Senior Product Designer (Remote, Portugal)

About the role

Fluxon is looking for a Senior Product Designer to lead end‑to‑end design on ambitious, AI‑driven projects. You will work directly with founders and product leads, shaping both the why and the how of the solutions we deliver for high‑profile clients such as OpenAI, Anthropic, Stripe, Walmart and Google.

Key responsibilities

• Partner with founders, product leads and stakeholders to translate business goals into compelling user experiences.
• Own the full design lifecycle—from discovery and research to interaction design and production‑ready execution.
• Balance user needs, technical constraints and business objectives, making informed trade‑offs.
• Collaborate closely with clients, product managers and engineers to set direction and ship high‑quality work.
• Contribute a point of view on design craft, process and emerging trends.

Required profile

• Proven experience leading product design from strategy through to production‑ready delivery.
• Strong judgment on when to dive deep into research versus moving quickly.
• Excellent communication and presentation skills, comfortable presenting to clients.
• Ability to manage expectations, navigate disagreement and keep projects on track.

Required skills

• UX research and discovery
• Interaction design
• User testing and accessibility
• Visual design (layout, typography, iconography, color, motion)