You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
William SchlegelWS

William Schlegel

🚀 CTO, Lead Dev Fullstack & React (TS)

€750/day
Valmondois, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About William

For several years, I have been a technical director, software architect, Full Stack Lead Dev, particularly in ReactJS and Typescript, but also CEO of startups.

I have developed projects in interactive television, virtual or augmented reality, and in the development of SaaS applications for the environment and greentech, and even hardware and IoT projects.

I make my skills available for all sorts of projects.

I am particularly comfortable in the startup environment in which I have been working for years, but I have also worked for much larger groups like Bayard Presse.

I have good experience in managing outsourced projects with international development teams, particularly in India and for foreign clients. I have also been used to working with remote teams for over 10 years.

I specialize in setting up large-scale SaaS projects, from gathering client needs to delivery and maintenance. I can take a project from the idea stage or pick it up when it is already advanced.

My experience in teaching video games and game design helps me to transmit knowledge and train people who will take over the projects I have worked on. I can train your permanent CTO and help them develop the necessary skills for your project's success.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Valmondois (up to 50km)

Experience

  • IntermarchĂ©
    Lead dev
    E-COMMERCE
    March 2023 - Today (3 years and 3 months)
    Châtillon, France
    Development of Intermarché's e-commerce web application (drive management, games, loyalty programs...)
    I participated in the migration of the application to the latest web technologies such as NextJS (server components and App directory) and Tailwind CSS, replacing Sass.
    I trained and mentored junior developers, particularly through code reviews.
    As a lead, I was responsible for releasing versions.
    The application is used by several million people and generates several billion euros in revenue per year.
    Tech Lead Next.js Git
  • AEXDO
    Co founder & CTO
    ENVIRONMENTAL
    June 2019 - Today (7 years)
    95290 L'Isle-Adam, France
    Aexdo makes soil pollution data understandable for all stakeholders in a real estate project.
    It mainly involves managing data collected from the field and offering different visualizations for users, whether they are technical (engineering firms, architects), work-oriented, or simply need to 'understand' the pollution (legal professionals, for example).
    The bulk of the development is outsourced in India under my supervision, but I take over elements whose quality is insufficient or would require too much explanation, especially for highly technical representations.
    It should be noted that I had no knowledge of this field when the project started.
    CTO Lead Developer Founder
  • Stimshop
    CTO
    INTERNET OF THINGS (IOT)
    October 2015 - Today (10 years and 8 months)
    Paris, France
    Stimshop develops an ultrasonic communication technology compatible with standard equipment like regular speakers or smartphones.
    I joined the team as an investor and CTO and I lead the R&D department. I develop the product development strategy with the CEO and participate in fundraising for R&D.
    I developed the ucheck.in platform for managing licenses, users, content, and connected devices for Stimshop clients.
    CTO Lead Developer

Recommendations

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Engineer, Computer Science
    EFREI Paris
    1991
    Engineer, Computer Science
  • Engineer's degree, computer science
    Ecole d'Ingénieurs des Technologies de l'Information et du Management
    1991
    Engineer's degree, computer science

Skill set

Categories