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Description: Project Overview We are looking for an experienced Full Stack Developer / SaaS Developer / AI Developer or development team to build a scalable, secure, and production-ready SaaS product with Web, Mobile, and AI capabilities. The project involves end-to-end software product development, including a modern web application, mobile application, scalable backend, REST APIs, database architecture, AI/ML integrations, authentication, subscriptions, cloud deployment, and third-party API integrations. We are looking for someone who can take the product from concept and architecture through development, testing, deployment, and production launch. Scope of Work Web Application * Develop a modern, responsive SaaS web application * Build user dashboards and management panels * Implement responsive UI/UX * Develop frontend and backend functionality * Build scalable RESTful APIs * Implement authentication and authorization * Implement role-based access control (RBAC) Mobile Application * Develop cross-platform Android and iOS mobile applications * Implement API integration with the SaaS backend * Build authentication, user profiles, dashboards, notifications, and core product features * Ensure responsive, optimized, and production-ready mobile UX * App deployment to Google Play Store and Apple App Store AI Integration * Integrate AI/ML functionality into the SaaS product * AI-powered features, automation, recommendations, or intelligent workflows * Integrate LLMs and AI APIs such as OpenAI or similar platforms * Develop AI agents/chatbots where required * Implement prompt engineering and AI workflows * Integrate RAG, vector databases, embeddings, or knowledge bases where required * Optimize AI performance, reliability, and cost Backend & Database * Design scalable backend architecture * Develop REST APIs and backend services * Design and optimize SQL/NoSQL databases * Implement secure authentication and authorization * Build subscription and billing functionality * Integrate payment gateways * Implement third-party API integrations * Develop admin panel and system management features Cloud, DevOps & Deployment * Deploy web, mobile backend, AI services, and databases to cloud infrastructure * AWS / Azure / Google Cloud / Vercel or suitable alternatives * Docker and containerization * CI/CD pipelines * Production environment configuration * Domain, SSL, monitoring, logging, backups, and security * Performance and scalability optimization Preferred Technology Stack Experience with the following technologies is highly preferred: Frontend: React.js, [login to view URL], TypeScript Mobile: Flutter, React Native Backend: Node.js, Python, FastAPI Database: PostgreSQL, MySQL, MongoDB, Supabase, Firebase AI: OpenAI, LLMs, AI Agents, RAG, LangChain, Vector Databases, Embeddings Cloud & DevOps: AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD Other: REST APIs, GraphQL, Git, GitHub, Payment APIs, Third-Party API Integrations Equivalent technologies are also welcome if you can demonstrate strong experience. Ideal Candidate We are looking for a Full Stack Developer, SaaS Developer, AI Developer, Mobile App Developer, or experienced software development team with a proven track record of building production-ready digital products. The ideal candidate should understand: * SaaS architecture and multi-user systems * Full-stack web development * Mobile app development * AI/ML and LLM integration * API development and integrations * Database architecture * Cloud deployment and DevOps * Security and scalability * Clean, maintainable, and well-documented code Proposal Requirements Please include: 1. Examples of SaaS, web, mobile, or AI products you have developed. 2. Your recommended technology stack. 3. Relevant experience with AI/LLM integrations. 4. Estimated development timeline. 5. Fixed-price or hourly estimate. 6. Your proposed development approach and milestones. 7. Links to previous projects, GitHub, portfolio, or live applications where available. We are interested in establishing a long-term relationship with the right developer or development team. Future work may include additional features, AI integrations, mobile improvements, maintenance, scaling, and development of additional SaaS products. Tags: Full Stack Developer, Full Stack Development, SaaS Development, SaaS Product Development, SaaS Application, Web Application Development, Mobile App Development, Android App Development, iOS App Development, AI Development, AI Integration, AI Agent Development, AI SaaS, Generative AI, LLM Development, OpenAI Integration, RAG Development, Chatbot Development, React Developer, [login to view URL] Developer, Flutter Developer, React Native Developer, Node.js Developer, Python Developer, FastAPI Developer, REST API Development, API Integration, PostgreSQL, Database Development, AWS, Cloud Development, DevOps, Docker, Kubernetes, CI/CD, Custom Software Development, Software Product Development, Scalable Web Application, Subscription Platform, Payment Gateway, Admin Dashboard.
Project ID: 40640877
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Hi there, This project is very close to the kind of end-to-end work I already handle. My background covers Flutter and React Native mobile apps, React/[login to view URL] web apps, Node.js/FastAPI backends, PostgreSQL, Docker, CI/CD, payments, and AI integrations including OpenAI, LangChain, RAG, embeddings, and vector databases. A relevant example is an AI-powered recruitment platform I worked on with resume parsing, LLM-based candidate scoring, analytics dashboards, and 500+ job pipelines. I’ve also built production RAG systems and multiple mobile apps with authentication, payments, real-time features, and App Store/Google Play deployment. For your stack, I’d recommend React/[login to view URL], Flutter, Node.js or FastAPI, PostgreSQL, Docker, and AWS/GCP, with OpenAI + LangChain/RAG where needed. I’d break development into architecture, core SaaS backend, web/mobile apps, AI features, billing, testing, and production deployment. Would you be open to a quick call so I can review the product scope and give you a realistic timeline and cost? Ikrma PS: Russian Made Easy: [login to view URL] Auclux: [login to view URL]
$80 USD in 7 days
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136 freelancers are bidding on average $193 USD for this job

With over a decade of experience under my belt, I am confident that I am the right fit for your Full Stack SaaS Development project. Throughout my career, I have successfully developed a wide array of applications, including SaaS, web, mobile and AI products. I am well-versed in the technologies you've mentioned like React.js, Node.js, Flutter and more. The fact that you prioritize clean and scalable coding also aligns with my own philosophy of delivering top-notch code that is not only efficient but also easy to maintain. My client-focused approach ensures that we remain on the same page throughout the development process. Regular and transparent communication are integral to this approach. You can expect daily updates on the progress made along with a detailed analysis of the tasks completed. I fully understand the intricacies involved in developing a multi-user system with proper authentication and authorization features, as well as comprehensive API development and third-party integrations. In addition to being an experienced Full-Stack developer, I bring with me a strong background in machine learning and artificial intelligence. I can seamlessly integrate AI functionalities that will elevate your product's performance through intelligent workflows, automation or recommendation systems. Let's build something great together!
$140 USD in 7 days
8.0
8.0

You’re describing a full SaaS product, not just a simple app build, and that’s exactly the kind of project where architecture decisions matter early. We can help with the web app, mobile app, backend APIs, AI/LLM integration, subscriptions, and deployment in a structured phased approach. For a project of this size, I’d first help define the MVP, stack, and milestone plan clearly so the build stays scalable and production-ready. If you already have reference products or a feature list for phase 1, feel free to share them here.
$250 USD in 7 days
6.8
6.8

Hello, Building a SaaS product with web, mobile, and AI is not just about connecting technologies—it requires one scalable architecture where every layer works together reliably. Your requirement for a production-ready SaaS platform with web/mobile apps, AI workflows, APIs, subscriptions, dashboards, and cloud deployment closely matches our development capabilities. What We Can Deliver: • Responsive SaaS web app with dashboards and RBAC • Cross-platform Android/iOS apps using Flutter or React Native • Scalable REST APIs and secure backend architecture • AI/LLM integrations, chatbots, automation and intelligent workflows • RAG, embeddings and vector database integration where required • Subscription, billing, payment and third-party API integrations • Admin panel, authentication and secure user management • AWS/Azure/GCP deployment, Docker and CI/CD • Testing, monitoring, security and performance optimization • Complete source code, documentation and production deployment We recommend a modular, API-first architecture so the web, mobile and AI layers can evolve independently while sharing the same secure backend. Let’s schedule a quick 10–15 minute call to discuss your product concept and AI requirements. We can then suggest the right stack, milestones, and development roadmap for a scalable launch. Best Regards, Doomshell Software Pvt. Ltd.
$160 USD in 7 days
6.4
6.4

Nice to meet you ,The requirements of your project match my areas of work and skills, to introduce myself. My name is Anthony Muñoz and i am the lead engineer for DS Pro IT agency. I have worked for over 10 years as a Full-Stack and software development engineer and have successfully done multiple jobs. It will be a pleasure to work together to make your project. Feel free to discuss about the project with me, greetings.
$157 USD in 7 days
5.3
5.3

As an accomplished Full Stack Developer with a wealth of experience, teams and I have developed a wide array of marvelous digital products over the past 8 years. Named as 'transforming ideas into powerful Mobile Apps', I fully understand the complexity of your envisioned multi-faceted SaaS endeavor, both in terms of breadth and depth. My expertise includes not only the type of development you're looking for - frontend, backend, mobile, AI & more - but particularly the ability to deliver the whole package from concept and architecture to deployment and post-launch monitoring. My team and I have massive SQL/NoSQL DB Management experience (MongoDB and Firebase among them), we've built scalable RESTful APIs and recklessly integrated multiple third-party API's efficiently curating data for AI solutions proving our extensive AI integration skills as well. We're also well-versed in deploying all these on various cloud infrastructures (AWS, Azure, Google Cloud etc.) using CI/CD pipelines, Docker containers etc. with proven results. In terms of project management, we always make it a point to maintain clear and open lines of communication so that you're always aware of the progress being made. With us at the helm, you can expect nothing but high-quality code that is scalable, secure & compliant while meeting your development timeline at an estimated fixed-price/hourly model. Let's discuss your project!
$120 USD in 4 days
4.6
4.6

With my years-long expertise in full stack and mobile app development, REST API building, and effective backend development, I offer a range of valuable skills to your project. Having worked with various SaaS, web, mobile, and AI projects across industries including healthcare and e-commerce, I understand the unique complexities and challenges these projects can present - a knowledge that can only come from hands-on experience. My history with database architecture, secure authentication protocols, and interface design will help ensure that your platform is not just functioning but optimal in all aspects. Of particular relevance to this project are my specialization in developing cross-platform apps on React Native and Flutter and my experience with cloud infrastructure deployment using AWS. My deep understanding of AI/ML and LLM integration would prove extremely useful while building the AI functionalities you desire with technologies such as OpenAI, LLMs et al. Moreover, being well-versed with Docker , CI/CD pipelines and my general knack for deploying scalable backend frameworks should prove invaluable for making this product ready for production launch.
$30 USD in 1 day
4.5
4.5

Hello, To achieve the desired outcome of building a scalable, secure, and production-ready SaaS product with Web, Mobile, and AI capabilities, I would focus on developing a modern web application with responsive UI/UX, user dashboards, and management panels. Additionally, I would prioritize building cross-platform Android and iOS mobile applications integrated with the backend, ensuring optimal UX and deployment to app stores. For AI integration, I would leverage AI/ML functionality for automation and intelligent workflows, integrating with platforms like OpenAI. My experience includes similar projects where I have successfully developed SaaS platforms with subscription workflows and permission management. A few questions: What existing integrations need to remain untouched? Which workflow currently causes the biggest issue? Best regards,
$100 USD in 2 days
3.4
3.4

Hello, I checked your project "Full Stack SaaS Development | Web, Mobile App & AI Product Development" and already have a clear understanding of your requirements and how to deliver them efficiently. I have solid experience in Mobile App Development, HTML5, Full Stack Development, and I've successfully completed similar projects by delivering high-quality, scalable, and reliable solutions. Why choose me? * Strong expertise in Mobile App Development, HTML5, Full Stack Development * Clean, optimized, and scalable implementation * Fast communication and regular progress updates * Focused on delivering results, not just completing the task I'm ready to start immediately and would be happy to discuss the details. Best regards, Umer
$30 USD in 2 days
3.2
3.2

Hi, I've worked on full stack products that combine web applications, APIs, AI integrations, and cloud deployment, and the biggest advantage comes from designing the architecture properly before building features. One question: do you already have product requirements and wireframes, or is the architecture still being defined? I'd approach this by building a modular foundation so the web app, mobile app, AI services, authentication, billing, and APIs can evolve independently without creating unnecessary complexity. For AI features, I'd keep the workflows observable and cost efficient, using LLMs only where they add measurable value while separating prompts, retrieval, and business logic. The backend would expose clean APIs for both web and mobile clients, with secure authentication, scalable database design, and CI/CD from the beginning so deployments remain predictable as the product grows. Happy to discuss the architecture and help turn the product into a production ready SaaS platform.
$100 USD in 7 days
2.9
2.9

Hello, We have previously worked on similar projects, so we understand the requirements, development process, and potential challenges involved. Our experienced team can deliver your project with clean, reliable, and production-ready development. We will work closely with you to ensure the project is completed within your budget and agreed timeline, without compromising on quality. I’d be happy to connect and discuss your project in detail, understand your exact requirements, and suggest the best approach. Let’s connect and discuss the project so we can get started immediately. Looking forward to working with you.
$100 USD in 7 days
3.1
3.1

Dear Sir, I have more than 30 years experience in developing applications using .NET, Sql Server, .NEt Core, Azure and allied technologies. I also have strong exposure to Angular Typescript, NodeJs API, MySQL, MangoDB, etc. In case you need any clarifications, please feel free to contact us. Thanking you and best regards. Sanjay Kaul
$140 USD in 7 days
2.4
2.4

Hello, We reviewed your brief - a production-ready SaaS with web, mobile and AI: a responsive React web app with dashboards and RBAC, cross-platform iOS/Android apps, scalable REST APIs, subscriptions/billing with a payment gateway, and AI features via LLMs (OpenAI or similar) including agents/chatbots, RAG with vector databases and prompt workflows - from architecture through cloud deployment and launch. This is squarely our lane - we build MERN SaaS products, ship React Native/Flutter apps, and integrate LLMs, RAG and AI agents. Team of 20. One question: what's the core product/domain and the first AI feature, so we scope the RAG/agent layer and the MVP correctly? - APIE Technologies
$250 USD in 45 days
2.3
2.3

✅✅✅ Hi, there ✅✅✅ I am thrilled to submit my proposal for the development of your cutting-edge SaaS product with Web, Mobile, and AI capabilities. With my extensive experience in Full Stack Development, SaaS Architecture, AI Integration, and Mobile App Development, I am confident in delivering a top-notch solution that meets your requirements. For this project, I propose leveraging a technology stack that includes React.js, Flutter, Node.js, PostgreSQL, OpenAI, AWS, and Docker to ensure a robust and scalable product. My past projects include developing similar SaaS products with AI integrations, and I can provide examples of successful implementations upon request. I invite you to review my portfolio and previous projects on GitHub to see the quality of my work firsthand. I am eager to establish a long-term partnership with you to support future enhancements, AI integrations, and ongoing maintenance of the SaaS product. Let's collaborate to bring your vision to life and create a groundbreaking digital solution together. ✌️ Predrag ✌️
$140 USD in 7 days
1.9
1.9

Hi, I reviewed Full Stack SaaS Development | Web, Mobile App & AI Product Development and it’s a strong match for my experience in HTML5, Backend Development, Mobile App Development. I can handle the work from implementation through testing and final delivery, with a focus on quality, reliability, and clear communication. I’ve worked on similar projects and can share relevant examples if needed. I’m available to start soon and can provide a clear plan once we confirm the scope. Happy to discuss the details and get started. Best regards, Adnan Hussain
$30 USD in 7 days
2.0
2.0

I am an expert Full Stack SaaS Developer with extensive experience building cross platform solutions using React Native and Flutter. I have successfully delivered multiple end to end products including complex web dashboards and mobile applications integrated with AI capabilities. I specialize in developing robust REST APIs and implementing automated CI/CD pipelines to ensure seamless deployment across iOS and Android platforms. For your Full Stack SaaS Development project, I will provide a scalable architecture that supports both current requirements and future growth. My background in HTML5 and backend development allows me to handle the entire lifecycle of your product from database design to the final user interface.
$250 USD in 7 days
1.0
1.0

Hey — saw your post about Full Stack SaaS development including web, mobile app, and AI product features. Handling all three well is tough, especially making sure the AI integrates smoothly without slowing down the user experience. Quick question before we dive in: Are you planning to build this on a specific tech stack already, or open to recommendations that optimize performance across platforms? I’ve built SaaS products with native mobile and AI components connected seamlessly, focusing on scalable architectures that perform. If you send over your current specs or draft roadmap, I’ll take a look and share thoughts on the best approach.
$140 USD in 7 days
0.9
0.9

Hello, I'm bharghav, with 10 years of experience in Full Stack Development and Android, specializing in building robust, scalable applications. My background aligns perfectly with your need for comprehensive software solutions. I understand your project requires an end-to-end SaaS product with web, mobile, and AI capabilities. My approach will cover modern web and Android application development, scalable backend architecture, secure APIs, and seamless AI integration, ensuring a production-ready solution from concept to launch. Please initiate a chat so we can delve deeper into your vision and project specifics. Best regards,
$175 USD in 3 days
1.0
1.0

Hi, I looked over 'Full Stack SaaS Development | Web, Mobile App & AI Product Development' and can help with this. I build and maintain WordPress/WooCommerce sites along with PHP, Laravel, and JavaScript when custom work is needed — clean code, clear updates, and reliable delivery. Happy to share a couple of similar WooCommerce / web project examples if useful. I can start right away and will outline a simple plan once we confirm the exact workflow. If this sounds good, reply here and we can align on next steps. Best regards, Arslan Shahid
$30 USD in 7 days
0.9
0.9

Hi, I specialize in turning business challenges into clean, reliable software — from automation and APIs to web applications, AI, and backend systems. What sets me apart: I focus on outcomes, not just deliverables. Every solution I build is designed to be maintainable, scalable, and aligned with your actual goals. Let's build something great together. Thanks, Deva
$200 USD in 2 days
2.6
2.6

Hello, We have previously worked on similar projects, so we understand the requirements, development process, and potential challenges involved. Our experienced team can deliver your project with clean, reliable, and production-ready development. We will work closely with you to ensure the project is completed within your budget and agreed timeline, without compromising on quality. I’d be happy to connect and discuss your project in detail, understand your exact requirements, and suggest the best approach. Let’s connect and discuss the project so we can get started immediately. Looking forward to working with you.
$100 USD in 7 days
0.4
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