Full-Stack Developer (Next.js + Supabase) to Finalize Community School Multivendor Marketplace MVP

@rbtech1984

Hello There!!! ★★★★ ( Senior AI Engineer for Voice-Ordering System ) ★★★★ I understand you need a high-performance voice-ordering backend that handles Arabic-Hebrew code-switching with sub-second latency. The system must transcribe audio using Faster-Whisper, parse menu-specific commands via an LLM, and scale across multiple restaurants while being robust to kitchen noise. ⚜ GPU-accelerated STT engine using Faster-Whisper Large-v3-Turbo ⚜ Real-time audio streaming with WebSockets for <1s latency ⚜ Contextual accuracy with initial prompting for menu-specific terms ⚜ LLM integration (GPT-4o-mini or local Llama-3) to output structured JSON ⚜ Voice Activity Detection (Silero) to filter background noise ⚜ Multi-tenant scalable architecture via serverless or Dockerized GPUs ⚜ Detailed latency optimization and scalability report With 9+ years of AI and backend experience, I’ve built real-time multilingual audio systems and scalable voice apps. I can deliver a robust, low-latency solution tailored to your restaurant workflow. Excited to bring your voice-ordering system to life efficiently. Warm Regards, Farhin B.

@melikatfz

What radius-based querying method do you prefer for the PostGIS extension in Supabase, and do you already have a predefined list of school invitation codes? Many marketplaces struggle with data leakage where private community listings accidentally appear in public searches due to weak Row Level Security (RLS) policies. I will implement robust RLS logic and efficient spatial indexing to ensure your school-specific privacy remains intact while allowing seamless "nearby" discovery. Let’s discuss your project now!

@Ivanor1505

Hi, You are building a school first marketplace with controlled local discovery. I worked on community platforms where privacy and expansion had to coexist without conflict. The main pressure point here is Row Level Security when Nearby mode crosses school boundaries. Supabase RLS must stay strict by default but flexible under radius filtering. If policies and indexes are not designed together, you risk slow queries or unintended exposure. I structure schema and geolocation first, then layer conditional access cleanly. Radius filtering is often underestimated. A quick postcode solution seems easy but becomes costly to adjust later. Price here protects architecture stability, not features. My responsibility is to make this hybrid model predictable and safe from day one. If this fits your direction, we can align on next steps. Ivan

@rosscarter1011

Hi there, The primary technical hurdle in a hybrid school-based marketplace is ensuring that Row Level Security (RLS) handles the switch between school-private and radius-public listings without exposing sensitive user data or creating slow, unindexed geospatial queries. I will implement a robust PostGIS-powered Supabase schema that uses optimized spatial indexing to toggle between community-locked and radius-based discovery, ensuring a seamless experience for families while maintaining absolute data privacy. here are my questions: Would you prefer using a PostGIS radius-based query for precise discovery, or a simplified postcode-prefix matching system to keep the initial MVP database logic lightweight? For the school join process, do you have a specific validation logic for the school codes to prevent unauthorized access to private school-specific feeds? Let’s discuss your project now!

@sonika1419

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.

@vasyls8

Hi, hope all is good. I have read your project description carefully and I understand what you want. I am a skilled freelancer with 5+ years of experience in PHP, JavaScript, HTML, Web Development, API Development, AngularJS and I have completed similar projects. You can visit my profile to check my latest work and recent reviews. I would love to connect in chat to discuss details. Talk soon, Vasyl

@krisk63

Hi there, I’m Kristopher Kramer from McKinney, Texas. I’ve worked on similar projects before, and with over 15 years of experience as a senior full-stack and AI engineer, I have the expertise to deliver this properly. I’m available to start right away and would be happy to discuss the details whenever it’s convenient for you. I look forward to speaking with you. Best regards, Kristopher Kramer

@mugencodes

Hi, hope you are well. I understand your goals and will deliver clear work on time while keeping you updated. we have many years of development experience in Web Development, Full Stack Development, API Development and I have completed similar projects. Feel free to visit our website to check our team and portfolio. If this sounds good, have a meeting to discuss about your project in detail. Best regards, Jayabrata Bhaduri

@sumanj555

Hello, Greetings! I’m a senior full-stack developer with 6+ years of experience in building scalable mobile and web applications. I specialize in cross-platform and native mobile development using Flutter, React Native, Swift (iOS), and Kotlin/Java (Android), along with strong backend expertise in Node.js, Django, FastAPI, and Laravel, supported by modern cloud technologies. My team and I build end-to-end mobile solutions including custom dashboards, internal tools, automation systems, role-based platforms, secure APIs, real-time features, payment integrations, push notifications, and complete app store deployments. We focus on creating smooth user experiences, clean architecture, and reliable performance. We’ve worked on numerous mobile projects with different requirements and complexities, helping clients turn their ideas into well-designed, high-performing applications. Your project aligns well with our technical skills and development approach. I’d be happy to discuss your project scope, ideas, and goals, and suggest the best technical approach. Best regards, Suman Joshi

@danielv2801

Hi, I understand the core principle: default same-school isolation with optional radius-based nearby discovery, enforced securely at the database level. I will refine the Supabase schema (schools, users, listings, donations, geo fields) and implement strict RLS policies: default school-scoped queries, extended radius filtering when “Nearby” mode is activated. Location indexing (PostGIS or indexed lat/lng) will ensure efficient distance queries. Scope includes: school join via code, listing creation (sale/donation), radius/category/grade filters, donation request and school assignment flow, clean TypeScript structure, migrations, and stable Vercel deployment. I can deliver a secure, clean, production-ready MVP aligned with your acceptance criteria. Daniel

@dineshk743

Hello, I’m Dinesh Kumar With 14+ years of experience across multiple platforms, I’ve helped build numerous startups through dedication and hard work. I’m committed to delivering high quality work that ensures 100% client satisfaction. Your success is my priority, and I focus on building long term relationships based on trust and excellence. Expertise: Web & App Development – React.js, Node.js, JavaScript, PHP, MySQL, WordPress, Magento, CodeIgniter, Shopify, .NET, Flutter, FoxPro Strong knowledge of frameworks, software design, and development methodologies Proven ability to deliver custom, scalable, and reliable solutions for diverse industries I work with clients globally, providing end to end solutions that meet unique project needs while maintaining the highest quality standards.

@zamanbhatti275

I'm expert in nextjs and posgresql, I can build strong backend and integrate with your ui, I can give you free db design for your satisfication. Thanks

@bushrar60

As an experienced Full-Stack Developer with a comprehensive understanding of technologies and frameworks, I strongly believe I am the right person for this project. Having worked on various web development projects using key languages such as TypeScript, JavaScript, HTML as well as platforms like Vercel and Supabase, I have the necessary proficiency to bring your vision to life. My team and I will ensure your database structure is not just developed but carefully refined to facilitate your hybrid community-based marketplace model. We implement clean, efficient code throughout and can significantly increase database scalability through indexed location fields for efficient querying. Additionally, my extensive knowledge of C#, C++, Java and cloud platforms such as Azure presents further value for your project. It enables us to provide holistic end-to-end product development, effective software architecture design alongside seamless deployment stability on platforms like Vercel. With all these offered skills and capabilities, I am prepared to deliver a fully optimized multivendor marketplace that enhances localized school interaction while supporting nearby expansion for its users.

@arifmansuri68

You said: Uploaded image Content do but ka kya dalu yha pr ChatGPT said: Yahan aapko proposal content likhna hai jisse client ko lage ki aap best ho. Copy-paste ke liye ready professional text de raha hoon ? Proposal Content (paste this): Hello, I am an experienced WordPress & PHP developer with 5+ years of hands-on experience in building, customizing, and fixing WordPress websites. I have successfully delivered many projects including theme customization, plugin development, speed optimization, bug fixing, and responsive design. For your project, I will: ✅ Understand your exact requirements ✅ Deliver clean, secure, and optimized work ✅ Ensure mobile responsiveness ✅ Provide quick communication and support ✅ Deliver within the promised timeline My goal is to provide high-quality work and long-term support. I am confident I can complete your project efficiently and professionally. Let’s discuss your requirements in detail and get started. Best regards, Arif

@giancarld3l

“If you want this done properly, this is the proposal to read.” Understanding the need for a clean, user-friendly educational multivendor marketplace, integrating a private community with local discovery. I have worked on similar projects offsite and have experience of 5 years! The solution will streamline school-based exchanges, allowing users to explore nearby sellers effortlessly. By ensuring a seamless UI experience and robust backend functionalities, the platform will support both community-focused and expanded searches efficiently. I’d love to chat about your project. Worst case, you get free advice that can guide your project. Kind regards, Giancarlo

@nadiad382

Hi, I've built multiple one-page websites and landing pages designed to convert visitors into leads or bookings, not just look good. I reviewed your project and understand you need a clear, focused page that explains your offer and drives action. My approach is simple: define the page goal, structure the content to guide users, and build a fast mobile-first page optimized for performance and SEO. I avoid bloated designs and focus on clarity, speed, and results. I can start with a clear section layout highlighting your platform’s unique hybrid model — private school communities with optional local discovery — making your educational marketplace easy to understand and inviting user engagement. Happy to discuss your goals and timeline. Nadia

@INDECODevelove

Buenos días, soy Adrián. Somos una empresa de desarrollo de software de Castellón. Nos gustaría concretar más detalles acerca del proyecto. ¿Podríamos concertar una reunión y comentar con más detalle? Tenemos amplia experiencia demostrable en proyectos similares. Un saludo y gracias.