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Daniel CesarDC

Daniel Cesar

Supermalter

Senior Product Designer

€720/day
7 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Daniel

With 19 years of experience as a UX/UI Product Designer, I have acquired solid expertise in user-centered design and gathering user needs. I am accustomed to working in Agile environments. By working closely with tech and product teams, I participate in defining the discovery strategy and identifying user behaviors and expectations through research methods.

👉 Creation and updating of UX deliverables for each project (user journeys, wireframes, ergonomic specifications, etc.)
👉 Participation in design team rituals
👉 Monitoring and benchmarks
👉 User research, studies, and personas
👉 Definition of discovery strategy and refinement throughout the roadmap
👉 Definition of the research method for user needs and identification of their behaviors and expectations
👉 Creation and updating of UX deliverables such as user journeys, wireframes, and ergonomic specifications
👉 Knowledge of digital accessibility regulations and compliance with iOS and Android guidelines for mobile and television devices
👉 Implementation of research processes and user data analysis to inform design
👉 Creation of mockups and prototypes to evaluate and test design ideas
👉 Design project management, including budget and timeline management
👉 Effective communication of design strategy and design decisions to stakeholders
👉 Mentorship and coaching of other designers
👉 Participation in design review processes to ensure quality and alignment with company objectives
  • Japanese

    Conversational

  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Sanofi - Consumer Experience and Design
    Malt logoOn Malt
    CX / Senior Product Designer
    HEALTH AND WELLNESS
    January 2024 - Today (2 years and 5 months)
    Paris, France
    I design AI-powered tools and experiences in healthcare and pharma that help teams make smarter, faster, and more evidence-based decisions. My focus is on building AI solutions that act as scientific partners rather than just answer engines, guiding users through complex workflows with explainable recommendations and interactive guidance.

    Current Focus:
    I work on projects that integrate AI with human expertise, helping users interpret data, explore insights, and simulate scenarios. The tools I design combine explainable AI, scenario-based guidance, and interactive dialogue to support critical thinking and decision-making in professional environments.

    Core Skills / Contributions:

    Designing AI-driven workflows for complex decision-making

    Explainable AI & human-in-the-loop design principles

    Scenario simulations, guided reasoning, and critical thinking support

    Translating statistical and clinical data into intuitive interfaces

    Co-design workshops and human-centered AI experiences

    Goal:
    To create AI tools that enhance human reasoning, increase trust in automated insights, and empower professionals to make better, evidence-based decisions.
    Agile Method Product Design Art Direction User Interface Design User Experience Design
  • ID4MED
    OkMed - your ally against counterfeit drugs
    HEALTH AND WELLNESS
    March 2021 - Today (5 years and 3 months)
    As a product designer for the OKmed application, my mission is to design and implement an intuitive and aesthetically pleasing user interface to help users verify the authenticity of their medications. This includes defining the brand strategy, creating mockups and prototypes, implementing user testing, and optimizing the final user experience. With knowledge of development challenges to ensure the technical feasibility of my designs and to guarantee that the application meets user needs and expectations. My main goal is to contribute to the creation of a quality application that helps users protect their health by ensuring the authenticity of their medications.
    Ergonomics User Experience Design User Interface Design Product Designer
  • Spinati
    Software Architect
    January 2005 (21 years and 5 months)
    Passionate and entrepreneurial, I am always interested in state-of-the-art technology such as blockchain. I have made many collaborations with agencies and various research initiatives. I learn, idealize, and formalize in multidisciplinary environments by developing digital creations in mainstream companies. The mission assigned to technology goes far beyond the basic function. I seek to optimize the function of a subject and improve their experience. References: M6 (Main national media), CNRS, ELECLERC (Retailer), Arc'Terix (Luxury Sportware).

Reviews

5.0

Out of 2 ratings

M

Margot

Deep Belief

Reviewed on 7/29/2022

Very relevant feedback that helped us move forward and improve the experience! Thank you Daniel!
NadaN

Nada

VERA

Reviewed on 5/25/2022

Excellent performance from Daniel! I can only warmly recommend his services: rigor, listening, and professionalism marked our collaboration. We will not hesitate to call on him again!

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Education

  • Consultant in special effects, digital animation and cinematography
    EESA
    2005
    Consultant en effet spéciaux animation numérique et cinématographique
  • Benjamin Franklin High School
    Baccalauréat
    2003
    Président de l'association art et design

Certifications

Skill set

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