UI/UX and Web Designer for SaaS, B2B, and startup products. I design
corporate websites, dashboards and web apps that convert visitors into
paying users with highest retention and conversion rates.
⭐️ 100% success rate (5.0 rating across 95 projects)
⭐️ 1,000,000+ monthly users on products I've designed
⭐️ 53% average conversion-rate growth vs. the initial design
⭐️ Good UI makes things look better - strategic UX makes the business grow for real
WHAT CLIENTS GET
Results from real projects:
- Delphyr —Healthcare / Healthtech product redesign, AI module UX Ui design, marketing website and investor materials
→ €2.05M raised, +56% user satisfaction
- Wemine — Fintech Ux Ui design for web app, corporate website, pitch deck and social assets
→ $1M deal closed within two weeks of launch
- Plan B — Fintech Ux Ui design for web portal and dashboards, corporate website, brand identity and pitch decks
→ $150,000 grant from Ava Labs
- FundFix — Web3 marketing website design and build
→ +49% conversion rate, $473,000 raised in pre-sale
- Boom — Ux Ui design for a wellness Web and mobile app, brand identity, Corporate website, Framer build
→ −30% churn, Y Combinator finalist
- Minisport - strategic rebrand for corporate website, Ux Ui design for app and full rebranding.
→ +30% revenue
Across my client portfolio: $18M+ raised by clients in the last year,
1,000,000+ monthly users on products I've designed, 53% average conversion rate
improvement over the previous design.
WHAT I DESIGN
SaaS & B2B product design
Dashboards · admin panels & back-office tools · data tables and complex filtering · reporting and analytics UX · multi-tenant SaaS · settings, billing, roles and permissions · onboarding and activation flows · customer portals · empty, loading and error states · CRM, ER
Web product design
Web application UI · marketing and product websites · information architecture · responsive and mobile-first layouts · accessibility (WCAG) · conversion-focused page structure · design-to-dev with React, Vue, Webflow or Framer
AI products
LLM interfaces · AI chat and agent UI · model output, confidence and error states · human-in-the-loop review flows
Design systems & UX process
Component libraries · design tokens · Auto Layout, variables and variants in Figma · documented states · user research · competitor analysis · journey mapping · user flows · wireframing · interactive prototyping · usability testing · UX audits
COMMON REQUESTS I DELIVER
SaaS dashboard redesign · admin panel UX overhaul · data table and filter UX · settings, billing and permissions design · new SaaS MVP from scratch · web app UI design · website and product site redesign · design system audit and build · Figma file cleanup and component library · mobile app design from scratch · mobile app redesign · cross-platform design system · onboarding and activation redesign · UX audit of an existing product · AI chat and agent interface design
HOW I WORK
1. Discovery — business goals, users, competitors, metrics
2. Research and flows — user research, UX audit, information architecture, user flows
3. Wireframes — low-fidelity structure, fast iteration
4. UI design — high-fidelity screens built on a reusable design system
5. Prototype — interactive Figma, usability testing
6. Handoff — dev-ready specs, components, documented states, ongoing support
I ask about your users and your data model before I open Figma. If your product has roles, I want the permission matrix. If it has an API, I want to know what it returns. Design decisions in real software are constrained by things that aren't visual.
WHY TEAMS HIRE ME
6+ years specialising in SaaS, Web, product design and Website Design
Top Rated with 100% Job Success across 95 contracts and 3,186 hours
Products I've designed serve over 1,000,000 monthly users
Engineering Master's degree — I read unit economics and API docs in the same afternoon
Strong handoff: clean Figma files, components, tokens, documented states, ready for teams and AI
Embedded with engineering — I think in components and design systems
INDUSTRIES
SaaS · B2B · FinTech · HealthTech · Logistics · AI/ML products · EdTech
TOOLS
Figma (Auto Layout, Variables, Components), FigJam, ProtoPie, Principle, Maze, Miro
Handoff to React, Next.js, Vue, Webflow, Framer
Notion, Jira, Linear, Slack, Loom
AI: Claude, ChatGPT, Grok, Lovable, Midjourney, Runway, Kling, Seedance
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Building or redesigning a SaaS product, dashboard, web app or corporate website? Send me a message with a link to what you have and what you want it to do. I'll reply within a day with an honest read on what I'd change and what it would take.
Click INVITE to discuss your project.
Web Design
Figma
User Interface Design
UX & UI Design
User Experience Design
Mobile App Design
Product Design
SaaS
Webflow
Framer
Landing Page Design
Responsive Design
Wireframing
Prototyping
FinTech
Dashboard
Website Redesign
Corporate Website
UI/UX Prototyping
Conversion Rate Optimization
Romain O.
Paris, France
$90/hr
4.6
179 jobs
🏆 Upwork Expert-Vetted Talent ( Top 1% Data, Tracking and Analytics)
🏆 100% Job Success
I design and build the data infrastructure behind marketing decisions: from server-side tracking to BigQuery pipelines to AI-powered reporting, using Python to automate and connect it all.
With 10+ years in analytics and martech, I help businesses move past basic tag implementation toward reliable, scalable data architecture that survives cookie deprecation, privacy regulation, and platform changes.
🌟 Data Pipeline & Architecture
- Server-side GTM (Stape, GCP Cloud Run) for durable, privacy-compliant tracking
- BigQuery pipelines: incremental syncs, backfills, multi-source data warehousing
- Python scripts for data normalization, backfills, and pipeline orchestration
- Cloud Functions / Cloud Scheduler orchestration for automated data flows
- CRM-to-warehouse integrations (HubSpot, Salesforce) for unified reporting
🌟 Conversion Tracking & CAPI
- Meta, TikTok, and Google Ads Conversion API implementation
- Offline conversion pipelines (Google Ads Data Manager API), built with Python for hashing, deduplication, and batch processing
- Cross-platform deduplication and event match quality optimization
- GDPR-compliant PII hashing and consent-aware tracking
🌟 AI-Powered MarTech
- Python-based automation connecting marketing data to AI APIs (Claude, OpenAI)
- Automated anomaly detection on tracking pipelines and conversion data
- AI-generated reporting summaries from Looker Studio / BigQuery data
- Natural-language querying layers for non-technical stakeholders
🌟 Why work with me
- Upwork Expert-Vetted Talent, 100% Job Success, $500K+ earned
- 10+ years across e-commerce, SaaS, and multi-market clients (EU, US, France)
- I don't just implement tracking, I build the architecture and automation that keeps your data trustworthy as platforms and regulations shift
Google Analytics
Google Tag Manager
Data Analytics
Data Analysis
Google Analytics 4
Web Analytics
Analytics
Pixel Setup & Optimization
Piwik PRO
Tag Manager Setup
Facebook Pixel Setup & Optimization
Analytics & Tracking Setup
Tracking Tags Installation
Tracking Pixel
Tracking Goals Setup
Lorenzo D.
Paris, France
$80/hr
5.0
11 jobs
I am a Data Scientist and ML/BI Engineer specialized in building and industrializing data & ML pipelines on Google Cloud.
With 5 years of experience across large enterprises (Amazon, Equifax, SFR), scale-ups (Glovo) and multiple freelance projects in Europe, I help companies design robust data architectures, automate analytics workflows and deploy production-grade ML systems.
My expertise covers the full lifecycle:
• Data engineering on GCP (BigQuery, Cloud Run, Cloud Functions, Vertex AI)
• End-to-end ML engineering & MLOps (model migration, training, serving, CI/CD)
• BI and analytics solutions (Looker, Power BI, dbt, automated reporting)
• API/Data integrations and process automation at scale
Today I work through my EURL Damiani Data Consulting, supporting SMEs, scale-ups and grands comptes in modernizing their data stack and delivering actionable, production-ready solutions.
🔊Call to Action:
Feel free to contact me for data-driven solutions to your business challenges. Let's work together to turn your data into actionable insights.
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