David Jan Mercado

Product and Design Leader

Salary / Daily rate

Paris, France

Freelance

Can come onsite

Skills

Product ManagementDesign ThinkingUX Product DesignFrontend DevelopmentLLMs / Large language modelsProduct StrategyProduct OwnershipDesign SystemGitHubScrumJiraIllustrationUI Product DesignVisual Identity

Languages

English (Native)FrenchSpanish

About me

Intro

Product leader with 8+ years in product design and product management. Led development of Giskard Hub for LLM testing and AI governance platforms, as well as fraud detection tools at Linkurious. Expert in product strategy, user research, and translating complex AI requirements into user-friendly solutions for regulatory compliance.

Links

Work experience

Senior Product Designer

FreelanceFreelance

Mar 2025 - Present

1 year 8 months

Paris, France

Recent projects include leading the end-to-end design and launch of a cross-platform B2C app (Android & iOS) that connects coaches and players; conducting user interviews to understand market needs and shape the MVP; and optimizing the user experience of a tennis matchmaking app using feedback and key performance metrics.

Giskard

Mar 2024 - Feb 2025

1 year

Paris, France

Product Manager

May 2024 - Feb 2025

10 months

Paris, France

• Product Lead for the LLM Hub, the startup’s core B2B product for evaluating Large Language Models (LLMs), taking it from concept to launch. Collaborated closely with the co-founders, research scientists, engineers, and stakeholders. Collected continuous customer feedback, resulting in onboarding three clients by the end of 2024. • Took ownership of the AI compliance platform, a B2B tool for governance professionals to ensure regulatory compliance of AI applications. Designed and developed the product while engaging with policy experts to define the problem space. Built the Go-to-Market strategy, leading to the onboarding of two design partners by the end of 2024.

Senior Product Designer

Mar 2024 - May 2024

3 months

Paris, France

• Redesigned the critical components of the LLM Hub based on user feedback and testing. • Led the UX revamp of the Retrieval Augmented Generation (RAG) Evaluation Library, improving usability for developers and increasing adoption among open-source contributors.

Product Designer

Linkurious

Oct 2020 - Mar 2024

3 years 6 months

Paris, France

• Lead Designer for the Explore Squad that tackled challenges on the visualization and admin pages of the app, a graph visualization software for identifying fraud and money laundering schemes. • Worked in agile squads with PMs and engineers to develop the roadmap for Spaces, a major release promoting collaborative workflows. • Led the design system initiative to create scalable UI components and improve product and engineering workflows.

User Experience Consultant

Eugenie.aiFreelance

Jul 2018 - May 2022

3 years 11 months

Remote

• Designed and validated the MVP for an industrial analytics platform using AI for anomaly detection. • Conducted user interviews and usability testing to iterate rapidly and secure Proof-of-Concept (POC) contracts. • Coordinated with stakeholders and external partners to align product branding and marketing efforts.

User Experience Designer

Buildrz

Sep 2016 - Oct 2020

4 years 2 months

Paris Area, France

• First designer in a startup environment and worked closely with the CEO and CTO to improve the product. Led UX research, design, and prototyping for a 3D simulation app used by architects and real estate developers. • Advocated for inclusive design and improved cross-cultural team collaboration through constant communication.

Researcher

Télécom Paris

Apr 2015 - Oct 2015

7 months

Paris, France

Conducted research on human-agent interactions, prototyped large display interfaces, and led user testing sessions.

Junior Game Progammer

Gameloft

Sep 2013 - May 2014

9 months

Makati City, Metro Manila, Philippines

Worked on iOS game development, focusing on performance optimization and UI integration.


Education

HEC Paris

Executive MSc, Innovation and Entrepreneurship

2024 - 2025

1 year 7 months

Activities and societies: Tennis Club, Jazz Club

Paris-Sud University (Paris XI)

Master of Science - MS

2014 - 2015

2 years

University of Asia and the Pacific

Bachelor of Science (BS)

2008 - 2012

5 years

Activities and societies: Arts Club, Junior Networkers Society

Portfolio

How the Hub ensures AI applications are safe and robust

How Spaces can augment collaboration in teams

How Clay Crew brings the tennis community together

The best place to find your next move

© 2026. All Rights Reserved.