What product design services do you offer?

End-to-end product design: research, UX strategy, UI design, design systems, and AI-assisted prototyping. Also design engineering — shipping production-ready code via Cursor, Claude API, and v0.

Do you design SaaS and web applications?

Yes. For web products I cover UX/UI design, Core Web Vitals optimization, on-page SEO architecture, and basic security hardening (CSP, HSTS, referrer policy).

What industries do you specialize in?

Fintech, crypto trading platforms, enterprise SaaS and internal tools, transportation and government digital services, and AI-first products.

What engagement models do you offer?

Full-time embedded roles, contract/fractional (sprint-based), and fixed-scope projects. Remote-first, working with US, UK, and EU clients from Valencia, Spain.

How do you incorporate AI into your design process?

AI is active at every stage: Claude and Miro AI in workshops, Perplexity for research, Otter.ai for user interviews, v0 and Claude API for prototyping, Figma AI and Cursor for UI implementation, and axe DevTools for accessibility testing.

Services — Senior Product Designer for Hire

Capabilities

What I do

◈

Product Design

End-to-end — from discovery and strategy to validated, pixel-perfect UI ready for engineering.

→ User research & synthesis
→ Hi-fi UI design & prototyping
→ Dev-ready handoff & specs

Shipped-ready Figma · Research that drives decisions · UI your engineers can build from

⌥

Design Engineering

Figma to production-ready code via AI: Cursor, Claude API, MCP servers, v0, Framer.

→ AI-powered prototypes
→ Frontend implementation
→ Visual regression via LLM

Stack: React · Next.js · Framer · Cursor + Claude · Output: prod-ready frontend, not mockups

⊞

Design Systems

Token architecture, component libraries, governance models — systems that scale across teams.

→ Design tokens & theming
→ Component & UI library
→ Design ops & adoption metrics

Figma library + Storybook + token JSON + governance doc · Scales to 200+ components

◎

AI-Augmented Delivery

Claude API integration, MCP servers, LLM product UX, vibe coding — AI at every stage.

→ LLM interface design
→ AI token mapping
→ AI handoff docs

Claude API prototypes in 48h · Figma MCP → auto specs · LLM-powered QA checklists

End to end

Process

Kick-off Workshops
Goals / KPI Workshops
Generative Workshops
Prioritization Workshops

Workshops

01

Claude · Miro AI

Framing

02

Scope Planning
Problem Framing
Generating Hypotheses
Stakeholder Interviews

Claude · Perplexity

Competitive Research
Existing Knowledge
Current State Evaluation
DS Audit
UX Audit

Product Research

03

Claude · AI crawlers

User Research

04

Service Blueprinting
Insight Synthesis
User Flows & Scenarios
Journey Mapping
Personas
Customer Research

Otter.ai · Claude

Visual Concepts
Interactive Concepts
Concept Testing
Stakeholder Alignment

Concept Design

05

v0 · Claude · Midjourney

UI Design

06

Localization Design
Interaction Design
High-Fidelity UI
Low-Fidelity UI

Figma AI · Cursor + Claude

UX Writing
Media Generation
Asset Production
Copy Refinement

Content & Assets

07

Claude · AI generation

UX Testing

08

Design QA
Accessibility (WCAG)
AI Risk Assessment
DS Documentation
Usability Testing

axe DevTools · Claude

Knowledge Transfer
Handoff Docs
Sprint Support
Backlog & Roadmap
DS Evolution

Handoff

09

Claude · Figma MCP

Figma Sync
Design Tokens
Component Inventory
Tech Constraints
Design Brief

Design Intent

01

Claude · Figma MCP

Prototyping

02

UI Generation
Interactive Prototypes
Design-to-Code
Variant Exploration
Concept Validation

v0 · Framer · Claude

React Components
Token Implementation
Variant System
Storybook Docs
Accessibility

Component Build

03

Cursor + Claude · v0

Integration

04

Page Assembly
API Layer
State Management
Data Binding
Responsive Layout

Cursor · Claude Code

Unit Tests
E2E Tests
WCAG Audit
Visual Regression
Edge Cases

QA & Testing

05

Claude Code · axe DevTools

Performance

06

Bundle Analysis
Core Web Vitals
Image Optimization
Code Splitting
LCP / INP / CLS

Lighthouse · Claude

Preview Deploy
CI Pipeline
Automated Checks
PR Review
Staging Validation

CI / Preview

07

Vercel · GitHub Actions

Ship

08

Production Deploy
Feature Flags
Release Notes
Rollback Plan
Health Checks

Vercel · Claude Code

Error Tracking
Core Web Vitals
Analytics Review
User Feedback
Iteration Backlog

Monitor

09

Sentry · Claude · GA4

Scope

Digital Products

Web

SaaS & Web Apps

End-to-end UX, responsive UI, accessibility.

+ Core Web Vitals
+ Responsive Design
+ Personalized UI
+ Accessibility audit

Case studies: Metrolinx · BWF · Timeline: 6–16 weeks

Enterprise

Enterprise Products

Complex data viz, role-based UX, internal tools.

+ RBAC UI
+ Bulk Actions
+ UX analytics & insights

Built for 1000+ user orgs · Focus: data density + error reduction

Mobile

Mobile (iOS / Android)

Native UX patterns, gesture design, platform guidelines.

+ Haptic Feedback
+ Offline UX
+ Interaction Design

Delivered to App Store · React Native + native Figma handoff

System

Design Systems

Token architecture, component libraries, documentation, governance.

+ Figma Variables
+ Storybook & live examples
+ Multi-brand
+ AI changelog & release notes

Avg 200+ components · 60–80% less inconsistency · Multi-brand ready

AI

AI-Powered Products

LLM interfaces, prompt UX, AI feedback loops, error states.

+ Streaming UI
+ Human-in-loop
+ Tone of Voice

Built with Claude API · Streaming UI · Trust + recovery flow design

Industries

Where I work best

Fintech & Trading

Deal approval flows · Risk dashboards · Crypto platforms

Real-time risk dashboards, crypto platform UX, OKX pre-trade calculator. 3+ years in the space.

Enterprise SaaS

Internal tools · ERPs · Workflow platforms

Internal tools for 500+ user orgs, ERP dashboards, workflow automation. BWF grant portal.

Transportation

Government · Public service · Multi-brand systems

Metrolinx public transit platform (Canada). Government-grade accessibility, multi-brand system.

AI-First Products

LLM interfaces · Agent UX · AI risk management

LLM chat interfaces, agent dashboards, streaming response UX, human-in-the-loop flows.

Design Systems at Scale

Multi-product orgs · Component governance · Token architecture

Component governance for multi-product orgs. Token architecture, Storybook integration.

Healthcare & Data

Complex data visualisation · Regulated industry UX

WCAG 2.1 AA compliance, complex data viz for regulated industries, high-stakes error prevention.

Engagement

How we can work together

Full-time

Long-term product investment

Embedded in your team, aligned to roadmap, full stake in outcomes. I become part of the product — not a vendor.

Notice: 2–4 weeks · Cross-functional teams · Open to relocation

Contract / Fractional

Defined period, specific outcomes

Sprint-based, weekly deliverables, async-friendly across time zones. Scales up or down with your needs.

20–40h/week · EUR-based · Async-friendly, overlaps CET / EST / PST

Project

Fixed scope, fixed timeline

Discovery → delivery with clear success criteria and handoff-ready artifacts. You own everything.

Min scope: 2 weeks · Includes discovery + handoff · NDA-friendly

Based in Valencia, Spain · Remote-first · US / UK / EU time zones · Contact for quote → denyssheremet.com/contact

Let's Talk

Design is
how it works.

What I do

Product Design

Design Engineering

Design Systems

AI-Augmented Delivery

Process

Digital Products

SaaS & Web Apps

Enterprise Products

Mobile (iOS / Android)

Design Systems

AI-Powered Products

Where I work best

Fintech & Trading

Enterprise SaaS

Transportation

AI-First Products

Design Systems at Scale

Healthcare & Data

How we can work together

Full-time

Contract / Fractional

Project

Ready to build something
that works?

Design is how it works.

What I do

Product Design

Design Engineering

Design Systems

AI-Augmented Delivery

Process

Digital Products

SaaS & Web Apps

Enterprise Products

Mobile (iOS / Android)

Design Systems

AI-Powered Products

Where I work best

Fintech & Trading

Enterprise SaaS

Transportation

AI-First Products

Design Systems at Scale

Healthcare & Data

How we can work together

Full-time

Contract / Fractional

Project

Ready to build something that works?

Design is
how it works.

Ready to build something
that works?