Backend / Full-Stack Engineer (API + Integrations)

@asifalimzd

Hi there, I’m a backend-focused full-stack developer with strong experience in Node.js, REST APIs, and system integrations. I can build and maintain scalable APIs, handle webhooks and third-party integrations, and ensure seamless connection between backend and frontend. I’m comfortable working with GitHub, Netlify, Render, and AWS, and I follow clean deployment and environment variable practices. How I connect backend to frontend: I expose structured REST endpoints, secure them (auth if needed), then integrate via frontend services/hooks (e.g., fetch/axios), ensuring proper error handling, loading states, and data mapping. I also validate responses and keep logic reusable. Debug approach (your filter question): I check API endpoint directly (Postman/cURL), verify server logs, confirm environment variables, inspect network tab in browser, validate request/response structure, and trace any CORS/auth issues step by step until data flows correctly. Kindly send me a message to discuss more. Thanks!

@rahuliitm69

Hi there, I am a senior full-stack developer with strong expertise in Node.js and API development, and I’ve delivered multiple backend systems involving REST APIs, third-party integrations, and scalable deployments, which you can check from my profile and Git hub. I can share my GitHub privately so you can directly review the code quality, API structure, and integrations I’ve worked on. My approach will be to first understand the existing flow (frontend ↔ API ↔ server), then structure or improve APIs with clear endpoints and validation, ensure proper environment handling, and set up clean integration flows (webhooks, external APIs). For the debugging question — when the frontend isn’t receiving data from the API, I start by checking the network requests in the browser (status codes, request/response). Then I verify the API endpoint directly using tools like Postman. If needed, I check backend logs, validate environment variables, and confirm CORS, headers, and deployment configs. This helps isolate whether the issue is in frontend, backend, or server quickly. I am comfortable working with GitHub, Netlify, Render, AWS, and handling deployments, environment variables, and API integrations end-to-end. I would request to connect on a quick chat. Thanks, Rahul A.

@softsolution2000

I am confident that my skills in JavaScript, NoSQL Couch & Mongo, Node.js, AngularJS, and Full Stack Development align perfectly with the requirements of the Backend / Full-Stack Engineer (API + Integrations) project. Once the full project scope is discussed, I am open to adjusting the budget accordingly. My priority is to deliver high-quality work within your budget constraints. I am eager to start working on this project and showcase my abilities. Please go through my profile, which showcases 15 years of experience, and the work I have done. Your satisfaction is my top priority, and I am ready to discuss the job details. I am even willing to start working on tasks before being officially hired to demonstrate my dedication to this project. I look forward to hearing from you.

@ZohaibRoy

⭐⭐⭐⭐⭐ Backend Engineer for Smooth API & Frontend Integration ❇️ Hi My Friend, I hope you're doing well. I’ve reviewed your project needs and see you are looking for a Backend/Full-Stack Engineer. You don’t need to look any further; Zohaib is here to help you! My team has completed over 50 similar projects focusing on backend systems and API integrations. I’ll build and maintain backend APIs, connect them to the frontend, and ensure everything runs smoothly. ➡️ Why Me? I can easily handle your backend and integration tasks as I have 5 years of experience in Node.js and REST APIs. My skills include problem-solving, managing deployments, and working with various integrations. I also have a strong grip on platforms like AWS and GitHub, ensuring a seamless workflow for your project. ➡️ Let's have a quick chat to discuss your project in more detail. I’d love to share samples of my previous work and explain how I can deliver excellent results for you. Looking forward to our chat! ➡️ Skills & Experience: ✅ Node.js ✅ REST APIs ✅ API Integrations ✅ GitHub ✅ Netlify ✅ Render ✅ AWS ✅ Webhooks ✅ Environment Variables ✅ Debugging ✅ Deployment Workflows ✅ Clear Communication Waiting for your response! Best Regards, Zohaib

@Herculesz

Hi I can handle your backend systems end-to-end, from building reliable Node.js APIs to connecting them cleanly with the frontend and managing deployments across environments. The main technical issue in these setups is usually broken data flow caused by misconfigured endpoints, environment variables, or integration failures between frontend, backend, and hosting layers. My approach is to design clean REST APIs, ensure proper request/response handling, validate environment configs across Netlify/Render/AWS, and implement structured logging to trace issues quickly. I work daily with Node.js, API integrations, webhooks, GitHub workflows, deployment pipelines, and debugging across full-stack environments. When connecting backend to frontend, I ensure endpoints are properly exposed, CORS is handled, auth flows are stable, and responses are structured consistently for the UI. I also focus on delivering fully working features, not partial implementations, with clear communication and fast iteration. I can share API examples and GitHub work that reflect this approach. Thanks, Hercules

@kamran2012

I looked at what you posted, I will build and maintain your backend APIs in Node.js, connect them to the frontend, handle webhook and external API integrations, and manage deployments across Netlify, Render, and AWS. Complete features, not partial handoffs. On your debug question: I check the browser network tab first for the request and response, then trace through the route handler server-side. Most failures are CORS config, a missing env variable on the deployed server, or a response shape the frontend does not expect. Questions: 1) Is there an existing API codebase, or am I starting fresh? 2) How do you assign tasks, GitHub issues, Slack, or another tool? Message me and I will share more on how I would handle this. Kamran

@rohan3188

Hi, Clean APIs, reliable integrations, and frontend-backend connections are exactly what I do. How I connect backend to frontend: - Define OpenAPI spec first — keeps contract honest - Backend: Node.js with Express/Fastify, env validation, structured error responses - Frontend: typed fetch clients (generated from spec) + React Query for caching and retries - Deploy: Netlify/Render frontend, AWS (Lambda/EC2) or Render for backend, GitHub Actions for CI Debugging when frontend isn't receiving data: - Check browser Network tab — request sent? response? status? - Verify backend logs — did it receive? any errors? - Confirm environment variables (staging vs prod) - Test endpoint directly (Postman/cURL) to isolate frontend vs backend - Check CORS, proxy config, and API gateway routing What you'll get: - Working features delivered end-to-end - Independent debugging — I don't wait to be unblocked - Clear updates and fast execution - GitHub & API examples available on request. Let's jump on a quick call to discuss your stack and timeline. Thank you

@kareemmaize

Hi there To reliably build and connect backend systems with frontend applications, the most critical part is ensuring clean API contracts, stable integrations, and predictable deployment workflows. I’ll approach this by structuring backend APIs in Node.js with clear endpoints and validation, then integrating them with the frontend while handling webhooks, external APIs, and environment configuration across Netlify/Render/AWS. I also focus heavily on debugging across layers to ensure features actually work end-to-end—not just in isolation. This means I understand your goal is not partial implementation, but fully working features with clean communication between systems. My process is simple: define API contracts and integration flow first implement endpoints and connect frontend properly test, debug across environments, and deploy cleanly Quick answer to your filter: when frontend isn’t receiving data, I trace request flow step-by-step—check network tab, verify endpoint/headers, inspect server logs, validate env variables, and confirm response format matches frontend expectations. I’m ready to jump in, review your current setup, and start delivering working features quickly..

@rizwange4

Subject: Proposal for Your Web Development Project Hi, Afte r reviewing the details of your project , I’m excited about the potential to collaborate with you. With over a decade of experience in web development, I’m confident in my ability to deliver exceptional results. Here’s why I believe I’d be a great fit for your project: Front-End Development: I have expertise in HTML, CSS, JavaScript, and Bootstrap, enabling me to create visually appealing, responsive designs. Back-End Development: Proficient in CodeIgniter, Laravel, MySQL, and PHP, I can provide robust and scalable solutions. Platform Experience: I am well-versed in WordPress, Shopify, WooCommerce, Elementor, and Webflow. Design/UI/UX: I specialize in Figma, jQuery, and converting PSD files to HTML to ensure a seamless user experience. I am available to start right away and can accommodate your schedule. I would love to discuss how I can help bring your project to fruition. Looking forward to your response! Best, Muhammad Rizwan LA

@AITSoft

Hello, I understand you need a backend/full-stack developer who can build solid APIs and connect them smoothly to the frontend. I know how important it is to deliver complete, working features rather than partial work. I am skilled in Node.js and REST APIs and comfortable with GitHub, Netlify, Render, and AWS, which matches your tools. I also know how to handle API integrations, environment variables, and deployment workflows well. My approach will be to quickly build and maintain APIs, ensure proper data flow between backend and frontend, manage necessary integrations like webhooks, and handle deployments carefully. I also focus on debugging issues independently across the whole stack to keep everything working tightly. Can you share how your current backend and frontend architecture is set up? What are the main challenges you’ve faced with API integrations so far? How do you currently handle authentication and security in your backend API integrations? Thanks,

@abhisaini0188

Hi, I’m a backend-focused full-stack developer with strong experience in Node.js, REST APIs, and system integrations. Relevant Experience: Built scalable APIs with authentication, webhooks, and third-party integrations Deployed and managed apps on AWS, Render, Netlify with proper env handling Debugged complex frontend ↔ backend data flow issues in production systems How I connect backend to frontend: Design clean REST endpoints Secure with JWT/auth middleware Connect via frontend (fetch/axios) with proper headers/env configs Handle errors + loading states for reliability Debug approach (your question): Check API response directly (Postman/cURL) Verify endpoint URL & env variables in frontend Inspect network tab (status codes, CORS, payload) Check backend logs for errors Validate deployment configs (ports, routes, proxies) I focus on delivering fully working features, fast debugging, and clean communication. Ready to start immediately. With Regards! Abhi

@blackrockwise

Hi there, I like how you have outlined your project description with clear expectations and requirements. You are seeking a skilled Backend / Full-Stack Engineer to build and maintain backend APIs, connect them seamlessly to the frontend, handle integrations such as webhooks and external APIs, and manage deployments with environment variables. The role demands strong expertise in Node.js, REST APIs, and familiarity with tools like GitHub, Netlify, Render, and AWS. With over 5 years of experience developing robust backend APIs and integrating them with diverse frontend frameworks, I am confident I can deliver complete, production-ready features efficiently. My skills include creating scalable REST APIs with Node.js, managing deployment workflows, and troubleshooting cross-system issues independently. I prioritize clear communication and quick task delivery, ensuring you receive consistent progress. To illustrate, I will share my GitHub profile showcasing multiple API projects and describe my approach to ensuring smooth frontend-backend connection, including thorough testing and debugging via network inspection and logs. I’m eager to learn more about your project details and how I can help you achieve your development goals. Let’s discuss how I can contribute to your team and deliver value quickly.

@umer6316326

Hi, I’ve thoroughly reviewed your project requirements and am writing this bid independently with full confidence in delivering an end-to-end backend and integration solution. I understand you need a strong backend engineer focused solely on API and integration tasks without any design work. With extensive experience in Node.js and REST API development, I specialize in building resilient backend systems and ensuring seamless connectivity to frontend layers using best practices. I’m also proficient with GitHub, AWS, Netlify, and Render, which aligns perfectly with your deployment and environment management needs. I can start quickly and commit to delivering fully functional, debugged features while maintaining clear and consistent communication. Looking forward to collaborating and finalizing the project scope and timeline. Which tools or logging practices do you currently use to trace and debug issues across frontend, backend, and server during integration failures? Thanks,

@SBITServices

Hi, I have the expertise to build and maintain backend APIs, connect endpoints to the frontend, handle integrations, manage deployments, and debug issues effectively. I am proficient in Node.js, REST APIs, GitHub, Netlify, Render, and AWS. I ensure seamless communication, rapid task completion, and delivering fully functional features. Let's discuss further. Regards, Sai Bhaskar

@Dimitarg1

Hi, This role fits my background well. I’ve built and maintained production APIs using Node.js and handled full backend ↔ frontend integrations across multiple environments (AWS, Render, Netlify). What I can do: * Design and build clean REST APIs (auth, validation, error handling) * Connect APIs reliably to frontend apps (React/Next) * Handle integrations (webhooks, third-party APIs) * Manage deployments, env variables, and CI workflows * Debug issues across client, server, and network layers I focus on delivering fully working features, not partial implementations, and I’m comfortable owning problems end-to-end. **How I connect backend to frontend:** I define clear API contracts (endpoints, payloads), implement the backend with proper validation, then integrate via fetch/axios on the frontend with error/state handling. I verify with Postman/cURL first, then test in the UI. **Debugging approach:** Check network tab (request/response), verify endpoint & env variables, test API independently, inspect logs (server + client), and trace data flow step-by-step to isolate the failure. API examples: Node/Express APIs with auth, payments, and third-party integrations. Ready to move fast and deliver. Best regards, Dimitar

@arbu1499

Hi, I understand you’re looking for a strong backend/full-stack engineer focused purely on APIs, integrations, and reliable system connectivity—not design work. I’ve built and maintained Node.js REST APIs with full frontend integration, including webhooks, third-party APIs, and deployment workflows across Render/AWS/Netlify environments. I’m comfortable handling environment variables, debugging cross-layer issues (frontend ↔ backend ↔ server), and ensuring features ship fully working—not partially implemented. My approach is to quickly isolate API failures using logs, network inspection, and server response validation to pinpoint whether the issue is in routing, auth, payload, or frontend handling. Looking forward for your positive response in the chatbox. Best Regards, Arbaz H

@jushuamurillo98

Hello, Client, I’ve carefully reviewed your project and am excited about the opportunity to work with you. With 7 years of experience in backend and full‑stack engineering, I specialize in building robust Node.js APIs and delivering seamless backend to frontend integrations. I am confident I can solve your API connectivity, deployment, and debugging challenges efficiently and effectively. Here’s my approach: Set up and structure clean, scalable REST APIs with proper environment management. Integrate frontend calls, external APIs, and webhooks while ensuring reliable deployment workflows. I am available to start immediately and aim to deliver the first working backend to frontend integration within 5 days. Additional instructions / notes (optional): I will provide clear GitHub commits and documentation for every feature. I will debug end‑to‑end from frontend requests to server responses. Best regards, Jushua

@johnallenvillan1

Hi, I’ve gone through your requirements, especially the emphasis on delivering fully working backend features and connecting them cleanly to the frontend. I’ve handled several Node.js API builds where I deployed to Netlify, Render, and AWS, including one project where I delivered a modular REST API powering a real‑time dashboard and resolved cross‑service sync issues. I see the real challenge here is ensuring the API, environment variables, and deployment pipeline stay aligned across dev and production. Most issues come from inconsistent configs or endpoint version drift, which is why I structure services with isolated environments and logging baked in. I’ll build clear REST endpoints, integrate external APIs or webhooks, and ensure the frontend receives consistent, typed responses. I’ll also set up deployment‑safe env handling and trace requests across services to keep debugging efficient. Before starting, I need to confirm your current hosting setup and whether the frontend is on Netlify or another platform. The next step is mapping your existing endpoints and integration needs. Thanks, John allen.

@melikatfz

Hello! I’m excited about the opportunity to collaborate on your project as a Backend/Full-Stack Engineer. With extensive experience in building and maintaining robust backend systems, I’m proficient in Node.js and crafting efficient RESTful APIs. I understand the importance of seamless integration between backend endpoints and the frontend, and have a solid track record of managing deployments and environment variables across platforms like GitHub, Netlify, Render, and AWS. I’m interested to know more about your current deployment workflows. Are there specific areas you’re looking to improve or optimize? Additionally, could you share more about the typical debugging challenges you face between the frontend and backend interactions? Let's discuss how I can help streamline your backend processes and enhance the overall performance of your integrations. Looking forward to hearing from you!