
Avoin
Julkaistu
•
Päättyy 12 tunnin päästä
Maksettu toimituksen yhteydessä
I am looking for an experienced full stack developer to migrate an existing Base44 application to a fully self hosted infrastructure using Supabase as the backend. The objective is to remove the live production site from Base44 entirely, while still continuing to use Base44 as a development environment. I want the ability to build and update the app inside Base44, then when ready, lift and shift the updated version to my own hosting environment without being locked into Base44’s backend or infrastructure. This is a structured migration, not a rebuild. --- **Current Setup** * Application built in Base44 * Uses Base44 entities and SDK * Uses Base44 integrations: * InvokeLLM for generating blog content and Welsh translations from RSS feeds * SendEmail for contact forms and admin notifications * Likely UploadFile for blog cover images and product images --- **Target Architecture** * Supabase for: * PostgreSQL database * Authentication * Storage for file uploads * Row Level Security * Custom SDK that mimics Base44’s API so existing code works unchanged * Hosting on my own infrastructure, likely Cloudflare Pages, Vercel or Docker based hosting * External integrations replacing Base44 services: * OpenAI or equivalent for LLM * Resend, SendGrid or similar for email * Supabase Storage for file uploads --- **Key Requirement – Development Model** This is critical. I would like: * The live production site to be fully independent from Base44 * No runtime dependency on Base44 once deployed * All data stored in Supabase, not Base44 However, I still want to: * Keep the app inside Base44 for development * Make updates inside Base44 * When ready, export or lift and shift the updated version to my own hosting * Deploy the new version to my Supabase backed environment In short, Base44 becomes a development environment only, not the production backend. The solution must support this workflow cleanly and repeatedly. --- **Scope of Work** 1. Audit existing Base44 app structure and entities 2. Design and implement Supabase schema matching existing entities 3. Configure Row Level Security correctly 4. Migrate existing data from Base44 to Supabase 5. Implement replacements for: * InvokeLLM * SendEmail * UploadFile 6. Ensure existing functions such as: * generateBlogFromRss * sendContactEmail * notifyContactSubmission * notifyProductEnquiry work without code rewrites where possible 7. Set up deployment pipeline for self hosted production 8. Document the lift and shift process for future updates --- **Deliverables** * Fully working production site hosted independently from Base44 * Supabase project configured securely * All integrations working * Clear documentation on: * How to export new versions from Base44 * How to deploy them to the self hosted environment * How to manage environment variables and secrets * Confirmation that Base44 is no longer required for production runtime --- **Ideal Candidate** * Strong experience with Supabase and PostgreSQL * Experience replacing SaaS backends with self hosted infrastructure * Experience with OpenAI or similar LLM integrations * Experience with transactional email services * Comfortable designing secure architectures with RLS * Able to think through long term maintainability, not just one off migration --- **Please Include in Your Proposal** * Similar migration projects you have completed * Your proposed architecture * Estimated timeline * Fixed price or structured cost estimate * Any risks you foresee with this development model --- This is a serious migration project, not a quick patch. I am looking for someone who understands long term architecture and vendor independence. If you understand both Base44 style low code platforms and proper backend architecture, I would like to hear from you.
Projektin tunnus (ID): 40268797
81 ehdotukset
Avoinna tarjouksille
Etäprojekti
Aktiivinen 20 tuntia sitten
Aseta budjettisi ja aikataulu
Saa maksu työstäsi
Kuvaile ehdotustasi
Rekisteröinti ja töihin tarjoaminen on ilmaista
81 freelancerit tarjoavat keskimäärin £166 GBP tätä projektia

Hello, I have experience migrating SaaS-dependent apps to self-hosted architectures using Supabase, and your requirement to keep Base44 for development while removing it from production is achievable with a compatibility layer. My approach would be: • Audit the Base44 entities, SDK usage, and integrations • Replicate the schema in Supabase (PostgreSQL + Auth + Storage) with proper Row Level Security • Build a custom API layer that mimics Base44’s SDK so the existing code continues working with minimal changes • Replace Base44 services: * InvokeLLM → OpenAI * SendEmail → Resend/SendGrid * UploadFile → Supabase Storage Production will run fully independent of Base44, deployable via Vercel/Cloudflare/Docker, with a documented lift-and-shift workflow for future updates. Estimated timeline: 3-4 weeks. I’d be happy to review the current Base44 project structure and propose the exact migration plan. Best regards, Jenifer
£135 GBP 8 päivässä
9,4
9,4

Hello, I understand that you need an experienced full stack developer to migrate your Base44 application to Supabase using a lift and shift deployment model. I have a proven track record in handling similar migrations, ensuring a seamless transition while maintaining data integrity and application performance. My approach focuses on delivering a robust solution that includes thorough testing and validation post-migration to ensure everything functions as intended. I prioritize clear communication throughout the process, keeping you updated on progress and addressing any concerns promptly. Let’s discuss how I can help you achieve a successful migration with minimal disruption to your operations. Regards, Nurul Hasan
£200 GBP 21 päivässä
8,7
8,7

⭐⭐⭐⭐⭐ Migrate Base44 Application to Self-Hosted Supabase Infrastructure ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for an experienced full stack developer to migrate your Base44 application. Look no further; Zohaib is here to help you! My team has completed over 50 similar migration projects. I will ensure a smooth transition to Supabase while keeping Base44 for development. ➡️ Why Me? I can easily handle your migration project as I have 5 years of experience in full stack development, specializing in Supabase, PostgreSQL, and backend integrations. My expertise includes application migration, database management, and secure architecture design. Additionally, I have a strong grip on related technologies, ensuring a seamless process. ➡️ Let's have a quick chat to discuss your project in detail and let me show you examples of my previous work. I look forward to our discussion! ➡️ Skills & Experience: ✅ Full Stack Development ✅ Supabase Integration ✅ PostgreSQL Management ✅ Application Migration ✅ API Development ✅ Secure Architecture Design ✅ Data Migration ✅ Email Service Integration ✅ OpenAI Integration ✅ Deployment Pipeline Setup ✅ Row Level Security ✅ Documentation Skills Waiting for your response! Best Regards, Zohaib
£150 GBP 2 päivässä
7,8
7,8

Hi this is a structured backend decoupling and I have handled similar migrations where SaaS managed backends were replaced with Supabase and self hosted infrastructure while preserving the existing frontend logic. My proposed architecture keeps Base44 strictly as a development layer while production runs on Supabase PostgreSQL with RLS enforced per entity and a thin compatibility SDK that mirrors Base44’s data access patterns so existing calls remain intact. InvokeLLM will be replaced with OpenAI via secure server side functions, SendEmail via Resend or SendGrid, and UploadFile via Supabase Storage with signed URL handling. Deployment can be handled through Vercel or Cloudflare Pages with environment scoped secrets and CI based release flow to support repeatable lift and shift updates. Key risk areas include tight coupling inside Base44 SDK calls and undocumented entity logic, so the first step will be a deep audit and mapping matrix before schema design. Estimated timeline is 4 to 6 weeks depending on entity complexity and data migration volume. I can provide a phased fixed cost structure after reviewing the current Base44 project architecture.
£500 GBP 30 päivässä
7,5
7,5

Hello, I can migrate your Base44 app to a fully self-hosted Supabase backend while preserving Base44 as a development environment only. The production environment will be completely independent, with PostgreSQL, authentication, storage, and Row Level Security configured for security and scalability. Existing Base44 SDK calls will be replicated via a custom Supabase SDK so your code continues working with minimal changes. The migration workflow will include: auditing current entities, mapping to Supabase schema, migrating data, replacing InvokeLLM with OpenAI, SendEmail with Resend/SendGrid, UploadFile with Supabase Storage, and testing existing functions (generateBlogFromRss, sendContactEmail, notifyProductEnquiry) for seamless operation. A deployment pipeline will enable repeated lift-and-shift updates from Base44 to your self-hosted environment. Complete documentation will cover deployment, environment variable management, and maintenance. Final deliverables: fully working self-hosted production site, secure Supabase project, functioning integrations, and detailed lift-and-shift process. Thanks, Asif
£250 GBP 3 päivässä
6,6
6,6

Done Base44 to self-hosted migrations before. The tricky part here is building the custom SDK that mimics Base44's API surface so your existing app code doesn't need heavy rewrites. I'd map Base44 entities to Supabase tables, replace InvokeLLM with OpenAI calls, and swap SendEmail for Resend. The dev model you want - keep Base44 for building, export and deploy to your own infra when ready - is achievable with a proper deployment pipeline. Budget's a bit light for the full scope so happy to discuss realistic milestone pricing. - Usama
£350 GBP 14 päivässä
6,8
6,8

Hi, As per my understanding: you need a structured migration from Base44 to Supabase where production runs fully independent, while Base44 remains a development layer with a repeatable lift-and-shift deployment workflow. Implementation approach: • Audit entities and mirror schema in Supabase with RLS • Build SDK adapter to mimic Base44 APIs • Replace LLM, email, and storage integrations • Set up CI/CD and deployment documentation Queries: • Is complete data export access available? • Preferred production hosting target? • Expected timeline for first release cycle? I will share my portfolio on your first message.
£550 GBP 15 päivässä
6,9
6,9

As a full stack developer and team lead with a proven track record in software development, I have successfully worked on projects involving complex migrations and architectural transformations. My proficiency in Python, JavaScript, and PHP would be instrumental in ensuring a seamless transition from Base44 to Supabase for your app. I also have extensive experience with PostgreSQL and Supabase, making me well-versed with the technologies central to your project. Migrating an application requires careful alignment of data entities, which I can navigate through effectively. My prior works include the replacement of SaaS backends with self-hosted infrastructure and the incorporation of ML integrations like OpenAI. Hence, I am confident in initiating integrations alternatives to InvokeLLM and SendEmail services for you. From designing secure architectures (RLS & Authentication) to setting up deployment pipelines in tools like Cloudflare pages or Vercel, my experience is diverse enough to handle your project adeptly. Isolating the live production site from Base44 while still using it as a development environment holds great significance for this project. And this exactly where my key strength comes into play - my ability to think long-term and not just one-off migration. I don't believe in doing just a patchwork but working meticulously to create a system that can be maintained seamlessly for years without needing further intervention or reliance on external environments.
£135 GBP 7 päivässä
6,3
6,3

As a certified WordPress developer, I've been working in the web development industry for over a decade. My diverse team of 20+ professionals includes experts in key areas like mobile development, website design, website development, and graphic design. We are well-versed in multiple languages including PHP, JavaScript, PostgreSQL, Node.js and have rich experience with backend migration projects similar to your requirements. We'll construct your Supabase infrastructure to match Base44 entities precisely while incorporating necessary features such as Row Level Security (RLS). Our solution would empower you to develop seamlessly in Base44 while still being able to effortlessly export and deploy updated versions of your application onto your own hosting. I assure you a fixed timeline and cost estimate for this project. Though no concrete risks appear in this setup at present, I’ll ensure streamlined documentation on managing environment variables and secrets for any future cases that may arise. Let's discuss further!
£199 GBP 7 päivässä
6,3
6,3

Hi there,Good morning I am Talha. I can work with your project skills Cloudflare, PostgreSQL, JavaScript, PHP, Node.js, Full Stack Development, Amazon Web Services and API Development I am excited to present my proposal, which centers around a personalized approach designed to elevate your project. We will start with an in-depth consultation to gain a deep understanding of your project's unique requirements, goals, and constraints. Our commitment to customization means that we will tailor our services to align perfectly with your project, and we will explain how this approach will meet your expectations. Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan
£20 GBP 13 päivässä
5,9
5,9

Hello There!!! ★★★★ (Base44 to Supabase Migration) ★★★★ I understand you need a structured lift-and-shift migration from Base44 to a fully self-hosted Supabase backend, while keeping Base44 only for development. The goal is zero runtime dependency, clean data migration, and repeatable future deployments. ⚜ Full Base44 app audit & entity mapping ⚜ Supabase schema, Auth & RLS setup ⚜ Data migration to PostgreSQL ⚜ Replace InvokeLLM, SendEmail, UploadFile ⚜ Custom SDK to mirror Base44 APIs ⚜ Self-hosted deployment pipeline ⚜ Clear lift-and-shift documentation With 9+ years experiance in backend migrations and Supabase architecture, I’ve helped clients remove SaaS lock-in and build scalable, secure systems. My approach uses Supabase + Node.js services, OpenAI/Resend integrations, and CI/CD via Vercel or Docker to ensure repeatable deployments and long-term maintainability. Happy to share timeline, risks, and fixed cost — let’s discuss. Warm Regards, Farhin B.
£110 GBP 10 päivässä
6,5
6,5

Hi there, I’m Ahmed from Eastvale, California — a Senior Full-Stack & AI Engineer with over 15 years of experience building high-quality web and mobile applications. After reviewing your job posting, I’m confident that my background and skill set make me an excellent fit for your project — Developer Needed to Migrate Base44 App to Supabase with Lift and Shift Deployment Model . I’ve successfully completed similar projects in the past, so you can expect reliable communication, clean and scalable code, and results delivered on time. I’m ready to get started right away and would love the opportunity to bring your vision to life. Looking forward to working with you. Best regards, Ahmed Hassan
£150 GBP 1 päivässä
5,2
5,2

Developer Needed to Migrate Base44 App to Supabase with Lift and Shift Deployment Model I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
£20 GBP 3 päivässä
5,5
5,5

Hi I can design and execute this migration so Base44 becomes development only, while production runs fully independent on Supabase with zero runtime dependency. I have experience replacing SaaS backends with self hosted PostgreSQL based architectures and building compatibility layers to avoid large scale code rewrites. My approach would start with a structured audit of your Base44 entities, functions, and integrations. I would design a Supabase schema that mirrors your current data model, implement Row Level Security policies aligned to your existing access logic, and migrate all data safely. I will build a lightweight API compatibility layer that mimics Base44 endpoints so existing application code continues working with minimal changes. InvokeLLM will be replaced with OpenAI or equivalent through a controlled service wrapper. SendEmail will be migrated to Resend or SendGrid with proper webhook handling. UploadFile will move to Supabase Storage. I will configure deployment on Vercel, Cloudflare, or Docker based hosting and document a repeatable lift and shift workflow for future updates. Best, Justin
£135 GBP 7 päivässä
5,4
5,4

Hi there, I have architected vendor-independence migrations from low-code platforms to self-hosted Supabase infrastructure, building SDK compatibility layers that keep existing function calls intact, configuring RLS-secured PostgreSQL schemas, integrating OpenAI for content generation, Resend for transactional email, and setting up clean CI/CD pipelines on Cloudflare Pages and Vercel with proper secrets management. I'll audit your full Base44 entity structure, build a matching Supabase schema with RLS, create a custom SDK so functions like generateBlogFromRss and notifyProductEnquiry work without rewrites, migrate your data, wire up OpenAI and Resend replacements, configure your deployment pipeline, and document the full export-to-deploy workflow so every future Base44 update reaches production cleanly and independently. I can start the work immediately. Thanks.
£200 GBP 7 päivässä
5,5
5,5

Hi, As per my understanding: You want a structured migration of your Base44 app to a fully self-hosted architecture using Supabase, removing any production dependency on Base44 while still keeping Base44 as a development environment. The live app must run entirely on your own hosting, with Supabase handling PostgreSQL, Auth, Storage and RLS. Base44 SDK behavior should be mimicked via a custom compatibility layer so existing functions (generateBlogFromRss, sendContactEmail, etc.) continue working without major rewrites. All integrations (LLM, email, file uploads) must be replaced, data migrated, and a repeatable lift-and-shift workflow documented. Implementation approach: First, I will audit entities, SDK usage, and integrations. Then design a Supabase schema mirroring Base44 structures with proper RLS policies. A middleware/API layer will emulate Base44 endpoints so frontend code remains unchanged. InvokeLLM will be replaced with OpenAI (or equivalent), SendEmail with Resend/SendGrid, and uploads with Supabase Storage. Data migration scripts will ensure integrity and validation. Deployment will target Vercel/Cloudflare/Docker with environment-based configs. I will document the export, deployment, and secret management process for repeatable releases. A few quick questions: Does Base44 allow full code export without runtime hooks? Approximate database size? Any custom auth logic beyond Base44 defaults? Preferred hosting platform for production?
£98 GBP 5 päivässä
5,6
5,6

Nice to meet you , It is a pleasure to communicate with you. My name is Anthony Muñoz, I am the lead engineer for DSPro IT agency and I would like to offer you my professional services. I have more than 10 years of working as a Backend and Software developer, I have successfully completed numerous jobs similar to yours therefore, and after carefully reading the requirements of your project, I consider this job to be suitable to my area of knowledge and skills. I would love to work together to make this project a reality. I greatly appreciate the time provided and I remain pending for any questions or comments. Feel free to contact me. Greetings
£306 GBP 7 päivässä
5,9
5,9

Hello there, I’m a full‑stack developer with hands‑on experience migrating SaaS apps to self-hosted backends. I’ll approach this as a structured lift-and-shift, keeping Base44 as a development environment while porting all data, logic, and integrations to a self‑hosted Supabase stack. The result is a clean, repeatable workflow where updates are built inside Base44 and then exported to your own hosting, with no runtime dependency on Base44 in production. I have designed and implemented Supabase schemas that mirror existing Base44 entities, set up secure RLS, migrated data, and replaced backend services (LLM, email, file uploads) with equivalent self-hosted or API-based options. I’ll preserve the existing functions like generateBlogFromRss and send/notify calls with minimal or no code rewrites and create a robust deployment pipeline for repeatable lift-and-shift. Next steps would be a discovery session to confirm your current Base44 data model, followed by a phased migration plan and a fixed delivery timeline.
£150 GBP 1 päivässä
4,4
4,4

Hi, I can migrate your Base44 app to a self-hosted Supabase backend with zero production dependency on Base44. I’ll handle data migration, integrations replacement, and a smooth lift-and-shift deployment setup. Best regards, Shakila Naz
£100 GBP 7 päivässä
4,9
4,9

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I recently completed a migration project where we shifted a SaaS low-code application backend to a self-hosted Supabase setup, enabling smooth development and production separation without rewrites. The most important factor for success in this project is ensuring seamless API compatibility so the current Base44 frontend logic works unchanged with the new Supabase backend. Approach: ⭕ I'll audit your existing Base44 entities and SDK usage, design a matching Supabase schema with proper Row Level Security, implement a custom SDK mimicking Base44's API, migrate your data securely, and replace InvokeLLM, SendEmail, and UploadFile integrations with OpenAI, Resend/SendGrid, and Supabase Storage. I'll also set up a clean lift-and-shift deployment pipeline with thorough documentation. ❓ Could you share the current usage details or customizations in the Base44 SDK? ❓ Do you have a preferred email service provider? ❓ What infrastructure do you anticipate for hosting (Cloudflare Pages, Vercel, Docker)? I am confident in delivering a vendor-independent, scalable architecture that respects your development workflow and ensures long-term maintainability. I look forward to collaborating on this structured migration. Best regards, Nam
£150 GBP 1 päivässä
3,9
3,9

Gaerwen, United Kingdom
Liittynyt maalisk. 1, 2026
₹37500-75000 INR
₹100-400 INR/ tunnissa
₹37500-75000 INR
₹1500-12500 INR
₹12500-37500 INR
$30-250 USD
$10-30 USD
$250-750 USD
₹75000-150000 INR
₹1500-12500 INR
$15-25 USD/ tunnissa
€8-30 EUR
$110-150 USD
₹37500-75000 INR
₹12500-37500 INR
$300-350 USD
₹1500-12500 INR
$10-30 USD
$30-250 USD
₹1500-12500 INR