Frontend + Backend Developer Needed (React + FastAPI) – Node-Based Workflow App

@malkesh3m

⭐ Hello there, My availability is immediate. I read your project post on Frontend + Backend Developer (React + FastAPI). We are experienced full-stack Python developers with skill sets in - Python, Django, Flask, FastAPI, Jupyter Notebook, Selenium, Data Visualization, ETL - React, JavaScript, jQuery, TypeScript, NextJS, React Native - NodeJS, ExpressJS - Web App Development, Data Science, Web/API Scrapping - API Development, Authentication, Authorization - SQLAlchemy, PostegresDB, MySQL, SQLite, SQLServer, Datasets - Web hosting, Docker, Azure, AWS, GPC, Digital Ocean, GoDaddy, Web Hosting - Python Libraries: NumPy, pandas, scikit-learn, tensorflow, etc. Please send a message So we can quickly discuss your project and proceed further. I am looking forward to hearing from you. Thanks

@jackson325

Hello Neha, I understand you're looking for an experienced developer to enhance your node-based workflow app using React and FastAPI. I’ve successfully completed similar projects where I refactored components for better structure and optimized backend integrations, ensuring a seamless user experience. ✅My Plan: - Refactor existing node components to eliminate duplicate code. - Create a reusable base node component and develop 5 new sample nodes. - Improve UI and styling using a library of your choice for a clean, modern design. - Enhance Text node with auto-resizing capabilities and dynamic variable handles. - Integrate backend logic to process nodes and edges, ensuring responses are clear and user-friendly. Could you specify which UI library you prefer or if there are any specific design guidelines to follow? Additionally, are there any particular features you want prioritized? Best regards, Hongqiang Chen

@Rahulsingh5xz

Hello, I’m Rahul Singh from Team Velora. With 3 years of experience in React and Python/FastAPI development, I can refactor your node components into reusable abstractions, enhance the Text node logic with dynamic variable handles and auto-resizing, and integrate the frontend with a FastAPI backend for DAG validation. I will also deliver a clean, modern, and consistent UI. Please come into private chat to see examples of similar React + FastAPI workflow or graph-based projects we’ve completed.

@AnzhelikaAwesome

Hi, I understand you need a Frontend + Backend developer to refine a node-based workflow app using React and FastAPI, especially around node abstraction and backend integration. One assumption I have is that dynamic variable handling inside the Text node can get tricky with edge cases, so careful testing during development is vital. ✅ First, I would refactor the node components to create a reusable base without duplicating code. ✅ Then I'd enhance the styling to be clean and consistent using a suitable React UI library. ✅ Lastly, I would implement the backend integration ensuring correct graph validation and user alerts. I would NOT recommend rushing the UI improvements without solving the core node abstraction first, as it would lead to redundant work and confusing code. If this aligns, I can outline next steps right away. Best regards, Anjel

@dushyant317

I bring 13 years of professional experience delivering high-quality results. I have strong expertise in all the required skills listed for this project. My approach ensures accuracy, clear communication, and timely delivery. I am confident I can exceed your expectations with efficient, reliable work. Looking forward to contributing to your project—ready to begin immediately.

@oyenaikey

Throughout my 5-year career, I've honed my skills in Python-- greatly applicable for your project involving FastAPI and backend integration. Though the nature of my previous projects might not appear to align exactly with this particular workflow-builder task, there is an ultimate thread that unites them - automation and efficiency. In trading, just as in creating applications, the right tools, intelligently-built systems, and clear data processing are crucial: these are areas where my skills lie and will prove invaluable for your company. Moreover, I am highly versed in working with React (JavaScript), invaluable for the frontend development required in your project. Likewise, I am acquainted with graph structures and DAG logic- this is a further relevant strength of mine. It's equally essential to briefly address time-frame and costing. While quality work delivered promptly is what you're looking for, this alignment will come at no extravagant cost at all to your organization. I'm accustomed to taking on tasks under tight timelines, but more than this, I assure you efficient and well-crafted work - it's part of who I am as a dedicated professional. The bottomline is selecting me for this job ensures excellent quality within budget and on time - it's a win-win!

@chiragardeshna

Hi there, I help teams finish and polish React + FastAPI projects, especially node-based or graph-driven applications. I have 7+ years of experience building and refactoring React frontends and Python backends, including reusable component abstractions, clean UI systems, and API integrations. I regularly work with React Flow–style graphs, dynamic node logic, and backend validation such as DAG checks and structured API responses using FastAPI. I will refactor the node components into a clean base abstraction, implement the dynamic Text node behavior, improve UI styling, and wire the full frontend-to-backend submission flow exactly as specified. I am comfortable implementing DAG validation logic on the backend and presenting results clearly in the UI. I reduce risk by keeping changes modular, readable, and easy to review, and by testing each part incrementally before final submission. I am available to start immediately and can complete this within the 3-day window. UNLIMITED REVISIONS / 100% SATISFACTION / FREE SUPPORT Regards Chirag

@usamaansari786

Hi, I have reviewed your requirement, As a seasoned full-stack developer with expertise in both frontend and backend technologies, I am highly confident in my ability to complete your node-based workflow app project using React and FastAPI. I understand that your project not only requires optimization of the existing code but also entails enhancing the overall structure, UI, and backend integration, all areas I excel in. You will definitely appreciate my skill in refactoring code to remove duplicate instances, creating reusable components, and ensuring clean and modern styling utilizing CSS, Tailwind, or any React UI library. In addition to my 5+ year experience building scalable web apps with the MERN stack, I bring to the table a unique blend of automation skills. This is extremely valuable as it enables me to approach your project not just as a task for completion but as an opportunity to design a highly efficient workflow system. Drawing from my extensive experience automating systems with n8n, Make, and Zapier, I can improve your app's efficiency while dovetailing it seamlessly into your existing processes. Lets have a chat and we can briefly discuss the details there Warm regards Usama

@parthvichhi4

Hello, I have strong experience working with React (JavaScript) on the frontend and Python with FastAPI on the backend, and I have completed similar technical assessment–style projects involving component refactoring, UI improvements, and frontend–backend integration. I can refactor the node components into a clean, reusable abstraction, enhance the UI with a modern and consistent design, implement the dynamic Text node logic, and complete the FastAPI integration including DAG validation. I write clean, maintainable code and can deliver a fully working solution within 3 days.

@Parth0918

My purpose is to continuously learn, grow, and use my skills to solve real-world problems. I aim to deliver meaningful results, support others through knowledge sharing, and contribute positively to personal, professional, and social development with dedication and integrity.

@soumyadeepg45

Hello, I am confident in delivering your Node-based workflow builder project efficiently. I have strong experience with React (JavaScript) and Python (FastAPI) and have built interactive graph-based UIs with reusable nodes and backend integration. For Part 1, I will refactor node components into a clean, reusable base node, removing duplicate code and creating 5 sample nodes. For Part 2, I will implement a modern, consistent UI for nodes, inputs, buttons, and the canvas using CSS, Tailwind, or Material UI for a polished look. For Part 3, the Text node will feature auto-resize and dynamic variable handles, detecting {{variableName}} patterns and updating input handles in real time. For Part 4, I will integrate with FastAPI so that on Submit, all nodes and edges are sent to the backend, which will return node/edge counts and DAG validation, displayed clearly on the frontend. I follow best practices for clean, maintainable code and can deliver the full solution via repository or zip. With prior experience completing similar technical assessments, I estimate this project can be completed within 3 days. Looking forward to contributing to your workflow builder.

@Hsuji

As an experienced frontend developer, I can accurately convert your Figma design into a fully functional React or Vue application. I am skilled in HTML5, JavaScript, React.js, and Vue.js, and can structure clean, maintainable code using tools such as Hooks, Composition API, Styled-Components, or Tailwind, depending on project needs. With strong collaboration skills using Git, Postman, and Figma, I ensure smooth teamwork and can deliver up to 99% pixel-perfect accuracy based on my publishing background. I also have hands-on experience integrating APIs for SaaS projects, enabling seamless communication between front-end and back-end systems. My focus is always on writing elegant, flexible, and future-ready code that is easy to maintain and scale.

@cloudaxisltd

I’m confident I’m the ideal person for your project, especially given your need to create a clean, professional, and user-friendly node-based workflow builder with seamless frontend and backend integration. Your focus on reusable node abstractions and dynamic Text node logic aligns perfectly with best practices for automated and scalable React components. I bring strong skills in React and Python FastAPI, along with experience writing clean, maintainable code. While I am new to freelancer, I have tons of experience and have done other projects off site, including work involving DAG logic and integrated UI/backend systems. I would love to chat more about your project! Regards, Henning Munnik

@aduy000

I am a React Frontend Developer with strong experience in building clean, scalable UI and refactoring existing codebases. I can efficiently create reusable node abstractions, improve styling, and implement dynamic Text node logic such as auto-resize and variable-based input handles. My scope is strictly frontend-only, focusing on React components, UI behavior, and user experience. I am confident I can deliver a polished frontend solution within the given timeline.

@BehzadMehrabi52

Hi, I’ve worked on React + Python (FastAPI) projects involving structured UIs, dynamic components, and backend validation logic, and this assessment fits well with my experience. How I’ll approach this: • Refactor existing nodes into a clean, reusable base node component to eliminate duplication and keep the system scalable. • Implement the Text node enhancements (auto-resize + dynamic {{variable}} handle detection) using clean state management and regex-based parsing. • Improve UI consistency and usability with a modern, minimal design (Tailwind or clean CSS). • Integrate the frontend with FastAPI, send nodes/edges on submit, and validate the graph (node/edge count + DAG check) using a reliable algorithm. I focus on readable, maintainable code and completing technical assessments exactly as specified. Estimated time: 2–3 days Happy to start immediately and deliver a clean, working solution. Best regards, Behzad

@LukeKenyon

I am confident I can deliver exactly what you’re looking for, especially the “Dynamic Variable Handles” feature that requires precise detection and updating of variables within the Text node. My approach ensures careful execution with clear scope alignment and delivers exactly what’s defined—no assumptions and no shortcuts. I prioritize reliability, handling edge cases to maintain clean, consistent UI and flawless backend integration. Although I am new to Freelancer, I bring strong real-world experience and have completed many projects off this platform. I’d be happy to discuss the details whenever you’re ready. Regards, Luke Kenyon