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César Hernandez AlvarezCH

César Hernandez Alvarez

Web and Scientific Application Developer

€400/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About César

Do you want to transform your data into added value through robust and tailor-made solutions, whether in imaging or web development?

I will guide you from idea to delivery, ensuring reliable results, structured deliverables, and clear communication.

What I offer you:

Computer Vision and Image Processing:
- Creation of image processing pipelines, including preprocessing, enhancement, segmentation, feature extraction.
- Development of custom algorithms for complex image analysis, in Python (OpenCV, scikit-image).
- Deep learning models for segmentation, reconstruction, and classification (U-Net, ResNet, PyTorch).
- Optimization and deployment of your algorithms into structured Python libraries or automated workflows.

Web Development:
- Creation of modern web applications with Svelte, responsive design, reusable components.
- Integration of computer vision or AI pipelines into interactive web interfaces.
- Setup of databases and backend structuring for your data-driven projects.

What sets me apart:
- Scientific rigor (PhD in optical imaging) combined with technical communication skills to facilitate your decisions.
- Experience in applied R&D and product-oriented projects, with clear documentation and educational visualizations.
- Dual expertise in image processing / web development, allowing you to have a single point of contact for the entire pipeline, from data acquisition to exploitation via a web interface.
- Adaptability, pedagogical approach, structured work, and autonomy in mission execution.

Technologies:
- Python, C++, OpenCV, scikit-image, PyTorch, TensorFlow, Keras, GitHub, HTML, CSS, JS, Svelte.

Do you have a project in computer vision, AI, or web development? Contact me so we can define together the most suitable solution for your needs.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • French

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • Queen Mary University of London
    Researcher
    RESEARCH
    October 2019 - April 2025 (5 years and 7 months)
    Londres, United Kingdom
    • Development of Deep Learning models for single-shot optical imaging, improving the generalization accuracy of reconstruction using Fourier information of the object.
    • Design and optimization of phase retrieval algorithms using particle swarm optimization, reducing computational cost and eliminating manual parameter tuning.
    • Preprocessing and feature extraction of speckle images, improving model performance for unseen objects.
    • Publication in Optics Laser Technology (April 2023).
    Optique Traitement d'image Python Deep Learning Recherche scientifique
  • Queen Mary University of London
    Teaching Assistant
    EDUCATION AND E-LEARNING
    September 2021 - August 2023 (1 year and 11 months)
    Londres, United Kingdom
    • Teaching Measurement & Instrumentation (Servomotor Control), Mathematical Modeling (Python SimPy), and Motion Analysis (C++).
    • Development of educational modules in Python for dynamic systems modeling and image processing.
    • Mentoring undergraduate students, improving the efficiency of lab sessions.
    Scipy Python C/C++ Formation Electronique analogique
  • Tecnológico de Monterrey
    R&D Engineer
    RESEARCH
    August 2017 - January 2018 (6 months)
    Guadalajara, Mexico
    • Design of an eye-tracking system in C# and Visual Studio for gaze detection.
    • Integration of OpenCVsharp, achieving 97.1% tracking accuracy.
    OpenCV Programmation C# eye tracking UI/UX Design

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Education

  • Doctorat en Ingénierie Médicale
    Queen Mary University of London
    2024
    Doctorat en Ingénierie Médicale
  • Licence en Ingénierie Médicale
    Universidad Politécnica de Sinaloa
    2018
    Licence en Ingénierie Médicale

Skill set

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