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Mohsan ButtMB

Mohsan Butt

React | Node | AI | Next.js Developer

€600/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mohsan

Next.js | React | Node.js | TypeScript | Python | Fullstack & AI Developer


Is your application reaching its technical or business limits?
I develop high-performance **Next.js and React solutions**, designed to transform concrete business needs into **robust, scalable, and production-ready products**.

A **Senior Fullstack Developer (+10 years of experience)**, I design custom web applications, SaaS platforms, and AI-integrated solutions with a 360° vision**: technical, product, user, and business constraints.
I speak thelanguage of business teamsand translate it into reliable and maintainable architectures.

Specializing in Next.js, React, Node.js, TypeScript, and Python, I work across the entire stack, from design to production.

Recent Achievements

Simple Nest - StartupAirbnb Concierge & AI Closing
Next.js, Python

Radio France– Audio AI Project Automated Transcription
RAG Architecture**, Python, Fastify, **KubernetesDeployment

Dsm-firmenich– Equipment Monitoring SaaS
Business SaaS platform for industrial equipment analysis and monitoring

Syensqo– Scientific SaaS
Dashboards, scalable architecture, TDD, DevOps

Le Figaro– High-Traffic Media
Front-end performance, software quality, CI/CD

24 Sèvres
Front-end Redesign, Performance, Delivery

Approach & Services

**Frontend**: Next.js, React, TypeScript (performance, SEO, UX)

**Backend**: Node.js, NestJS, Python, REST APIs

**AI**: NLP, transcription, **RAG**, semantic search

**DevOps**: Kubernetes, CI/CD, AWS, GCP


SaaSDevelopment |Next.js / React|Node.js / Python|
AI & RAGIntegration | Migration & Redesign | Clean Architecture | TDD

**→ Contact me for a reliable, scalable, and business-oriented solution.
  • French

    Native or bilingual

  • English

    Fluent

  • Hindi

    Native or bilingual

  • Urdu

    Native or bilingual

Can work on-site
Paris (up to 50km), Marseille (up to 50km), Lyon (up to 50km), Montpellier (up to 50km), Lille (up to 50km)

Experience

  • Radio France
    React / Node / Python Developer
    PRESS AND MEDIA
    October 2025 - January 2026 (3 months)
    Paris, France
    Full Stack React / Node.js / Python Developer
    Freelance Mission – Advanced AI Project

    Context
    Participation in modernizing digital tools around audio content and broadcasts, combining full-stack development with artificial intelligence solutions (transcription, semantic search, editorial exploitation).

    Responsibilities and Achievements

    Implementation of a real-time audio transcription system from live streams, based on Python and WhisperX.

    Development of Node.js backend services to orchestrate processes, expose APIs, and connect business tools.

    Continuous improvement of transcription quality (time alignment, diarization, overall accuracy).

    Design and implementation of a RAG (Retrieval-Augmented Generation) architecture to leverage transcriptions and broadcast content.

    Indexing and semantic search of audio content and its metadata via Python APIs.

    Integration on the user interface side with React for content consultation and utilization.

    Implementation of RAG quality evaluation and improvement methods (relevance tests, response consistency, source quality).

    Use of frameworks and methodologies like RAGAS, DeepEval, and prompt testing to optimize system performance.

    Deployment and operation of services in a Kubernetes environment, with a scalable and production-oriented architecture.

    Technical Stack

    Frontend: React
    Backend: Node.js, Python, REST APIs
    AI and NLP: WhisperX, RAG, RAGAS, DeepEval
    Infrastructure: Kubernetes
    Node.js Python React.js Frontend Developer
  • Syensqo
    Front-end Web Developer Next.js | React.js | Typescript | Node.js
    CHEMICAL
    May 2024 - Today (2 years and 3 months)
    Paris, France
    Front-end Developer Next.js | React.js | Typescript | Node.js

    → Mission Objective: Design a SaaS platform for centralizing and visualizing scientific data from all laboratories through an interactive, scalable web interface ready for AI modules.

    → Achievements:

    Implementation of cloud infrastructure with Terraform (environments, networks, deployments) for a robust and reproducible foundation.

    Development of the Next.js application using Clean Architecture, driven by tests (TDD) to ensure maintainability and quality.

    Integration of automated CI/CD (build, tests, deployments) and DevOps tooling to accelerate production releases.

    Implementation of advanced data visualizations (dashboards, interactive charts) to facilitate analysis and decision-making.

    Architecture designed for "extensibility" to eventually integrate AI modules (analysis, insight generation).

    → Technical Stack: Next.js, React.js, Nest.js, Node.js, Terraform, CI/CD, data visualization libraries, AI, DDD, Clean Architecture
    React.js Node.js Next.js Front-End Development Web Developer
  • LE FIGARO
    Front-end Web Developer Next.js | React.js | Typescript | Node.js
    ENTERTAINMENT AND LEISURE
    March 2020 - January 2024 (3 years and 10 months)
    Paris, France
    Web Developer Next.js | React.js | Typescript | Node.js

    → Mission Objective: Strengthen team agility and stabilize the front-end platform to accelerate the delivery of high-traffic features.

    → Achievements:

    Implementation of a Kanban workflow to streamline prioritization and reduce WIP.

    Identification of team friction points and operational resolution (roles, rituals, communication).

    Technical stabilization: redesign of the front-end architecture and introduction of end-to-end tests with Cypress.

    Normalization of delivery processes (pipelines, quality criteria) for regular and predictable deployments.

    Adoption of TDD / DDD and Clean Architecture practices to improve maintainability and testability.

    → Technical Stack: Next.js, TypeScript, Cypress, CSS-in-JS (Emotion), Node.js, CI/CD.

    Front-End Developer / Video Product Manager
    Le Figaro — FIGARO Vidéo

    → Mission Objective: Optimize the video ecosystem (playback, publishing, distribution) and ensure the reliability of the delivery chain in a full-remote environment.

    → Achievements:

    Standardization of pipelines (Jenkins/Capistrano) to ensure release reliability.

    Facilitation and cohesion of 100% remote teams (cadences, rituals, documentation).

    Creation of a consolidated documentation base for technical skills and business knowledge.

    Migration of the video provider from Brightcove to JW Player: phased strategy, ensured service continuity.

    Unification of video streams (editorial content, live, replays) within a modernized front-end architecture.

    Infrastructure modernization towards GCP/Kubernetes for scalability and resilience.

    Application of TDD / DDD / Clean Architecture principles on the front-end for long-term quality.

    → Technical Stack: Next.js, TypeScript, Emotion, Firebase, Node.js, Express, Jenkins, Capistrano, GCP, Kubernetes.
    Next.js React.js TypeScript Node.js Web Developer

Recommendations

Victor D.VD
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Vincent VadeVV
Victor D. and 2 other people have recommended Mohsan

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Education

  • Master in Mobility and Connected Objects
    ESGI - Graduate School of Computer Engineering
    2018

Skill set

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