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Guillaume NicolasGN

Guillaume Nicolas

✅ PHP BackEnd Developer - FullStack

€400/day
32 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Guillaume

My strong expertise of over 8 years, acquired through project experience, is a significant asset in resolving complex issues faced by any company.

Here are the areas where I can provide you with an advantage in your web adventure:
✔ Back-end Development: Expert Native PHP | Custom Framework
✔ Database Management: MySQL | PostgreSQL | HeidiSQL | MS SQL
✔ Web Security | Best Practices
✔ Domain Management | Server Hosting
✔ SEO Optimization | Google Analytics | A/B testing
✔ Web Integration: HTML5 | CSS3 | Native JS | Svelte
✔ Custom Responsive Design Creation: Bootstrap
✔ Content Management: Custom Framework

If your project falls within my area of expertise, I would be very pleased to help you bring it to fruition.

My portfolio:
✔ gnicolas.com

Currently responsible for the website:
✔ atelierdefamille.fr
✔ morin-medecinedoucechinoise.com
✔ abs-group.com
✔ orbisbreath.io
  • English

    Fluent

  • French

    Native or bilingual

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

Experience

  • ATELIER DE FAMILLE
    Backend Maintenance Manager
    RETAIL (SMALL BUSINESS)
    August 2020 - Today (5 years and 10 months)
    ✔ Test environment setup
    ✔ Versioning system implementation + automatic code backup
    ✔ Various SEO optimizations
    ✔ Page de-indexing + No-follow no-index
    ✔ Native PHP backend modifications
    ✔ Payment page modification + improvement proposal for the team
    ✔ Emergency interventions
    -> Site down
    -> Site-wide payment system
    -> Attack on contact page + security reinforcement
    -> Data table repair
    PHP Back-end Development Web Development API
  • EKIM
    Native PHP Backend Developer
    MECHANICAL ENGINEERING
    September 2020 - February 2021 (5 months)
    ✔ Custom Native PHP Framework
    ✔ Existing code optimization
    -> Transitioning the system to static (OOP)
    -> Algorithm optimization
    -> SQL query optimization
    ✔ Creation of a complex and fast architecture, with one watchword: scalability
    ✔ Development of new features in direct collaboration with the front-end team
    ✔ Strong communication using the agile methodology
    Native PHP PHP Back-end Development Web Development Development Agile methodology Git
  • Else Care - Carenity
    Malt logoOn Malt
    PHP Library Development
    HEALTH AND WELLNESS
    May 2020 - June 2020 (1 month)
    Development of PHP libraries related to the Sendinblue mailing API
    ✔ Creation of internal libraries for sending emails via the Sendinblue API
    ✔ Implementation of sending 6 different emails
    ✔ Design and implementation of a multiple error management system
    ✔ Training of new staff on the project
    ✔ Documentation writing
    PHP Back-end Development Development Codeigniter API MySQL Web Development

Reviews

5.0

Out of 20 ratings

D

Davy

SAS TLG

Reviewed on 12/28/2022

Mission completed on time exactly as planned in the quote. It's very pleasant to work with someone who is interested in the project and suggests solutions to improve it.
P

Pierre

ATELIER DE FAMILLE

Reviewed on 4/21/2021

Guillaume is very reliable and communicates very well with the teams. He respects deadlines and can intervene in emergencies if necessary. I highly recommend Guillaume.

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Education

  • Web Integrator Developer
    ECE Paris
    2018
    900 heures de formation - Html 5 - Css 3 - Php 5.x/7.x - API - Symphony - Laravel - MySQL - Javascript - Wordpress - Shopify

Certifications

  • ECE Paris
    CTI
    2018
    Development Back-end Development MySQL PHP API Web Development
  • ECE Paris
    CTI
    2018
    Development CSS Front-end Development HTML5 Wordpress JavaScript Bootstrap HTML Web Development CSS3

Skill set

Categories