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David SimbaDS

David Simba

Senior Développeur Typescript | React | Node

EUR 550/Tag
Élancourt, FR
3-7 Jahre

Durchschnittliche Reaktionszeit: 1h

Über David

I design modern applications using React, Next.js, Node.js, and TypeScript, and I have a strong UX/UI sensibility thanks to extensive experience in agencies, startups, and entrepreneurship. I have worked on complex architectures: multi-site Next.js, GraphQL APIs, React Native mobile apps, SaaS platforms, Cloud Functions, analytical dashboards, and real-time solutions. I am looking for high-impact projects where I can contribute my expertise, autonomy, and product vision.
  • Französisch

    Muttersprachlich oder zweisprachig

  • Englisch

    Verhandlungssicher

Vor Ort möglich
Élancourt (bis zu 50 km)

Projekt- und Berufserfahrung

  • Zento
    Développeur React JS . Node JS . Typescript
    DIGITALAGENTUREN & IT-CONSULTING
    September 2022 - Heute (3 Jahre und 9 Monate)
    Levallois-Perret, Frankreich
    Front-end Project: Redesign of Provalliance group websites (Jean-Louis David, Franck Provost...)
    Stack : Next.js, TypeScript, Sass, Wordpress Headless, Figma

    • Development of modular React components with hybrid rendering (SSG/SSR)
    • Factorized front-end architecture enabling 7 sites with shared base
    • Integration with headless CMS via REST API with optimized caching strategy
    • Modular SASS structuring (partials, mixins, global variables)
    • Agile SCRUM collaboration (daily, planning, reviews)


    Back-end Project : Back-office REST API (7 brands, 14 prod/recipe variants)
    Stack : Node.js, Express, TypeScript, MongoDB/Mongoose, Passport.js, Firebase FCM, Jenkins, Winston

    • Designed and developed a domain-driven REST API structured into 13 autonomous business components (Auth, Appointment, Loyalty, Notification, Salon), ensuring full modularity and zero cross-domain coupling
    • Implemented multi-strategy authentication using Passport.js
    • Built and maintained critical third-party integrations: Firebase FCM (multi-project push notifications), CRM Aquitem (XML API, MD5 authentication, customer loyalty flows), Pragmatist booking engine with brand-based API versioning (X-Brand, X-Api-Version)
    • Developed strongly typed data models with TypeScript and MongoDB/Mongoose (interfaces + schemas)
    • Engineered a secure and scalable Express middleware stack (helmet, cors, compression, MongoDB session persistence via connect-mongo)
    • Implemented centralized error handling with custom HttpError class and adaptive JSON/HTML responses
    • Built and maintained a full CI/CD pipeline with Jenkins: TypeScript build, artifact versioning (.tar.gz), remote deployment (SCP/SSH), and PM2 process management
    • Delivered and deployed 14 production artifacts (multi-brand × multi-environment architecture)
    • Automated OpenAPI 3.0 documentation generation (swagger-jsdoc + swagger-ui, /api/docs)
    Node.js Next.js Typescript Express MongoDB
  • My Sweet Hotel
    Founder & CEO
    HIGHTECH
    Juni 2021 - Heute (5 Jahre)
    Full Stack Project: Digital solution for hospitality profesionals (Incubated at Schoolab et My Creo)

    Front-end (Web & Mobile Applications)
    Stack : React.js, Bootstrap, React Native, Firebase, Figma

    • Developed a dual client application (Desktop + Mobile) for hospitality staff
    • Built a multi-service platform including: Analytics Dashboard, CRM, Chat, Shift Logbook, Maintenance Log, and Checklists
    • Development of a PWA for guests (Chat, On-demand services, Wake-up, Taxi booking, Room relocation request)
    • Advanced Cloud Functions: notifications, automated emails, scheduled tasks
    • UX/UI design: design system, Figma prototyping
    • Product management: roadmap, user feedback, digital marketing


    Back-end (API & Real-Time Systems)

    Stack : Node.js, TypeScript, Express, GraphQL, MongoDB

    • Designed and developed a scalable backend architecture using GraphQL (typedefs, resolvers, mutations, subscriptions)
    • Implemented secure authentication & authorization (JWT, permission layers, payload validation)
    • Built robust Express middleware pipelines with centralized HTTP error handling
    • Developed real-time features using WebSockets / Socket.IO (live notifications, client state synchronization)
    • Optimized database operations with MongoDB/Mongoose (CRUD, bulkWrite for performance-critical workloads)
    React.js React Native Typescript Node.js GraphQL
  • MEZO
    Développeur Front-end React JS
    DIGITALAGENTUREN & IT-CONSULTING
    September 2020 - Juni 2021 (9 Monate)
    Saint-Ouen-l'Aumône, Frankreich
    Front-end Project: Collaborative platform for photo shooting teams
    Stack : React.js, React-native, PrimeReact, Redux, API Platform, SCRUM

    • Development of advanced dynamic UI features (photo editing with annotations, smooth HD zoom, annotations)
    • Complex state management with Redux
    • Figma integration, Git workflow
    • Agile development (sprints, demos)
    React.js React Native TailwindCSS redux Swagger

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Ausbildung und Abschlüsse

  • Bachelor Application Design & Development
    My Digital School
    2022

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