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Alexandre GuillomeAG

Alexandre Guillome

Web Developer | Next.js | React.js | Typescript

€420/day
1 project
Lille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexandre

◉ A few key points about me ⤵︎

👨‍💻React.js**, **Next.js**, **TypeScriptare my ecosystem
🎓Front-end Developer& co-founder of 2 SaaS
⚙️+15front projects delivered |+10clients

◉ My references ⤵︎

Welya
Focusprod
Frérots de Kanto
Magicbook
Yucatech
Skaly
Aux Corbeaux d'Odin
Seviny

◉ Here are the missions I regularly undertake ⤵︎

React.js | Next.js | Front-end Redesign | Feature Delivery

Taking over blocked or abandoned front-ends (**React.js** / **Next.js**)
Full integrationFigma→ production code
Migration of legacyUIto modern components (**Tailwind** / **TS**)
Accelerating delivery with clean, documented, andscalablecode
Setting up a minimal design system and reusable components
UX/UIOptimization: navigation, forms, key flows, dashboards
Product collaboration: continuous feedback, rapid iterations, full autonomy

Front-end Architecture | Scalability | Product Quality & Reliability

Structuring front-ends & modularReact/Nextarchitecture
Implementing best practices: strict typing, folders, conventions
API Integration& client-side logic (**auth**, **state**, **data-fetching**)
Tests & quality checks on critical flows
UIperformance optimization & loading times
Front-endDeploy & CI(**Vercel** /Supabase/ **Firebase**)
Clean and maintainable code

Do you want to:
- Transform aFigmamockup into a fluid and cleanReact/Next.jsinterface?
- Take over a blockedfront-endto finally deliver a reliable, **modern**, and user-friendly product?
- Make youruser experienceclear, fast, and ready to support your growth?

Available 7 days a week
Response inunder 1 hour
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Dev Engine
    Web Developer
    SOFTWARE PUBLISHING
    January 2022 - Today (4 years and 7 months)
    Lille, France
    I help startups and SMEs unblock their front-end projects so their interfaces become growth drivers, not hindrances.
    I am aReact/Next.jsfront-end developer specializing in rapid unblocking of stagnant projects, taking over legacy code, and delivering modern interfaces that convert.
    I transform your shaky front-end into a reliable, performant, and scalable product.

    Who I target:
    - Early-stage startups with an MVP at 80% but no one to finish the front-end
    - Overwhelmed web agencies that need to absorb a workload spike without blowing up the team
    - SMEs with aging interfaces that hinder internal productivity
    - Decision-makers facing a developer departure or a critical deadline (funding, demo, contract)

    Why me:
    - 3+ years of experience, +15 web projects delivered, +10 clients accompanied
    - Sectors: SaaS, automated prospecting, industrial performance, e-commerce, luxury
    - Co-founder of 2 SaaS products (Focusprod & Yucatech)
    - Atypical background: 6 years in the army → rigor, pressure management, and autonomy gain

    Examples of successes:
    - Unified navigation at Skaly → interface went from 3 fragmented views to 1 fluid screen, import errors reduced
    - E-commerce showcase website for a tavern → clarified booking process, immediate increase in conversions
    - TRS dashboard at Focusprod → real-time visualization adopted by field teams, accelerated decision-making
    - Seviny mockups validated → official development base, enhanced brand image
    React.js Next.js Front-End Development Responsive Integration Typescript
  • Focusprod
    Co-founder and Front-end Developer
    SOFTWARE PUBLISHING
    June 2025 - Today (1 year and 2 months)
    Lille, France
    Results achieved:
    • Fluid and intuitive interface, facilitating data entry and consultation in the field
    • Clear visualization of TRS and causes of loss, enabling faster decisions
    • Easy adoption thanks to a polished user experience, adapted to workshop constraints
    • Recognition of field teams' work, who regain a useful and concrete tool daily
    React.js Next.js Responsive Integration Typescript Front-End Development
  • Frérots de Kanto
    Web Developer | Next.js | React.js | Typescript
    E-COMMERCE
    March 2025 - July 2025 (4 months)
    Lille, France
    → Mission Objective:
    Design and develop a Pokémon card e-commerce platform.

    → Achievements:
    Web platform focused on persuasive UX and custom visual identity: clear copy and reassurance elements to increase trust, perceived quality, and conversion rate.

    Responsive integration, optimized performance, technical SEO (tags, internal linking, schema) to boost organic visibility and sales performance.

    Implementation of a headless CMS (also custom-made and part of another project I co-created) for autonomous content management, operational time savings, and rapid iterations (Products, Blog, and dynamic elements).

    → Technical Stack:
    React.js, Next.js, TypeScript, Tailwind CSS, shadcn/ui.
    Front-End Development Next.js Typescript React.js Web Development

Reviews

5.0

Out of 1 rating

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Education

  • Web Developer
    OpenClassrooms
    2022
  • Application Web Developer Designer - Level 6
    Le Wagon
    2023

Certifications

  • Application Web Developer Designer - Level 6
    Le Wagon
    2024
    Web Integration Typescript React.js Nextjs

Skill set

Categories