Wissal Sahel

-Designed an AI-powered system to automatically detect user sessions with usability issues, increasing detection coverage by 80% and enabling continuous UX monitoring. -Improved ML pipelines used for user behavior analysis, reducing processing time from 3 hours to a few minutes without compromising accuracy. -Identified friction points and usability issues through behavioral analysis and informed the Product Owner of areas requiring prioritization and redesign. -Created personas, user journeys, and wireframes for upcoming features, currently pending user testing before integration into the product roadmap. Keywords: UX Research, Product Design, Data-Driven UX, AI, Usability Analytics, Design Strategy.

Participatory design to support power grid operators in control rooms : -Led over 20 + user interviews and co-design workshops to uncover critical user needs in mission-critical environments (Orange, RTE, SNCF, Dassault Aviation). -Designed and iteratively refined a digital handover tool, positively evaluated by control room operators for its clarity and usability. -Contributed to a bidirectional AI assistant prototype improving situational awareness, and decision making. -Collaborated closely with technical teams to ensure functional alignment between user expectations, interface behavior, and system constraints. -Balanced user needs, tech feasibility, and stakeholder goals—acting as both UX lead and product owner. Keywords: Participatory Design, UX Strategy, Product Thinking, Sprint Collaboration, Critical Systems, Feature Specification.

- Built a humanoid virtual assistant for in-car user interaction using voice/gesture input. - Modeled 3D interactions and built prototypes in Unity. - Conducted usability testing and improved design based on user trust perception metrics. Keywords: UX Prototyping, HCI, User Testing, Concept Design