Backend Development Jobs

Backend Development is a critical part of any website or software product. It starts with understanding the client's goals and developing solutions that achieve those goals in a cost-effective and scalable way. Backend developers are responsible for more than just code: they have to have a strong understanding of databases, frameworks, and development in general. A backend developer uses this knowledge to turn complicated customer requirements into a efficient, automated solutions that the user experience (UX) team can work with.

When it comes to Backend Development, experience matters - you want someone who's seen a variety of projects and knows the best technology to use for your specific scenario.

Here's some projects that our expert Backend Developer made real:

  • Developing connected systems between websites and local servers
  • Integrating software systems using modern real-time protocols
  • Building bespoke solutions tailored to customer requirements
  • Taking over existing projects and resolving tricky bugs
  • Developing custom solutions using tried and tested frameworks

Backend Development encompasses a wide variety of skills and technologies, so it helps to have an experienced developer on your team who can navigate the complexities of building high-quality solutions. Our expert developers have already undertaken a variety of different projects and can jump into yours with confidence - benefit from their expertise, get your project completed quickly and correctly, and reduce time-to-market for your product. Get in touch today to discuss bringing your project to life, or post your own project in Freelancer.com to hire an experienced Backend Developer.

从156,150个评价中,客户给我们的 Backend Developers 打了4.9,共5星。
雇佣 Backend Developers

Backend Development is a critical part of any website or software product. It starts with understanding the client's goals and developing solutions that achieve those goals in a cost-effective and scalable way. Backend developers are responsible for more than just code: they have to have a strong understanding of databases, frameworks, and development in general. A backend developer uses this knowledge to turn complicated customer requirements into a efficient, automated solutions that the user experience (UX) team can work with.

When it comes to Backend Development, experience matters - you want someone who's seen a variety of projects and knows the best technology to use for your specific scenario.

Here's some projects that our expert Backend Developer made real:

  • Developing connected systems between websites and local servers
  • Integrating software systems using modern real-time protocols
  • Building bespoke solutions tailored to customer requirements
  • Taking over existing projects and resolving tricky bugs
  • Developing custom solutions using tried and tested frameworks

Backend Development encompasses a wide variety of skills and technologies, so it helps to have an experienced developer on your team who can navigate the complexities of building high-quality solutions. Our expert developers have already undertaken a variety of different projects and can jump into yours with confidence - benefit from their expertise, get your project completed quickly and correctly, and reduce time-to-market for your product. Get in touch today to discuss bringing your project to life, or post your own project in Freelancer.com to hire an experienced Backend Developer.

从156,150个评价中,客户给我们的 Backend Developers 打了4.9,共5星。
雇佣 Backend Developers

筛选

我最近的搜索
筛选项:
预算
类型
技能
语言
    工作状态
    108 找到工作

    I’m creating a mobile application whose sole purpose is to give women a reliable, instant way to call for help and share their location when they feel unsafe. The app should launch quickly, work on both Android and iOS, and remain functional even on low-bandwidth connections. Core scope Please build a production-ready app, complete with backend services, user authentication, secure data storage, and a lightweight admin panel for monitoring incidents. The emphasis is on rapid emergency response, so speed, stability, and privacy are critical. Key features to implement • Real-time location tracking that updates continuously until the user cancels the alert. • One-tap SOS button placed prominently on every screen. • Automatic emergency contact alerts (SMS / push)...

    $2109 Average bid
    $2109 平均报价
    51 个竞标

    iam looking for a developer who can finish project in 7days dead line, we have already create but we need to update the admin pannel, user app ,vendor app, delivery boy app , budget 15OOO INR TIME LINE : 7DAYS PAYMENT WILL BE PAID ONCE TOTAL PROJECT COMPLETED ONLY

    $737 Average bid
    $737 平均报价
    44 个竞标

    Estou desenvolvendo um novo smartphone e preciso de um site que concentre os testes de desempenho do protótipo. Nesta fase inicial quero focar exclusivamente em testes de desempenho, cobrindo: • Velocidade do processador • Desempenho gráfico Todos os resultados deverão ser apresentados em gráficos interativos, gerados automaticamente a partir dos dados de benchmark que minha equipe fornecerá (arquivo CSV ou endpoint simples). O que espero do projeto: 1. Front-end responsivo com dashboards que carreguem rápido, podendo usar React, Vue ou tecnologia equivalente. 2. Back-end leve que aceite a importação ou atualização dos dados de teste e alimente os gráficos em tempo real. 3. Código limp...

    $972 Average bid
    $972 平均报价
    45 个竞标

    My Node-based site is already live and stable; what I now need is solid instrumentation so every visitor action feeds into my growth stack and Meta ad reporting. The job is straightforward: wire up Google Analytics, HubSpot, Hotjar, Microsoft Clarity, and the Meta Pixel, then verify that each of them is collecting both user-behavior and conversion data correctly. You will work directly in the existing codebase (Express/Node) and any front-end framework hooks that might be required. Once installed, I expect clean event schemas, no tag duplication, load-order conflicts, or performance hits. Deliverables • All five tools embedded and firing on all pages • Custom events set for key conversions (form submits, purchases, etc.) and mirrored in Meta Events Manager • Dashboar...

    $972 Average bid
    $972 平均报价
    105 个竞标

    NECRYPTOVIE (NCV) — Complete 4-Phase Blockchain, AI, Marketplace and IoT Ecosystem NEVIE-GLOBAL is seeking a senior blockchain agency or an experienced multidisciplinary technology team to design, develop, deploy and deliver the complete four-phase MVP of the NECRYPTOVIE (NCV) ecosystem as a turnkey project. We want to be fully transparent from the beginning: this is not simply an ERC-20 token development project. NCV is a complete ecosystem combining blockchain, artificial intelligence, automation, SaaS services, digital and physical products, connected devices, IoT, robotics, B2B services and international expansion. Budget Target fixed budget: USD 2,800 for the complete four-phase MVP. The proposal must cover all four phases and include: one total fixed price for the complet...

    $17143 Average bid
    $17143 平均报价
    70 个竞标

    I am building a FlutterFlow-based mobile app and need a developer who is comfortable working mainly on the server side. Your first task will be to design and provision a solid MySQL database, map out a clear schema and set up all tables, indexes, and relationships so the app can scale without performance issues. Once the data layer is ready, I’ll rely on you to wire it to FlutterFlow through clean, well-documented APIs. The project involves three distinct integration paths: • Third-party services that supply user-generated content • A small set of internal REST endpoints we already use on the web version • A payment gateway to handle one-time and recurring purchases All endpoints must return JSON, follow REST conventions, and include basic rate limiting and...

    $588 Average bid
    $588 平均报价
    49 个竞标

    I need a complete e-commerce website that lets me sell both physical products and bookable services from the same storefront. The project covers everything from polished UI/UX design through to a ready-to-launch build, so I can start taking real payments on day one. The site should feel modern, run smoothly on desktop and mobile, and guide shoppers quickly from browsing to checkout. A straightforward product catalogue, service listings with clear descriptions, a secure shopping cart, and seamless payment-gateway integration are must-haves. I’ll also need an easy-to-use admin area where I can add new inventory, adjust pricing, manage orders, and view sales reports without touching code. I’m happy to collaborate on branding choices such as colour palette, typography, and imager...

    $219 Average bid
    $219 平均报价
    37 个竞标

    # Technical Specification: KYA (Know Your Agent) Cryptographic Middleware ## Objective We require a mid-to-senior backend developer to construct a secure "Know Your Agent" (KYA) verification middleware layer. The goal is to ensure our autonomous AI agents can execute API actions only after verifying their identity cryptographically against an anchored decentralized web3 domain (.u / .wif). ## Core Deliverables 1. **Verification Middleware:** Intercept incoming agent requests. Parse custom routing headers: `X-Agent-Domain` and `X-Agent-Signature`. 2. **Domain Resolution Adapter:** Integrate with Web3/DNS libraries to resolve the public key assigned to the agent's domain identity records. 3. **Cryptographic Validation:** Implement Ed25519 signature validation verifying the r...

    $5534 Average bid
    $5534 平均报价
    116 个竞标

    A new product is ready to move from concept to a usable, production-ready system. The scope covers everything from designing a clean, responsive front-end to building secure, scalable back-end services, wiring up the database layer, and pushing the finished solution to a cloud host (AWS, Azure, or similar). I have wireframes and a feature list; what I need now is a full-stack engineer who can turn those assets into a dependable minimum viable product, advise on the most suitable tech stack, and set up a straightforward CI/CD pipeline so future iterations roll out smoothly. Key expectations • Translate existing wireframes into a polished UI (desktop and mobile). • Build and document REST or GraphQL APIs that the front-end will consume. • Design the database schema...

    $17794 Average bid
    $17794 平均报价
    79 个竞标

    Looking for a developer to come work with us on an hourly rate for different projects. You must be able to design clean website architecture. We have projects ranging from simple changes to design for startups

    $55 / hr Average bid
    $55 / hr 平均报价
    212 个竞标

    I’m ready to move from concept to a working Flutter application that delivers real-time chatting on both iOS and Android. The core features I need you to wire up are: • Real-time text messaging with reliable message delivery • Voice messaging that records, uploads, and plays back smoothly • Social-media-based authentication (Google, Facebook, or similar—feel free to recommend the most straightforward SDK) Because the app must feel identical on iOS and Android, every screen, transition, and permission flow should be implemented once in Flutter and tested on both platforms. I’m open to whichever real-time backend you are most comfortable with—Firebase, Supabase, or a custom WebSocket server—so long as it scales and keeps latency low. Delive...

    $5205 Average bid
    $5205 平均报价
    84 个竞标

    Project Title Enterprise SaaS Architect & Development Team Required for Asset Governance Platform Project Description This is a long-term enterprise software project. We are looking for an experienced software architect or development company with a proven track record in delivering enterprise SaaS solutions for government, industrial, infrastructure, or utility organizations. We are seeking an experienced software architect or enterprise software development company to develop a scalable Enterprise Asset Governance Platform for government entities, utilities, infrastructure operators, and industrial organizations. The platform will initially be developed as a web-based enterprise application, with a roadmap for future mobile applications. Core Functional Requirements Asset registrat...

    $36340 Average bid
    $36340 平均报价
    106 个竞标

    I’m building a mobile application for both iOS and Android that combines real-time text chat, crystal-clear audio calls, and HD video calls—similar to WhatsApp, but on a paid model. Users will register, choose a plan, and pay through Stripe. The same payment system will also let me transfer earnings to internal staff accounts. The project covers everything from UI design and backend setup to final store submissions. I’ll provide brand assets and rough wireframes; you’ll translate them into a polished, production-ready experience with end-to-end encryption, contact syncing, push notifications, and a lightweight admin portal for user, plan, and payout management. Core deliverables • Native (or cross-platform) iOS & Android apps ready for App Store and Googl...

    $2461 Average bid
    $2461 平均报价
    192 个竞标

    **Project Title:** Build a Proxy Reseller Website with Proxy-Seller API Integration **Please do NOT apply if you are not experienced with API integration.** API is the core requirement of this project. If you cannot complete the API integration professionally, please do not waste your time or mine. I am an official partner of ** (Proxy-Seller)** and I need an experienced developer to build a proxy reseller website. The website will use the **Proxy-Seller API**, allowing my users to purchase and manage proxies directly from my website. **API integration is the most important part of this project**, so you **must have strong experience with REST API integration**. **API Documentation:** **Requirements:** * Full integration with the Proxy-Seller API. * Clean, responsive, and user-...

    $941 Average bid
    $941 平均报价
    81 个竞标

    We are looking for skilled and reliable developers (individual or small team) to build a new cross-platform mobile application from the ground up. Key technical requirements: Strong experience with Flutter for high-quality iOS and Android development Solid backend development skills in Python (FastAPI or similar frameworks preferred) Experience implementing voice features (speech-to-text and text-to-speech integrations) Knowledge of AI/LLM integrations and working with external APIs Understanding of mobile architecture, state management, authentication, data synchronization, and offline capabilities Clean code, good documentation, and attention to performance & security The project will be developed in clear phases, starting with the core MVP. We are looking for developers who can de...

    $219 / hr Average bid
    $219 / hr 平均报价
    158 个竞标

    I am ready to overhaul the way my business runs by building a single, tightly-integrated environment that covers everything from back-office workflows to online sales. My first milestone is a robust Backend Management (ERP) system. It must handle inventory in real time, tie every product movement to accurate financial accounting, and give me a clear picture of each customer through a built-in CRM. Staff management—including clock-in/clock-out attendance—needs to live in the same dashboard so HR data flows straight into payroll and reporting without manual imports. Once the ERP core is stable, the next layer is an in-store POS that reads and writes to the same database. A sale at the counter should instantly update stock levels, customer history, and daily financials inside ...

    $15850 Average bid
    $15850 平均报价
    69 个竞标

    I’m starting with a blank slate and need a skilled developer who can take me from concept to launch. The core idea is to create a modern, responsive website, but I’m still deciding on both the platform and the specific feature set. I’d value your guidance on whether WordPress, Shopify, or a fully custom HTML/CSS/JS build suits my goals best, and I’m equally open to suggestions about functionality such as user accounts, online payments, or a straightforward content-management workflow. Here’s what I need from you: • A short discovery session to confirm objectives, audience, and must-have features. • Practical platform recommendations and rationale. • Wireframes or mock-ups for approval. • Full front-end and back-end development, mobi...

    $15207 Average bid
    $15207 平均报价
    68 个竞标

    لدي منظومة تعمل بالفعل وأحتاج إلى مطوّر برمجيات خلفية محترف يركّز حصرياً على تحسين الأداء فيها، وبالتحديد رفع درجة تحمّلها عندما تتعرّض لأحمال مرتفعة. الهدف هو أن يستمر النظام بالاستجابة بثبات وسرعة حتى عند الذروة. سأزوّدك بكل ما يلزم من شفرة حالية، سجلّات، وبيانات الاختبار. المطلوب منك تحليل عنق الزجاجة، تنفيذ التعديلات اللازمة — سواء كانت إعادة كتابة أجزاء من الكود، تحسين الاستعلامات، أو إدخال حلول تخزين مؤقت وتوزيع الأحمال — ثم توثيق النتائج بالأرقام. قبولي للتسليم يعتمد على: • تقرير قياس أداء قبل/بعد يتضمّن أوامر الاختبار والأدوات المستخدمة • كود مُحسَّن ومعلَّق بوضوح • إرشادات نشر سريعة تمكّنني من تفعيل التغييرات على بيئة الإنتاج إن كنت متمرساً في ضبط الأداء، أدوات القياس، واختبار الضغط، فسيسعدني العمل معك.

    $423 / hr Average bid
    $423 / hr 平均报价
    23 个竞标

    About the project I'm building a B2B platform for wig makers and hair professionals to manage custom service bookings — think Acuity or Calendly, but purpose-built for services that need detailed specs, not just a time slot. Product name to be shared directly with the developer I move forward with. The platform has two connected parts: 1. Client-facing booking widget A multi-step form embedded on a wig maker's own website (Shopify, Squarespace, etc.) where their customers book services, select add-ons, and submit detailed specifications plus reference images. I already have a working HTML version of this built (7-step form with dynamic pricing, EmailJS integration) — it needs to be made fully embeddable anywhere and connected to a proper backend. 2. Provider dashb...

    $141 / hr Average bid
    $141 / hr 平均报价
    231 个竞标
    Window Estimate Dropdown App
    5 天 left
    已验证

    I need a small program that lets me build clear, professional cost estimates for my window-replacement customers. The flow I have in mind is simple: I open the app, choose a window style from a dropdown that shows thumbnail images, enter the size and quantity etc. Window styles should not be limited to only single-hung, double-hung, or casement; I want the structure flexible so I can upload or swap in any window image/category in the future without code changes. A clean, modern interface is important because I’ll be sharing my screen with homeowners while we talk to use platform Core deliverables • A working desktop or browser-based application (whichever you’re strongest at) • Dropdown gallery of window images with easy add/replace functionality • Real-t...

    $831 Average bid
    $831 平均报价
    213 个竞标

    Saya ingin membangun sebuah aplikasi web yang berfungsi sebagai sistem manajemen konten (CMS). Fokus utamanya adalah memudahkan saya — dan nantinya tim saya — dalam membuat, mengedit, serta mempublikasikan konten tanpa harus menyentuh kode secara langsung. Lingkup kerja: • Rancang dan kembangkan antarmuka berbasis web yang responsif. • Sediakan fitur dasar CMS: pembuatan artikel, pengelompokan kategori, pengunggahan gambar/file, dan opsi draft–publish. • Sertakan login dengan peran (admin, editor, viewer) agar kontrol akses jelas. • Gunakan stack modern yang stabil (contoh: React atau Vue di front-end, Node.js, Laravel, atau setara di back-end; database bebas asal populer). • Dokumentasikan cara instalasi dan penggunaan singkat agar saya ...

    $133 / hr Average bid
    $133 / hr 平均报价
    75 个竞标
    Urgent Node.js Web App Build
    5 天 left
    已验证

    I’m looking for a skilled Node.js developer who can start right away and take full ownership of building a production-ready web application. The core goal is clear: deliver a solid, scalable Node.js backend that serves a modern web interface. Here’s what I need from you: • Set up the project structure (preferably Express or a comparable lightweight framework) with clean, well-commented code. • Advise on and integrate the most suitable database layer. • Establish routing, middleware, and any environment configuration required for a smooth deployment flow (dev, staging, production). • Collaborate with me to refine any missing feature details and map them into a clear sprint plan so that we keep velocity high. I can share the domain concept and user flo...

    $114 Average bid
    $114 平均报价
    58 个竞标

    I want to launch a fully-featured online poker platform that players can access directly or that operators can bolt onto an existing casino / sportsbook via a clean, well-documented API. The core games are Texas Hold'em and Omaha, both running on a provably fair RNG with real-time hand history and rake tracking. Players should be able to register, log in and start a table or join an existing one, then deposit through Credit or Debit Card and the most popular cryptocurrencies (BTC, ETH, USDT). A cashier module with KYC hooks, risk limits and automated withdrawals is required so the site can run at the lowest possible operational fee. The user interface must follow a completely custom design. I will provide brand guidelines; everything from lobby to table animations should match that ...

    $298 Average bid
    $298 平均报价
    68 个竞标

    Hi i am looking for lead generation saas app from different sources. You must have knowledge cold traffic lead generation. Need proper devloper both front end and backend. We will talk our to get lead, once you apply the job. --Please don't bid with ai description, just use your own language--- ai bid will be rejected Only you must devlop anyting as per requirements. if you have cold lead genration idea then bid with your thought. Thank You

    $1199 Average bid
    $1199 平均报价
    62 个竞标

    Looking for a collaborator who is full stack engineer on EU Salary is negotiable.

    $3535 Average bid
    $3535 平均报价
    122 个竞标
    App: Business Scan
    5 天 left
    已验证

    Cuento con un método propio para escanear la efectividad digital de negocios B2C —restaurantes, clínicas dentales, veterinarias, tiendas de decoración y similares— y quiero convertirlo en una app totalmente en español. El objetivo es que el usuario introduzca los datos clave de su negocio y, en cuestión de segundos, reciba un diagnóstico práctico: qué mejorar primero para atraer más clientes y cuánto impacto económico puede esperar de cada acción. Los puntos que necesito analizar dentro de la aplicación son tres: • Presencia en redes sociales (actividad, coherencia de marca, engagement). • Reseñas de clientes en plataformas públicas y su tendencia. • P&a...

    $1246 Average bid
    $1246 平均报价
    104 个竞标

    New Freelancer Needed from Pakistan Or INDIA at LOW Budget with Parctical Experience

    $39 / hr Average bid
    $39 / hr 平均报价
    42 个竞标

    मैं टाइगरकैब्स नाम से एक राइड-हेलिंग स्टार्ट-अप तैयार कर रहा हूँ और अब मोबाइल ऐप विकसित करवाना चाहता हूँ। ऐप दोनों प्लैटफ़ॉर्म—iOS और Android—पर चलनी चाहिए। मुख्य फ़ीचर्स जिन पर ज़ोर दूँगा: • रियल-टाइम ट्रैकिंग ताकि यूज़र ड्राइवर की लाइव लोकेशन देख सकें। • इन-ऐप पेमेंट, ​रीचार्ज व रियल ट्रांज़ैक्शन सपोर्ट, जिससे किराया सीधे ऐप में निपट जाए। • यूज़र रिव्यू और रेटिंग्स ताकि सेवा की गुणवत्ता पारदर्शी रहे। मेरे पास पहले से 1,000+ वेरिफ़ाइड ड्राइवर हैं; सेफ़्टी सबसे बड़ा यूएसपी है, इसलिए ड्राइवर-बैकग्राउंड चेक इंटीग्रेशन भी शामिल करें। किराये कॉम्पिटिटर से कम रखूँगा, तो बेहतर प्राइस-कैलकुलेशन एल्गोरिथ्म दरकार है। 24/7 कस्टमर-सपोर्ट मॉड्यूल भी चाहिए। डिलीवरेबल्स में अपेक्षित हैं: 1. पूर्ण-फंक्शनल iOS व Android ऐप का स्टेबल बिल्ड 2. ड्राइवर व राइडर, द...

    $1340 Average bid
    $1340 平均报价
    16 个竞标

    Saya membutuhkan sebuah layanan SMS yang memungkinkan pelanggan membeli pulsa semua operator dan membayarnya langsung melalui DANA. Fitur utama yang harus ada: • Pilihan paket pulsa yang mudah ditelusuri beserta daftar harga terkini. • Histori pembelian tersimpan per nomor ponsel. • Notifikasi SMS otomatis saat transaksi berhasil. Lingkup pekerjaan: 1. Bangun backend yang menerima pesan SMS, mengonfirmasi paket, memproses pembayaran DANA (melalui API/QRIS), lalu meneruskan order ke provider pulsa. 2. Rancang skema database sederhana untuk pengguna, transaksi, dan harga. 3. Kembangkan pesan SMS dua arah: konfirmasi pilihan & instruksi bayar, lalu status sukses atau gagal. 4. Sediakan panel admin web ringan untuk memperbarui harga dan meninjau histori. ...

    $55 / hr Average bid
    $55 / hr 平均报价
    33 个竞标

    # Custom E-Commerce Website Development (Nutrition & Supplement Store) ## Project Overview Developed a modern, responsive, and high-performance e-commerce website for a nutrition and supplement brand. The website is designed to provide a seamless shopping experience while maintaining a premium brand identity. **Live Website:** ## Technologies Used * React.js * JavaScript (ES6+) * HTML5 * CSS3 * Bootstrap / Responsive Design * REST APIs * Node.js * * MongoDB * Payment Gateway Integration ## Features Implemented * Modern and responsive UI for desktop, tablet, and mobile. * Product listing with categories and filtering. * Product detail pages with images and descriptions. * Shopping cart functionality. * Secure checkout process. * User registration and login. * Order management s...

    $4343 Average bid
    $4343 平均报价
    106 个竞标

    I’m building the first version of our startup’s product and want to work with motivated college students or recent grads who can grow alongside the project. The goal is to release one code-base that runs smoothly on both iOS/Android and the web, so any exposure to React Native, Flutter, Ionic, or similar cross-platform stacks will be useful—but if you only have classroom-level experience and a willingness to learn fast, that’s fine too. Here’s how we’ll collaborate: • We meet online twice a week, agree on the next sprint’s features, and track progress in GitHub. • You push well-commented code, I review and merge, and you’re paid at the end of each productive week—no waiting for the final launch. • As milestones are clear...

    $2179 Average bid
    $2179 平均报价
    84 个竞标

    My Node-based site is already live and stable; what I now need is solid instrumentation so every visitor action feeds into my growth stack and Meta ad reporting. The job is straightforward: wire up Google Analytics, HubSpot, Hotjar, Microsoft Clarity, and the Meta Pixel, then verify that each of them is collecting both user-behavior and conversion data correctly. You will work directly in the existing codebase (Express/Node) and any front-end framework hooks that might be required. Once installed, I expect clean event schemas, no tag duplication, load-order conflicts, or performance hits. Deliverables • All five tools embedded and firing on all pages • Custom events set for key conversions (form submits, purchases, etc.) and mirrored in Meta Events Manager • Dashboar...

    $376 Average bid
    $376 平均报价
    23 个竞标
    SwipeSmart
    4 天 left
    已验证

    SwipeSmart is a consumer mobile application being developed for iOS and Android. The app is designed to help users make smarter payment decisions by reviewing their available payment products, rewards, benefits, offers, and personal preferences, then providing a clear recommendation before a purchase. The project includes completing the mobile app, backend system, database, administrative dashboard, secure user accounts, subscription features, QR-code access, and final publication on the Apple App Store and Google Play. The system should also be built with the ability to support future national and international expansion. We already have the main project blueprints, feature requirements, design concepts, business rules, and supporting attachments prepared. These materials will be provid...

    $19503 Average bid
    $19503 平均报价
    126 个竞标

    I have an idea for an automotive application that I would like to develop. The main problem is that when customers visit a repair workshop, the mechanic can usually diagnose the fault and estimate the labor cost. However, to know the price and availability of the required spare parts, the mechanic often has to contact or visit several spare parts stores. This wastes time for both the workshop and the customer. My application would solve this problem. How it works * The customer creates a simple profile (name, phone number, car model, and VIN/chassis number). * The customer or the mechanic enters the required spare part, adds a description, and can also upload a photo of the part if available. * The request is instantly sent to all spare parts suppliers registered on the platform. * Eac...

    $2485 Average bid
    $2485 平均报价
    143 个竞标

    I'm seeking a talented developer to create a modern exchange economy app and website for both iOS and Android platforms. The core features should include: - User Profile Management: Users can create and manage their profiles. - Item Listing and Search: Users can list items and search for items. - Messaging System: A built-in messaging system for users to communicate. -Trade match engine and agreements created automatically -local discovery and Safety parameters set Ideal skills and experience: - Experience in developing cross-platform mobile apps and responsive websites. - Strong UI/UX design skills with a focus on modern and minimalistic aesthetics. - Proficiency in backend development to support user profiles, item listings, and messaging functionalities. - Familiarity with app st...

    $3582 Average bid
    $3582 平均报价
    202 个竞标

    Job Title: WooCommerce Admin Navigation Customization (Custom Statuses & Colour Coding) 1. Project Overview We need an experienced developer to customize the order management dashboard in WooCommerce. Currently, our order status navigation row is cluttered. We want to clean up the UI by displaying only a specific subset of order statuses in a precise sequence, completely reorganized using a color-coded text/button system to improve our team's operational workflow. ________________________________________ 2. Scope of Work Reorganize and Display Specific Statuses Only • Modify the WooCommerce admin orders table top navigation row (subsubsub class). • Display only the 8 core statuses listed below in this exact sequential order. • Hide all other existing, native, or plu...

    $1489 Average bid
    $1489 平均报价
    252 个竞标

    I’m launching a new escort-service platform and need a developer to create a clean, responsive website whose single most important feature is a real-time booking and appointment system. How I picture the flow • Escorts sign up, complete a profile, set their availability on an interactive calendar, and update it whenever their schedule changes. • Clients register, browse available escorts, pick a date and time, and send a booking request. • The escort receives the request, accepts or rejects it, and both parties get automatic email (or SMS) confirmations—no online payment processing is required at this stage; the system simply locks the chosen slot. Two user roles only—Clients and Escorts—so the interface and permissions can stay streamline...

    $682 Average bid
    $682 平均报价
    51 个竞标

    I have already designed and built most of C’8 – Coordinate, an open-source aid-coordination platform you can preview here: https://www.c8coordinate.com. The interface is in place; where I need help is on the backend. Your main task will be to implement and refine our internal APIs so the existing frontend can finally talk to the server smoothly. You will be shaping the data flow between the client app and the database layer: creating clean, well-documented endpoints, handling authentication hooks already stub-built, ensuring robust validation, and returning responses the UI expects. I am using a Git-based workflow and will grant access to the repo plus a small set of Postman collections that describe the calls I need. Key deliverables • Fully working internal API endpo...

    $157 / hr Average bid
    $157 / hr 平均报价
    194 个竞标

    Scope of work- Following steps we need to work: 1 – User Management (Super Admin, Admin, End User), Create User, Assign Permission, Edit, delete, Publish, De-active, Sign In, Forget Password, Sign Out. 2 – Create Live Sport Games Using Provider API, Category wise. From (Bet Fair API) Following Game Category: • Cricket • Football • Tennis • Table Tennis • Esoccer • Horse Racing • Greyhound Racing • Basketball • Wrestling • Volleyball • Badminton • Snooker • Darts • Boxing • Mixed Martial Arts • American Football • E Games • Ice Hockey • Futsal • Motor Sports • Kabaddi 2 – Create Casino games Category wise, we need to check from provider, please provide actual li...

    $2524 Average bid
    $2524 平均报价
    30 个竞标

    I build full-scale e-commerce websites in CodeIgniter and I’m ready to take on more work than I can currently attract alone. I’m therefore looking for someone who can reliably bring me new web-development projects—specifically online stores—on a commission basis that we agree on before each job starts. Here’s the simple arrangement: you introduce the client, I handle the scoping, design, coding, launch and support. Once the project is delivered and the client has paid, I transfer the pre-agreed percentage of the contract value to you immediately. Ideal projects are end-to-end store builds, migrations or major feature expansions, but I’m open to shorter tasks if they fall within the e-commerce space and can be built in CodeIgniter. The more complete...

    $1858 Average bid
    $1858 平均报价
    57 个竞标
    BattleHub app
    4 天 left

    I’m ready to bring a new social-networking experience to Android and need a developer who can take it from concept to a polished, downloadable APK. The focus of this first release is simple but critical: real-time one-to-one and group messaging. Users should be able to register quickly, find contacts, and exchange text, images, and short videos with reliable push notifications. I’ll provide the basic wireframes and brand assets. You’ll turn them into a clean Material Design interface, build the back-end (Firebase or another lightweight, scalable solution you’re comfortable with), and hook up the messaging logic with end-to-end encryption. Key deliverables: • Full Android Studio project with readable, well-commented code • Secure user authentication, cl...

    $768 Average bid
    $768 平均报价
    27 个竞标

    My adult-content site (videos and photos) currently relies on Stripe, but I need to retire that gateway and move to a fully manual payment flow that runs on simple bank transfers only. Here’s what I’m after: • Checkout flow: When a user selects a subscription or one-off purchase, they should be shown our bank details and an automatically generated reference code. • Admin side: I need an easy backend screen where I can mark a reference code as “paid”. As soon as I flip that switch the user’s access should activate. • Extras: The system must send an email (or on-site notification) confirming receipt of payment, and it should store a clear transaction history that I can filter by user, date, and status. All existing membership data, user acco...

    $2344 Average bid
    $2344 平均报价
    271 个竞标

    I want a straightforward mobile solution that lets boutique managers handle last-minute call-outs without headaches. The app must launch on both iOS and Android from day one and open straight into a clean flow where a manager can post an open shift, push it live, and then watch the responses roll in. Core experience • Managers create a shift card (date, time, pay, location, notes) and publish it. • Qualified associates receive an instant push notification, tap once to accept or decline, and the first confirmed response locks in the coverage. • Every user has a profile showing basic credentials, past ratings, and preferred boutiques so managers can review at a glance. • A lightweight in-app chat thread opens automatically between manager and confirmed staffer ...

    $1309 Average bid
    $1309 平均报价
    119 个竞标

    Project: Multi-vendor E-commerce Mobile App I'm looking for a developer/team to build a multi-vendor e-commerce mobile app (Android first, similar concept to Shopify/Flipkart but as a single app). Core features (Phase 1) - User login (OTP based), buyer and seller modes - Buyer: browse products by category, search, cart, checkout, multiple payment options (COD, UPI, Card, Net Banking), order tracking, order history, ratings/reviews, wishlist, refer & earn - Seller: registration with basic KYC, product upload (photo/video), order dashboard, earnings dashboard, simple analytics, coupon/discount codes, help center (FAQ/tutorials) - Basic security: encrypted storage for seller's personal/bank details Phase 2 (right after Phase 1) - AI-based product assistant for buyers (chat-ba...

    $7353 Average bid
    $7353 平均报价
    147 个竞标

    https://www.freelancer.com/groups/freelancer-showcase/feed/398810/comments

    $149 / hr Average bid
    $149 / hr 平均报价
    84 个竞标

    Real‑Time Market Replication Platform (API Integration + Matching Engine) We are building a real‑time market replication platform that synchronizes external market data through API integration and manages user balances, exposure, and order execution through a custom matching engine. The platform will include: API data ingestion (real‑time external market feed) Liquidity mirroring (synchronized price ladder and market depth) Matching engine (order execution, partial fills, queue management) Wallet ledger (balances, transactions, exposure tracking) Risk/exposure logic (per‑user and global limits) Admin tools (market controls, user management, reporting) Audit logs (full traceability of operations) We are looking for experienced backend developers or small teams with strong knowledge of: dis...

    $94 / hr Average bid
    $94 / hr 平均报价
    174 个竞标

    Want to make agent for that fulfills all my requirements by giving it the repo and it does the work ( , , Dockerfile , , )

    $1027 Average bid
    $1027 平均报价
    83 个竞标

    I’m building a web-based quiz application designed especially for high school learners and I want it to feel fast, intuitive, and classroom-ready. The platform has to let me post Math, Science, and English quizzes that mix multiple-choice, true/false, and short-answer items in any order I need. Core expectations • A clean student interface where users can sign in (or access as guests if that’s simpler), work through each quiz, see one question per screen, and submit when finished. • A simple admin workspace where I can create, edit, and delete questions, tag them by subject, set correct answers, and review scores. • Automatic grading for multiple-choice and true/false items, with a manual-grade field for short answers. • Basic performance output&m...

    $78 / hr Average bid
    $78 / hr 平均报价
    120 个竞标

    Project Name: Bull Chat Platform: Android APK Estimated Delivery Timeline: 1 Month 1. Project Overview Bull Chat is an Android application where users can purchase recharge plans, receive trading signals with images, and track their earnings. All payments, recharge approvals, and earnings updates will be managed manually by the administrator through the backend. 2. Platform * Android Application (APK) * Admin Web Panel * Backend Database 3. Branding * Green Theme * Bull Logo * Simple and Professional UI 4. User Features Registration & Login * Mobile Number Registration/Login * User Profile * View Recharge History * View Earnings History 5. Recharge Plans The application will provide the following recharge categories: Category Recharge Amount Expected Return A ₹5,000 Up to ₹15,000 ...

    $2076 Average bid
    $2076 平均报价
    59 个竞标

    专为您推荐的文章