Researcher, systems-thinker, quiet perfectionist.

I'm Ava Reyes — the designer behind Flux. For nine years I've helped product teams turn ambiguity into experiences that feel obvious.

Headshot of Ava Reyes, senior UX and product designer
My story

From psychology lab to product teams.

I started out studying how people make decisions — running usability sessions and watching where good intentions met confusing interfaces. That curiosity never left; it just moved into product design, where understanding behaviour is the difference between a tool people tolerate and one they trust.

I've led design at two venture-backed startups, built a design system from scratch, and shipped products used by millions. In 2021 I started working independently as Flux so I could partner with a small number of teams at a time and stay hands-on from research through ship.

When I'm not designing, you'll find me running long trails, sketching wireframes in tiny notebooks, and over-analysing the onboarding of every app I download.

Skills & tools

How I work, and what I work with.

Disciplines

  • UX research — interviews, usability testing, synthesis
  • Product & UI design — flows, IA, high-fidelity screens
  • Design systems & component libraries
  • Prototyping & interaction design
  • Accessibility & inclusive design (WCAG AA)

Tools

  • Figma
  • FigJam
  • Framer
  • ProtoPie
  • Maze
  • Dovetail
  • Storybook
  • Notion
  • Linear
  • Webflow
Experience

Where I've worked.

  1. 2021 — Present

    Independent Product Designer

    Flux · Lisbon & Remote

    Partnering with seed to Series B teams on product strategy, UX research, end-to-end design and design systems. 40+ projects shipped across fintech, health and SaaS.

  2. 2018 — 2021

    Lead Product Designer

    Northwind Labs

    Grew the design practice from 1 to 6, established the company-wide design system, and led the mobile redesign that doubled new-user activation.

  3. 2016 — 2018

    Product Designer

    Beacon

    Owned core flows for a consumer app reaching 2M+ users, driving research, prototyping and engineering hand-off end to end.

  4. 2015 — 2016

    UX Researcher

    Atlas Studio

    Ran usability studies and turned messy interview data into clear, actionable design direction for early-stage clients across Europe.

What I believe

Principles that guide the work.

01

Clarity over cleverness

The best interface is the one nobody has to think about. I design for understanding first.

02

Evidence over opinion

Research settles debates. I bring users into the room so the right decision is the obvious one.

03

Systems, not screens

One-off screens age fast. I build patterns and tokens that scale long after launch.

04

Accessible by default

Inclusive design isn't a phase at the end. It's how I work from the first wireframe.

05

Close to the work

I take few clients so I can stay hands-on from first interview to final hand-off.

06

Ship, then sharpen

Real products beat perfect prototypes. I design to learn, then iterate quickly.

Let's make something clear.

If you're building a product that deserves real research and craft, I'd love to hear about it.