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Mohamed KonateMK

Mohamed Konate

Supermalter

Web Developer | React.js | Next.js | Node.js

€500/day
7 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mohamed

React.js | Next.js | Node.js Web Developer (8 years of experience) 💥


Does your product need to go further: new features,AIintegration, scaling up?

I step in to transform your ideas into concrete, reliable, and scalable solutions.
➡ Creation of modern interfaces withReact.js&Next.js
➡ Robust backend development inNode.js
➡ Integration ofgenerative AI(OpenAI,LangChain) to enhance your functionalities

For several years, I have been supporting startups and established companies on ambitious web projects:

Development of high-performing and scalable Web and SaaS Applications

E-commerce platforms and business back-offices

CustomAIassistants (chatbots, automation, data exploitation)

In every mission, I quickly integrate into the team, maintain a consistent delivery pace, and guaranteemaintainableand documentedcode**. My goal: to help you save time, improve user experience, and generate new **business opportunities.

Technical Stack: React.js, Next.js, Node.js, TypeScript, OpenAI, LangChain, Supabase, n8n, Stripe, Prisma, PostgreSQL, Clean Architecture

📩 Need to launch a web project or strengthen your front-end/back-end team with a web developer?

Let's talk: I'm available for an initial video call to clarify your challenges and define a concrete approach. Quick response guaranteed.
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • L’As de la route
    Malt logoOn Malt
    Web Developer | React.js | Next.js
    EDUCATION AND E-LEARNING
    April 2026 - April 2026
    Objective: To intervene on a SaaS e-learning platform in production (online driving school) to resolve critical bugs, optimize performance, and improve user experience.

    Achievements:
    • Resolution of critical production bugs throughSQL PostgreSQL(Supabase) migrations: restoration of deletedSQLfunctions that blocked the upload of educational content and caused users to lose their paidStripesubscriptions
    • Optimization of the training course loading performance by refactoringPostgreSQLqueries to eliminate redundant calls to the Supabase database
    • Improvement of mobile experience withReact.jsandTailwindCSS**: fixing an iOS full-screen bug on H5P interactive exercises using a responsive **CSSapproach
    • Implementation of instant visual feedback (loading states) on allReact.jsnavigation buttons on the platform, inTypeScriptwith the latestNext.jsAPIs
    • Setting up anSQLscript (PostgreSQL/Supabase) to manually activate aStripesubscription for a user, with automatic verification that the subscription works correctly from end to end
    • Intervention on a complex Turborepo monorepo codebase (1700+ commits, 16 packages, **Next.js**, **React.js**, **TypeScript**, **Supabase**, **Stripe**)
    Technical Stack:Next.js, React.js, TypeScript, TailwindCSS, shadcn/ui, Supabase (PostgreSQL, RLS, Auth), Drizzle ORM, Stripe, H5P, Turborepo
    React.js Next.js Typescript Web Development JavaScript
  • GROUPE RESOCOM
    Web Developer | React.js | Next.js | Node.js
    DIGITAL AND IT
    November 2025 - Today (7 months)
    Paris, France
    Objective: To develop a complete B2B SaaS platform for contract management, electronic signatures, and recurring payments.

    Achievements:
    - Full-stackNext.js**, **React.jsapplication with App Router architecture, 30+REST APIroutes, and role system
    - CompleteStripeintegration: one-time payments, subscriptions, webhooks, and payment method management
    -Yousignelectronic signature workflow (creation, sending, tracking, callbacks)
    - Dynamic PDF generation (contracts, amendments) withReact-PDF
    - Secure NextAuth.js authentication ( **JWT**, credentials, middleware roles-based)
    -PostgreSQLdatabase modeling with Prisma ORM and migrations
    - Analytics dashboards with Chart.js, Recharts
    - Service marketplace with configurable pricing
    - Audit log system for GDPR/DORA compliance
    -GitLab**CI/CD** pipeline +Dockercontainerization
    - Jest unit tests andshadcn/ui +TailwindCSScomponents

    Technical Stack:Next.js**, **React.js**, **TypeScript**, **TailwindCSS**, **shadcn/ui**, **Prisma**, **PostgreSQL**, **Stripe**, **Yousign**, **NextAuth.js**, **Resend**, **Chart.js**, **Recharts**, **Jest**, **Docker**, **GitLab CI
    React.js Next.js Node.js Typescript React / Next.js
  • Webview Digital
    Web Developer | React.js | Next.js | Svelte
    DIGITAL AND IT
    March 2025 - October 2025 (7 months)
    Paris, France
    Objective**: Develop **SaaSplatforms withAIandautomationsto accelerate digital transformation.



    **Achievements**:
    • CompleteSaaSplatform (React.js/Next.js/TypeScript) with secure auth, subscriptions, andStripepayments
    • Automated workflows (n8n): **scraping**, lead generation, personalized emails
    *AImodules (OpenAI/LangChain) for content generation and document analysis
    • Interactive dashboards (Svelte.js) with real-time KPI tracking
    • Performance optimization (-40% loading time) and E2E tests (Playwright)
    • Collaboration with product team on AI and automation features


    **Technical Stack**: Next.js, React.js, TypeScript, Svelte.js, n8n, OpenAI, LangChain, Stripe, Playwright, TailwindCSS
    Next.js React.js Langchain OpenAI Svelte

Reviews

5.0

Out of 2 ratings

SambaS

Samba

Excellent développeur ! - L’As de la route

Reviewed on 4/15/2026

Mohamed perfectly fulfilled his mission and more, he audited and fixed bugs on my elearning platform and made some improvements. He is very attentive, knows how to adapt to unforeseen events, but above all, he has a very good vision of the product and the client, which allows him to give very relevant advice. I would be delighted to collaborate with him again! Thank you again Samba - L’AS de la route
A

Alexis

UGAP x AMOE-TMA x SGDSN

Reviewed on 8/28/2025

Mohamed fully met our expectations within the expected timeframe. His skills were adapted to our technical stack. I would be delighted to work with him again.

Recommendations

Tony DucheminTD
Lucien ArbieuLA
Fahari H.FH
+2
Tony Duchemin and 4 other people have recommended Mohamed

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Education

  • Multimedia Project Manager - Development
    IESA Multimedia
    2018

Skill set

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