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I am looking for an experienced developer to help maintain, troubleshoot, and improve an existing web application. The website is already built, live, and running. It was originally developed with Horizons, moved to GitHub, and is currently deployed on Hostinger. I need someone who can work with both the website and the Supabase backend. Requirements: • Strong Supabase experience (Database, Auth, RLS, Edge Functions) • Full-stack web development experience • GitHub and deployment experience • Ability to work within an existing codebase Tasks may include bug fixes, feature improvements, database work, API integrations, deployment support, and security reviews. This is ongoing hourly work. I am looking for a reliable developer, not a partner or co-founder. When applying, please include: • Relevant project examples • Your Supabase experience • Hourly rate • Availability Skills: Supabase, PostgreSQL, JavaScript, TypeScript, Full Stack Development, GitHub, API Integration, Web Development, Database Design, Website Maintenance.
Project ID: 40520347
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279 freelancers are bidding on average $12 USD/hour for this job

Working on an existing production application requires a different mindset than building a new one. The first step is understanding the current architecture, deployment workflow, and Supabase configuration before making changes that could impact users. Our team has experience maintaining and extending web applications built with JavaScript/TypeScript stacks backed by Supabase. We regularly work with: • Supabase Database and PostgreSQL optimization • Authentication and user management • Row Level Security (RLS) policies • Edge Functions and API integrations • GitHub version control and deployment workflows • Production bug fixing and performance improvements For ongoing support, I typically begin with a technical review of the application, database structure, authentication flow, deployment setup, and existing GitHub workflow. This helps identify quick wins, security concerns, and areas that may become bottlenecks later. Whether the work involves troubleshooting bugs, implementing new features, improving database performance, integrating third-party APIs, or reviewing security policies, I can work directly within the existing codebase and deployment process. Could you share which framework the frontend is currently using and whether there are any immediate issues that need attention? Regards, Rajesh Microlent Systems
$12 USD in 35 days
9.4
9.4

Hi there, We understand you're looking for an experienced full-stack developer to maintain, troubleshoot, and improve your existing web application, specifically working with Supabase and an existing codebase on GitHub deployed on Hostinger. With our strong background in full-stack development and experience with databases like MySQL and PostgreSQL, we're confident in our ability to handle tasks such as bug fixes, feature improvements, and API integrations. Our team has worked on similar projects, including a learning platform website for children using PHP, WordPress, and custom design, as well as e-commerce solutions with integrated payment systems. One question: can you provide more details about the current challenges or areas of improvement you've identified in the web application that you'd like us to focus on? Feel free to message us to discuss the details! — Webbook Studio
$8 USD in 40 days
9.2
9.2

With a strong background in full-stack web development and extensive experience with Supabase, PostgreSQL, and GitHub, I am well-equipped to maintain and improve your existing web application. I understand the importance of seamless backend integration and the need for comprehensive troubleshooting. Could you provide more details about the specific features that require immediate attention to ensure a smooth user experience? Regards, Yogesh Kumar
$12 USD in 38 days
8.5
8.5

Hi, I’m experienced with Supabase and can guide you through troubleshooting and enhancing your existing web application. With over 8+ years in full-stack development, I’ve successfully worked on similar projects involving Supabase (Database, Auth, Edge Functions) and GitHub deployment. I understand the importance of maintaining a live application and can efficiently navigate your existing codebase. I am available for ongoing work and can adjust my schedule as needed. My hourly rate is $15, and I can provide project examples upon request. Let me know if you’d like to discuss further! Best Regards, Priyanka
$15 USD in 40 days
8.4
8.4

Hi there, I can absolutely help you maintain and clean up your web app. I work with Supabase daily, so I’m already completely comfortable handling PostgreSQL databases, setting up secure RLS policies, and writing TypeScript Edge Functions. I have no problem jumping straight into an existing GitHub repo, and I know how to keep things organized so your live Hostinger deployment stays perfectly stable while we work. I’m looking for stable, hourly maintenance work just like this, not a partnership. My rate is $10 an hour, I have about 15 hours a week open right now, and I can start looking at your codebase as soon as today. What is the main bug or database issue that’s giving you the biggest headache right now? Let me know and we can get it sorted out. Thanks, Rahul A.
$10 USD in 40 days
8.7
8.7

I'm an experienced full-stack developer with strong Supabase expertise. I'll handle bug fixes, feature work, database changes, and deployment support reliably.
$8 USD in 40 days
8.2
8.2

Hi, I have over 5+ years of experience in both frontend and backend development. I will do the specified tasks. Key Areas of Expertise: a) Full-Stack Development: Proficient in both frontend and backend technologies Frontend: Next, Js, ReactJS, Bootstrap, JavaScript, jQuery Backend: Laravel, CodeIgniter, Node.js b) API Integration: Experienced in integrating and working with APIs to enhance application functionality. c) Microservices: Skilled in developing and integrating microservices for scalable and efficient solutions. d) Database Management: Competent in managing databases with Postgresql, MySQL, MongoDB, and Oracle. d) Server Handling: Adept at handling server environments such as AWS, Google Cloud, VPS, Apache, and Nginx. Let’s discuss how I can help achieve your project goals and add value. Lets connect in chat so that We discuss further. With Regards, Sai
$10 USD in 500 days
7.8
7.8

⭐⭐⭐⭐⭐ Improve and Maintain Your Web Application with Supabase Expertise ❇️ Hi My Friend, I hope you're doing well. I've gone through your project details and see you're looking for a developer to maintain and enhance your web application. You don't need to look any further; Zohaib is here to help you! My team has successfully handled over 50 similar projects. I will focus on troubleshooting issues, enhancing features, and ensuring the application runs smoothly using Supabase. ➡️ Why Me? I can easily manage your web application as I have 5 years of experience in full-stack development, specializing in Supabase, PostgreSQL, and JavaScript. My strong grip on GitHub and deployment processes ensures I can work effectively within your existing codebase. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to chatting with you! ➡️ Skills & Experience: ✅ Supabase ✅ PostgreSQL ✅ JavaScript ✅ TypeScript ✅ Full Stack Development ✅ GitHub ✅ API Integration ✅ Web Development ✅ Database Design ✅ Website Maintenance ✅ Troubleshooting ✅ Feature Improvement Waiting for your response! Best Regards, Zohaib
$9 USD in 40 days
7.9
7.9

Hello, I am an experienced full stack web developer with experience over 10 years can help you to maintain your website application, feature improvement and bugfiz. please kindly contact me for further discussion Thank you Yuda
$15 USD in 40 days
7.9
7.9

As a Senior Software Architect and Full-Stack Developer with solid experience, I am confident in my ability to fulfill all your project needs. My 15+ years in this industry have not only equipped me with strong Full Stack Development skills but also with the ability to quickly understand and work within an existing codebase, one of the crucial requirements you mentioned. Pitch: Going specifically into your project’s needs and requirements, my proficiency in Supabase is foundational and vast. Having built numerous web applications, I have plenty of relevant projects that showcase my understanding of Supabase’s Database, Auth, RLS, and Edge Functions capabilities. In addition to meeting your requirement for full-stack experience, I can bring my strong command over PostgreSQL, JavaScript, TypeScript, and API integration on board to provide a comprehensive development solution. My focus has always been on delivering high-quality products and ensuring their long-term maintainability. This resonates well with your need for not just simple bug fixes but also for feature improvements, database work, API integrations, deployment support, and security reviews. My hourly rate is competitive yet reflective of the value I bring. Rest assured you will find me trustworthy and reliable as we take your web application to the next level. Let’s discuss how our collaboration could be mutually beneficial for your project.
$12 USD in 40 days
7.8
7.8

Hello, Working in an existing codebase is often more challenging than building from scratch, especially when the application has already gone through platform migrations and production deployments. We've maintained and extended production systems involving authentication, dashboards, APIs, database management, and ongoing feature development. I'm comfortable working with Supabase (Auth, RLS, Edge Functions), GitHub workflows, deployments, troubleshooting, and incremental improvements without disrupting existing functionality. My first step would be understanding the current architecture, reviewing the Supabase setup, and identifying any stability, security, or performance concerns before implementing new features. Best, Raksha
$12 USD in 40 days
8.1
8.1

Hello, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, JavaScript, MySQL, Node.js, PostgreSQL, Web Development, Full Stack Development, Database Design, GitHub, API Integration Lets connect in chat so that We discuss further. Thank You
$12 USD in 40 days
7.2
7.2

Hello, I am a honest dedicated full time developer.I read your requirements carefully and understood very well about the project scope and start working accordingly in stages. I am having more then 11+ years of experienced in programming and i believe that i can start working step by step and achieve the project goal in short time frame. I am available on desk as per your convenient time zone and will work on your project until you satisfied with my work. Thanks Christina
$8 USD in 40 days
7.4
7.4

Hi, I’m a full-stack developer with strong experience in Supabase and maintaining live web applications. I’m comfortable working within existing codebases and handling ongoing improvements, bug fixes, and deployments. My expertise includes: • Supabase (PostgreSQL, Auth, RLS, Edge Functions) • JavaScript/TypeScript • GitHub and deployment workflows • API integrations and database optimization • Security reviews and website maintenance I’ve worked on production applications, fixing issues, adding features, optimizing databases, and ensuring stable deployments. I can quickly understand existing architectures and deliver reliable solutions without disrupting live systems. **Supabase Experience:** Database design, authentication, RLS policies, Edge Functions, storage, migrations, and backend integrations. **Hourly Rate:** $20/hr (flexible). **Availability:** Available to start immediately for ongoing hourly support. I’d be happy to discuss your project and help maintain and improve your application for the long term. Best regards, Aminesh
$12 USD in 40 days
7.6
7.6

Hello, Your requirement for a full-stack developer to maintain, troubleshoot, and improve an existing web application aligns perfectly with our expertise at Doomshell Software Pvt. Ltd. We specialize in full-stack development, backend solutions, and ongoing application support for production-ready systems. We can support you with: ✔ Full-stack application maintenance and feature improvements ✔ Supabase database management and PostgreSQL optimization ✔ Authentication, RLS policies, and Edge Functions setup ✔ JavaScript/TypeScript development and API integrations ✔ GitHub workflow management and deployment support ✔ Hostinger deployment troubleshooting ✔ Security reviews, performance optimization, and code improvements Our approach: ✔ Analyze the existing codebase and application architecture ✔ Fix issues and implement enhancements without disrupting existing functionality ✔ Maintain clean, scalable, and secure code ✔ Optimize database performance and application reliability ✔ Provide consistent hourly support for ongoing development needs Our team has experience managing modern web applications, cloud backends, databases, and integrations. We can help keep your application stable while continuously improving its features and performance. We look forward to supporting your project with reliable and professional development services. Regards,
$15 USD in 40 days
7.4
7.4

Hello, As an AI Developer with over a decade in software engineering, including extensive full-stack web and mobile development experience, I am uniquely positioned to meet the needs of your project. While my AI-focused work has shifted my professional trajectory recently, I have not lost touch with the skills that made me excel at system maintenance and improvements , a crucial criterion for your project. My experience setting up complete workflows and deploying end-to-end AI solutions gives me the kind of depth that can seriously elevate your existing application. In addition, I have relevant knowledge of platforms like Supabase, GitHub and Hostinger, and can seamlessly dive into your codebase to diagnose bugs, perform security reviews, implement new features, integrate APIs or just generally give the site an upgrade where needed. It's also worth noting that I have worked on projects ranging from business to education to ecommerce; this varied background has sharpened my problem-solving abilities and honed my collaborative skills, the very essence of your project parameters. As you know, the most appealing thing for me is the ongoing nature of this position. While I may not be available for immediate full-time employment within your company, I have built my career on long-term relationships with clients. With consistent communication channels open between us and considering my documented track record on delivering high-quality so Thanks!
$20 USD in 24 days
6.8
6.8

Hello, A Horizons-built app moved to GitHub and Hostinger often has hidden issues, especially in Supabase RLS rules. They may look correct but can still block valid users or expose data. I would first audit this before any feature work. I’m a full-stack developer with strong Supabase experience (database, RLS, auth, Edge Functions), and I’ve worked with existing codebases, so I always understand the system before changing anything. I’d start with a quick review of your repo and Supabase setup, share risks and fixes, then handle tasks step by step. I’m available for ongoing work, 40 hours per week (Monday to Friday, 10:00 AM to 7:30 PM IST). Hourly rate: $15. Looking forward to your reply! Best, Niral
$15 USD in 40 days
6.8
6.8

Hello! As per your project post, you are looking for an experienced full stack developer to maintain, troubleshoot, and enhance an existing web application that is already live and deployed. The goal is to ensure the platform remains stable, secure, and scalable while improving functionality, resolving issues efficiently, and supporting future development within the existing architecture. My focus will be on working directly within your current codebase, reviewing the application architecture, identifying technical debt, resolving bugs, optimizing performance, and enhancing both frontend and backend functionality. This includes Supabase database management, authentication flows, RLS policy reviews, Edge Functions, GitHub based development workflows, deployment management on Hostinger, and implementing new features while maintaining code quality and platform stability. I specialize in modern full stack development, Supabase, React based applications, API integrations, cloud deployments, and legacy codebase maintenance. My approach focuses on understanding the existing architecture first, documenting key workflows, improving reliability, and delivering clean, well tested updates that minimize disruption to production systems. Let’s connect to review the existing application, current challenges, and future roadmap so we can establish a reliable development process and continue improving the platform efficiently. Best regards, Nikita Gupta.
$10 USD in 40 days
6.8
6.8

Hello, We are a team of experienced full-stack developers specializing in Supabase, PostgreSQL, JavaScript/TypeScript, API integrations, GitHub workflows, and cloud deployments. We have extensive experience maintaining and improving existing web applications, including database optimization, authentication, RLS policies, Edge Functions, bug fixing, security reviews, and feature development. Our team is comfortable working within established codebases and providing reliable long-term support We would be happy to review your application and discuss how we can contribute to its ongoing success. Best regards, Zero IT Solution
$10 USD in 40 days
7.2
7.2

Hello there, I can definitely help you maintain, troubleshoot, and improve your existing web application. I have 15+ years of full-stack development experience and have worked extensively with Supabase (database, auth, RLS, edge functions), APIs, and live production systems. I’m comfortable jumping into existing codebases, fixing issues quickly, and improving performance and security. I also use AI in my workflow to speed up development while maintaining high quality, which helps deliver faster results with optimized cost. I’ve handled similar ongoing maintenance projects involving bug fixes, backend improvements, and deployment support using GitHub and hosting platforms like Hostinger. Availability: 30–40 hrs/week Hourly Rate: $12/hr I can share relevant work examples in chat. Let’s chat, Himanshu
$12 USD in 40 days
6.6
6.6

baitar Illit, Israel
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