E-commerce Full Stack App Development

@KESHAVINFOTECH

Hi, This project goes beyond a standard full-stack build. The key challenges are the real-time Claude workflow, strict per-user isolation, and keeping token costs controlled while maintaining a responsive experience. In fintech, the biggest risks are usually data flow, auditability, and safe tool execution around market data and trading-related outputs. I would first focus on the core product loop: authenticated streaming chat, retrieval over your curriculum, tool calls to live data, and a billing/usage layer that enforces tier limits reliably. I have built production web apps where prompt design, logging, caching, and API error handling had to work together without hurting user experience or increasing spend. I also prioritize clean, reviewable implementation with a clear backend structure, testable integration points, and deployment you can inspect after each sprint. Initial focus would be auth and user roles, Claude streaming/RAG flow, usage metering, Stripe/subscription logic, and audit logging. Could you share whether the curriculum/content store and market data APIs are already defined, or should I design that integration layer as part of the build?

@webbookstudio

Hi there, We understand you're looking for a Full Stack Software Developer to build an AI-driven fintech product, specifically a real-time AI tutor and trading co-pilot integrating the Claude API, proprietary curriculum, market data, and quantitative research. At Webbook Studio, we have experience with full-stack development, including projects like a music voting mobile app built with React Native, Node.js, and REST API, and an e-commerce platform for a Scandinavian fashion brand using WooCommerce and custom design. Our team is proficient in JavaScript, Node.js, and modern frontend frameworks like React, and we have hands-on experience with integrations of third-party APIs, including payment systems like Stripe. We can deliver a production-ready LLM application with a streaming chat interface, retrieval over proprietary content, and compliance-aware infrastructure. Can you share more about your expected timeline for this project and how you envision the collaboration process? Feel free to message us to discuss the details! — Webbook Studio

@ahmadayaz

With a robust background in AI-driven fintech product development using JavaScript/TypeScript, React, Node.js, and API integration, I am well-equipped to tackle the real-time AI tutor and trading co-pilot project using the Claude API. My experience in deploying production applications, integrating APIs like LLM, optimizing token costs, and ensuring compliance in financial environments makes me a strong fit for this role. I bring a strategic mindset to the position, understanding the importance of secure authentication and compliance-aware infrastructure in the financial sector. With expertise in cloud deployment (AWS, GCP) and CI/CD, I can deliver a scalable solution for your subscription-based financial product. I am eager to work collaboratively, focusing on short, rapid iteration cycles to achieve weekly objectives, address technical risks, and ensure cost efficiency. Let's partner to align your business goals with innovative technological solutions for both current and future projects, driving your fintech products to new heights. I am excited about the opportunity to contribute to your team. Please let me know the next steps so we can discuss further. Thank you for considering my application.

@diektech

Hi — Elias here from Miami. I see you’re looking to build an AI-driven fintech e-commerce application. It's crucial to ensure that the platform meets today’s demands and scales as user needs evolve. A common issue in systems like this is managing the complexities of integrations and ensuring reliable data flow between the frontend and backend. What usually matters most here is maintaining a solid architecture that supports future expansions without sacrificing performance. My approach would involve creating a modular system architecture that emphasizes maintainability. I prioritize clear API endpoints for seamless integration and robust state management to handle user sessions efficiently. This ensures that the platform remains responsive and can adapt to changing business requirements. I’ve worked on similar projects, focusing on fintech solutions that require high security and data integrity. This experience has taught me how to anticipate potential pitfalls, especially around user permissions and compliance. A few questions to better understand the scope: Q1 – What user roles and permissions do you envision for the platform? Q2 – How do you plan to handle payment gateways and transaction security? Q3 – Are there specific integrations with existing systems you’re aiming for? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.

@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 PHP, JavaScript, Software Architecture, eCommerce, MySQL, Full Stack Development, Backend Development, Frontend Development, Database Management, AI Development 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.     

@ZohaibRoy

⭐⭐⭐⭐⭐ Build AI-Driven Fintech Products as a Full Stack Developer ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for a Full Stack Software Developer. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects in fintech development. I will create a real-time AI tutor and trading co-pilot using the Claude API, focusing on seamless integrations and efficient deployment. ➡️ Why Me? I can easily handle your full-stack development needs as I have 4+ years of experience in JavaScript, Node.js, and Python. My expertise includes building web applications, API integrations, and user management. I also have a strong grip on cloud deployment and LLM APIs, ensuring a comprehensive approach to your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you my previous work. I'm excited to collaborate with you! ➡️ Skills & Experience: ✅ JavaScript/TypeScript ✅ Node.js ✅ Python ✅ React ✅ REST API Design ✅ SQL & NoSQL Databases ✅ LLM API Integration ✅ Payment Integration (Stripe) ✅ Cloud Deployment (AWS, GCP) ✅ User Authentication ✅ Error Monitoring ✅ Agile Development Waiting for your response! Best Regards, Zohaib

@KatrinaQ

Hi, I'm a senior developer with 20+ years of full-stack experience, including 1,500+ shipped projects, and I've built LLM-powered fintech products before, so this fits my expertise. I'll architect the system in layers: first the Claude API integration with streaming chat, RAG over your curriculum, and tool-use for market data; then Stripe billing with metering and tier enforcement; followed by authentication, user isolation, and audit logging for compliance. I'll use a React frontend with WebSockets for real-time responses, a Node.js backend with PostgreSQL for user data, and deploy on AWS with CI/CD for rapid iteration. I'll add rate limiting, prompt caching to control costs, and error monitoring for uptime. I can start immediately and outline the timeline after reviewing your existing codebase.

@starttechno

A 24/7 Claude-powered tutor and trading co-pilot is exactly what I build. For the streaming chat I'd use the Claude API with SSE so tokens render live, RAG over your curriculum via embeddings in pgvector/Postgres so answers stay grounded in your content, and tool use to pull live market data mid-conversation. Model tiering (routine turns on a cheaper model, hard quant reasoning on a stronger one) plus prompt caching on your curriculum and system prompts keeps cost predictable, and I'd track per-user token/unit-cost so you see real margin per subscriber. Billing would be Stripe subscriptions with usage metering, tier enforcement and fair-use limits at the middleware layer. For the regulated side: disclaimer enforcement, output logging, guardrails and immutable audit trails, with per-user data isolation baked into auth. Your CRM, trading-data and white-label partner integrations I'd build as clean adapters so new partners drop in without touching core. One scoping question: for the market-data tool calls, do you have a specific feed in mind (Polygon, Alpaca, a broker API), and does the tutor need true real-time or is delayed data fine on the tutor side? Muhammad Saad

@ajharul

Hi, I can help build and ship your AI-powered fintech platform, from the frontend and backend to Claude AI integrations, Stripe billing, secure authentication, API integrations, and scalable deployment with clean, maintainable code. With 7+ years of experience in web development and AI automation, including Claude AI integrations, custom web applications, and workflow automation, I deliver reliable solutions through fast, iterative development and clear communication. Regards, Ajharul

@VirasatSolutions

Hi, Your vision of building an AI-powered fintech platform with a real-time trading co-pilot and tutor is exactly the type of product I enjoy developing. I have experience building full-stack applications with AI integrations, REST APIs, workflow automation, and scalable cloud deployments. I can help you build a production-ready platform featuring: Claude/OpenAI-powered AI assistant with streaming responses RAG pipelines, embeddings, and conversation memory Secure authentication and user management Stripe subscription billing and usage metering Market data & third-party API integrations Real-time dashboards, WebSockets, and analytics AWS/Vercel deployment with CI/CD, logging, and monitoring I write clean, modular, and well-documented code, making it easy to review, maintain, and scale. I'm comfortable working in fast iteration cycles, participating in weekly sprints, documenting technical decisions, and adapting quickly to product feedback. I value clear communication, proactive problem-solving, and delivering production-quality features on schedule. Whether it's AI architecture, backend services, frontend development, or deployment, I can take ownership from implementation to production. I'd be happy to discuss your technical roadmap and how I can contribute to building a scalable AI-first fintech platform. Best Regards, Abhishek | Virasat Solutions

@point2solutions

Hi, Your AI-powered fintech platform is an exciting opportunity, and our team has the expertise to build secure, scalable, production-ready LLM applications with modern web technologies. We have experience developing AI SaaS platforms, real-time applications, payment integrations, and cloud-native architectures that align well with your requirements. Features: RAG & Vector Search Real-time Streaming Chat Secure Authentication Stripe Subscription Billing Usage Metering & Analytics Third-party API Integrations Market Data Integration Audit Logs & Compliance CI/CD & Cloud Deployment We've built AI-powered applications with LLM integrations, streaming responses, retrieval pipelines, secure authentication, payment systems, and scalable cloud infrastructure. Ping Me.. Thanks!

@ozbas

As a Full-Stack programmer for over 10 years, I have diligently crafted strong competencies in several key areas relevant to your project. In terms of frontend and backend proficiency, I have expertly worked with JavaScript/TypeScript, React, Node.js, and Python - which are pivotal for developing high-performance applications. Additionally, my experience in creating REST APIs, implementing secure authentication mechanisms and leveraging databases (SQL and NoSQL) will be valuable in harmonizing the ecosystem of your e-commerce platform. A standout attribute that differentiates me from the competition is my hands-on exposure to integrating third-party APIs such as AI models, payments (Stripe), banking/brokerage rails, etc., as well as the prowess of using trading data services and web platform. Moreover, having created scalable architecture on cloud platforms like AWS and GCP while seamlessly handling CI/CD gives me an edge in executing similar vital components in your project. Additionally, we seem to share key values - a rapid iteration style that prioritizes direct feedback loops resonates strongly with how I prefer conducting my projects. I bring along with me an unequivocal drive towards complete client satisfaction

@corpmember29

12 I'm interested in this Full Stack Software Developer opportunity. I have experience building scalable web applications using React, TypeScript, Node.js, and integrating LLM APIs to deliver AI-powered features. I've worked across the full development lifecycle—from backend architecture and frontend implementation to API integrations, deployment, and performance optimization. I believe my experience aligns well with your requirements, and I'd be glad to share my resume, portfolio, and examples of LLM-based projects I've built, including the optimizations I implemented for cost and latency. I look forward to discussing how I can contribute to your AI-driven fintech platform. Best regards, Christina

@offshore9006

Hi there, We’re a team of AI engineers and full-stack developers with 25+ years of software delivery experience, building production-grade fintech, SaaS, and AI applications. We've developed LLM-powered solutions using Anthropic Claude, OpenAI, RAG pipelines, vector databases, streaming chat, agent workflows, Stripe billing, and secure cloud deployments. Our team has delivered platforms integrating financial data, payment gateways, CRM systems, and real-time APIs with a strong focus on scalability, auditability, and security. We work comfortably in fast-moving founder-led environments, delivering weekly sprint milestones, documented code, CI/CD pipelines, and transparent communication. We've optimised LLM applications through prompt caching, context compression, retrieval tuning, response streaming, and intelligent model routing to reduce latency and inference costs while maintaining response quality. We'd be excited to help build your AI trading tutor from architecture to production and become a long-term technical partner. Best,

@efanntyo

Hi there, I am excited to submit my proposal for your E-commerce Full Stack App Development project. With over 4 years of experience in full-stack development, I have a proven track record of building robust, scalable web applications. Your project aligns perfectly with my expertise in JavaScript, Node.js, and LLM APIs. I understand you're looking to develop an AI-driven fintech product utilizing the Claude API. I have hands-on experience in designing LLM-powered features, including prompt architecture and streaming responses, which I have implemented in previous projects using Anthropic and OpenAI APIs. Additionally, my experience in integrating payment gateways like Stripe and working with third-party APIs ensures seamless connectivity and compliance. For this project, I propose adopting an agile development process with weekly sprints and demo-driven progress reviews to ensure alignment with your technical and product direction. My approach will focus on building a secure, scalable, and compliance-aware infrastructure while optimizing for cost and latency. I have successfully shipped products that required real-time data processing and user management, ensuring a smooth and secure user experience. My experience with cloud deployments on AWS and utilizing CI/CD pipelines will further streamline the development process. I look forward to the opportunity to contribute to your project and help bring your innovative fintech product to life. Best Regards,

@vladang

Building a 24/7 AI tutor and trading co-pilot isn't just about connecting the Claude API; the harder part is keeping streaming responses, retrieval, live market data, billing, and compliance working together without costs drifting as usage grows. I'd approach it by getting the core request flow stable first: prompt orchestration, retrieval over your proprietary curriculum, tool calls to market data, and per-user conversation state, then layer in subscription metering, audit logging, and platform integrations. One detail that matters here is treating streaming responses and tool execution as separate events so usage and token costs are tracked accurately even when requests are interrupted. I'd also keep prompt caching and model tiering isolated behind a single service, making future model changes much easier without touching application logic. One question: is your existing web platform already handling authentication, or should user identity and access be part of this build as well?

@umairdev101

I am a full stack developer with extensive experience building AI driven fintech applications and e-commerce platforms. For your E-commerce Full Stack App Development project, I offer a deep proficiency in PHP and JavaScript to create high performance software architecture. I have successfully integrated AI models into backend systems using MySQL for complex data management and delivered seamless frontend interfaces. My background includes developing secure payment gateways and automated financial reporting tools. I am ready to implement the specific AI features your product requires while ensuring a scalable database structure. I have built similar systems that handle high transaction volumes with low latency.

@InterconnectBPO

I will deliver a robust full-stack application that integrates AI-driven features, ensuring a seamless user experience from backend to frontend. My expertise in rapid iteration cycles will align perfectly with your vision for an AI tutor and trading co-pilot. Your emphasis on building a production LLM application on the Claude API, along with user management and compliance-aware infrastructure, resonates with my experience. I understand the importance of integrating third-party APIs and maintaining clean, documented code. With 4+ years of full-stack development, I specialize in JavaScript, Node.js, and have hands-on experience with LLM APIs. We have 20+ 5-star reviews on similar projects! I look forward to discussing how I can contribute to your innovative fintech solutions. Regards, InterconnectBPO

@Zeeshan0489

Hello I’ve reviewed your AI-driven fintech full-stack project and I’m confident I can deliver end-to-end with fast iterations, robust security, and production-grade quality. I bring PHP, JavaScript, MySQL, and SQL expertise to design scalable backend with software architecture discipline and a clean frontend. I will build a Claude API-based LLM app with streaming chat, retrieval over proprietary content, per-user memory, and secure authentication plus per-user data isolation. I will implement REST APIs, Stripe payments, and cloud deployment with CI/CD. I will add usage analytics, audit logs, guardrails, and monitoring for uptime. I propose a 1-week sprint to deliver streaming Claude chat, content retrieval, and per-user memory, followed by billing and data integrations in subsequent sprints. Best regards, Freelancer