Pengembangan Backend Jobs

I'm looking for a freelancer who has extensive expertise in the ONDC Protocol and has already developed and can demonstrate live both a buyer and seller app on ONDC. The buyer app should have: - Product search and filter - Order tracking - Payment integration - ONDC Integration The seller app should include: - Inventory management - Order processing - Product listing - Return to desk Order - Disputes and claims settlements Ideal candidates should have: - Proven experience with ONDC apps - Ability to demonstrate live ONDC projects - Strong understanding of buyer and seller app features - Excellent problem-solving and communication skills pls bid only if u posses the right experience and can work as freelancer

Estamos desarrollando JAMPY, una nueva aplicación móvil con enfoque en video, en vivos y contenido por categorías. Buscamos un desarrollador Full Stack con experiencia sólida en Flutter + Backend (Firebase o Node.js), capaz de construir el MVP desde cero, con entregas por fases. Este es un proyecto serio, escalable y reservado. Buscamos un perfil responsable, con experiencia comprobada en apps sociales o similares a TikTok, Likee o Bigo. Funcionalidades del MVP (a construir por fases) -Experiencia sólida en Flutter (iOS y Android) -Experiencia con Firebase (Auth, Firestore, Storage, Realtime DB) o backend en Node.js -Conocimiento en integración de video (feed y subida) -Experiencia en UI moderna y lógica de apps sociales -Responsabilidad ...

I'm looking for a freelancer to build an evaluation pipeline for Copilot-style tools (e.g., ChatGPT, Microsoft Copilot, ..,). The pipeline should measure: - Accuracy and groundedness - Latency and throughput - Output quality (fluency, helpfulness, conciseness) Ideal experience: - ML model evaluation - Building QA pipelines for AI tools - Familiarity with benchmarks like BEGIN, GaRAGe, TruthfulQA Please include relevant experience in your bid.

We need to adjust the filtering logic and section titles in the user profile of our Laravel-based e-commerce website. The 3 sections already exist and items are already displayed, but the filters are incorrect and outdated products appear. What needs to be fixed: 1. Featured Ads: - Show only items with an active promotion - Promotion must be currently valid (start and end timestamps must include current time) - Item must not be expired or sold 2. Active Ads: - Show items that are active, not expired, and not sold - May include promoted items 3. Past Ads: - Show items that are expired, sold, or inactive - Sort all sections from newest to oldest - Rename sections from: “Promoted” → Featured Ads “Active” → Active Ads “Disabled” &ra...

EdSpark is an AI-powered app designed specifically for Australian teachers.

Componentes del Proyecto 1. Frontend Institucional – WordPress Conversión del diseño Figma a un tema WordPress personalizado. Página pública con información del producto, beneficios, precios, y contacto. Integración con formularios y enlaces al área privada. Optimizado para SEO y escalabilidad futura. 2. Backend de Usuarios – Node.js + MongoDB Login/registro de usuarios mediante OAuth2 con la API de Tienda Nube. Base de datos en MongoDB para almacenar: Datos de usuarios conectados. Tokens de acceso. Configuración individual de apps instaladas. Estado de conexión y métricas personalizadas. Panel privado para cada usuario con: Resumen de su tienda conectada. Acceso a pequeñas apps que mejoran...

Its basic functionality would be of a social media application like instagram , but with much more twists . If you are confident then we welcome you .

I am looking for a developer with experience in Siberian CMS (Ionic/Cordova, backend in Zend). The module should allow: • Uploading a banner (image) + clickable link via the admin panel • Setting the deadline: “X days” or start/end date (calendar) • Automatic display within a specific folder in the app • Hiding the banner after expiration, displaying a message or alternative content • Compatibility with recent versions of Siberian CMS More detailed project… Creating a module for Siberian CMS that allows displaying advertising banners within a specific folder of the app, with a configurable deadline for display. ⸻ Features: 1. Displaying Banner (image + link): • Customizable image (JPEG/PNG). • Clickable with redirection to an exte...

I'm looking for a skilled developer to upgrade the backend of my personal website, , from Strapi v4 to Strapi v5. Details: - The frontend is built with Next.js. - The backend uses Strapi, currently at version 4. - I want to upgrade Strapi to the latest version: v5.15.1. - All source code can be checked from my Github. Acceptance Criteria: - Strapi is successfully upgraded to v5.15.1. - All plugins are updated and made compatible with Strapi v5. - The frontend is updated to match the new API structure of Strapi v5. - All related frontend unit tests are written or updated accordingly. - End-to-end (E2E) tests must pass. Bidding Instructions:
 To help filter out automated bids, please start your proposal with the name of my city (you can find it on my website: ). Propo...

(Remote – Filipino Applicants Preferred | Company Based in Thailand) We are a fast-growing digital team based in Thailand, building crypto-related platforms, and we’re looking for passionate and skilled individuals to join us remotely! Whether you're a Backend Developer who loves clean architecture, or a UI/UX Designer with an eye for modern, user-centered design — we want to work with you! Open Positions Backend Developer What We’re Looking For: Experience with crypto/blockchain-related projects Proficiency in Laravel, Node.js, or Python/Django Strong knowledge of API integrations, MySQL, and AWS Writes clean, secure, and scalable code UI/UX Designer What We’re Looking For: Strong portfolio in web and mobile app design Proficiency with tools like Fi...

I need a skilled developer to integrate Firebase as the backend for my Flutterflow application. The primary requirement is to set up a real-time database. Key Requirements: - Database integration with Firebase - Setup and configuration of Firebase real-time database - Experience with Flutterflow and Firebase - Knowledge of cloud functions is a plus Ideal Skills and Experience: - Proficient in Flutter and Firebase - Strong understanding of real-time database concepts - Experience in building and deploying applications on Flutterflow - Previous project experience in similar integrations Please provide examples of your past work and relevant experience. Looking forward to your bids!

We are seeking an experienced API developer to create a TeraBox Downloader Player API for our Blogger-hosted site. The API must: Be secure with domain-based request protection. Work seamlessly across all devices (desktop, mobile, etc.). Be cost-efficient and optimized for online hosting. Include source code with detailed documentation for hosting and integration on Blogger. Handle high-traffic scenarios with proper scalability. Provide a user-friendly and intuitive interface for API requests and responses. Support both single video links and folder links from TeraBox, ensuring smooth processing and playback. Additional Requirements: The API should support video preview and download functionality for both single videos and folders. Handle folder links by listing all available files withi...

I'm seeking a skilled developer to create an internal business tool for management. The application should be fast, scalable, and secure, utilizing React.js, Node.js, and GraphQL. Key functionalities include: - User management system - Data analytics dashboard - Task management features Requirements: - Proficient in React.js (modern hooks-based approach) - Experience with Node.js backend (Express) - Strong knowledge in GraphQL API integration - Familiarity with PostgreSQL - Regular code updates on GitHub or GitLab Ideal skills and experience: - Proven track record in full-stack development - Strong problem-solving skills - Ability to work collaboratively and communicate effectively

I'm looking for an experienced developer to create a comprehensive clothes shopping application. This project includes building a website using React and developing an Android app. Website Requirements: - Built on React - Focused on driving sales Android App Features: - User login/sign-up - Product catalog - Shopping cart - Payment gateway - Referral codes - Customer feedback - Hyper-personalized search engine - Offers/coupons - User account Ideal skills and experience: - Strong expertise in React - Proven experience in Android app development - E-commerce development background - Familiarity with payment gateway integration - UI/UX design skills for a seamless shopping experience - Ability to implement advanced features like hyper-personalized search and referral systems Please p...

Soy entrenadora de ciclismo con casi 15 años de experiencia, y estoy a punto de lanzar una aplicación revolucionaria en el mundo del entrenamiento ciclista: una app gestionada 100% con inteligencia artificial, pensada para ofrecer una experiencia premium a un precio accesible. La primera versión de la app ya está lista para salir al mercado, pero necesito a una persona que pueda continuar con el mantenimiento, mejoras continuas y desarrollo progresivo basado en el feedback de los usuarios. Busco a alguien que hable español, tenga conocimientos sólidos en desarrollo de apps (idealmente Flutter o similar) y también en aplicación de IA (especialmente integraciones con APIs como la de OpenAI). Además de conocimientos técn...

Preciso de um desenvolvedor experiente para integrar o no meu aplicativo de aluguel de carros. A integração deve suportar processamento de pagamentos para pagamentos únicos e recorrentes. Os métodos de pagamento a serem aceitos incluem cartão de crédito e PIX. Requisitos: - Integrar para processamento de pagamentos - Suporte para pagamentos únicos e recorrentes - Aceitar cartões de crédito e pagamentos via PIX - Garantir uma experiência de pagamento suave e segura Habilidades e Experiência Ideais: - Experiência com integração do - Familiaridade com desenvolvimento de aplicativos de aluguel de carros - Sólido entendimento de processamento de pagamentos e gerenciamento de assinaturas - ...

I'm seeking a dedicated trainer to cover an extensive range of subjects. Subjects include: - Programming languages: C, C++, Java, Python - Fullstack development: Frontend (HTML, CSS, JavaScript) and Database management (SQL, NoSQL) - Data Science - Digital Marketing Working hours: 2:00 PM to 8:30 PM Ideal skills and experience: - Proficiency in all mentioned subjects - Previous training or teaching experience - Strong communication skills - Ability to tailor lessons to different skill levels Please provide a detailed approach to training, along with your experience and qualifications.

Explicit Filtering Phase project as discussed in chat for phrase detection and resultant redirect.

Hello! I need someone to build this site for me, ideally if you already have experience in this industry. As a reference I can offer already finished leaked source codes. (needs to be integrated with Bitcoin payment gateway, and I don't want to redirect users, I want it to be displayed everything on my site) (I will provide Bootstrap frontend)