UX/UI Designer Senior – Expert Figma & Design System @ Retirement Sector @ Paris

Project overview

Mission freelance · Paris 12e · Hybride

Context and challenges

As part of strengthening its User Experience department, a major player in the complementary retirement sector is looking for a Senior UX/UI Designer with strong expertise in user interface (UI) design.

The organization offers digital services for individuals and businesses within a Retirement Product Department.

The consultant will join a team of 12 people, structured around four areas:

The mission will primarily focus on the two front-office environments, with a transverse role in human-machine interface (HMI) design and production.

The priority challenge is mastering UI Design. Participation in UX research and customer studies may be considered depending on the consultant's ability to understand and address complex business issues.

Detailed missions

Depending on the consultant's experience and understanding of complex business issues:

Technical and methodological stack

Domain

Expected Skills

Design Tool

Figma – essential mastery

UI Design

Wireframes, mockups, prototyping, HMI design

Design System

Components, patterns, Atomic Design, modular design

Web Design

Responsive Design, adaptive interfaces, UI standards

Accessibility

Knowledge of digital accessibility rules

Technical Environment

Understanding of web interface development principles and constraints

Methodology

Agile, documentation, UI process structuring

UX Research (bonus)

Qualitative and quantitative studies, results presentation

Mission Modalities

Mandatory Start Date

November 23, 2026

• Individual Front-office
• Business Front-office
• Transverse Back-office
• Web Analytics
• UI Design and Production
• Design wireframes, mockups, and interactive prototypes using Figma, based on the existing Design System.
• Consider technical feasibility constraints from the design stage.
• Design robust, responsive, and adaptive interfaces suitable for different screen formats and consultation contexts.
• Apply UI design standards: visual hierarchy, readability, affordance, and interaction consistency.
• Produce clear, documented UI deliverables that are directly usable by stakeholders.
• Design System Evolution and Maintenance
• Contribute to the evolution of the Design System to ensure visual consistency of digital products.
• Structure, maintain, and evolve UI assets and processes within a systemic design logic.
• Utilize modular design approaches: Atomic Design, patterns, and reusable components.
• Ensure the quality, consistency, maintainability, and ease of evolution of deliverables.
• Ensure compliance with design standards, practices, and best practices.
• Collaboration and Continuous Improvement
• Actively participate in design discussions prior to projects.
• Provide critical, reasoned, and solution-oriented feedback.
• Constructively challenge proposals while respecting technical constraints, project frameworks, and collective decisions.
• Explain, justify, and document UI design choices.
• Collaborate with various stakeholders in an Agile environment.
• UX Research and User Studies (optional)
• Conduct qualitative and/or quantitative customer studies.
• Analyze user needs, behaviors, and usage patterns.
• Present study results using the organization's internal formats.

Project details

Paris 12e

Contract Duration

1 year, renewable 3 times

Estimated workload

210 man-days

Schedule

5 days/week

On-site presence

3 days/week

Intervention mode: Staff augmentation, within the framework of a framework contract.

Travel: No regular travel planned. Occasional interventions at other sites in France remain possible, with reimbursement of actual expenses upon presentation of receipts according to contractual rates.

• Start: flexible
• Remote: hybrid
• Location: Paris, France, FR
• Rate: 56-63 EUR/h
• Languages: French