Full-stack Engineer (Supabase & Stripe) - Web App Audit & Stabilization

@AwaisChaudhry

Hi there, I’m confident I can jump into your Lovable + Supabase + Stripe setup, audit what’s breaking, and stabilize the app without a full rebuild. I’ve shipped full-stack work with Supabase auth, RLS, edge functions, and Stripe subscriptions, and I know how messy auth/user state and webhook flows can become when systems don’t agree on the truth. I’ll start with a fast audit of auth state, RLS rules, and the database state; fix idempotent Stripe webhooks and checkout flows; align frontend state with backend data; and verify entitlement logic for paid users across new vs returning users and post-checkout redirects. My plan emphasizes clear root-cause analysis, minimal-risk fixes, and a repeatable testing workflow to prevent regressions. I’ll deliver a clean, stable state with a concise runbook and a one-week follow-up window for any edge cases. I can start immediately and target a first stable baseline in 3-5 days, followed by a 1-week refinement phase. What are the top three production pain points you’ve observed since the last release that we should prioritize in this stabilization sprint? Best regards,

@MashoodurRehman1

I am a full-stack engineer experienced in auditing and stabilizing consumer web apps. My proficiency spans Supabase for database management, user authentication, and RLS, complemented by hands-on experience with Stripe for subscription management and payment processing. I have previously navigated the intricacies of integrating these technologies effectively in various product environments, ensuring seamless end-to-end functionality. My background includes auditing complex applications and resolving state and integration issues swiftly. I've effectively utilized modern technologies to clean up frontend and backend inconsistencies and verify logic coherence across user flows, including authentication and entitlement. My expertise in debugging existing, sometimes convoluted setups aligns perfectly with the audit and stabilization tasks your project demands, ensuring a robust and reliable app. I am keen to learn more about your specific challenges and discuss how my skills can drive your product to greater stability and performance. Could you share more about the current state of your app? Looking forward to collaborating.

@divumanocha

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Divya

@rohan3188

Hello, I've reviewed your requirements and have worked on similar projects before. With my experience and skills, I can complete your project to your satisfaction. Please contact me via chat to discuss the details. Thank you.

@kamran2012

Hey there, I've reviewed your project requirements and you need a full-stack engineer to audit, clean up, and stabilize your consumer web app - fixing Supabase auth, Stripe subscription logic, state mismatches, and entitlement issues. Hands-on debugging, not building from scratch. I've been working with Supabase and Stripe for about 7 years now. Here's what I'd do: Audit and fix Supabase auth and user state issues. Ensure Stripe subscription and webhook logic is correct and idempotent. Clean up frontend and backend state mismatches. Verify content unlock and entitlement logic works for paid users. Fix behavior for new users, returning users, post-checkout redirects, and subscription edge cases. I'm genuinely full-stack - comfortable with both frontend React-style state logic and backend Supabase edge functions, PostgreSQL, RLS. I've shipped Stripe subscription products before and debugged messy Supabase-to-Stripe flows. Systems thinking mindset - I understand source of truth and where state should live. Comfortable jumping into someone else's setup, finding what's broken, and explaining why clearly. Timeline: About 2-3 weeks for complete audit, fixes, and stabilization. Tech I know well: Supabase (Auth, PostgreSQL, RLS, Edge Functions), Stripe (Checkout, subscriptions, webhooks), React-based frontends, no-code/low-code platforms. I've fixed similar broken Stripe-to-backend flows and consumer subscription products before. Talk soon, Kamran.

@tangramua

Dear ,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in JavaScript, Debugging, PostgreSQL, Stripe, Web Development, Full Stack Development, Backend Development, Frontend Development, API Integration, Web Application and other technologies relevant to your project.   Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews.   Please contact us via Freelancer Chat to discuss your project in details.    Best regards, Sales department Tangram Canada Inc.     

@elishadiah326

Hi, Thank you for posting this good task! From what I understand, you have a consumer web app built with a Lovable frontend, Supabase, and Stripe that’s already live but suffering from state, auth, and subscription inconsistencies. You’re not looking to rebuild anything - you need someone to audit the existing setup, identify what’s broken, and stabilize the system so user state, entitlements, and billing all behave correctly across real-world edge cases. As a skilled fulll stack developer, I have a deep understanding and experience shipping and fixing production apps using Supabase (Auth, Postgres, RLS, Edge Functions) and Stripe subscriptions and webhooks. I’ve worked extensively with idempotent webhook design, source-of-truth modeling for user state, and debugging mismatches between frontend assumptions and backend reality - especially in subscription-based consumer products. I’m also comfortable jumping into low-code / no-code environments and working around their constraints instead of fighting them. A few quick questions to clarify scope and risks: 1. Are Stripe webhooks currently handled via Supabase Edge Functions, or elsewhere? 2. Are there known edge cases that consistently break today, or is behavior just inconsistent overall? Happy to walk through the current setup with you and outline a concrete stabilization plan. Looking forward to discussing next steps. Best regards, Diah

@Herculesz

Hi I specialize in full-stack debugging with Supabase, Stripe, and modern frontend state management, and I can help stabilize your app by identifying the exact sources of state and integration failures. I understand the common technical issues in Supabase auth, RLS policies, and user-session drift that often cause inconsistent behavior across frontend and backend. I’ll audit your Stripe subscription flows, ensuring webhook logic is fully idempotent and that entitlement updates reflect a single source of truth. I’m comfortable navigating low-code environments like Lovable and resolving mismatches created by mixed custom logic and platform constraints. I can also fix entitlement and content-unlock logic so paid users always receive the correct access, even in edge-case scenarios. My approach focuses on clarity—pinpointing what’s broken, why it broke, and stabilizing the system for long-term reliability. I’m confident I can jump into the existing codebase and clean it up without disrupting the current product direction. Thanks, Hercules

@sagarwal3005

As a seasoned full-stack engineer with extensive experience in web development, Node.js, React, PHP, Excel automation, and accounting software, I am confident in my ability to audit, clean up, and stabilize your consumer web app. With a proven track record in Supabase and Stripe integration, I am well-equipped to handle the challenges of debugging and resolving real state and integration issues efficiently. I am committed to ensuring that your app functions flawlessly for both new and returning users, with a keen focus on subscription and entitlement logic. Trust me to deliver exceptional results for your project.

@Julian29

As a full-stack developer with 13 years of experience in IT and 2 years of prior work, I have both the depth and breadth of knowledge that your project requires. My ability to navigate complex codebases coupled with my proficiency in modern tech like Supabase, Stripe, and React-style state logic makes me an ideal candidate to audit, clean up, and stabilize your consumer web app. The specific skills you're seeking are where I excel. I have a genuine full-stack expertise that encompasses Supabase (auth, database, RLS, edge functions) as well as experience shipping subscription products with Stripe. In the ever-evolving field of tech, system glitches can be fairly common and disorienting. However, my source of truth mindset and comfort level with debugging someone else's messy setup enables me to quickly identify issues and provide effective solutions. Equally important is communicating clearly about what's broken and why - an art I've mastered over the years. This means you can expect detailed explanations of the identified problems and my approach to resolve them. I'm also experienced in handling large-scale projects which demonstrates my ability to think systematically while maintaining strict timeliness. Choose me for your project, and I assure you a high-quality outcome delivered on schedule. Let's make your web app more stable together!

@corpmember29

HELLO, I have carefully reviewed your requirements and fully understand the scope of auditing, cleaning, and stabilizing your consumer web app built with Lovable, Supabase, and Stripe. I have 10+ years of experience in full-stack development, including Supabase auth, PostgreSQL, edge functions, Stripe subscriptions/webhooks, and frontend state management. I can quickly identify and fix auth and state mismatches, entitlement logic issues, subscription edge cases, and post-checkout flows, ensuring your app works reliably for new and returning users. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. My approach is structured, transparent, and focused on delivering a stable, maintainable system that aligns with your product goals. I eagerly await your positive response. Thanks

@SBITServices

Hi Invatu Technologies FZLLC, I am a seasoned full-stack engineer with extensive experience in Supabase and Stripe. I specialize in auditing, cleaning up, and stabilizing consumer web apps. I can quickly dive into existing codebases, fix real state and integration issues, and ensure smooth functionality for users. Let's discuss this project further. Regards, Sai Bhaskar

@arbu1499

Hi! I’m a full-stack engineer with solid hands-on experience in Supabase (auth, RLS, edge functions) and Stripe subscription/webhook integrations. I specialize in diving into existing codebases to audit, debug, and stabilize complex flows, including user state, subscription entitlements, and edge cases like post-checkout redirects. I’ll quickly identify root causes of frontend/backend state mismatches and ensure your consumer app behaves smoothly for all users. Clear communication and actionable explanations come standard. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T

@webperfection123

Hi, I can help identify and resolve issues with Supabase authentication and Stripe subscriptions quickly. With over 8+ years of full-stack experience, including extensive work with Supabase and Stripe, I’m skilled in auditing and stabilizing existing applications. My approach focuses on ensuring correct user state and seamless integration across different components. I can tackle the complexities of content unlock and entitlement logic for paid users and streamline your frontend and backend sync. Let’s connect over Zoom to discuss your project in detail. Best Regards, Priyanka

@inertiasoftltd

The invaluable combination of my 8 years of web development expertise and your project's requirements make us the perfect match. My full-stack ability coupled with real-life Supabase experience allows me to quickly understand existing codebases and debug them thoroughly, streamlining your app's performance. I bring a source-of-truth mindset that focuses on cleaning up system messes, ensuring better stability for the future. Having previously shipped Stripe subscription products, I understand the nuances involved in making sure webhook logic is correct and idempotent. My proficiency in React-style state logic combined with Stripe helps me in verifying content unlock and entitlement logic, tailoring it to your specific paid-users' needs. Moreover, I have consistently prioritized meeting deadlines without compromising on the quality of my deliverables, which I guarantee will be the case for our collaboration. Given your preference for Lovable (no-code/low-code web app) that falls comfortably within my skillset and my eagerness to create 'digital masterpieces', would enhance your app’s performance. Couldn’t find someone as passionate as I am about creating online experiences to solve problems like yours. Shall we get started?

@Techislandsllc

I have extensive experience with Supabase and Stripe that makes me a perfect fit for your project. I have worked on similar projects before, organizing messy codebases and ensuring smooth user experiences with subscription products. Due to this, I'm adept at debugging existing setups and identifying the root causes of issues. My full-stack capabilities and proficiency in Supabase (Auth, PostgreSQL, Edge Functions) and my ability to ship solutions using Stripe subscriptions give me an edge. I embrace a "source of truth" mindset, making sure database and user states align across the front-end and back-end. In addition, I am comfortable working with Lovable (no-code/low-code) platforms like the one you used for your frontend. On top of fixing any immediate issues you may have, I also prioritize building scalable, future-proof systems. A thorough audit will not only solve existing problems but will also identify areas where improvements can be made to avoid future hiccups. So, if you are looking for a Full-Stack Engineer who brings long-term value to the table in addition to immediate results - let's discuss how we can stabilize your web app together!

@kareemmaize

Hi — thanks for sharing the details. This looks like a stabilization and cleanup effort rather than a greenfield build, which usually means the real work is understanding where state and ownership have drifted over time. The core issue here is aligning three systems that all influence user experience: the Lovable frontend, Supabase as the backend, and Stripe as an event-driven billing system. If any one of these becomes an implicit source of truth, inconsistencies around access, subscriptions, and entitlements tend to appear. My approach would start with a structured audit to map how auth, subscription state, and entitlements currently flow through the system, and where those flows break down for real users. From there, I would focus on correcting Stripe webhook handling, tightening backend state logic, and ensuring frontend behavior reflects backend reality across new users, returning users, and post-checkout scenarios. The emphasis throughout is on correctness, predictability, and maintainability rather than quick patches. Once the audit is complete and the true scope is visible, I can confirm a final timeline and budget based on verified findings rather than assumptions.

@inventivedesigne

I’m a product-minded full stack engineer with hands on experience stabilizing consumer apps using Supabase and Stripe. I’ve audited and fixed auth/state issues, RLS problems, and broken entitlement logic, and I’ve shipped Stripe subscription systems with correct, idempotent webhook handling. I’m comfortable jumping into messy setups, identifying the real source of truth, and cleaning up frontend/backend mismatches across new users, returning users, and edge cases. I’ll clearly explain what’s broken, why it’s happening, and lock the system into a stable, predictable state.

@sabaehsan

Greetings, It looks like you're in need of a full-stack engineer to help stabilize and clean up your web app that uses Supabase and Stripe. I can dive into your existing codebase, focusing on debugging the authentication and user state with Supabase, ensuring that your Stripe subscription and webhook logic function smoothly, and addressing any frontend and backend state mismatches. With my experience in both Supabase and Stripe, I can effectively diagnose what's broken and provide clear explanations for each issue. I've worked on similar projects where I’ve had to ensure seamless user experiences for both new and returning users, especially in subscription scenarios. My approach combines technical skills with a systems thinking mindset, ensuring everything aligns correctly. Best regards, Saba Ehsan