Full-Stack Developer for React TypeScript Audit

@OutsourceMan

Dear Valuable Client, At CnEl India, we specialize in auditing, securing, and scaling production React + TypeScript applications backed by Supabase architectures. Technical & Execution Methodology Comprehensive Code & Architecture Audit: Evaluate existing TypeScript types, React component structures, state management overhead, and bundle sizes to optimize rendering performance and maintainability. Security & Supabase Hardening: Audit Supabase Row-Level Security (RLS) policies, API endpoints, authentication flows, and data access logic to fix security vulnerabilities and exposure risks. Performance & Query Optimization: Refactor slow Database/Edge Functions, optimize real-time subscriptions, implement memoization/lazy loading, and eliminate redundant API calls. Bug Fixing & Feature Development: Execute systematic bug resolution and complete pending mobility features using clean, well-documented, type-safe React/TypeScript code. QA & Handover (2 Weeks): Deliver an itemized audit report, refactored production-ready source code, updated Supabase migration scripts, and test coverage verification. Ready to start immediately! Best regards, CnEl India Team

@jayantkumar314

Hi, I can audit your existing React/TypeScript/Supabase platform and identify code-quality, security and performance issues. I’ll prioritize critical findings first, then handle bug fixes, refactoring and remaining feature development systematically. I’ll review frontend/backend flows, Supabase database/auth policies, API usage and performance bottlenecks while preserving existing functionality. I can start with a structured codebase audit and provide clear priorities before implementing the fixes.

@mninfotech2

Hi,I can help audit, stabilize, and complete your existing mobility platform built with React, TypeScript, and Supabase. Rather than rebuilding what already works, I’ll first understand the current architecture and identify the areas that need improvement. I have worked on similar full-stack applications involving existing codebases, API integrations, databases, authentication, bug fixing, performance optimization, and feature development. My approach would include: • Complete codebase and architecture audit • Security review covering authentication, authorization, API access, database policies and common vulnerabilities • React/TypeScript code quality and component review • Supabase database, RLS policies, queries and backend logic review • Performance profiling and optimization • Bug identification and fixes • Required feature development • Refactoring where it improves maintainability and scalability • Testing and regression checks • Git-based development with clean, documented commits I’ll provide a clear audit of the existing issues first, prioritize critical problems, and then work through fixes and pending features systematically. I have completed similar work on existing platforms and can share relevant portfolio/work links for review. I’m comfortable taking ownership of both frontend and backend improvements and can start with the audit immediately.

@santoshkumars17

With over 5 years of professional experience as a Full Stack Developer, I am confident in my ability to review, improve, and support your mobility platform. I have strong hands-on experience with React, TypeScript, Supabase, and Node.js—the key technologies relevant to your project. I have worked across complete development cycles, from initial architecture and development to code improvements, performance optimization, security reviews, and feature enhancements. I can perform a structured audit of your platform, identify technical issues, review code quality and performance, and provide clear recommendations for improvement. My backend experience with Node.js, API integrations, and database management will also help me review the complete system rather than focusing only on the frontend. I can identify bugs, improve existing functionality, optimize database queries and APIs, and ensure the code remains clean, scalable, and maintainable. I pay close attention to details and follow an organized development process. Communication is also important to me, so I provide clear updates and discuss findings before making major changes. My goal is not just to fix individual issues, but to help strengthen the overall foundation of your platform for long-term stability and growth. I am confident that my technical experience, problem-solving approach, and commitment to quality would make me a valuable addition to your project.

@Hrolgar

Mobility platform on Supabase, so the part everyone else will skim past is the RLS layer. It's easy to half-configure: a policy that looks clean in the dashboard but still lets an authenticated user pull rows outside their own tenant because the USING clause checks the wrong column, or an anon role that inherited SELECT from an older, broader policy nobody remembered to tighten. On a mobility app that usually means driver or rider records, trip history, payout data, crossing accounts quietly until someone goes looking for it. I'd start the audit at that boundary rather than the UI. Pull every table's RLS policies and cross them against the actual API calls hitting Supabase, check anon vs authenticated grants, and trace how JWT claims map into the policy conditions. Alongside that, a pass over the TypeScript layer for drift against the generated Supabase schema, N+1 patterns in the data fetching, and client-side logic that's duplicating something that should live in a policy or a Postgres function. The split below assumes one Supabase project and a single auth role hierarchy. If there's a service layer between the app and Supabase, or more than one environment to cover, the days and the number both move once I've seen the schema. M1: Security and RLS audit, policy review, auth boundary mapping, API cross-check, findings report. ₹12,375, 2 days. M2: Fixes on the audit findings plus a code quality pass, type safety, query performance, structural issues. ₹15,000, 2 days. M3: Feature work and refactoring off the combined findings. ₹10,125, 2 days.

@shayankhan333

Audits on Supabase projects usually surface the same pattern: RLS policies written permissively during development and never tightened before launch. I'll review the React/TS codebase for structure and performance, then run a focused Supabase security pass on RLS, service-role usage, and exposed keys, followed by the bug and refactor queue you prioritise. You can see my past work and reviews here: https://www.freelancer.com/u/shayankhan333 1) Is RLS currently enabled on every table, or only some? 2) Do you have a prioritised bug list, or should I propose one after the audit? Message me and we can lock the plan down. Shayan

@anjalihooda

Hi There !! I can audit the existing React, TypeScript and Supabase platform and then handle the required fixes and development work. I will first review the code structure, security, database rules, API usage and performance to identify the main issues before making changes. I am comfortable with frontend and backend work, bug fixing, refactoring and adding features without disturbing existing functionality. I can start with a proper audit and share the findings with priority levels before moving into the fixes. Could you share the current repository and Supabase setup details so I can review the existing architecture? Regards, Anjali

@TechizeBuilder

Dear Client, I read "Full-Stack Developer for React TypeScript Audit" carefully and understand you are looking for a full-stack developer who can handle both application development and AI integration. I have experience with JavaScript, Node.js, Full Stack Development, Backend Development, Frontend Development, API Development, Supabase and can work across the complete stack — frontend, backend, APIs, databases, authentication, third-party integrations and AI features. I can build scalable applications using modern technologies while keeping the codebase maintainable and production-ready. A few quick questions: Which AI models/APIs are you currently planning to use? Is there an existing application/codebase, or will the project be built from scratch? Thanks & Regards, Deepak

@technologiesit

With 8+ years of experience and a robust track record of successfully delivering 200+ projects, I am well-positioned to undertake the audit and completion of your existing React TypeScript mobility platform. As a seasoned Full Stack Developer, I possess the skills that your project demands - including API Development, Frontend Development, and proficient knowledge of JavaScript. One of my core strengths lies in enhancing platform security by identifying and resolving vulnerabilities. Moreover, I bring excellent problem-solving skills to the table and have a proven ability to mitigate bugs and enhance features – something absolutely crucial for your project. My portfolio proudly showcases this proficiency in empowering pre-existing platforms. Building upon my versatile skill set, I'm not just a competent developer but a long-term partner ready to provide post-delivery support as well. I believe in products that have an everlasting value and can help drive businesses forward – something we share from what I gather from your project description. So let's collaborate! Let's transform your React TypeScript mobility platform into a faultless and potent digital solution.

@agrasth

Dear Sir, I have extensive experience of more than 30 years in developing IT applications for varied verticals. I have good experience in Typescript, Angular, React, Node.JS, MySQL, MongoDB, etc. I also have extensive experience using .NET, .NET Core, SQL Server, PHP, Laravel, etc. Please send us more details about the project so that we can understand the complexity of the project. In case you need any clarifications, please feel free to contact us. Thanking you and best regards Sanjay Kaul

@rajeshrolen

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. Happy to share a quick plan if you're open to it. Regards, Rajesh

@rohank2502

Your mobility app is already built. I will find what is slow, unsafe, or unfinished, then close the gaps so you can use it with confidence. I can start right now. In 24 to 48 hours you get a live sample: a plain review of one real screen, plus one fix you can click through. Then I tidy the messy parts, lock down weak spots, speed up slow pages, squash bugs, and finish leftover features. I run nine live production systems with login and background jobs. I will prove it on your app, not with a sales story. Can you share the bug list and which area I should sample first?

@GobindSawarn

With over six years of experience, my expertise aligns perfectly with your project requirements. Having operated as a high-end professional in the development industry, I bring a precise and detail-oriented approach to my work. My comprehensive knowledge and extensive experience with React, TypeScript, and Supabase enable me to not only understand but improve your existing mobility platform at its core. In terms of tackling the auditing tasks of code structure and quality, security vulnerabilities, and performance issues, my proficiency in Node.js plays a pivotal role. An expert in identifying and resolving security vulnerabilities, I can guarantee you that your platform will be reinforced from any potential threat. Moreover, my knack for optimizing performance can greatly enhance user experience and expedite system response time. My

@geryybangsawan

Hello, I’m interested in auditing and completing your existing mobility platform. I have experience working with **React, TypeScript, Supabase, and full-stack applications**, particularly improving existing codebases rather than starting from scratch. My approach would begin with a structured audit covering code quality, architecture, security, database/API access, and performance. After identifying issues, I can prioritise bug fixes, refactoring, and feature development without disrupting existing functionality. I focus on maintainable code, secure Supabase configurations, efficient React rendering, and clear documentation. **Estimated timeline:** Initial audit within 2–3 days, followed by implementation based on findings. **Estimated budget:** ₹30,000–₹37,500 INR. Please contact me for further discussion, as I would need to review the current codebase and outstanding tasks before confirming the final scope and timeline. Best regards, Dandi

@ravindrababbar9

Hi, hope you’re doing well. I’m a senior full-stack developer with 10+ years of experience in React, TypeScript, Supabase, and production applications. I can audit your platform for security, performance, code quality, and architecture, then handle bug fixes, feature development, and refactoring. I’m comfortable working with existing codebases and can quickly identify issues and provide practical, scalable solutions.

@Abror86

Hi-Abror Here From Uzbekistan. "Stabilize And Improve Existing React Platform" - I can stabilize React TypeScript systems through Supabase auditing, refactoring, performance optimization, and bug fixes. I can audit the React TypeScript and Supabase architecture, identify security and performance issues, then fix bugs and refactor fragile code safely across existing modules. I will review database policies, APIs, authentication, frontend flows, performance bottlenecks, and existing patterns before implementing tested improvements without breaking current functionality or integrations safely. Can you share the repository and current Supabase structure so I can begin the audit? Looking forward to working with you.

@JureJovic

Here! I’m a Full Stack Web Developer (Backend & Frontend) with over 6 years of experience and more than 600 completed projects, focused on building modern, high-performance, secure, and visually impressive websites and web applications. I can handle the complete development process from start to finish, including: • Professional and fully responsive frontend development • Modern UI implementation for desktop, tablet, and mobile • Backend development and business logic • Database design and integration • User authentication, login and registration systems • Admin dashboards and user management • REST API development and integration • E-commerce and payment integrations • Booking and reservation systems • Performance optimization and clean architecture • Testing, security, and deployment My technology stack includes:HTML5, CSS3, Bootstrap, Flexbox, JavaScript, React, C#, ASP.NET Core, REST APIs and Microsoft SQL Server. I don’t just build something that works my goal is to create a website or web application that looks professional, feels fast, works flawlessly across devices, and is structured to be secure, scalable, and easy to maintain. Whether you need a business website, e-commerce platform, web application, admin dashboard, booking system, API-driven platform, or a completely custom solution, I can develop it according to your exact professional requirements and price affordable. I’m waiting for your answer Kind regards, Jure

@marcelof59

I can audit and improve your existing mobility platform across React, TypeScript, Supabase, security, and performance. I’ll start with a structured review of the codebase, architecture, database/RLS policies, APIs, and frontend patterns. I’ll identify security vulnerabilities, permission issues, inefficient queries, performance bottlenecks, and technical debt. After the audit, I’ll prioritize findings by severity and business impact rather than making unnecessary changes. I can then handle bug fixes, feature development, refactoring, and performance optimization as required. For Supabase, I’ll specifically review authentication, RLS, database policies, storage, Edge Functions, and exposed endpoints. I’ll improve React/TypeScript structure with maintainable components, proper state handling, and stronger type safety. I’ll provide clear documentation of the issues found, fixes implemented, and recommendations for future development. I have 9 years of full-stack experience with React, TypeScript, Supabase, Node.js, PostgreSQL, AWS, and security-focused development. I’m comfortable taking ownership of an existing codebase and bringing it to a more stable, secure state. I’m available to start immediately and can begin with the audit before moving into the implementation phase.

@Cruz1217

The current Supabase policy setup likely leaves the public API endpoint open to unauthorized reads. I'll start by mapping the data flow, tightening row-level security, and adding type guards in the TypeScript layer. From there I can refactor the React components to reduce unnecessary renders and improve load time. A common mistake I see is relying on client-side checks for auth, which lets a malicious user bypass UI controls. Fixing that and adding proper server-side checks will close the gap and keep the platform responsive under load. You’ll get a cleaner codebase that passes lint and type checks without warnings.