1% talent on Freelancer.com, I am confident in my ability to deliver a thorough and robust review of your full-stack React application that aligns with your project needs. With a strong background in full-stack development and extensive experience in code review and optimization, I will adeptly optimize your code for improved performance and efficiency. My wealth of expertise also extends to security best practices for web applications, ensuring that any potential vulnerabilities in your code are promptly identified and resolved. To further substantiate my capabilities, I would be delighted to share examples of similar work where my code reviews have drastically improved application performance. My ultimate goal is not just fulfilling the basic requirements but going the extra mile by focusing on detail-oriented enhancements that guarantee long-term success for your application. For a comprehensive and efficient code review service, look no further than hiring me, Faisal Manzoor Hussain.
£1,650 GBP in 3 days
7.5
7.5

Hello, I understand you need a deep review of your full-stack React app created with Lovable and Claude Code, focusing on performance, security, and coding standards. I will go through your entire codebase to find ways to make it faster and simpler. I will also hunt for security problems and suggest fixes to protect your app better. Lastly, I will make sure your code meets the best practices developers follow. I'll check the React front end and backend parts thoroughly, pointing out any issues with efficiency, possible risks, and coding style. This will improve your app’s quality and make it easier to keep it safe and maintain. I’ll share examples from past reviews where I found and fixed similar issues. What backend technologies are you using alongside React in your app? Do you have specific security standards or compliance requirements to follow? Are there particular areas or modules where you suspect performance issues? Would you like recommendations on ongoing automated code quality tools? Is the current testing setup covering both frontend and backend? What are the main goals you want to achieve with this code review process? Thanks,
£3,000 GBP in 17 days
6.9
6.9

This looks like a great fit, I will deliver a structured code review of your full-stack React application — covering performance optimization, security hardening, and code quality — with a prioritized report of findings and actionable fixes for each issue. Since the codebase was generated by Lovable and Claude Code, I will pay close attention to patterns AI tools commonly introduce — redundant re-renders from poorly memoized components, overly abstracted utility layers that add complexity without value, and insecure defaults like exposed API keys or missing input sanitization. Sonar catches surface-level lint issues well, but it often misses architectural concerns like prop drilling chains, unprotected API routes, or missing rate limiting. Ready to start whenever you are. Kamran
£2,635 GBP in 30 days
7.2
7.2

Hi, I’ve reviewed and optimized full-stack React applications generated with AI tools, focusing on performance, security, and maintainability. I typically audit component structure, state management, API calls, and bundle size for efficiency; check auth flows, input validation, and dependencies for vulnerabilities; and align code with clean architecture and industry standards. I also provide actionable fixes not just feedback. I’ll deliver a clear report with prioritized issues, code improvements, and refactoring suggestions. Happy to share similar audits and start with a quick initial scan of your repo. Thanks.
£2,250 GBP in 7 days
7.4
7.4

Having efficiently worked in full-stack development and web security for over a decade, I am well positioned to conduct a comprehensive code review of your React application. My extensive knowledge of React, JavaScript, Node.js and web security is not only substantial but tried and tested. I've completed projects similar to yours for numerous satisfied clients, thereby establishing myself as capable of identifying vulnerabilities while enforcing coding best practices in adhering to industry standards. My key success here resides in my ability to provide quality insights for optimized performance and improved code efficiency. I'll eliminate complexities by streamlining your application's structure without affecting its functionality. Additionally, given that the project utilizes Lovable and Claude Code platforms, it's worth highlighting my proficiency in working with various technologies as demonstrated in my track record through the years. I believe a good review expands beyond explaining what's wrong; thus, as such I will also offer clear explanations on steps needed to ensure they are implemented correctly. When you hire me for this project not only are you entrusting your work with an experienced freelancer , you're choosing someone who genuinely cares about creating effective software that empowers businesses like yours to function more intelligently and efficiently.
£1,500 GBP in 18 days
6.8
6.8

Being a seasoned Full-Stack Web Developer for 9+ years, I have successfully delivered digital products with utmost agility and comprehensive technical proficiency precisely in line with your project requirements. Code efficiency, security protocols, and industry coding standards are essential aspects that my team and I understand deeply and meticulously address in our development process. This includes the code generated with Lovable and Claude Code that requires expert review attuned to performance optimization. We have an exceptional track record of 170+ successful projects across diverse domains confirming our capacity to adapt our skills across them. With my strong background in code review, optimization, and software development, I assure you a meticulous examination of your full-stack React application through a fine-tooth comb to identify any potential vulnerabilities for corrective measures. Additionally, I am well-versed in adhering to industry coding standards and best practices ensuring that your app is built up to par with the latest trends and goes through strict vulnerability testing.
£2,250 GBP in 7 days
6.7
6.7

Hey i am a senior developer with good experience in working at big tech companies at scale. I do code reviews daily and cover everything from coding standards to maintainability. I think i will be a good fit for this project. Lets chat further
£1,500 GBP in 7 days
6.3
6.3

I'm Iosif Peterfi, 15+ years of engineering leadership, and I bring calm, results-focused rigor to complex code reviews. This is my speciality: turning a thorough code review into practical, business-focused improvements that boost security, efficiency, and maintainability across full-stack platforms. You're seeking a thorough code review of a full-stack React application, with emphasis on code efficiency, security vulnerabilities, and coding standards, delivered with actionable findings and a practical remediation plan. I will deliver a risk-weighted findings report, a prioritized remediation backlog, security hardening guidance, performance improvement recommendations, and a coding-standards checklist. You'll receive an executive summary for leadership, a detailed findings document for the team, and a concrete roadmap with measurable business outcomes and reduced risk. The work focuses on lowering time to market, boosting reliability, and minimizing security exposure, while avoiding disruption to ongoing work. Last quarter I helped a financial services client review a large React app, uncovering critical performance bottlenecks and several security gaps, delivering a plan that cut initial load times and reduced risk. The client adopted the recommendations and saw smoother releases and fewer production incidents. 2-3 business days. Let's chat - I can walk you through my approach in 15 minutes.
£2,100 GBP in 3 days
6.4
6.4

Hey there, regarding your full-stack React application, one key aspect often overlooked is the efficient handling of asynchronous operations which can dramatically impact performance. I ensure the identification and resolution of these potential bottlenecks, delivering a more responsive application. Previously, I enhanced a client's React app by reducing load times by 40% through strategic optimization. I include 30 days of post-deployment bug-fixing to give you peace of mind. What's the current method you're using to handle authentication in your app? Let's discuss how I can help further.
£1,750 GBP in 12 days
5.4
5.4

Hi, I have strong experience in React.js, Node.js, JavaScript, full-stack development, web security, and code auditing for production web applications, including reviewing AI-generated codebases and tightening them for performance, maintainability, and safer deployment. For this project, I would review the React frontend and backend flow together to catch inefficient patterns, security gaps, and code-quality issues early, then turn that into clear fixes for performance, safer data handling, cleaner architecture, and standards-aligned code your team can keep building on confidently. I’ve done similar work on full-stack apps where the main focus was cleaning up generated or fast-moving code, reducing unnecessary complexity, improving API and state management, and flagging issues around auth, validation, secrets, and unsafe client-server interactions before release. You can expect clear communication, fast turnaround, and a high-quality result that fits seamlessly into your existing workflow. Best regards, Juan
£1,500 GBP in 3 days
5.6
5.6

Hi there, I will perform a focused, production-grade full-stack code review of your React app (generated with Lovable/Claude Code and reviewed by Sonar). My senior DevOps + full-stack background ensures I spot runtime inefficiencies, security gaps, and standards issues that automated scanners miss. - Deliverable: Line-level audit report (React components, backend endpoints, DB access) with prioritized fixes and code examples. - Deliverable: Performance profiling notes (bundle analysis, unnecessary renders, memoization, Compose/port-binding issues) and concrete optimizations. - Deliverable: Security findings (XSS, CSRF, auth logic, dependency risks) with remediation steps and tests. - Quality control: Staged validation plan, rollback/patch guidance, Sonar re-check and unit/integration test suggestions. Skills: ✅ React ✅ JavaScript ✅ Code review & CI workflow (Sonar, unit tests) ✅ Deployment & hosting (Node/Nginx, cloud/VPS) ✅ Web security (XSS, CSRF, dependency hardening) Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately , Can you share a link to the repo or representative branches and indicate which environments (dev/staging/prod) you want focused testing against? Thanks,
£1,500 GBP in 5 days
5.2
5.2

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