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Pierre-Louis DelcroixPD

Pierre-Louis Delcroix

Supermalter

Fullstack Developer - React.js | Next | Node.js

€600/day
32 projects
Paris, FR
8-15 years

Average response time: 2 hours

Freelancer profile translated to English.
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About Pierre-Louis

Fullstack Developer | Next.js | React.js | TypeScript | Node.js

Do you have aSaaS**, **B2B**, or **startupweb project and are you looking for a developer capable of designing a performant, scalable application tailored to your users?

As afullstack web developerspecializing inReact.js**, **Next.js**, and **Node.js**, I will guide you from the idea to the launch: architecture, **frontendand **backend development**, SEO optimization, and production deployment.

My Experience

👨‍💻 Over 7 years of web development experience on various projects:
  • SaaS Applications (CRM, internal tools, openrouter)
  • Startups with high scalability and time-to-market stakes
  • Showcase websites and landing pages optimized in React.js and Next.js
  • Solutions for large companies with complex environments

What I Offer

  • Modern and responsive frontend interfaces withReact.js&Next.js
  • Robust and secure APIs withNode.js&Nest.js
  • Scalable B2B SaaS applications adapted to the growth challenges of startups and SMEs
  • Optimized SEO & performance to maximize your visibility and conversions

Why Work Together?

  • **Fullstack Expertise**: from frontend to backend to cloud deployment
  • **SaaS, B2B, and Startup Experience**: I understand your business and technical challenges
  • **UX/UI Oriented Approach**: intuitive and performant interfaces
  • **Fluid Collaboration**: clear communication, responsiveness, and rigorous follow-up

📞 Ready to Launch Your Web Project?

Contact me now (**response within 1 hour**) to schedule an initial discussion and see how I can support you from idea to deployment.
  • English

    Fluent

  • French

    Native or bilingual

  • Spanish

    Conversational

Remote only
Primarily works remotely

Experience

  • Avian
    Machine Learning Engineer
    SOFTWARE PUBLISHING
    October 2024 - June 2025 (8 months)
    • World record on DeepSeek R1 FP4 with 303 tokens per second
    • Optimization of MTP head training for DeepSeek R1
    • 20% improvement in token draft acceptance rate, leading to a significant increase in tokens per second
    • Implementation of a workflow to deploy models from Hugging Face
    • Mass scraping for lead generation
    • Setup of infrastructure to link API usage to billing
    Full-stack Development Next.js Pytorch LLM Django
  • Siemens Healthineers
    Research Intern - Deep Learning
    MEDICAL
    March 2024 - September 2024 (7 months)
    Princeton, United States
    Research on super-resolution methods for CT scans
    Work on Photon CT scanner image reconstruction
    Python
  • OneCommerce
    Software Engineer - Internship
    E-COMMERCE
    September 2022 - Today (3 years and 9 months)
    Londres, United Kingdom
    4th-year internship as part of my studies at EPITA.
    Development of a stock centralization platform in Nodejs, integration of Datadog APM, development of an application from scratch in React Native
    Typescript React.js Node.js Google Cloud Big Query

Reviews

4.9

Out of 18 ratings

A

Adryan

Groupe LIP

Reviewed on 10/2/2025

3rd part of the mission with Pierre-Louis. Everything is going well and Pierre-Louis is available to discuss and move the product forward.
R

Roy

Fundamental Education

Reviewed on 9/29/2025

I really enjoyed working with Pierre-Louis. It was simple, effective, no bullshit. Mission completed quickly and successfully. I would work with Pierre-Louis again without hesitation. Roy

Recommendations

Jean-Sébastien K.JK
FU
Jean-Sébastien K. and 1 other person have recommended Pierre-Louis

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Education

  • Engineering Degree
    EPITA
    2024
    Majeure Image - Traitement d'image, Machine Learning, Deep Learning

Skill set

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