The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Node.js is an open-source cross-platform JavaScript runtime environment that allows developers to easily deploy JavaScript based applications and services. Node.js is built on Chrome's V8 JavaScript engine and can be used to create server-side applications that are secure, scalable, fast and efficient. Node.js Developers have the skills to build secure and performant web applications that can handle large volumes of data in an efficient way.
A Node.js Developer is a skilled programmer with experience in building modern web applications that employ technologies such as Node.js, JavaScript, HTML5, and CSS3. Node.js Developers are responsible for developing server-side web applications, creating user interfaces for websites or web applications, and developing APIs for servers or browsers. These developers also create custom plugins and modules that extend the functionality of existing applications or websites.
Using Freelancer.com to recruit Node.js Developers highly skilled at developing web applications is a great way of getting the job done quickly and efficiently.
Here’s some projects that our expert node.js Developers made real:
If you're searching for a Node.js Developer to join your team, hiring an experienced freelancer on Freelancer.com would be an ideal choice for completing your project quickly and efficiently with high quality results. It takes only minutes to post a project; after that you will be able to connect to potential freelancers who have the skills and experience needed for your projects. Hire a freelancer on Freelancer now!
Von 291,606 Bewertungen, bewerten Kunden unsere node.js Developers 4.9 von 5 Sternen.Node.js is an open-source cross-platform JavaScript runtime environment that allows developers to easily deploy JavaScript based applications and services. Node.js is built on Chrome's V8 JavaScript engine and can be used to create server-side applications that are secure, scalable, fast and efficient. Node.js Developers have the skills to build secure and performant web applications that can handle large volumes of data in an efficient way.
A Node.js Developer is a skilled programmer with experience in building modern web applications that employ technologies such as Node.js, JavaScript, HTML5, and CSS3. Node.js Developers are responsible for developing server-side web applications, creating user interfaces for websites or web applications, and developing APIs for servers or browsers. These developers also create custom plugins and modules that extend the functionality of existing applications or websites.
Using Freelancer.com to recruit Node.js Developers highly skilled at developing web applications is a great way of getting the job done quickly and efficiently.
Here’s some projects that our expert node.js Developers made real:
If you're searching for a Node.js Developer to join your team, hiring an experienced freelancer on Freelancer.com would be an ideal choice for completing your project quickly and efficiently with high quality results. It takes only minutes to post a project; after that you will be able to connect to potential freelancers who have the skills and experience needed for your projects. Hire a freelancer on Freelancer now!
Von 291,606 Bewertungen, bewerten Kunden unsere node.js Developers 4.9 von 5 Sternen.We are building a HIPAA-compliant healthcare data platform that ingests, enriches, and transforms clinical data from EHR systems, wearables, and external healthcare partners. Our platform: • Ingests raw healthcare events • Deduplicates and enriches data • Maps data into standardized formats • Separates PHI/PII from clinical data • Routes processed data into analytics and care coordination systems We are looking for a highly experienced senior full-stack developer to take ownership of our core backend platform. This is not a junior or mid-level role. You will be the primary engineer across two production services running on Google Cloud Platform. Tech Stack • Node.js (Express) • Python (Flask) • PostgreSQL (Cloud SQL) • BigQuery • GCP ...
We are building a next-generation ad monetization platform for web publishers. Think of a lightweight combination of Google Ad Manager, Freestar, and modern header bidding infrastructure. The system will allow: Admins to onboard publisher websites Configure ad formats & behavior Inject ads automatically Track revenue from GAM Apply commission Provide publishers with dashboards & payouts This is an MVP but must be built with production scalability in mind. We Expect Developers Who Understand Google Ad Manager Header bidding concepts Ad refresh & viewability Passbacks Programmatic reporting Ad ops workflows
Project Overview We are building a Google-based Building Performance Intelligence system for property management portfolios. The platform tracks: • SLA compliance • Task execution events • Audit scores • Rework & complaints • Certification scoring The system will serve: • Cleaning crews (task execution interface) • Supervisors (audit module) • Property managers (BI dashboard) The goal is to create an MVP that runs entirely on Google ecosystem tools Scope – MVP Phase 1 We need a developer to build: 1. Backend • Firebase or Supabase backend • Structured data model (Buildings, Zones, Tasks, Executions, Audits, Complaints) • Role-based access control 2. Web App (PWA preferred) User roles: • Cleaner &bul...
I need a mobile-responsive web app that lets visitors sign in through the Steam API, automatically pulling their SteamID so they can enter free sweepstakes with a single click. The core build should feel snappy on phones first, then scale gracefully to desktop. Key flow • User arrives, taps “Sign in with Steam,” and is authenticated via OpenID. • Once logged in, the site tracks each entry they make, stores it under their account, and presents a simple profile page that shows only their sweepstakes history. Sweepstakes engine An automated job must close each giveaway at the scheduled time, randomly select a winner from valid entries, and fire off both an on-site and email (or Steam message if feasible) notification. I also want an admin view where I can start...
Voglio sviluppare un software di automazione dei processi dedicato alla contabilità, con particolare attenzione a fatturazione Obiettivo Automatizzare il ciclo completo di fatturazione: dall’emissione delle fatture, riducendo errori manuali e tempi di gestione. Funzionalità chiave richieste • Creazione, invio e archiviazione di fatture elettroniche e PDF. • Dashboard riepilogativa dello stato fatture e fatturato • Esportazione dati in Excel/CSV e stampa report personalizzati. • Gestione utenti con ruoli e permessi. Requisiti tecnici • Front-end web responsive; preferenza per React o Vue, ma sono aperto ad alternative solide. • Back-end scalabile (Node.js, Django o simili) con API REST. • Database relazionale (Postg...
I need an Angular-based project, which is already built for manufacturing, deployed on a cloud server. I'm open to discussing which cloud service provider to use. Requirements: - Experience with deploying Angular applications - Familiarity with major cloud service providers (AWS, Azure, Google Cloud) - Knowledge of cloud server configurations and security best practices - Ability to troubleshoot and resolve deployment issues Ideal Skills & Experience: - Proven track record in cloud deployments - Strong understanding of Angular and related technologies - Good communication skills for discussing deployment options
Project Overview We are looking for an experienced full-stack developer (or agency) to build a specialized Legal Practice Management System (PMS). The core objective is to automate the drafting of complex legal documents (Conveyancing & Litigation), manage firm-wide accounting, and synchronize professional schedules. The application should be inspired by the workflow efficiency of platforms like Legalis and Jurifyte Pro, specifically tailored for the Malaysian legal market. Key Feature Requirements 1. Advanced Document Automation Template Engine: A system where we can upload Word/PDF templates with placeholders (e.g., «PurchaserName», «UnitNo»). Data Extraction: Ability to extract data from uploaded PDF files (like Sale & Purchase Agreements or Letters of...
I’m building an end-to-end marketplace that connects car-salvage yards with buyers looking for specific parts. The project covers two products working in tandem: 1. A cross-platform mobile app targeting both iOS and Android. Within the app users must be able to: • search the entire catalog of salvaged parts by keyword, make, model, year, and VIN • post new parts for sale from the yard side, including photos, descriptions, condition, price, and inventory count • chat in real time so buyers and yards can negotiate or confirm fitment before checkout 2. A responsive web dashboard for yard owners and internal staff. The dashboard needs robust: • inventory management (batch uploads, stock alerts, status changes) • user management (role-based access, suspension/ap...
I need a small-scale community-focused website that offers two sign-in options: Google OAuth (Gmail) and a classic email-and-password flow. The primary goal is community engagement, so once users are inside they must be able to create a profile, edit basic details, and exchange direct messages with each other. No e-commerce, no complex forums—just a clean, responsive space for members to connect. A lightweight tech stack is fine as long as it is secure and quick to deploy; React or Vue on the front end and Node, Django, or Laravel on the back end would all work if OAuth and secure password storage are implemented correctly. Mobile-friendly layout is required, and I’d like the initial build hosted on a standard cloud service (AWS, Heroku, Vercel, or similar) so I can test it li...
We're building - a multi-genre OTT streaming platform for Indian families with 120+ features including live streaming, video-on-demand, subscriptions, ads, and content management. IMPORTANT: Previous developer left messy code. We need someone to rebuild cleanly from our complete documentation (10 comprehensive sheets, 500+ specifications, complete codebase inventory). Project Status: • Documentation: 100% Complete ✓ • Specifications: 500+ detailed requirements ✓ • Codebase: 58% complete but messy code (needs rebuild) • Timeline: 3-4 months to production-ready platform You'll receive: ✓ Complete master documentation (Excel with 10 sheets) ✓ Codebase inventory showing what needs to be built ✓ 4-week implementation roadmap ✓ API specifications ✓ Database ...
deploying the official open-source backend components and integrating them with various third-party services for full functionality. • mainly our requirements our own infrastructure Self-Hosted with Custom Instance public rebranded messaging app. • Only people who have previously studied and worked on production-style Signal server architecture and structure should communicate • Those who have not previously studied and worked on production-style Signal server architecture and structure should not submit bid proposals. • The official source code is open-source and available on GitHub. • You only need to deploy and configure the Signal server only. The process requires significant technical expertise in server management, Java, database administrat...
Desarrollador/a Especializado en – Integraciones y Automatizaciones Descripción del Proyecto Estamos buscando un/a Desarrollador/a con experiencia en para trabajar en integraciones, automatizaciones y soluciones técnicas sobre la plataforma. es una plataforma omnicanal de mensajería empresarial impulsada por IA, que unifica conversaciones de múltiples canales (WhatsApp, Instagram, Messenger, correo electrónico, chat web, etc.) para ventas, marketing y soporte. Este rol es ideal para alguien con fuerte enfoque en desarrollo técnico, API, automatizaciones y escalabilidad de soluciones basadas en Respond.io. Responsabilidades Integración y Desarrollo Desarrollar integraciones con APIs de para conectar con otros sistemas (CRM, au...
Project: Retell AI ↔ Zenbooker Scheduling Bridge plus FluentCRM Lead Capture What we’re building: A backend bridge that lets Retell AI automatically book, reschedule, and cancel appointments in Zenbooker during live phone calls while also capturing leads immediately in FluentCRM for abandoned follow up sequences. Must have outcomes: When a caller tells Retell AI to book, reschedule, or cancel, the integration must * Create, reschedule, or cancel the correct appointment in Zenbooker * Trigger Zenbooker’s built in confirmation email automatically when a booking is created, assuming notifications are enabled * Handle reschedules and cancellations cleanly with no broken states and no double booking * Capture the caller as a lead in FluentCRM as soon as we have name plus pho...
I need a complete SaaS website built from the ground up. The platform must feel professional and corporate throughout—clean typography, confident colour palette, responsive layouts that look just as sharp on mobile as they do on a large desktop monitor. Core functionality I must see on day one: • Secure user authentication (sign-up, login, password reset, optional OAuth) • Subscription management tied to a payment gateway so users can upgrade, downgrade or cancel plans smoothly • Real-time analytics dashboards that surface usage and performance data inside the app without lag You’re free to choose the stack you work fastest with—whether that’s React + Node, , Django, Laravel, or something comparable—so long as the final codebase is well-...
I’m setting up a brand-new online store and want the entire build to run on Medusa JS. From the ground up I need: • Product catalog management that supports advanced inventory with variants (sizes, colors, bundles, etc.) • A smooth shopping-cart experience tied to a secure payment gateway • A fresh, custom design—there’s no existing wireframe, so you will shape both the look and the structure You’ll own the Medusa server configuration and extend it where necessary for variant logic, stock tracking, and order flows. On the front end, the goal is a clean, responsive storefront that showcases products clearly and converts well; I’m open to the stack you prefer as long as it pairs seamlessly with Medusa’s APIs. Acceptance criteria &bu...
I want to build a service marketplace app similar to Sheba/Urban Company. Structure: Category → Sub‑Category → Service (service is the base unit) Main Modules: 1) Customer App 2) Worker App 3) Admin Panel (Web) 4) Backend + Database + APIs Core Features: - Category/Sub‑Category/Service listing - Fixed & Variable Pricing Engine - Fixed & Variable Time Calculation - Booking System - Worker Matching (primary + extended radius) - Payment Integration (bKash/Nagad/SSLCommerz) - Big Job Module (inspection + verification) - Notifications - Service activation/deactivation - Promo support Admin Panel: - Add/Edit Category, Sub‑Category, Service - Set price type (fixed/per_sqft/per_room/per_unit) - Set base price, min/max price, base unit - Set time type (fixed/variable) - Set ba...
About the Role We are seeking a skilled Full Stack Developer with experience in Angular and Node.js to support ongoing and upcoming product development initiatives. This role is ideal for independent professionals who thrive in a remote, outcome-driven environment and can deliver high-quality, scalable solutions within defined timelines. You will collaborate with our internal engineering, design, and product teams to build and enhance modern web applications using a microservices and micro frontend architecture. Scope of Work Frontend Development (Angular) Develop and enhance responsive UI components using Angular Implement reusable modules and scalable frontend architecture Integrate APIs and backend services Optimize performance, accessibility, and responsiveness Collaborate with UI/U...
I need a responsive web platform paired with a cross-platform mobile app that lets engaged couples and their vendors run every aspect of a wedding from a single place. The core experience should mirror itself on web and iOS/Android so users can move seamlessly between devices. Key modules to build: • RSVP management with real-time status updates and guest messaging • Budget tracking that supports multiple spending categories, currency changes, and exportable reports • Vendor & supplier area where professionals list products or services and communicate directly with couples Authentication must recognise two roles—customers and vendors—each landing on dashboards tailored to their needs. Please incorporate industry-standard signup / login flows (OAuth ...
I need a full-featured website for Buddy Car Rental that mirrors the smooth user experience and overall structure of while being fully connected to for fleet and booking management. The site must present a modern, minimalist look—clean typography, generous white space, mobile-first layouts—so visitors can focus on finding the right vehicle without distractions. Core functionality is essential: a seamless online booking flow, real-time car availability pulled directly from , and a space for verified customer reviews to build trust. Please make sure availability updates instantly when a reservation is made or modified in Caren.io. Key deliverables • Responsive front-end pages (home, vehicle listing, individual car details, booking checkout, FAQs, contact) styled in a m...
I’m building a single digital ecosystem that merges several partner stores under one roof and doubles as a command centre for shoppers. Visitors must be able to browse a shared catalogue, find products quickly, and move through a checkout flow that hands orders to our offline fulfilment network. Before purchasing, they can even book a free doctor consultation through an integrated scheduler. The overall feel should strike a balance between simplicity and depth: first-time users see a clean, welcoming interface, while power users can dig into advanced filters, rich product data, and order-tracking tools when they choose. Core functionality I need: • Product search and discovery that pulls live stock from each connected store. • Seamless multi-store integration so one bas...
Project Overview: We are looking for a skilled developer to create a comprehensive ERP-based mobile and web application to automate and streamline work management processes in our manufacturing company. The application should integrate various modules to improve productivity, reduce manual errors, and enhance decision-making. Modules: 1. Sales & Order Management - Lead Management - Quotation Management - Order Processing & Tracking -sales documentation 2. Production Planning & Scheduling - Production Scheduling - Material Requirement Planning (MRP) - Resource Allocation 3. Work Order Management - Work Order Creation & Assignment - Task Management - Progress Tracking 6. Customer Complaint Management - Complaint Registration - A...
I have a frontend website developed in Wordpress , backend and apis in Node js , the Mobile app is in flutter but The problem i am facing is With the connectivity between wordpress and Flutter app.
I need A 1V1 Calling dating app. I purchase a Flutter App UI from codecanyon. The Work is Create Admin Panel UI Make It functional Create API Connect With App Create Database Modifi App UI According I need Demo Admin Panel ( I need Like This ) Admin panel : Account:admin Password:123abc Phone number:+447873398220 Demo App ( I need Like This ) 1) 2) payment milestone:- Admin Panel UI - 10% App UI - 10% Create API - 20% Create Database - 10% Admin panel Using Node JS - 30% Make Flutter App functional And Connect Admin panel And API - 10% All Testing Done And Ready to production - 10% Satisfaction:- 1. Admin Panel UI - Make According Demo And Submit Freelancer 2. App UI - Make According Demo And Submit Freelancer 3. Create API - All Api Perfect Work Submit Freelencer 4. Cr...
Our mobile app is already live on a staging domain, built with React Native, Node.js (Express) and MongoDB. I now need a full-stack developer who can dedicate the next seven days to finish three key items and move everything to our official domain. 1) Community auto-membership Every new registrant should be placed into the correct in-app community automatically when their professional email domain matches one that we map in the database. No manual steps—just detect, assign and save. 2) OTP email verification Before the first login the user must confirm ownership of that professional address. Generate a one-time six-digit code, send it via email, and allow a single attempt window with proper resend limits and expiry logic. 3) Production deployment The existing backend and adm...
I want to turn my “my tool sharing” idea into a live web platform, handling everything from the first pixel of the interface to the last line of server code. At its heart the site needs one thing done perfectly: users must be able to list their tools and let others search for them quickly and intuitively. This first phase focuses only on that listing-and-search workflow. Reviews, ratings, booking calendars, and other extras can wait, so please build the architecture with clean separation of concerns to make those future add-ons painless. You are free to choose a modern stack—React, Vue, or vanilla JS for the front; Node, Django, Laravel, or a similar framework for the back—so long as the code is well-documented, componentised, and backed by a reliable database su...
We are looking for an experienced AI/Backend Engineer (or small team) to help design and implement a foundational setup for an enterprise “Agentic AI” goal is to enable a prompt-based interface where business users can ask questions and trigger actions across internal risk management and document systems through a governed API layer. This is NOT a chatbot UI project focuses on backend architecture, AI orchestration, and secure enterprise integration. Target application includes IBM OpenPages SaaS (GRC) accessed via REST APIs. The first phase will implement a proof-of-concept that allows an AI agent to retrieve and update structured records using approved APIs via a secure middleware service. Scope of Work (Phase-1: Foundational Setup) Build a secure middleware API servic...
Project Name = "Follow me" We are a sport timing company for equestrian sports. So we have our live site on equestre.zeitmessungen.ch. We want it sends fans a WhatsApp notification when the selected rider or horse starts. To select Rider or Horse should be 2 modes: 1. on our live site you have to add a button for each horse and each rider. A window opens and the fan can enter his WhatsApp number. and the rider or horse is registered. 2. on the database of our federation the fan can search about a horse or rider. once found, the fan can enter their WhatsApp number. For this you have to add a seperate link at the root of the live site. From now each time the rider or horse comes to start and the fan receive a WhatsApp with text "Your favorite Horse/Rider is now on start an...
The developer should build a cross-platform AI-powered IT Help Desk agent and management system that supports Windows, Linux, and macOS. The system must include a backend API (preferably in Python FastAPI or Node.js) to handle ticket management, device registration, and command distribution, along with a secure database (PostgreSQL) and an optional vector database for AI knowledge retrieval. The agent itself should be written in a compiled language like Go for cross-platform deployment, capable of registering devices, reporting system info and heartbeat, detecting missing patches, restarting services, and executing safe commands remotely. The AI component should analyze incoming IT tickets, automatically suggest fixes, and optionally execute auto-remediation commands when safe. All communi...
We are developing a complete marketplace ecosystem that includes: Website ( (React Framework) Mobile App buyer and seller (iOS & Android) ( React native ) Store Owner Dashboards (React (or ) Advanced Admin Control Panel (React (or ) Digital Promotional Magazine (PDF System) Backend (Node.js (NestJS or Express) Our goal is to build a scalable digital mall where businesses can sell wholesale and retail products while benefiting from powerful marketing and management tools. Platform Owner (Admin) Features As the platform owner, you will have full strategic and financial control. Coupons & Campaign Management Create global coupon codes (fixed or percentage) Apply coupons to specific stores or categories Control expiration dates and usage limits Feature selected stores in disco...
Descripción: Hola, busco un desarrollador web/programador por horas para trabajar mano a mano conmigo en la mejora de un sistema de gestión para mi negocio de venta de tecnología. La dinámica de trabajo es única: 1. Trabajaremos en conjunto: Tú, yo y mi asistente de IA (Gemini Advanced). 2. La IA generará gran parte de la lógica, consultas de Base de Datos y fragmentos de código. 3. Tu trabajo será: Integrar ese código, verificar que funcione, corregir errores de sintaxis, conectar el backend con el frontend y asegurar que la base de datos registre bien la información. 4. No necesito que escribas todo desde cero, necesito que seas el "arquitecto" que ensambla las piezas que la IA y yo ...
Our MVP is live and stable; the only piece missing before launch is the licensing layer. I already have the logic mapped out for both geographical and categorical tiers, but I need the code that enforces those rules inside Odoo and keeps it in sync with our MEAN-based front end and the existing Python services. Here is what has to happen: • Build or extend an Odoo module that talks to our Node.js API, receives license-creation calls, and stores the resulting keys and usage limits. • Expose secure REST endpoints (or use RPC if you prefer) so the Angular front end can validate a license and retrieve project entitlements in real time. • Make sure the Python micro-services that run our billing routines can both read and write to the same licensing data, preventing race co...
I need a web-based application that lets me run every aspect of a high-school wrestling tournament from one screen. The core must cover participant registration, automated bracketing and seeding, match scheduling, real-time score tracking, live team scoring, and on-demand printing of brackets, bout sheets, and final results. Here’s how I picture the flow: • Coaches register athletes online, selecting weight classes and entering roster data. • The system seeds each bracket automatically yet allows manual tweaks when necessary. • Matches are scheduled across multiple mats and rounds, with clear matside displays. • Scores are entered live; individual results immediately roll into cumulative team standings. • At any point, I can print clean, ready-to-po...
My team needs a seasoned full-stack developer to step in as a consultant who can transfer knowledge rather than write code. I’m specifically looking for someone confident across frontend, backend, and database layers who can translate that depth into clear, structured technical training sessions. Your core mission is to design and deliver training that sharpens our developers’ practical skills. Expect to break down real project scenarios, walk through architectural decisions, explain code quality best practices, and answer ad-hoc questions as they come up. We work mostly with JavaScript/TypeScript, React, Node.js, and PostgreSQL, so fluency in these (or closely related stacks) will help you connect quickly with the team. Deliverables • A short training plan outlining top...
I’m searching for production-ready AI agents I can roll out across several verticals—specifically Healthcare, Real Estate, E-commerce, Blockchain, Crypto, and Social Media. Each solution must already be live somewhere so I can see it operating in real time before we move forward. The core requirements are straightforward: the agent needs to run in a browser, accept its own knowledge base or document set for context, and ship with source code plus clear documentation. I’m also expecting help getting the code stood up in a SaaS or on-prem environment. I’m flexible on architecture; whether you built it around OpenAI, Claude, Llama, FastAPI, Node.js, Pinecone, FAISS, or Weaviate doesn’t matter as long as it performs reliably at scale. To keep things simple, here...
I’m searching for production-ready AI agents I can roll out across several verticals—specifically Healthcare, Real Estate, E-commerce, Blockchain, Crypto, and Social Media. Each solution must already be live somewhere so I can see it operating in real time before we move forward. The core requirements are straightforward: the agent needs to run in a browser, accept its own knowledge base or document set for context, and ship with source code plus clear documentation. I’m also expecting help getting the code stood up in a SaaS or on-prem environment. I’m flexible on architecture; whether you built it around OpenAI, Claude, Llama, FastAPI, Node.js, Pinecone, FAISS, or Weaviate doesn’t matter as long as it performs reliably at scale. To keep things simple, here...
Hi I will share the details with the shortlisted candidates. thanks
I’m setting up a central repository where each of my subscribed clients—schools, companies, public bodies and similar organisations—can log in over the internet to view, upload and download their own estate-related and compliance documents such as surveys, inspection reports and certificates. Editing in the browser isn’t required; the goal is a “read, upload, download” portal that keeps every file in its original form. Here’s what I need built: • A relational database (SQL or comparable) that stores the file-metadata and user accounts. • A clean web interface that works on desktop and mobile, served from my own on-prem server. • Username-and-password authentication with session timeout and password-reset functions. • Rol...
Plaid + Chase Connectivity Issue via API Plaid + Chase OAuth Integration — "Invalid Credentials" After Successful OAuth Flow The Problem: We have a production Plaid integration (Node.js/Express) that connects bank accounts via Plaid Link. American Express and Capital One connect and sync perfectly. Chase fails every time with "Username or password incorrect" AFTER the OAuth flow completes successfully. The Flow: 1. User clicks Connect Bank → Plaid Link opens 2. User selects Chase → Plaid fires OPEN_OAUTH event 3. User redirects to Chase's website and logs in successfully 4. Chase redirects back to our app with oauth_state_id 5. Plaid Link re-opens with receivedRedirectUri 6. Plaid shows "Username or password incorrect" — connectio...
Tenho hoje o ChatPion funcionando, porém preciso levá-lo a outro nível. Estou aberto a duas vias: aprimorar diretamente o ChatPion ou, caso seja tecnicamente mais simples, desenvolver um novo chatbot do zero para minhas páginas do Facebook. O que é indispensável • Envio de mensagens em massa sem limites artificiais, inclusive para várias páginas simultâneas. • Integração com outras plataformas (APIs externas, CRM, e-commerce ou o que for necessário). • Respostas automáticas mais inteligentes, capazes de entender variações de texto e entregar conteúdo personalizado. Além disso, quero um painel central onde eu consiga disparar campanhas, alterar configu...
I have the complete source code for BDonor, a live web-app that is currently down because Clerk Auth hit its “100 user limit.” The break means I can’t even reach the admin panel, so I need a clean redeployment from the ground up. Right now the site is hosted on Vercel, but I’m open to keeping it there or shifting to something like AWS or Google Cloud if that would eliminate the Clerk ceiling and future-proof the project. I’m not certain which environment variables, build flags, or third-party hooks are mission-critical, so I’ll rely on your guidance to audit the repo, document what matters, and carry it over correctly. Key objectives • Spin up a fresh production instance under my own new accounts (hosting, auth, database, any other services). &b...
Design The Role We are looking for a Full Stack Engineer to take full ownership of building a non-custodial crypto payment gateway for USDC on Ethereum. You will not just be "writing code" from a ticket; you will be responsible for the entire delivery, including infrastructure, security, database design, and the admin dashboard. You are effectively acting as the Founding Engineer/CTO for this build. You must be comfortable making architectural decisions, setting up CI/CD, and securing a financial application. The System A compliant, on-chain payment rail that: Generates unique, one-time deposit addresses for users (HD Wallets). Detects incoming USDC transactions (Chain Indexing). Sweeps funds to a central treasury using EIP-3009 (Gasless Permits) to minimize ETH usage. P...
I want to launch a fully-featured, cloud-hosted lottery platform built on a hardened Node.js backend with a reliable database layer. New players will sign up with a classic email-and-password flow, then complete KYC before they can fund their wallet or join a draw. The exact KYC data points can be finalised together, but the process must be seamless and compliant. Core flow • A user tops up an internal wallet via PayPal (gaming category enabled), buys entries, and watches their balance update in real time. • On draw day a server-side, provably-fair randomiser selects winners; every draw, ticket purchase, and payout is written to an immutable audit log. • From my side I need an admin dashboard that shows live player stats, transaction history, and lets me trigger or sc...
Project: HeyKIVI – AI video communication platform (MVP completed), now moving into post-MVP scale-out. Main goals: Implement multi-tenancy + feature entitlement (customers only see their own use cases/features) based on Admin UI. Deliver continuous new use cases (frontend tile + backend workflow + HeyGen integration). Provide ongoing platform maintenance (bugfixing, hardening, small improvements). Pricing model: Fixed package for multi-tenancy/entitlements. Flat rate per new use case (continuous stream, varies by customer). Hourly rate for anything beyond these two fixed scopes. Tech stack: TypeScript, (API/backend), React 18 + Vite (frontend), PostgreSQL + Prisma, Docker Compose, Nginx, MinIO (S3), GitLab CI/CD, hosted on Hetzner (EU/Germany). Key responsibilities: backend ...
I’m looking for an experienced full-stack developer to review, audit, and improve my existing web application. The platform is already live, but I need a technical and UI polish to ensure everything works smoothly and efficiently. I want someone who can thoroughly test all features, identify issues, improve the UI/UX where needed, and clean up backend logic for better performance and structure. live here - Scope of Work • Review the entire website (frontend + backend) • Test all features and user flows • Fix UI inconsistencies and improve layout where necessary • Improve responsiveness across desktop and mobile • Refactor inefficient frontend components if required • Review backend API response structure and optimize it • Fix bugs and improve p...
I’m building a mobile-only app that needs a real-time text chat backend dedicated to one-on-one conversations. The goal is a lightweight, low-latency server that can authenticate users, deliver messages instantly, store chat history, and scale as the user base grows—all without the overhead of group or public room logic. I’m open to proven stacks such as Node.js with WebSocket/, Go with gRPC, or an equivalent solution that plays nicely with iOS and Android clients. End-to-end encryption, push-notification hooks (FCM / APNs), and a RESTful or GraphQL API for ancillary data are highly desirable. Deliverables • Production-ready server code with clear setup instructions • Secure user authentication and encrypted message transport • Message persistence (Mo...
I’m ready to take my Indian D2C brand online and need a full-stack developer who can turn the entire buying journey into a smooth, sales-driven experience. The focus is simple: increase sales of our physical products through a fast, reliable, and easy-to-use website. Here’s what I have in mind. Customers should be able to browse a clean catalogue, add items to a shopping cart without friction, check out via popular Indian payment methods (UPI, debit/credit cards, wallets), and immediately receive an order-tracking link they can follow in real time. Behind the scenes I’ll need an admin dashboard where my team can update products, view orders, and generate basic sales reports. To keep the site scalable and future-proof, use the modern stack you’re most comfortab...
I want a clean, fast portfolio site built entirely with the MERN stack—MongoDB, Express, React, and Node.js. The goal is to present my work and services in a professional, responsive layout that looks great on desktop and mobile alike. Key pages will include Home, About, Projects, and Contact, but I’m happy to discuss additional sections if you feel they will strengthen the overall presentation. No user accounts or authentication flows are required, so you can keep the build streamlined and performance-focused. Design matters: subtle animations, smooth page transitions, and an intuitive navigation bar will help the site feel polished. SEO-friendly markup and meta tags are also important so that search engines can pick up the content quickly. Please deploy the finished ...
I’m rolling out the first release of a job-searching platform that already sits on top of a community of 87 million professionals. The entire focus of this build is to let candidates search and discover employer-posted opportunities quickly and intuitively. Core scope • Job listings are the single feature we need live for launch. Employers must be able to create, edit, publish, and archive their openings through a straightforward dashboard, while seekers browse, filter, and save roles. • Only direct employers will post ads in this phase. The workflow has to reflect that—no agency fields, fees, or approval steps. • Clean, responsive UI that feels inviting to a global audience and scales to the size of our network. • Solid search & filter logic (k...
I’m looking for an experienced developer or small team to build a reliable real-time data scraping system for Evolution Gaming live game shows, using an authenticated LeoVegas session, and integrate it into my existing website SpinLytics.com. This project is strictly focused on data reliability. Evolution Gaming does not provide public APIs, so the system must extract live round results directly from the authenticated client session. A working and stable data scraper is mandatory and must be guaranteed by the developer. The system must collect live round data for Evolution game shows such as Crazy Time, Monopoly Live, Dream Catcher, Funky Time and similar. Each round result must be captured immediately when officially published, without missing rounds, without duplicates and in cor...
Please read carefully before bidding. We are building a production-grade AI-powered building inspection report platform. 90% was built in base44 however, base44 cannot parse pdf"s larger than 10MB, so we have hit a roadblock and decided to take another route. This is NOT: *A WordPress job *A Shopify job *A bubble/no-code job *A “prompt engineering” job *A basic CRUD web app This is a serious backend architecture project involving: PDF parsing (11MB+ technical reports) AI defect extraction Structured data normalization Repair cost estimation logic Long-running job orchestration Background workers / queues Multi-user concurrency Production deployment architecture NOTE: Required Technical Stack (Non-Negotiable) You must have experience with: Node.js or Py...
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