API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

93,437 건의 리뷰 기록에서, 저희 프리랜서( API Developers )에 대한 거래선 측의 평가는 별점 5점 만점에 4.9점입니다.
API Developers 분야 채용

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

93,437 건의 리뷰 기록에서, 저희 프리랜서( API Developers )에 대한 거래선 측의 평가는 별점 5점 만점에 4.9점입니다.
API Developers 분야 채용

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    165 찾은 프로젝트

    Raising Funds For/ We need a website built around this registered name, RaisingFundsFor, that helps non-profits to raise funds by selling one of our tee shirts. The following provisions should be included: 1) Place to upload and display the current shirt style that the non-profit chose from our library. 2) Admin area for the main domain name of RaisingFundsFor that allows us to create a library of shirt styles, and collects and stores all data by the participants name, and allows us to send mass emails to everyone in the combined database, and accumulates orders that each participant generates. 3) An order form that includes: Charity’s name (RaisingFundsFor/St Patrick High School) Consumer’s name that is on the credit card, street address, City, ST, & Zip code, phone numb...

    $398 Average bid
    $398 (평균 입찰가)
    138 건의 입찰

    Looking for an Experienced Full-Stack Development Company We are looking for a professional software development company to design and develop a complete Travel ERP, CRM, B2B & B2C Booking Platform for Al Nabawi Umrah & Hajj Services Pvt. Ltd. Project Requirements Corporate Website B2C Customer Portal B2B Agent Portal Admin Panel Employee Portal Supplier Portal CRM & Lead Management Visa Management System Umrah & Hajj Management Hotel Booking System Flight Booking System Tour Package Management Payment Gateway Integration WhatsApp, SMS & Email Integration API Integration (Flights, Hotels, Visa, Payment) Multi-Company & Multi-Branch Support Multi-Currency & Multi-Language Android & iOS Mobile Apps (Flutter Preferred) Reports & Analyti...

    $247 Average bid
    $247 (평균 입찰가)
    50 건의 입찰

    This project centres on transforming a broad idea into a fully-working digital product. Scope is intentionally open so we can pick the most suitable route—whether that ends up being a web application, a mobile app, or a piece of bespoke software. The same flexibility applies to technology: React, WordPress, Django and comparable stacks are all acceptable as long as they match the agreed-upon feature set, performance goals, and long-term maintainability. Key expectations • Collaboratively refine requirements into a concise technical specification. • Propose and justify the stack, architecture, and milestone plan. • Build, test, and deploy the solution in incremental, reviewable stages. • Provide clean, well-documented code plus a short hand-over guide. Ac...

    $250 Average bid
    $250 (평균 입찰가)
    56 건의 입찰
    Egyszerű térképes eseményapp
    6 일 left
    인증 완료

    Egy könnyen kezelhető, letisztult mobilalkalmazást szeretnék, amelyben a regisztrált tagok eseményeket rögzíthetnek egy ingyenes térképalapon, és ugyanitt böngészhetik is a többiek bejegyzéseit. Mind az eseményt létrehozó, mind a csak megtekintő felhasználóknak kötelező a regisztráció, hogy minden funkció elérhető legyen. Fő funkciók • Térkép – Kifejezetten „Ingyenes” megoldásra építenék, ahol licence-díj nélkül használható a térképi réteg. • Esemény-rögzítés – A felhaszn...

    $377 Average bid
    $377 (평균 입찰가)
    18 건의 입찰
    Extension Payment & Supabase Setup
    6 일 left
    인증 완료

    I have a cross-browser extension (Chrome, Firefox and Edge) that is nearly ready for a public beta and now needs a rock-solid subscription layer and cloud backend. The Razorpay gateway is already wired in, but I need you to review every part of that flow, tighten security, add the right webhooks and push clean subscription metadata into Supabase so the extension can enforce usage limits and sync settings across devices. Here is the concrete scope: • Payment layer – Audit the existing Razorpay integration, ensure tokens are handled securely and failures are surfaced gracefully. – Create/verify webhooks for success, failure, renewal, cancellation and expiry. • Supabase & backend – Design the tables for plans, users and usage, then hook them...

    $73 Average bid
    $73 (평균 입찰가)
    36 건의 입찰

    I need an Android application that handles the full visitor flow for my facility. At reception I want staff to be able to register a guest either by typing the details in or by scanning a QR code that the guest brings along. The only information that must be captured is the visitor’s name and contact information; photos, ID documents or vehicle make can be added when available but should never block the check-in. Core actions are check-in and check-out on the same device, plus a searchable log that lets me pull up past entries instantly. Basic operations—adding a visitor, viewing today’s list and recording a check-out—must keep working when the device loses connectivity. As soon as the connection is restored the app should push all new records to my server through ...

    $6 / hr Average bid
    $6 / hr (평균 입찰가)
    49 건의 입찰

    I'm looking for an experienced Revit programmer to help develop add-ins and create custom Revit families, specifically structural elements like beams and columns. Key Requirements: - Develop Revit add-ins/plugins - Create custom Revit families for structural elements - Custom tool creation within the add-ins Ideal Skills and Experience: - Proficiency in Revit API - Experience in developing Revit add-ins - Strong understanding of Revit family creation, especially for structural components - Programming skills (C#, .NET, etc.)

    $128 Average bid
    $128 (평균 입찰가)
    65 건의 입찰

    I want a single, centralised web application that lets every department in my event-management company work from the same screen. The platform must handle three core areas: • Event planning & scheduling: an interactive calendar that syncs with Google/Outlook, lets me assign tasks to team members, and triggers automated email/SMS reminders as deadlines approach. • Vendor & supplier management: tools for uploading and signing contracts, rating supplier performance over time, and processing invoices and payments inside the system. • Staff & personnel management: role-based dashboards so each department—right down to our welder crew on site—can log in, receive assignments, track hours and update progress. The app has to be responsive, secure and eas...

    $79 Average bid
    $79 (평균 입찰가)
    45 건의 입찰

    I run a programme that hires part-time workers across Turkey to post “hunting” ads on several competing classified platforms. Each worker must hit a fixed daily quota and we settle their earnings at the end of every month. To keep everything transparent, fast, and scalable, I need a comprehensive system that lets us assign, monitor, and verify those daily posting tasks in real time.

    $123 Average bid
    $123 (평균 입찰가)
    100 건의 입찰

    Tôi muốn xây dựng một phần mềm mới và đặt yếu tố bảo mật lên hàng đầu. Phiên bản đầu tiên chỉ cần tập trung vào lõi chức năng và hệ thống phòng thủ an toàn để chứng minh khái niệm. Những gì tôi mong đợi: • Kiến trúc và mã nguồn rõ ràng, dễ bảo trì. • Cơ chế bảo mật cao: xác thực, phân quyền, mã hóa dữ liệu nhạy cảm. • Tài liệu thiết lập môi trường, hướng dẫn triển khai và tài liệu kỹ thuật mô tả các lớp bảo mật đã tích hợp. • Gói kiểm thử đơn giản (unit test hoặc script kiểm tra lỗ hổng phổ biến) để tôi tự chạy và x&aacut...

    $2 - $8 / hr
    $2 - $8 / hr
    0 건의 입찰

    I’m building an AI-powered legal platform whose core purpose is document review and analysis. The system must ingest contracts and other legal papers, understand their structure, then surface the clauses, obligations, dates, and potential red-flags in a way that saves hours of manual reading.

    $27 / hr Average bid
    $27 / hr (평균 입찰가)
    120 건의 입찰

    I want the official WhatsApp Business API fully configured so my team can offer real-time customer support from a standalone application. The goal is clear: customers should be able to message us on WhatsApp and instantly receive an automated greeting, be routed to a live agent when needed, and have every conversation stored for easy tracking and follow-up. Key elements • Automated responses that fire immediately after a message is received (welcome, office hours, basic FAQs). • Live chat hand-off so agents can jump into the same thread without losing context. • Conversation and customer-query tracking, including tags or status flags we can export for reporting. Because I am not connecting this to an existing CRM or e-commerce platform, the project must include a l...

    $88 Average bid
    $88 (평균 입찰가)
    52 건의 입찰
    $44 (평균 입찰가)
    25 건의 입찰

    I’m building a complete e-commerce presence that includes both a public-facing website and a companion web application. The goal is a fast, secure and fully responsive experience that works flawlessly across modern browsers and devices, scales easily as traffic grows, and integrates smoothly with payment gateways, inventory services and any other APIs we decide to plug in later. Here’s what I need from you: • Design and develop the front end with clean HTML, CSS and JavaScript, leveraging a modern framework—React, Angular or Vue.js are all on the table, so feel free to pick the one that best fits the architecture you outline. • Build out a solid back end, set up the database layer, and wire up the required API endpoints. • Optimise for performance (Co...

    $441 Average bid
    $441 (평균 입찰가)
    118 건의 입찰

    Title: Established Indian Web Development Company Required for Long-Term PHP Partnership We are an established German web and digital production company looking for a professional and experienced web development company based in India for a long-term partnership. We already work with a team of five people, but due to our growing workload and increasingly complex projects, we need additional development capacity. We are not looking for an individual freelancer or a small team of a few developers. We are specifically looking for a larger, well-organised company with sufficient senior-level expertise, internal project management and the capacity to provide continuity. The work will include: • Developing complete websites and web applications • Maintaining, improving and extendin...

    $146 Average bid
    $146 (평균 입찰가)
    104 건의 입찰

    DESENVOLVIMENTO DE PLATAFORMA AGRITECH - MARKETPLACE DE PRODUTOS FRESCOS SOBRE O PROJETO: Estamos desenvolvendo uma plataforma inovadora de escoamento rápido de frutas e legumes frescos das províncias para a capital (Angola/Luanda). O modelo opera com pré-venda e distribuição imediata (cross-docking), conectando grossistas/fretistas a consumidores finais e pequenos negócios. O QUE PRECISAMOS: 1. APLICAÇÃO MÓVEL PARA CLIENTES (iOS/Android) Cadastro e autenticação de usuários Catálogo de produtos com fotos em tempo real Sistema de pré-venda com data de entrega prevista Carrinho de compras e checkout Múltiplas formas de pagamento (referência Multicaixa, transferência, pagamento...

    $584 Average bid
    $584 (평균 입찰가)
    68 건의 입찰

    Audio Streaming Platform Development (Web, Android, iOS & Admin Panel) We are looking for an experienced development team to build a modern audio streaming platform for Web, Android, and iOS, along with a comprehensive Admin Panel as detailed in the attached PDF. The application should provide a premium user experience for discovering, streaming, and managing audio content while following an original UI/UX design and branding. The product must not copy or reproduce any third-party application's proprietary design, assets, or intellectual property. User App Features User registration & secure authentication Audio streaming with adaptive quality Search, categories, and personalized recommendations User subscriptions for premium content Offline downloads with subscription/lice...

    $617 Average bid
    $617 (평균 입찰가)
    29 건의 입찰

    I’m building a new e-commerce website and the first milestone is a smooth, reliable shopping-cart experience. I need a full-stack developer who can take the project from a blank repo to a live site: setting up the front end, wiring it to a secure back end, connecting the cart logic, and deploying everything on a hosting platform of your choice. For this initial phase the only feature in scope is the cart itself—product listings, add-to-cart, update quantities, remove items, and a persistent cart across sessions. Payment gateway integration and user accounts will come in a later sprint, so keep the architecture flexible enough to bolt those on without rewrites. Deliverable: • A responsive e-commerce site with functional shopping cart, pushed to a Git repository and deploy...

    $423 Average bid
    $423 (평균 입찰가)
    187 건의 입찰
    Custom E-commerce Payment Gateway
    6 일 left
    인증 완료

    I need a seasoned developer to build a payment gateway entirely from scratch something like . The core engine must process real-time sales, captures, refunds, and voids while meeting strict PCI-DSS requirements and passing 3-D Secure 2.0 checks. Connections to be established: Cybersource, Mastercard Payment Gateway Services, and several domestic bank APIs (full specs will be shared after NDA). All routing, tokenisation, and risk responses should be abstracted behind a clean REST/JSON interface so the storefront can call a single, unified endpoint regardless of the underlying acquirer. Multi-currency support is essential; settlements will initially run in USD, EUR, and AED, with room to add more. Please architect currency tables, FX mark-ups, and reconciliation reports accordingly. ...

    $139 Average bid
    $139 (평균 입찰가)
    138 건의 입찰

    # Development of a WooCommerce Plugin with Multi Store Shopify Integration, Secure Routing, and Correct Order Tracking ## Project Description I am looking for a developer experienced in WordPress, WooCommerce, PHP, JavaScript, Shopify Admin API, webhooks, and web application architecture to rebuild from scratch an integration system between a main WooCommerce store and multiple Shopify stores. The current system already has a functional flow, but it presents serious security, tracking, data integrity, and product identification failures in the orders. For this reason, I am not looking only for specific fixes. The objective is to develop a new solution that is documented, secure, testable, and ready for production. The system must camouflage the traffic origin because Shopify must not h...

    $487 Average bid
    $487 (평균 입찰가)
    158 건의 입찰

    The task is to create a complete, server-based file-sharing application from scratch. I want a standalone file server that handles uploads, downloads, permission management, and performance optimisation in a single, well-architected solution. Scope • Design the overall architecture (front-end, back-end, storage layer). • Develop the core file-handling APIs and the web interface. • Implement granular user and group permissions. • Optimise transfer speed, concurrency handling, and storage efficiency. • Containerise and script deployment so the server spins up smoothly on a fresh Linux instance. • Provide concise documentation covering build steps, configuration, and maintenance. Tech stack is flexible: Node.js with Express, or Python with FastAPI, ...

    $75 Average bid
    $75 (평균 입찰가)
    32 건의 입찰
    Deploy Node.js App to Firebase
    5 일 left
    인증 완료

    I have a fully written internal work-product web application whose backend is pure JavaScript running on Node.js. The code is ready but still lives only on my local machine. I now need it: • Checked into Google Antigravity with a clean commit history • Deployed to Firebase Hosting (or a comparable platform if you can explain the advantage) • Wired so every existing route, API call and environment variable behaves exactly as it does locally • Documented with a short, step-by-step read-me so I can repeat the deployment myself later Acceptance criteria 1. The site loads over HTTPS from the chosen host. 2. All current internal workflows operate without new errors. 3. Source appears in Google Antigravity, properly structured. Front-end was “vibe coded&rd...

    $28 Average bid
    $28 (평균 입찰가)
    144 건의 입찰
    Connect Antigravity to Local Ollama
    5 일 left
    인증 완료

    Antigravity is already installed and my Ollama daemon is serving four-five local LLMs flawlessly. Antigravity’s agents talk to those models entirely offline. We will hop on AnyDesk or Zoom—my preferred interface for this job—and you’ll: • Point Antigravity to the localhost endpoints exposed by Ollama • Verify bidirectional communication with at least one sample prompt/response per model • Leave me with the edited config files or environment variables and a quick note of the steps taken No other integrations are required—just Antigravity ↔ Ollama. Once we can pull responses from the local models without touching the cloud, the task is complete.

    $58 Average bid
    $58 (평균 입찰가)
    11 건의 입찰

    I have a working proof-of-concept at that already accepts messages and returns AI-generated answers. Now I want to tighten the scope so that the bot focuses exclusively on customer support questions and delivers fixed, brand-approved replies rather than free-form text. Here’s what I need from you: • Wire the existing interface to a response engine that looks up and serves a predefined answer for every recognised query. • Keep fallback logic minimal: if an incoming message is outside the catalogue, simply surface a polite “let me transfer you” hand-off flag (no live routing required right now). • I will supply the complete list of Q&A pairs as soon as the project starts; structure it in whatever format is most convenient for you (CSV, JSON or a li...

    $75 Average bid
    $75 (평균 입찰가)
    43 건의 입찰
    Reddit & News Reply MVP
    5 일 left
    인증 완료

    I need a lean MVP that automatically hunts for conversations where my web app can be mentioned in a helpful, brand-building way. The workflow is straightforward: 1. Crawler • Scan Reddit plus Google News (blogs and articles surfaced). • Harvest threads and comments. 2. AI Scoring • Rank each conversation primarily on its relevance to the app and the overall popularity of the post or thread. • Ignore low-signal chatter; keep only high-potential mentions. 3. Drafting Replies • Use an LLM to generate a concise, promotional reply that feels organic and value-adding, not spammy. 4. Dashboard Review • Queue the top-scoring replies in a simple web dashboard. • I must be able to edit any draft before it goes live and q...

    $449 Average bid
    $449 (평균 입찰가)
    238 건의 입찰

    Project Name: I am looking for an experienced Full Stack Developer to build Phase 1 (MVP) of , an enterprise-grade e-commerce platform. The project includes: • Customer Website • Admin Panel • Shopkeeper Panel • Salesman Panel • Product Management • Category Management • Brand Management • Inventory Management • User Registration & Login • Order Management • Responsive Design • React Frontend • Node.js Backend • PostgreSQL Database • REST API • Role-Based Access Control • Live Chat Support • User Reviews & Ratings • Multi-Language Support • Razorpay / PhonePe / Cashfree Payment Gateway Integration • Shipping Service Integration The code must be clean, secure, scalable, well...

    $522 Average bid
    $522 (평균 입찰가)
    78 건의 입찰

    I need a single, scalable platform that can provision a complete white-label solution for every retailer I onboard. When a new store registers, the system must automatically create: • A customer-facing Android and iOS app published under that store’s own name, logo and colour palette • A private customer database that is fully isolated from other tenants • A browser-based admin panel where the store’s staff can handle inventory, billing & invoicing, CRM tasks, offers with push notifications, and real-time sales reports Behind the scenes everything runs on a true multi-tenant architecture, yet from the retailer’s point of view it feels like a stand-alone system. Performance, security and the ability to scale to thousands of tenants are non-negotiab...

    $259 Average bid
    $259 (평균 입찰가)
    45 건의 입찰

    I am building an online hub to manage and showcase mixed-use properties. The platform must let visitors: • run fast, filterable property searches • open rich property-detail pages with photo galleries and floor plans • review up-to-date agent profiles, including contact widgets • step through high-quality virtual tours that play smoothly on desktop and mobile A secure backend for uploading listings, photos, 360° media and agent information is also required so my team can keep content current without touching code. Deliverable: a fully deployed, responsive web application (or tightly integrated CMS) that covers the four features above, performs well on modern browsers, and is ready for real-world data. Source code, basic documentation and a brief walkthrough...

    $10 / hr Average bid
    $10 / hr (평균 입찰가)
    57 건의 입찰

    Senior AI Engineer / Full-Stack Developer Required – AI SaaS Platform We are seeking an experienced AI engineer or full-stack developer to design and build a scalable, enterprise-grade SaaS platform that combines AI automation, CRM, communication tools, and business workflow management. This is a long-term retained engagement rather than a one-off development project. We are looking for a technical partner who can help architect the platform, recommend the most suitable technology stack, and continue developing and enhancing the product over time. Core Requirements The platform will include AI-powered features such as: * AI sales and workflow automation * CRM and customer management * AI-generated emails and follow-up sequences * Call transcription, summaries and task generation...

    $85 Average bid
    $85 (평균 입찰가)
    115 건의 입찰

    I have a live application whose core runs on PHP while several service layers are written in Node.js. Everything works—until the JSON we pass between layers silently shifts and breaks the backend. Right now I only need bug fixes; no new features or tuning, just rock-solid stability. Here’s what I’m dealing with: • backend endpoints intermittently return malformed or incomplete JSON • downstream PHP code then throws errors or stops responding altogether Your job is to trace where the JSON structure changes, correct the offending Node or PHP handlers, and make sure the same schema is respected throughout every call. Once the patch is in place I’ll want the updated code committed to Git and a brief note of what was changed so I can follow along. Aut...

    $65 Average bid
    $65 (평균 입찰가)
    75 건의 입찰
    AI Agent Infrastructure Build
    5 일 left
    인증 완료

    I’m rolling out a full-funnel campaign that will be driven almost entirely by autonomous AI. To make that possible, I need a partner who can both execute the campaign itself and architect the underlying agentic infrastructure that powers it. Here’s the scope in plain terms: • Build, configure, and orchestrate a network of Super Agents and Specialized Agents that can collaborate seamlessly. • Design the toolkit they rely on—prompt libraries, action chains, API connectors, memory stores, and monitoring dashboards. • Stand up the infrastructure (think LangChain, AutoGPT-style frameworks, vector databases, robust communication layers) so that new agents can be spun up, managed, and retired with minimal friction. • Once the framework is live, run th...

    $483 Average bid
    $483 (평균 입찰가)
    167 건의 입찰

    I already have a partially-built web app running on React for the front end, for the API layer, and Firebase for authentication, data, and hosting. The skeleton is there, but many screens are still placeholders and several workflows are unfinished. I’m looking for a developer who can take this codebase, finish every remaining module, tighten the architecture, and deliver a production-ready release. Here’s the kind of help I need: • Audit the current repository, then map out what’s missing. • Finish all remaining UI screens and the matching Express endpoints. • Connect each screen to Firebase services—Auth, Firestore, Storage, Cloud Functions, and if useful, Messaging for real-time updates. • Set up clean error handling, secure Firestore...

    $538 Average bid
    $538 (평균 입찰가)
    103 건의 입찰

    Title: SurveyJS Form, Configurable Rules Engine & Compliance Dashboard – Pilot Project v2 *** Please completely read the description as it has been updated Project Description I’m looking for an experienced developer to help digitize and automate a complex compliance/reporting form based on reporting guidance. The goal is to replace manually reviewed forms and manual Excel summaries with a SurveyJS‑based solution, a configurable rules engine, and a reporting/dashboard layer. The work will start with a small paid pilot task so you can demonstrate your ability before we expand to the full project. What I need The final solution should: - Build the full questionnaire in SurveyJS (JSON) based on an existing annotated PDF form and instructions. - Implement completeness and ...

    $128 Average bid
    $128 (평균 입찰가)
    148 건의 입찰

    We are looking for an experienced developer to build a functional prototype of an automated quotation system for a moving service business. The goal is to evaluate the developer’s technical ability, design quality, and understanding of the workflow before proceeding with the full-scale system development. The technology stack is flexible. We are open to using whichever programming language or framework is most suitable for the developer, as the main focus is the final user experience, design quality, and functionality. This initial project represents only a small portion of the complete future system. If the prototype meets expectations, there will be opportunities for continued development and expansion. Prototype Features Required: Step 1: Customer Contact Form Create a custom...

    $469 Average bid
    $469 (평균 입찰가)
    149 건의 입찰
    Intégration API Stock Site
    5 일 left
    인증 완료

    Je souhaite connecter sur mon site l’API privée de mon client afin que mes visiteurs voient, en temps réel, les niveaux de stock disponibles pour chaque produit. Voici le cadre : • Type d’API : service de données tierces, fourni directement par mon client. • Objectif : afficher clairement les informations de stock aux clients (quantité restante, indisponibilité, délais de réapprovisionnement). Ce dont j’ai besoin : 1. Installer la clé et les identifiants d’accès sécurisés sur mon hébergement. 2. Développer les appels API (GET principalement) et gérer les réponses JSON ou XML. 3. Mettre en cache intelligent pour éviter de dép...

    $180 Average bid
    $180 (평균 입찰가)
    108 건의 입찰

    I need a seamless, real-time bridge between our Shopify storefront and our in-house ERP, ACME. Whenever new inventory lands in the warehouse, a sale reduces available quantity, or a manual adjustment/return is logged in ACME, the exact stock level must instantly reflect on every Shopify product page without delay. Your job is to design, build, and deploy this two-way integration. My team can expose or consume REST/GraphQL endpoints on the ACME side, and I can generate API credentials in Shopify. Webhooks, polling safeguards, or a lightweight middleware layer are all acceptable—as long as every trigger above updates Shopify in real time and survives high-volume traffic. Deliverables • Production-ready integration code (language/tool of your choice) • Deployment or setu...

    $277 Average bid
    $277 (평균 입찰가)
    71 건의 입찰

    I already have a Windows-based .exe that simply wraps a Spring Boot jar; that jar contains virtually all of the middleware logic connecting my local system with an external service. What I need now is a developer who can transform that single-file setup into a fully-fledged, scalable server running in the cloud. Point to me note - i want that spring boot server working as it is same no chnages only chances main sevrer inside it and make sure jar works with that server same to same as they work with orignal ones You’ll receive: • the original Spring Boot jar (inside the exe) • my full assistance and domain knowledge whenever you need it Scope 1. Unpack or otherwise extract the jar so the project can be built, tested and version-controlled normally. 2. Refactor or re...

    $84 Average bid
    $84 (평균 입찰가)
    21 건의 입찰

    Founding Engineering Team Needed for Production-Grade Food Delivery Platform Project Overview I'm looking to assemble a small, highly skilled engineering team to build a production-ready food delivery platform from the ground up. This is a long-term project, not a simple prototype. The goal is to create a scalable application that can grow into a commercial product. Important: The technology stack has not been finalized yet. One of the first phases of the project will be collaborating on architecture and selecting the most suitable technologies based on scalability, maintainability, performance, and long-term goals. I'm looking for professionals who can contribute to both implementation and technical decision-making. Roles Required Mobile Application Developer(s) Responsi...

    $1178 Average bid
    $1178 (평균 입찰가)
    137 건의 입찰

    **Project Title:** Betting Platform Development (Similar to Word777) **Project Description:** I am looking for an experienced full-stack developer or development team to build a betting platform similar in functionality and user experience to an existing betting website (reference will be shared privately). **Project Requirements:** * Modern, responsive UI for desktop and mobile. * Secure user registration and login system. * User wallet with deposit and withdrawal management. * Betting functionality with real-time odds and live updates. * Admin panel to manage users, transactions, betting markets, and reports. * User dashboard with betting history, transaction history, and account management. * Secure payment gateway integration (as per supported regions). * Notifications and activity...

    $272 / hr Average bid
    $272 / hr (평균 입찰가)
    18 건의 입찰

    I already have an AWS Health Imaging (AHI) datastore up and populated with DICOM studies. What’s missing is a clean, browser-based way to view those images. I want an OHIF viewer instance—hosted in my AWS account—that pulls directly from AHI and streams the images with no loss of performance or security. Key objectives • Deploy or configure OHIF (latest stable) inside AWS—an S3 + CloudFront static site or an EC2/Docker setup is fine as long as it scales and stays cost-effective. • Wire the viewer to AHI using the official APIs so that studies, series, and instances load seamlessly. No intermediary PACS; the images must come straight from the AHI datastore. • Handle IAM roles, tokens, and signed URL logic so access remains private yet friction-f...

    $28 Average bid
    $28 (평균 입찰가)
    22 건의 입찰

    Senior Kong API Gateway / AI Platform Security Architect (Contract) Overview: Seeking a hands-on Senior Kong API Gateway and Cloud Security Architect to help evaluate, design, and implement secure gateway solutions supporting both enterprise APIs and emerging AI/LLM platforms. This role partners with platform, cloud, and security teams to embed governance, security controls, and architectural best practices into modern gateway deployments. Strong API gateway experience is the priority; AI experience is a plus. Responsibilities: * Design and implement enterprise API and AI gateway architectures. * Collaborate with platform, cloud, and security teams to define secure, scalable solutions. * Establish security guardrails, governance, and architectural standards. * Provide guidance for AI/LLM...

    $10 / hr Average bid
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    75 건의 입찰
    Kirana App & Web Suite
    5 일 left
    인증 완료

    I want to take my neighbourhood kirana store fully digital with a two-part solution: a customer-facing Android app and a browser-based back office, both controlled through tiered roles (admin and super-admin). Android app Customers must be able to browse the entire catalogue through a fast product listing and search module, place and manage their orders inside the app, then leave customer reviews once an order is delivered. The flow should feel as smooth as any modern e-commerce experience. Web application Internally, the web portal will let us update stock in real time, handle individual customer accounts with their complete order history, and review sales analytics to spot trends and slow-moving items. Admin & super-admin roles Store admins need dashboards for user managemen...

    $330 Average bid
    $330 (평균 입찰가)
    117 건의 입찰
    Claude Workflow Automation Setup
    5 일 left
    인증 완료

    I need Claude configured for a business-grade workflow automation stack. The goal is to let the model take over three routine areas: • Scheduling & reminders – Claude should watch a shared Google Workspace calendar, propose meeting times, and nudge attendees by email or Slack when action is needed. • Data entry & reporting – incoming form submissions and CSV uploads must be parsed, cleaned, and pushed into our PostgreSQL database, with weekly summary reports drafted in Google Docs. • Email & communication processes – routine enquiries should trigger Claude to draft context-aware replies, tag conversations in our CRM, and escalate anything outside predefined rules. I already have API access to Anthropic, Google Workspace, Zapier and our...

    $20 / hr Average bid
    $20 / hr (평균 입찰가)
    169 건의 입찰

    I have my website like blinkit but problem is when customer open website customer location should auto dictate without google map api and need to build deliver app also like blinkit. My website is :-

    $116 Average bid
    $116 (평균 입찰가)
    32 건의 입찰

    I have a fully-working Android application that currently runs only in offline mode. I now need it moved online so users can access live data through a dedicated server. No new features or UI changes are required—the goal is a straight deployment that preserves all existing functionality. You will handle everything from configuring the server environment, setting up any required APIs or databases, to packaging and releasing an online-ready APK. Once complete, the app should connect seamlessly to the server, sync data in real time, and perform exactly as it does offline. Please outline the approach you would take, the tools you’ll use (Android Studio, backend framework, hosting stack, etc.), and an estimated turnaround time. Successful delivery is the live server running and t...

    $85 Average bid
    $85 (평균 입찰가)
    38 건의 입찰

    Preciso de um aplicativo de entrega de gás que cubra todo o fluxo de compra, do cadastro ao recebimento do botijão na porta do cliente. O escopo inclui: • Cadastro e login de usuários – autenticação simples e segura. • Sistema de pedidos – seleção de produtos, carrinho e confirmação. • Pagamento integrado via Pix, com retorno de status automático. • Rastreamento em tempo real do pedido no mapa, exibindo posição do entregador. • Painel administrativo na web para gerenciar produtos, preços, estoque, pedidos e entregadores. Entrego o design básico e a lógica de negócio; espero que você desenvolva o app (Android + iOS) e o painel a...

    $19 / hr Average bid
    $19 / hr (평균 입찰가)
    69 건의 입찰

    Title: SurveyJS Form, Configurable Rules Engine & Compliance Dashboard – Pilot Project Project Description I’m looking for an experienced developer to help digitize and automate a complex compliance/reporting form based on reporting guidance. The goal is to replace manually reviewed forms and manual Excel summaries with a SurveyJS‑based solution, a configurable rules engine, and a reporting/dashboard layer. The work will start with a small paid pilot task so you can demonstrate your ability before we expand to the full project. What I need The final solution should: - Build the full questionnaire in SurveyJS (JSON) based on an existing annotated PDF form and instructions. - Implement completeness and consistency rules (required fields, conditional questions, required upl...

    $130 Average bid
    $130 (평균 입찰가)
    117 건의 입찰
    $106 (평균 입찰가)
    65 건의 입찰

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