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Théo SmondackTS

Théo Smondack

Fullstack Developer React.Js Node.Js

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Théo

Need afullstack developerto strengthen your team?
Looking to go digital by developing a **website**, a **SaaS**, or a **web and mobile application**?
Look no further!

With 5 years of experience, I am now a fullstack developer, specializing inJavaScript/TypeScripttechnologies such as **Next.Js / React.Js / Node.Js**.

In my career, I've had the opportunity to work for all types of clients, from large corporations to smaller structures:
- Emeria Technologies
- Unilever
- Dior
- Parisot Industrie (leader in French furniture manufacturing)
- G7
- Toshiba

I place a strong emphasis onlistening**, **communication**, and **transparency**, which are essential for me to successfully complete your project. That's why I am committed to being **proactiveon your project's progress by organizing **daily meetings/reports**, in order to build a strong relationship of trust with you. 👍🏼



**I can assist with your web projects for**:

- Assistance in web project design 👷🏼‍♂️
- Web application development 💻
- Next.Js / React.Js / Node.Js development 🛠️
- Next.Js / Node.Js API development (Express.Js) 🏗️
- Database management (SQL/NoSQL) 📊
- Strengthening your development team 👨🏼‍💻

🧰 **Technical Stack**:
- Next.Js App Router / Next.Js Page Router
- React.Js
- React Query, React Hook Form, React Router
- Node.Js
- Node cron-jobs
- Express.Js
-JavaScript/TypeScript
- Prisma
- TailwindCSS
- MySQL / SQL/PostgreSQL/MariaDB
- MongoDB
- Git
- CI/CD
- Docker
- ESLint / Prettier

**Soft skills**:

- Clean code
- Documentation
- Pair-programming
- Code review
- Communication

Looking forward to meeting you to solve your various challenges. 🚀

Want to discuss it? Don't hesitate to contact me, I promise to respond to your request as soon as possible. 📩
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Toulouse (up to 50km), Marseille (up to 50km)

Experience

  • Emeria Technologies
    Fullstack Developer
    REAL ESTATE
    May 2025 - Today (1 year and 3 months)
    Paris, France
    Front-end support on the Millenium real estate management platform (Foncia): participation in the build of the rental management closing module, and accessibility mission on the MyFoncia customer portal (≈ 2 million connections).
    ▪ Participation in the build of the rental management closing (GL) module of the real estate management platform
    ▪ Development of complex front-end features and forms (creation and editing of business objects, PATCH update operations)
    ▪ Implementation of ahexagonal architecture (clean architecture)on the back-end withNestJSanduse cases
    ▪ Progressive migration of the interface fromMaterial UItoTailwindCSS
    ▪ Integration of data from multiple sources (**PostgreSQL**, **MongoDB**, **Snowflake**)
    ▪ Improvement ofaccessibility (i11y)for the high-traffic MyFoncia customer portal (large volumes: 2 million connections) and raising team awareness on best practices
    ▪ Integration ofFigmamockups, responsive design, andend-to-endtests (**Cypress**, **Playwright**)
    ▪ Code reviews, healthy codebase (SOLID), GitLab CI/CD, agile daily stand-ups, Confluence documentation, and Jira board

    Stack: React.js NestJS TypeScript Hexagonal Architecture (use cases) React Query (Tanstack) TailwindCSS
    Material UI ViteJs Jest Cypress Playwright PostgreSQL MongoDB Snowflake GitLab CI/CD Monorepo Microservices
    AWS EC2
    React.js Node.js NestJs MongoDB GraphQL
  • G7 Taxis
    Full Stack Developer
    TRANSPORTATION
    March 2024 - January 2025 (10 months)
    Neuilly-sur-Seine, France
    ▪ Design and full development of the solution and its back office; team reinforcement and scoping
    ▪ Mobile-first development withServer Side Renderingand writing server actions (**Next.js App Router**)
    ▪ Writing reusableReactcomponents and using adesign system
    ▪ Management of authentication,PostgreSQLdatabase,DrizzleORM,S3bucket on MinIO
    ▪ Integration ofexternal APIs (client API and Google Maps API)andFigma (headless)mockups
    ▪ Form validation (Valibot),SQL transactions(data prioritization and integrity), backward compatibility with existing systems
    ▪ Code reviews, PO/client exchanges, production deployment, Git/GitLab, CI/CD

    Stack: React.js Next.js 14 - App Router Axios Valibot React Query (Tanstack) Lucia RadixUI TailwindCSS**ShadcnUI PostgreSQL Drizzle MinIO / S3 Bucket Docker REST API Google Maps API GitLab CI/CD**
    Next.js PostgreSQL TailwindCSS AWS S3 React.js
  • Christian Dior Couture
    Front-end Developer
    LUXURY GOODS
    January 2024 - March 2024 (2 months)
    Puteaux, France
    ▪ Front-end development, state management withReduxand asynchronous API flow orchestration withRedux-Saga (Axios)
    ▪ Development of evolution batches and front-end maintenance
    ▪ Integration of UI components (**AntDesign**), form validation (**Joi**), front-end PDF document integration
    ▪ Writing reusableReactcomponents, using adesign system**, **S3bucket on MinIO
    ▪ Integration ofFigmamockups, code reviews, production deployment, GitLab CI/CD

    Stack: React.js Redux Redux-Saga Axios Joi AntDesign MinIO / S3 Bucket Docker REST API GitLab CI/CD
    Redux.js React.js Docker API Figma

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Education

  • Master, Lead Développement
    ESIEE-IT
    Master, Lead Développement
  • Bachelor, Développeur web
    Ecole IRIS
    Bachelor, Développeur web

Skill set

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