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    1,152 nestjs missions trouvées
    Création plateforme web type Malt
    S'est terminé left

    ...reversement automatisé. Idéalement Stripe Connect ou équivalent. – Tableau de bord permettant le suivi des projets, factures, évaluations et statistiques. – Interface moderne et épurée ; je m’inspire des lignes claires de Figma, Notion, Airbnb. Mobile-first dans l’ergonomie, même si seul le web est requis. Stack suggérée (à discuter) React / ou Vue.js côté front, Node.js + Express ou NestJS, ou encore Laravel côté back, base SQL ou NoSQL selon vos bonnes pratiques, intégration Stripe, déploiement sur AWS, GCP ou Vercel / Render. Livrables attendus 1. Cahier des charges technique bref validé ensemble. 2. Maquettes haute fidé...

    €9 / hr Average bid
    €9 / hr Offre moyenne
    41 offres
    Site Web de Réservation de Bateaux
    S'est terminé left

    ...développeur) Mise en place des webhooks pour valider le paiement 4. Back-Office Administrateur Gestion des ports, trajets, horaires et tarifs Gestion des réservations Export des rapports : CSV / Excel Dashboard (statistiques basiques) Technologies souhaitées (flexibles) Tu peux proposer une stack différente, mais idéalement : Frontend : React / ou équivalent Backend : Node.js (Express / NestJS) ou Laravel Base de données : PostgreSQL ou MySQL Hébergement : VPS ou Cloud (selon proposition du développeur) Livrables attendus Site complet fonctionnel, testé et sécurisé Code source propre et documenté Guide d’installation / documentation technique Assistance pour le d&e...

    €235 Average bid
    €235 Offre moyenne
    42 offres

    Je souhait...revenus ⸻ Design souhaité Je veux un design similaire à ce dashboard : • Style moderne, épuré, couleurs beige/vert/jaune • Cartes arrondies • Menu latéral clair • UI conviviale et professionnelle (Référence visuelle incluse dans la discussion.) ⸻ Architecture souhaitée Tu peux proposer ce que tu maîtrises le mieux, mais je suis ouvert à : • Frontend : React / • Backend : Node.js, NestJS ou Laravel • Base de données : PostgreSQL • Hébergement : AWS ou Supabase • Authentification sécurisée ⸻ Livrables • Code source complet • API documentée • Interface responsive • Base de donné...

    €29 Average bid
    €29 Offre moyenne
    14 offres

    ...TechCrunch +1 Taux de change : utiliser une source fiable (ex : exchangeratesapi, , ou service interne) pour conversions horaires et historique. Middleware d’automatisation : Make / Zapier pour flux rapides si besoin (prototypage). 5) Architecture & stack recommandé Frontend : React (Typescript) + Tailwind — UI responsive, pages backoffice (Kanban, tableaux, formulaires). Backend : Node.js (NestJS / Express) ou Python (Django REST) — API REST/GraphQL. DB : PostgreSQL (ACID, multi-devise), Redis (cache + sessions). Moteur de calcul : HyperFormula (client/server) ou exécution côté serveur avec sandbox. File storage : S3 (AWS) ou compatible. Auth & SSO : Auth0 / Keycloak / custom JWT + 2FA. Hosting : AWS (ECS / Lambda) o...

    €522 Average bid
    €522 Offre moyenne
    27 offres

    Je recherche un développeur expérimenté dans Nestjs, Fastify, , redis, mongodb, flutter et sqlite, pour travailler sur une application de messagerie similaire à WhatsApp. Tâches principales : - Refactorisation complète du système d'authentification (Email et mot de passe, Google Auth, Téléphone + OTP) - Maintenir le système d'appels audio et vidéo, puis ajouter la possibilité de basculer d'appel audio à appel vidéo. - L'utilisateur aucours d'un appel doit avoir la possibilité de la fénêtre de l'appel encours et ecrire avec d'autres utilisateur sur l'application ou en dehors de l'application. - Maintenance de la fon...

    €1256 Average bid
    €1256 Offre moyenne
    64 offres

    Projet : Création d’une application d’offres d’emploi Flutter Natif À partir d’un projet FlutterFlow existant de 63 écrans mode sombre et claire (design + navigation déjà réalisés) Développement frontend en Flutter (Dart) + backend en NestJS (TypeScript) ⸻ Objectif global : Reprendre le code FlutterFlow fourni ou le recrée et le rendre fonctionnel en Flutter natif, tout en respectant exactement et fidèlement le design initial. Développer le backend complet avec stockage sécurisé, système d’abonnements, et fonctionnalités avancées. ⸻ Fonctionnalités attendues : Utilisateurs (candidats & recruteurs) • Création et ...

    €1169 Average bid
    €1169 Offre moyenne
    68 offres

    Objectif du projet Je souhaite faire développer une plateforme web de location entre particuliers, inspirée de Fat Llama, avec une version MVP (Minimum Viable Produ...Paiement transféré à ce moment-là 6. Tableau de bord utilisateur • Liste des objets en ligne • Réservations faites et reçues • Statuts : en attente, confirmée, terminée 7. Espace admin simple • Liste utilisateurs / objets • Gestion signalements ou litiges • Tableau des transactions ⸻ Stack technique recommandée • Frontend : React.js ( ou équivalent) • Backend : Node.js + Express ou NestJS • Base de données : PostgreSQL (via Prisma ou Supabase) • Paiement : Stripe Co...

    €765 Average bid
    €765 Offre moyenne
    28 offres

    1. Objectif du Projet Développer une...vitesse variable). Détection des CAPTCHAs et intégration avec des solutions de résolution. Analyse des taux de blocage et adaptation des stratégies. 6. Analytics & Reporting Statistiques détaillées sur les performances des posts et interactions. Suivi des taux d’engagement et recommandations d’optimisation. Export de rapports pour les clients. Back-End Langage : Python (Django/FastAPI) ou Node.js (NestJS) Base de données : PostgreSQL / MongoDB Gestion des tâches : Celery / Redis Sécurité : JWT, OAuth 2.0 Front-End Framework : React.js / UI : TailwindCSS / Material UI Infrastructure Serveurs : VPS/Dédié (Ubuntu 22.04) Proxy Management : R...

    €948 Average bid
    €948 Offre moyenne
    41 offres

    ...Gestion des utilisateurs et des profils ✅ Système de messagerie/chat en temps réel ✅ Réservation et paiement sécurisé (Stripe, PayPal) ✅ Géolocalisation et affichage de cartes interactives ✅ Notifications push et intégration Firebase ✅ Interface utilisateur fluide et moderne ? Stack technique requise : ? Front-end :Flutter (Dart), Provider ou Riverpod ⚙️ **Back-end : Node.js () ou NestJS, Firebase ? Base de données : PostgreSQL ou MongoDB, Redis (cache) ? API & Services : Google Maps API, Stripe/PayPal API, Twilio/Firebase Cloud Messaging ? Sécurité :JWT (OAuth 2.0), HTTPS avec SSL, chiffrement AES-256 ☁ Déploiement : Docker, Kubernetes, Google Cloud/AWS, CI/CD ? Profil recherché...

    €632 - €1263
    Scellé LDN
    €632 - €1263
    35 offres

    Je suis en train de créer un site e-commerce en utilisant Angular et NestJS avec postgreSql et TypeORM . Je souhaite intégrer CMI (Centre monétique interbancair) comme méthode de paiement pour mon site. Je recherche un développeur qui peut m'aider à intégrer CMI à mon backend NestJS. Je veux que les clients puissent effectuer des paiements en utilisant CMI. Je suis à la recherche d'un développeur expérimenté qui peut m'aider à intégrer CMI de manière sécurisée et conforme aux réglementations en vigueur. Merci de me contacter si vous êtes intéressé(e) par ce projet.

    €15 Average bid
    €15 Offre moyenne
    5 offres
    Développeur Backend JS
    S'est terminé left

    ...nous recherchons actuellement pour cette équipe, sur notre plateau, un ou une DEVELOPPEUR BACKEND JS (H/F). Profil La maîtrise de NodeJS et de TypeScript est un prérequis. Vous maîtrisez Docker et avez des bases solides en environnement Linux (distribs Debian, Alpine, Ubuntu) Idéalement vous avez des connaissances en réseau (routage, DNS, IP Table...). Bonus pour la maîtrise d'Angular et/ou NestJS. Vous mettez le focus sur la qualité de code, dans un environnement agile. Les tests automatisés et l'intégration continue ne vous sont pas étrangers. Idéalement, vous êtes issus d'une formation en IT de type BAC+5 et avez des connaissances en anglais suffisantes. Le poste ...

    €33 / hr Average bid
    €33 / hr Offre moyenne
    23 offres

    ...SVG rendering Strong JavaScript / TypeScript logic Experience building interactive UIs: Drag and drop Resize handles Coordinate positioning Good understanding of: Geometry calculations Coordinate systems (x, y, width, height) Scaling and proportions Collision detection (prevent overlap) Ability to structure clean modular code Backend / Integration (Basic Required) Ability to integrate REST APIs (NestJS backend) Handle structured JSON layout schemas Basic understanding of state management Good to Have (Bonus) Experience in: Floor plan tools CAD-style interfaces Construction or architecture tech Knowledge of: Constraint-based layout logic Space allocation algorithms Experience integrating OpenAI APIs Experience exporting Canvas to PNG/PDF Responsibilities Design and implement a r...

    €230 Average bid
    €230 Offre moyenne
    18 offres

    We are developing a complete marketplace ecosystem that includes: Website ( (React Framework) Mobile App buyer and seller (iOS & Android) ( React native ) Store Owner Dashboards (React (or ) Advanced Admin Control Panel (React (or ) Digital Promotional Magazine (PDF System) Backend (Node.js (NestJS or Express) Our goal is to build a scalable digital mall where businesses can sell wholesale and retail products while benefiting from powerful marketing and management tools. Platform Owner (Admin) Features As the platform owner, you will have full strategic and financial control. Coupons & Campaign Management Create global coupon codes (fixed or percentage) Apply coupons to specific stores or categories Control expiration dates and usage limits Feature selected stores

    €2005 Average bid
    €2005 Offre moyenne
    395 offres
    Full-Stack Web3 Engineer (USDC)
    5 jours left
    Vérifié

    ...js/TypeScript) API: Build the REST API (NestJS/Fastify) for merchant payment intents and webhooks. Workers: Build the fault-tolerant "Watcher" (indexing) and "Sweeper" (fund movement) services. Database: Design and migrate the PostgreSQL schema for high-integrity financial records (idempotency, audit logs). 3. Frontend Development (React/) Admin Console: Build a secure, internal dashboard to view payment flows, manual sweep overrides, and system health (e.g., "Low Gas" alerts). 4. QA & Handoff Testing: Write an E2E test suite using Hardhat/Anvil (forking Mainnet) to simulate reorgs and edge cases. Documentation: Deliver API docs (Swagger/OpenAPI) and a "Runbook" for operations. Tech Stack Requirements Backend: TypeScript, Node...

    €3555 Average bid
    €3555 Offre moyenne
    31 offres

    ...architecture project involving: PDF parsing (11MB+ technical reports) AI defect extraction Structured data normalization Repair cost estimation logic Long-running job orchestration Background workers / queues Multi-user concurrency Production deployment architecture NOTE: Required Technical Stack (Non-Negotiable) You must have experience with: Node.js or Python backend (FastAPI / Express / NestJS) Background job queues (BullMQ / Celery / Redis / RabbitMQ) PostgreSQL Object storage (S3 or equivalent) Production deployment (AWS / DigitalOcean / similar) API architecture design Handling long-running async workflows Bonus: Experience with AI APIs (OpenAI / Anthropic) Experience with document parsing Cost optimisation for AI workloads NOTE: The Core Challenge ...

    €2380 Average bid
    €2380 Offre moyenne
    231 offres

    Jsme dva spoluzakladatelé a dokončujeme digitální platformu zaměřenou na online video obsah. Projekt je z velké částí hotový, ale původní vývojář ho musel opustit ještě před finální fází. Hledáme někoho, kdo převezme technickou část, pomůže dokončit poslední věci a bude s námi projekt dál rozvíjet. Jedná se o webovou aplikaci, frontend je v , backend v NestJS, databáze PostgreSQL. Hledáme někoho, kdo chce být součástí nového projektu a aktivně se podílet na jeho směřování. Projekt si financujeme sami, takže momentálně nemůžeme nabídnout fixní pl...

    €24 / hr Average bid
    €24 / hr Offre moyenne
    35 offres

    ...platform. 2. OVERVIEW OF THE RECOMMENDED TECH STACK Frontend • (React) o SEO-ready, server-side rendering, fast o Recommended hosting: Vercel Backend API Two equivalent options: 1. Python – Django + Django REST Framework 2. Node.js o SEO-ready, server-side rendering, fast o Recommended hosting: Vercel Backend API Two equivalent options: 1. Python – Django + Django REST Framework 2. Node.js – NestJS Database • PostgreSQL (relational, ideal for bookings) • Redis (caching and availability calculations) Payments • Stripe Connect (Standard or Express) o Split payments o Identity checks Payout flows Authentication • JWT tokens via backend, or • Auth0 / Supabase Auth Hosting / Cloud • Frontend: Vercel • Backend: AWS, Render o...

    €20003 - €50009
    Scellé LDN
    €20003 - €50009
    133 offres

    ...Customer Flow (Mobile-friendly): QR code scan → rating page (stars or emojis) Conditional redirect logic Private feedback form Thank-you page Admin Dashboard: Secure login Add/manage businesses Store Google review links Generate & download QR codes View feedback & basic analytics (scans, ratings) Technical Requirements Frontend: React / (preferred) Backend: Node.js (Express/NestJS) or Laravel Database: PostgreSQL / MySQL QR code generation (unique per business) Clean, scalable SaaS architecture Deliverables Fully working web app (MVP) Admin dashboard QR generation system Live deployment Source code + basic documentation....

    €787 Average bid
    €787 Offre moyenne
    37 offres

    Fix & Improve Existing NestJS + PostgreSQL + Redis + React Native Project Hello I’m looking for an experienced full-stack developer to help me fix, refactor, and improve my existing project built with NestJS, PostgreSQL, Redis, and React Native. The project is already developed, but it currently has bugs, unfinished logic, and stability issues. I need someone who can understand existing code, fix problems, and make the system stable and production-ready. Tech Stack: Backend: NestJS Database: PostgreSQL Caching / Queue: Redis Mobile App: React Native API: REST API Tasks: Review and analyze existing NestJS backend Fix bugs and logical issues Improve code structure and performance Fix database-related issues (PostgreSQL) Fix and optimize Red...

    €20 Average bid
    €20 Offre moyenne
    23 offres

    ...Wallet system can be reused for new business models • Pages, categories, and logic can be extended without major rewrite This flexibility is a key requirement. ⸻ SECURITY & PERFORMANCE • Secure authentication (JWT or equivalent) • Encrypted sensitive data • Rate limiting and abuse prevention • Audit logs • Scalable and maintainable codebase ⸻ TECHNOLOGY PREFERENCE • Backend: Node.js (NestJS) or Laravel • Frontend: React / • Database: PostgreSQL or MySQL • Queue/Workers: Redis or equivalent • Hosting: VPS (AWS / DigitalOcean / Hetzner) • HTTPS, backups, and deployment support ⸻ DELIVERABLES • Fully working SaaS web application • Original source code (no reused or leaked scripts) •...

    €814 Average bid
    €814 Offre moyenne
    47 offres

    Job Title: NestJS Backend Developer – High-Performance Car Bulk Import (ETL) The Challenge We are looking for a senior-level NestJS developer to build a robust, production-ready car data import engine for our vehicle marketplace. This isn't a simple "upload and save" task; we require a sophisticated streaming pipeline capable of processing massive datasets (CSV, XML, JSON) with minimal memory footprint and high reliability. Core Task Build a POST /imports/cars endpoint that: Automatic Format Detection: Handles multipart/form-data and identifies the file type (CSV, XML, or JSON) programmatically. Stream-Based Processing: Processes data using Node.js Streams / AsyncIterables. The application should never load the full file into RAM. Data Pipeline: Imple...

    €129 Average bid
    €129 Offre moyenne
    52 offres

    ...developers to build out new features, optimize performance, and scale our vehicle marketplace platform. We need someone who is comfortable jumping into a mature codebase, collaborating via Git, and contributing to a high-quality TypeScript environment. Technical Stack Frontend: (React), TypeScript. Styling: Tailwind CSS & Bootstrap (handling a hybrid UI environment). Backend: Node.js / NestJS. Database: MongoDB. Tools: Git/GitHub, Vercel, and experience with AI-assisted coding (Cursor, Lovable, etc.) is a major plus. Key Responsibilities Feature Development: Collaborate with the team to ship new frontend components and backend endpoints. Data Handling: Assist in building and maintaining complex features like bulk data importers (CSV/XML/JSON) and advanced search filt...

    €6 / hr Average bid
    €6 / hr Offre moyenne
    106 offres
    Prop Trading Platform Development
    S'est terminé left

    ...document defines the final scope for building a modern prop trading platform inspired by FTMO, FundedNext, The5ers, and FXIFY. The platform supports real-time trading data, automated rule enforcement, secure payments, KYC verification, and community engagement. 2. Technology Stack Layer Frontend Technology 14+, TypeScript, Tailwind, shadcn/ui Backend Database Node.js (Express/NestJS), TypeScript MongoDB, PostgreSQL Authentication JWT, , OAuth Real-Time Payments CMS Hosting MetaApi, Crypto, Bank API, Stripe Payload CMS / Sanity Vercel, Render, Railway 3. Core Platform Features 3.1 User Dashboard ● Live MetaApi trading data ● Balance, Equity, Drawdown ● Profit Target Tracking ● Trade History (Charts + Tables) ● Monthly P&L Calendar ● Account

    €255 Average bid
    €255 Offre moyenne
    26 offres

    ...texto ou JSON estruturado, controle de custos e logs detalhados. 8. Painel de Controle Painel administrativo com métricas de uso, status das integrações, consumo de IA e logs. Painel simplificado para clientes (opcional no MVP). 9. Requisitos Técnicos Arquitetura baseada em APIs, processamento assíncrono, banco de dados relacional, logs e rastreabilidade. Stack sugerida: React/, Node.js (NestJS) ou Python (FastAPI), PostgreSQL, Redis, Docker e Cloud. 10. Modelo Operacional O administrador gerencia todos os fluxos. O sistema deve permitir definição de limites por cliente e ações automáticas em caso de excedente. 11. Entregáveis Código-fonte completo em repositório do cliente, documenta&ccedi...

    €623 Average bid
    LDN
    €623 Offre moyenne
    34 offres
    Android TV IPTV Xtream App
    S'est terminé left

    ...integrated) Room DB for favorites / watch history WorkManager for automatic updates Glide/Coil for posters TV-optimized navigation (D-Pad focus handling) B) Backend / Admin Panel Your control center: Device management Manage MAC IDs Upload background images Push messages to devices Filter categories (languages) Control player settings Technical stack: Backend API (e.g.) Node.js + NestJS or Laravel or Django Database PostgreSQL or MySQL Web Admin Panel React / Vue or Laravel Blade Push system Firebase Cloud Messaging (FCM) C) Remote Setup (Quick Code / QR) For your “Portal Quick Code” feature: TV displays a code → user enters it on phone/web → server configures the box Requires: Auth tokens Web form Device ID mapping This ...

    €1840 Average bid
    €1840 Offre moyenne
    136 offres

    ...vehicle data. - SEO-Optimized Blog: Ready for content marketing and organic traffic growth. - Admin Control Panel: Total management of listings, payments, notifications, and site content. Preferred Tech Stack (Open to Suggestions): We’re aiming for speed, security, and scalability — your stack should reflect that. Ideal direction may include: - Frontend: / React / Vue - Backend: Node.js / NestJS / Laravel / Django - Database: PostgreSQL / MySQL with smart indexing - Hosting: AWS / Vercel / DigitalOcean (scalable infrastructure) - Core Principles: Clean code, modular architecture, and performance-first design Deliverables: - Fully functional web platform (frontend + backend) - Sleek, responsive UI across all devices - Admin tools for full control - Secure authentica...

    €4564 Average bid
    €4564 Offre moyenne
    206 offres
    Need to finish LMS Backend -- 2
    S'est terminé left

    My React front-end for a simple two-role LMS (admin / student) is ready ; what I still need is a production-ready backend so I can finally push the site live. Stack & expectations • Node.js with NestJS — structured, testable REST API only • PostgreSQL accessed through Prisma ORM • JWT authentication and role-based access

    €58 Average bid
    €58 Offre moyenne
    6 offres

    ...Customer database Loyalty system manager Order management Hours/holidays selector Delivery settings Reporting Marketing tools (email + SMS blasts) 10. Mobile App (Phase 2) A simple app using the same API/backend: React Native preferred SMS login Menu + ordering Loyalty wallet Order tracking Push notifications (future) Technical Preferences Frontend: or React Backend: Node.js (NestJS or Express) or Laravel Database: PostgreSQL preferred Payments: Stripe SMS: Twilio Delivery: DoorDash Drive / Uber Direct Hosting: Vercel + AWS or DigitalOcean Clean, scalable architecture required What to Include in Your Proposal ONLY APPLY IF YOU HAVE EXPERIENCE WITH AT LEAST ONE OF THESE: POS integrations Ordering systems Loyalty systems Complex backend architectures ...

    €6623 Average bid
    €6623 Offre moyenne
    217 offres

    ...Calendar availability sync (Google and Outlook) * Change detection and conflict warnings (dates, scope, pricing) * E-signature flow with version history * Automated payments (Stripe-first) * Email and notification system --- ### Technical Stack (Flexible but Opinionated) **Frontend** * React or * Mobile-first, clean UX * Chat and agreement side-by-side views **Backend** * Node.js (NestJS or Express) * REST and event-driven architecture * Agreement and payment orchestration services **AI Layer** * LLM-based extraction and structuring * Change detection and clause diffing * Assumption tracking and auditability **Integrations** * Google and Outlook Calendar * Stripe (payments and invoicing) * DocuSign or native e-signature * Email (Gmail and Outlook) --- ### Who We Are ...

    €852 Average bid
    €852 Offre moyenne
    164 offres

    ...espacio de interacción con la comunidad. El sistema de monedas/créditos permitirá a los usuarios adquirir capítulos según configuraciones que definiré durante el desarrollo. El panel de administración debe facilitar la subida de capítulos, la gestión de usuarios y el control de las transacciones. Stack técnico Frontend en React o , backend en Node.js (me inclino por Express, aunque acepto NestJS si resulta más eficiente). La base de datos puede ser MySQL o PostgreSQL; elegiré la opción que mejor encaje con tu propuesta de arquitectura. La interfaz tiene que ser responsive, optimizada para dispositivos móviles. Entregables esenciales • Frontend Webtoon con scroll vertical ...

    €85247 Average bid
    €85247 Offre moyenne
    59 offres

    ...rates, admin approval & Ranking) * Our Field Staff participate in the same app one app (Accompanying with patients ) all in one app (IOS and Android ) with task checklists (pickup, hospital visits, discharge, Tours , check in and Check out of hotels , lodges , travelling by cars arrangements etc.) Tech Stack (preferred) * Frontend: React (Web), React Native (Mobile) * Backend: FastAPI (Python) or NestJS (Node.js) * Database: PostgreSQL + Redis * Infra: AWS/Azure/GCP, Dockerized, CI/CD ready * Security: HIPAA-grade, Indian IT Act compliance, encrypted storage, audit logs ( Capture Time stamp,DD/MM/YY with time , Who has modified,or changed) Delivery Expectations * Cloud-native monolithic basic MVP (future-ready for microservices on iteration ) * Documentation (API specs, ar...

    €505 Average bid
    €505 Offre moyenne
    169 offres

    ...Payout preparation & SEPA export Generate payout proposals from posted credit notes (idempotent, no duplicates) Validate bank data (IBAN) + business rules Create SEPA pain.001 XML export batches for bank portal upload Track export history + statuses (exported/paid), with an MVP “mark as paid” workflow Design for future reconciliation (optional) Tech Stack Node.js + TypeScript Backend: Express / NestJS / API routes (existing system) Validation: Zod (or similar) Queue/Jobs: BullMQ/Redis (or similar) Cron/Scheduler DB: existing (Prisma) SEPA XML generation (pain.001) Requirements Strong experience with Node.js/TypeScript in production systems Comfortable working in legacy/historically grown codebases Solid understanding of: API security & validation backgrou...

    €17 / hr Average bid
    €17 / hr Offre moyenne
    108 offres

    ...Payout preparation & SEPA export Generate payout proposals from posted credit notes (idempotent, no duplicates) Validate bank data (IBAN) + business rules Create SEPA pain.001 XML export batches for bank portal upload Track export history + statuses (exported/paid), with an MVP “mark as paid” workflow Design for future reconciliation (optional) Tech Stack Node.js + TypeScript Backend: Express / NestJS / API routes (existing system) Validation: Zod (or similar) Queue/Jobs: BullMQ/Redis (or similar) Cron/Scheduler DB: existing (Prisma) SEPA XML generation (pain.001) Requirements Strong experience with Node.js/TypeScript in production systems Comfortable working in legacy/historically grown codebases Solid understanding of: API security & validation backgrou...

    €393 Average bid
    €393 Offre moyenne
    133 offres

    Project Context: We are an EdTech/Streaming platform with a solid backend built in NestJS (Microservices). The code was recently audited and rated 8/10 in quality. However, we are facing critical issues with the production environment, video processing speed, and the user interface. The Mission (Fixed Price Contract): We are looking for a Senior Expert to take over, clean the server mess, optimize video processing, and launch a new UI. Scope of Work (5 Key Pillars): 1. Server Rescue & Data Safety (CRITICAL PRIORITY): Access the live server (SSH) and clean up the chaotic Docker/Nginx configurations left by the previous dev. Map Existing Data: We have 60TB of HLS video data on the server. You must map this volume correctly to the new Docker containers so the platform works wi...

    €1779 Average bid
    €1779 Offre moyenne
    173 offres
    Payload CMS Expert
    S'est terminé left

    We are looking for a developer who has expertise in Payload CMS and can customize it as per our need. We already have NextJs Admin Panel and NestJs Backend APIs and Database in PostgreSQL. We would like to use Payload CMS with in our existing Admin only for Content Management of Multiple sites we have and content translations and Media. We would like to configure the payload CRM to see how it will fit with our existing Admin Panel , using shared DB. ONLY SERIOUSE and Payload CMS Experts APPLY.

    €121 Average bid
    €121 Offre moyenne
    147 offres

    ...Payout preparation & SEPA export Generate payout proposals from posted credit notes (idempotent, no duplicates) Validate bank data (IBAN) + business rules Create SEPA pain.001 XML export batches for bank portal upload Track export history + statuses (exported/paid), with an MVP “mark as paid” workflow Design for future reconciliation (optional) Tech Stack Node.js + TypeScript Backend: Express / NestJS / API routes (existing system) Validation: Zod (or similar) Queue/Jobs: BullMQ/Redis (or similar) Cron/Scheduler DB: existing (Prisma) SEPA XML generation (pain.001) Requirements Strong experience with Node.js/TypeScript in production systems Comfortable working in legacy/historically grown codebases Solid understanding of: API security & validation backgrou...

    €527 Average bid
    €527 Offre moyenne
    194 offres

    ...website with an admin panel, and we’re looking for an experienced Full-Stack TypeScript Developer to complete a set of clearly defined tasks within 1 day. This is not a long-term project — it’s a time-boxed task with specific deliverables and deadlines. Tech Stack The developer must be comfortable working across the full stack: Frontend: React or (TypeScript + SCSS) Backend: Node.js with NestJS Admin Panel: JavaScript Database: PostgreSQL (via Prisma ORM) Auth & APIs: JWT, OAuth, third-party APIs Cache & Storage: Redis, Cloudflare R2 (or S3-compatible storage) DevOps (basic): Docker, deployment, CI/CD (YAML configs) Tasks & Timeline All tasks are fully documented here: Task Details (Google Sheet):

    €29 Average bid
    €29 Offre moyenne
    60 offres

    ...Causes, Impact Stats, Latest News) About Us / Mission / Vision pages Programs & Causes listing with detail pages Donation pages with payment integration News & Updates (Blog) Events pages Volunteer application form Contact page Image & Media Gallery Multi-language support (English + Urdu) SEO optimization (meta tags, schema, sitemap) --- Backend Requirements Technology Stack Node.js NestJS or PostgreSQL database Prisma ORM RESTful APIs Backend Features Custom CMS (Pages, Posts, Programs, Events) Donation management system Volunteer management Media uploads (Cloud storage) Role-based authentication (Admin roles) Email notifications Secure API architecture --- Authentication & Admin Panel Admin Panel Features Secure login with rol...

    €473 Average bid
    €473 Offre moyenne
    98 offres

    ...classification Action / constraint management Role-based dashboards Weekly exports (PDF / CSV) Audit logging Important constraints The system must NOT directly edit project schedules Input is via weekly PDF uploads only Logic is time-based, not priority-based This is a control system, not a scheduler Tech Stack (Open to suggestion) Frontend: React (preferred) Backend: Python (FastAPI) or Node (NestJS) Database: PostgreSQL File storage: cloud object storage Deployment: Docker-based What to Include in Your Proposal Please include: Recommended tech stack Estimated timeline (weeks) Estimated cost Team size / role breakdown Relevant experience (especially workflow, document-based, or planning systems) Nice to Have Experience with PDF parsing Experience with const...

    €2540 Average bid
    €2540 Offre moyenne
    346 offres

    ...details beyond what admin allows 4️⃣ Lead Management (Admin) Admin dashboard should allow: Create leads manually View all leads Assign leads to vendors Change lead status (New, Assigned, In Progress, Closed) View vendor profiles Tech Stack Preferences (Open to Suggestions) Preferred stack (but flexible if justified): Frontend: React / / plain HTML + JS Backend: Node.js / Express / NestJS Database: PostgreSQL / MySQL Auth: Custom or Supabase/Firebase Auth Hosting: Cloud-ready (Vercel, VPS, etc.) The system should be: Modular Scalable Easy to maintain What I Already Have Live Wix website (marketing site) Clear product flow Defined onboarding logic Pilot city: Jaipur (India) Deliverables Working codebase Vendor onboarding flow Vendor & admin dashboard...

    €123 Average bid
    €123 Offre moyenne
    63 offres

    Necesito un desarrollador sénior que hable español y domine la arquitectura compuesta por Laravel, , NestJS y Flutter para tomar la batuta de las próximas mejoras de mi plataforma. Objetivo principal El sistema ya esta funcionando perfecto y solo hay que agregar puntos adicionales que se explicara con un video. Qué espero de tu perfil • Experiencia comprobable, al menos moderada, en los cuatro frameworks mencionados. • Capacidad para analizar el estado actual del proyecto, proponer un plan de trabajo y ejecutarlo con autonomía. • Disponibilidad inmediata o, como máximo, dentro de la fecha que me indiques con exactitud. • Disposición para firmar un contrato de confidencialidad y de prestación de servicios ...

    €382 Average bid
    €382 Offre moyenne
    78 offres

    ...The project is an MVP, with a clearly defined scope and architecture. Core Use Case Daily tracking of automotive reconditioning work VIN-based workflow Jobs / Repair Orders (RO) Before / After photo documentation Technician activity tracking Historical records per vehicle Technical Requirements (Mandatory) Please apply only if you are comfortable with the following: Backend: Node.js (Express / NestJS / Fastify) Frontend: React / Database: SQL (MySQL or PostgreSQL) Infrastructure: Deployed on our VPS Backend + DB under our control No Firebase No managed backend services Architecture: Separate backend and frontend Environment variables (.env) Clean project structure GitHub repository owned by us Docker is acceptable but not required. Functional Scope (MVP) User authentication (Adm...

    €489 Average bid
    €489 Offre moyenne
    312 offres

    ...Ensure scalability, security, and performance. - Establish development, testing, and documentation best practices. - Technically coordinate with QA, design, and product. Requirements - Degree in Computer Science, Software Engineering, or related field. - Proven experience designing scalable, complex full-stack architectures. - Strong knowledge of modern stacks (e.g., React + TypeScript, Node.js/NestJS, PostgreSQL or similar). - Experience with API design, authentication, role-based access, and complex state management. - Practical AI integration experience (OCR, LLM APIs, intelligent automation, chatbots). - Experience with offline-first applications and data synchronization. - Strong technical decision-making and leadership skills. - Product-minded, quality-focused, and proble...

    €18 / hr Average bid
    €18 / hr Offre moyenne
    126 offres

    ...Situation: I purchased a custom software solution (approx $4k investment) built with a modern stack. I have been told by a third party that the code is "bad quality" and that "the database is just a copy of WordPress". I need to verify if this is true or false. The Tech Stack (Based on the Repo): Architecture: Microservices (API, Media API, Video Processing Worker, Storage Server). Backend: NestJS (TypeScript), TypeORM. Frontend: , React, Tailwind CSS. Database: PostgreSQL. DevOps: Docker, Docker Compose, PM2. Your Task: I will provide you access to the GitHub repository. You need to: Review the Code Structure: deeply analyze the back and front folders. Analyze the Database Schema: Verify if the database is properly designed using TypeORM entities or ...

    €144 Average bid
    €144 Offre moyenne
    136 offres

    ...modules developed in Python FastAPI Refine subscription, payment, and webhook flows using Stripe Manage database migrations (PostgreSQL + Prisma) Integrate media uploads and storage using AWS S3 Optimize performance, SEO, and Core Web Vitals Prepare the system for production and scalability Tech Stack Frontend: 15+, TypeScript, Tailwind CSS 4, shadcn/ui Backend: Node.js, NestJS, Python FastAPI (AI modules) Database: PostgreSQL with Prisma ORM Payments: Stripe (subscriptions, webhooks, customer portal) Infrastructure: AWS S3, Resend, , Vercel Mandatory Process Rules (Non-Negotiable) Daily GitHub commits, small, clear, and atomic Large or bulk code submissions will be rejected Massive commits are considered a quality-control and anti-fraud viol...

    €421 - €842
    Scellé LDN
    €421 - €842
    462 offres

    ...assumption, meaning no repository or component access before acceptance. If post-acceptance access is provided to the existing FlutterBridge, DualCam, and overlay UI components, the delivery time can be compressed accordingly. We are fully aligned with the acceptance criteria and non negotiables you outlined, including offline reliability, kill resume safety, versioned timelines, cheap mode gate, NestJS as source of truth, Redis based appeals workflow, and end to end demo proof per milestone. Our delivery will strictly follow the milestone structure M0 through M3, with Phase 0 Cheap Mode Gate used to validate the full state machine and reliability paths before any gold provider wiring. No open questions from our side at this point. Once you confirm whether this proceeds as Gre...

    €842 Average bid
    €842 Offre moyenne
    1 offres
    Flutter/Native + NestJS -- 2
    S'est terminé left

    Task Doc: Guarantee Overlay (Flutter/Native + NestJS)

    €674 Average bid
    €674 Offre moyenne
    1 offres
    Cross-Platform Manga Reader App
    S'est terminé left

    ...releases User tools: search users, manage bans, manually add coins/subscriptions Payment oversight: view transaction logs, handle refunds/manuals, monitor webhook status Notification sender for broadcasts Basic reports and analytics Recommended Technical Stack Mobile: Flutter (state management: Riverpod or Bloc) Backend: Firebase suite (Auth, Firestore, Storage, Functions, FCM) or custom (Node.js/NestJS + database like PostgreSQL/MongoDB) Payments: Custom implementation with webhook endpoints for verification (integrate merchant APIs as chosen later) Offline handling: dio + flutter_downloader + local DB (Isar/Hive) for chapters/metadata Reader: custom vertical scrolling widget or extended_image/photo_view packages Admin panel: Flutter Web (shared code) or dedicated framework...

    €777 Average bid
    €777 Offre moyenne
    244 offres

    ...group chats (WhatsApp/Telegram style). Trending Dashboard: Real-time metrics showing trending Topics, Subjects, Influencers, and News. 4. Technical Requirements Architecture: The app will reside on a subdomain (e.g., ) with seamless authentication/session sharing from the main platform. Tech Stack: We are open to suggestions but prefer React/ for the frontend and Node.js/NestJS with WebSockets () for real-time functionality. Media Support: Robust handling of video, audio, and image uploads. Role & Responsibilities Design and develop the scalable web application from scratch. Implement real-time features with low latency. Ensure the UI is mobile-responsive and highly intuitive. Handle database architecture (SQL or NoSQL) to manage large volumes of messages

    €419 Average bid
    €419 Offre moyenne
    34 offres

    We’re a Gurgaon-based startup building a conversational-first AI product (not a ChatGPT wrapper). We’re looking for two experienced freelancers to help us build an MVP. - Role 1: Backend / AI Engineer (Freelance) Commitment: 25–30 hrs/week Required Skills Python (FastAPI) Node.js (Express / NestJS) PostgreSQL Neo4j or strong graph concepts LLM API integration (OpenAI / Azure / Claude) REST APIs, Docker Responsibilities Build backend services & APIs Implement AI-driven logic Work with graph-based relationships Integrate LLMs cleanly Weekly progress demos - Role 2: Frontend / React Native Engineer (Freelance) Commitment: 15–20 hrs/week Required Skills React Native TypeScript API integration Chat / conversational UI experience Mobile U...

    €8 / hr Average bid
    €8 / hr Offre moyenne
    30 offres