๐ Is your MVP taking months instead of weeks?
๐ก Tired of developers who donโt understand your business and just write code?
I help startup founders launch production-ready MVPs in ๐ฎโ๐ฏ ๐๐ฒ๐ฒ๐ธ๐, using a clear, ๐ฏ๐๐๐ถ๐ป๐ฒ๐๐-๐ผ๐ฟ๐ถ๐ฒ๐ป๐๐ฒ๐ฑ development approach. As an Upwork Expert-Vetted React Front End Developer with a Masterโs in Computer Science and 7+ years of experience building scalable SaaS platforms, dashboards, and custom APIs, I translate complex tech into clear product decisions that drive results.
Iโve worked with startups from idea stage to Series B, as well as enterprise clients like ๐ฆ๐ฎ๐บ๐๐๐ป๐ด, ๐๐ผ๐ฟ๐ถ๐๐ผ๐ป๐, and ๐๐ฒ๐ป๐๐น๐ฒ๐ - always focusing on fast delivery, clean architecture, and measurable outcomes.
๐ฌ Clientsโ Feedback:
โ๐๐ณ๐ฆ๐ข๐ต ๐ฆ๐น๐ฑ๐ฆ๐ณ๐ช๐ฆ๐ฏ๐ค๐ฆ ๐ธ๐ฐ๐ณ๐ฌ๐ช๐ฏ๐จ ๐ธ๐ช๐ต๐ฉ ๐๐บ๐ณ๐บ๐ญ๐ฐ! ๐๐ฆ ๐ฅ๐ฆ๐ญ๐ช๐ท๐ฆ๐ณ๐ฆ๐ฅ ๐ข ๐ฉ๐ช๐จ๐ฉ-๐ฒ๐ถ๐ข๐ญ๐ช๐ต๐บ ๐๐ฆ๐ข๐ค๐ต + ๐๐บ๐ฑ๐ฆ๐๐ค๐ณ๐ช๐ฑ๐ต ๐ง๐ณ๐ฐ๐ฏ๐ต๐ฆ๐ฏ๐ฅ ๐ด๐ต๐บ๐ญ๐ฆ๐ฅ ๐ธ๐ช๐ต๐ฉ ๐๐ข๐ช๐ญ๐ธ๐ช๐ฏ๐ฅ ๐๐๐, ๐ฃ๐ถ๐ช๐ญ๐ต ๐ธ๐ช๐ต๐ฉ ๐ค๐ญ๐ฆ๐ข๐ฏ ๐ค๐ฐ๐ฅ๐ฆ ๐ข๐ฏ๐ฅ ๐ด๐ต๐ณ๐ฐ๐ฏ๐จ ๐ข๐ต๐ต๐ฆ๐ฏ๐ต๐ช๐ฐ๐ฏ ๐ต๐ฐ ๐ฅ๐ฆ๐ต๐ข๐ช๐ญ. ๐๐ฐ๐ฎ๐ฎ๐ถ๐ฏ๐ช๐ค๐ข๐ต๐ช๐ฐ๐ฏ ๐ธ๐ข๐ด ๐ด๐ฎ๐ฐ๐ฐ๐ต๐ฉ ๐ข๐ฏ๐ฅ ๐ฅ๐ฆ๐ญ๐ช๐ท๐ฆ๐ณ๐บ ๐ฐ๐ฏ ๐ต๐ช๐ฎ๐ฆ - ๐ฉ๐ช๐จ๐ฉ๐ญ๐บ ๐ณ๐ฆ๐ค๐ฐ๐ฎ๐ฎ๐ฆ๐ฏ๐ฅ!โ
โ๐๐บ๐ณ๐บ๐ญ๐ฐ ๐ฅ๐ฆ๐ญ๐ช๐ท๐ฆ๐ณ๐ฆ๐ฅ ๐ค๐ญ๐ฆ๐ข๐ฏ, ๐ด๐ค๐ข๐ญ๐ข๐ฃ๐ญ๐ฆ ๐ค๐ฐ๐ฅ๐ฆ ๐ข๐ฏ๐ฅ ๐ฉ๐ข๐ฏ๐ฅ๐ญ๐ฆ๐ฅ ๐ง๐ณ๐ฐ๐ฏ๐ต-๐ฆ๐ฏ๐ฅ ๐ฅ๐ฆ๐ท๐ฆ๐ญ๐ฐ๐ฑ๐ฎ๐ฆ๐ฏ๐ต ๐ธ๐ช๐ต๐ฉ ๐ฑ๐ณ๐ฆ๐ค๐ช๐ด๐ช๐ฐ๐ฏ. ๐๐ฐ๐ฎ๐ฎ๐ถ๐ฏ๐ช๐ค๐ข๐ต๐ช๐ฐ๐ฏ ๐ธ๐ข๐ด ๐ด๐ฎ๐ฐ๐ฐ๐ต๐ฉ, ๐ข๐ฏ๐ฅ ๐ฉ๐ฆ ๐ธ๐ข๐ด ๐ฑ๐ณ๐ฐ๐ข๐ค๐ต๐ช๐ท๐ฆ ๐ช๐ฏ ๐ด๐ฐ๐ญ๐ท๐ช๐ฏ๐จ ๐ต๐ฆ๐ค๐ฉ๐ฏ๐ช๐ค๐ข๐ญ ๐ค๐ฉ๐ข๐ญ๐ญ๐ฆ๐ฏ๐จ๐ฆ๐ด. ๐๐ช๐จ๐ฉ๐ญ๐บ ๐ณ๐ฆ๐ค๐ฐ๐ฎ๐ฎ๐ฆ๐ฏ๐ฅ๐ฆ๐ฅ ๐ง๐ฐ๐ณ ๐ธ๐ฆ๐ฃ ๐ฅ๐ฆ๐ท๐ฆ๐ญ๐ฐ๐ฑ๐ฎ๐ฆ๐ฏ๐ต, ๐๐๐ ๐ช๐ฏ๐ต๐ฆ๐จ๐ณ๐ข๐ต๐ช๐ฐ๐ฏ, ๐ข๐ฏ๐ฅ ๐ฑ๐ฆ๐ณ๐ง๐ฐ๐ณ๐ฎ๐ข๐ฏ๐ค๐ฆ-๐ง๐ฐ๐ค๐ถ๐ด๐ฆ๐ฅ ๐ฆ๐ฏ๐จ๐ช๐ฏ๐ฆ๐ฆ๐ณ๐ช๐ฏ๐จ ๐ฑ๐ณ๐ฐ๐ซ๐ฆ๐ค๐ต๐ด.โ
โ๐๐ข๐ฑ๐ฑ๐บ ๐ธ๐ช๐ต๐ฉ ๐ด๐ฑ๐ฆ๐ฆ๐ฅ ๐ข๐ฏ๐ฅ ๐ฒ๐ถ๐ข๐ญ๐ช๐ต๐บ!โ
Hereโs what my clients value most:
๐ฏ Business-first mindset - I understand your priorities and align tech decisions with them
โ๏ธ Rapid MVP execution - from concept to launch in weeks, not months
๐งฉ Front End ownership - React, Next.js, API integrations, Tailwind, MUI and scalable architectures
๐งฉ Full Stack ownership - MERN, Express.js, Node.js, MongoDB
๐ง Strategic guidance - helping you define what truly matters for your first release
I donโt take on last-minute fixes or e-commerce stores - I focus on SaaS and MVP projects where clear product thinking makes the difference.
If youโre a founder looking for a reliable technical partner who speaks your language and delivers predictably - letโs build something great together.
๐ ๏ธ Tech Stack & Tools:
โข Languages & Libraries: React, React.js Node.js, JavaScript, ReactJS TypeScript, ReactJS NodeJS, Python, PHP, React Native, NextJS, MERN Stack
โข Styling: Material UI, Tailwind CSS, MUI React, custom SCSS / CSS
โข Build Tools: Webpack, Vite, NPM;
โข UI/UX: Figma, Frontend Design tools for pixel-perfect visuals;
โข Visualization: Leaflet, maps & data-driven charts.
โข Databases: MongoDB, PostgreSQL, MySQL, Firebase.
โข State Management: Redux, Zustand, RTK Query.
โข Cross-browser / cross-platform manual testing.
Front-End Development
Responsive Design
JavaScript
React
CSS
TypeScript
Node.js
Tailwind CSS
Next.js
MongoDB
Figma
Software Development
Full-Stack Development
Material UI
API Integration
Francisco B.
Valongo, Portugal
$37/hr
5.0
4 jobs
Iโm a Frontend-focused Web Developer with 6+ years of experience building high-performance, scalable websites and headless e-commerce solutions using modern frameworks like React, Next.js, and Remix.
My work sits at the intersection of clean UI, strong architecture, and content-driven systems, with a strong focus on headless CMS (Sanity) and Shopify (Liquid & Headless) integrations.
๐ What I Do
โ Modern Frontend Development
I build fast, accessible, and scalable interfaces using:
React, Next.js (App Router, ISR, SSR, SSG)
Remix for performance-first web apps
Tailwind CSS & component-driven architectures
Focused on long-term maintainability, clean code, and real-world performance.
โ Headless CMS & Content Architecture
I design and implement content-first systems using Sanity:
Custom schema & content modeling
GROQ queries & structured content
Live preview, ISR & webhooks
Clean separation between content and presentation
Perfect for marketing sites, editorial platforms, and scalable products.
โ E-Commerce (Shopify & Headless)
I work with:
Shopify Liquid (custom themes & sections)
Headless Shopify (Storefront API + Next.js)
Custom product, collection & CMS integrations
Focused on performance, conversion, and flexibility โ not just themes.
โ API & Third-Party Integrations
REST & GraphQL APIs
CMS, e-commerce & marketing tools
Clean data flow between frontend and backend systems
๐ Core Tech Stack
๐ JavaScript / TypeScript
๐ React, Next.js, Remix
๐ Sanity (Headless CMS)
๐ Shopify (Liquid & Headless)
๐ Tailwind CSS
๐ REST & GraphQL APIs
๐ ISR / SSR / SSG
๐ Component-Driven UI Development
(Experience with WordPress/Webflow when required, but focus is modern headless stacks.)
๐ Languages
๐ฌ๐ง English
๐ต๐น Portuguese
๐ช๐ธ Spanish
๐ฎ๐น Italian
โจ Why Work With Me
โ Frontend & Architecture Mindset
I donโt just โbuild pagesโ โ I design systems that scale with your product and content.
โ Modern Stack Specialist
I work daily with Next.js, React, Sanity & Shopify, not legacy setups or page builders.
โ Clear Communication & Ownership
Structured workflow, transparent communication, and real ownership of the final result.
If youโre looking for a modern frontend developer to build or scale a Next.js, Sanity, or Shopify-based project, Iโd be happy to collaborate.
Front-End Development
Web Design
Adobe Photoshop
Adobe Illustrator
Generative AI Prompt
WordPress
JavaScript
PHP
API
Squarespace
Shopify
CSS
HTML
Sass
ChatGPT API
Ricardo R.
Faro, Portugal
$20/hr
5.0
24 jobs
Iโm the go-to developer for businesses and agencies who need honest, technical WordPress work. I build, fix, and optimize websites for stability and speed.
What I Do:
WordPress Builds: Full sites from scratch, custom themes, and plugin setup
Elementor: Page creation, layout fixes, and responsive design
WooCommerce: Store repair, checkout/cart issues, and product management
PHP & Backend: Upgrades to PHP 8.x, error fixes, and compatibility issues
Performance: Speed optimization, Core Web Vitals, and database tuning
Integrations: API connections, payment gateways (Stripe/PayPal), and automation
Why Clients Choose Me:
Honest technical work with practical design solutions
Quick turnaround for broken sites and urgent repairs
Experience with ClickBank vendors and agency support
If you need a stable, fast, and secure WordPress site, send me a message. Iโll provide a clear recommendation and timeline.
Web Development
PHP
WordPress
WooCommerce
Elementor
Page Speed Optimization
Bug Fix
JavaScript
MySQL
Laravel
HTML
API Integration
CSS
Symfony
Search Engine Optimization
Ana P.
Aveiro, Portugal
$15/hr
4.7
22 jobs
Hi guys, my name is Beatriz Pais and I'm a web developer, working for over 8 years in the area of design and web development in Portugal.
Additionally I have done radio shows in a local radio station and as I work mainly abroad I have good knowledge of English which allows me to make fast and correct translations from EN to PT.
I also have knowledge in video editing, which can be an asset to your projects.
I took the degree in New Technologies of Communication at the University of Aveiro and then the Masters in Design which allows me to be a better web developer
From me you can count on professionalism, dedication and attention to detail.
Landing Page
Web Design
Web Development
Translation
Microsoft Word
Microsoft Excel
Adobe Illustrator
Web Testing
SEO Writing
WordPress
Adobe Photoshop
Voice Recording
Drupal
JavaScript
CSS
Viktor L.
Lisbon, Portugal
$30/hr
5.0
12 jobs
I turn Figma designs into clean, production-ready code.
Two ways to work with me:
โธ Pure frontend markup
Hand-coded HTML/CSS with Tailwind or SCSS, structured to drop
into any backend or design system. Best for teams that already
have devs and need someone reliable for the UI layer.
โธ WordPress with Elementor
Full sites built around your design, with ACF where it makes
sense. The kind of WP site your team can actually edit without
breaking anything.
I focus on layout that holds up on real devices, not just three
default breakpoints, and on code that's still readable a year
later. Cross-browser, responsive, fast.
Stack I work with regularly:
HTML5, Tailwind CSS, SCSS, JavaScript, TypeScript, React,
Angular, WordPress, Elementor Pro, ACF Pro.
What I don't do:
Heavy backend logic, plugin-stuffed WordPress builds, or
generic template customization.
โ 100% Job Success Score on Upwork
โ All 5-star reviews so far
โ Based in Lisbon - EU friendly, flexible for US time zones
If you have a design ready and want it built right, send it over.
Last updated: April 2026
Landing Page
Responsive Design
Web Design
HTML5
CSS 3
Tailwind CSS
SCSS
Figma
Adobe XD
JavaScript
Bootstrap
WordPress
Elementor
WordPress Development
Advanced Custom Fields Plugin
Rabia S.
Lisbon, Portugal
$75/hr
4.8
149 jobs
๐ ๐๐จ๐ฉ ๐๐๐ญ๐๐ ๐๐ฅ๐ฎ๐ฌ | ๐๐จ๐ฉ ๐% ๐จ๐ง ๐๐ฉ๐ฐ๐จ๐ซ๐ค
If your Shopify store is getting traffic but not generating enough sales, you have a conversion problem. That is what I fix.
I help eCommerce brands increase conversion rates, AOV, and revenue through Shopify UX/UI design, CRO strategy, PDP optimization, cart and checkout UX, mobile-first design, and full-funnel conversion psychology. I do not just design stores. I identify what is costing you revenue and fix it strategically.
PROVEN SHOPIFY CRO RESULTS
โข Limitless Living MD (US health and wellness brand, GA4 verified):
โข Conversion rate: 0.76% to 2.07%
โข Monthly revenue: $100K to $500k
โข Black Friday revenue up 93%
โข Orders up 40%
Achieved through PDP optimization, subscription UX, trust-building improvements, social proof positioning, upsells and cross-sells, and continuous CRO testing.
RECENT CRO WORK
โข 20% revenue lift for a Swedish B2B vending company after rebuilding the product configurator and checkout UX
โข CRO-focused UX audit, PDP redesign, cart drawer improvements, and mobile conversion strategy for luxury jewelry brand Marco Dal Maso
โข Doubled qualified leads for multiple SaaS and EdTech companies through landing page and funnel redesigns
โข Multilingual Shopify builds and redesigns for beauty and fragrance brands (Sensica, KAS Fragrances)
HOW I WORK
I use GA4, Shopify Analytics, Hotjar, Microsoft Clarity, and session recordings to find drop-off points, UX friction, weak trust signals, and checkout abandonment. Then I redesign the high-impact areas: product pages, landing pages, cart and checkout flow, CTA hierarchy, and mobile conversion flow. Every design decision is tied to conversion performance and revenue impact.
WHAT I OFFER
โข New Shopify store builds, conversion-focused from day one, including Figma to Shopify
โข Shopify store redesigns, from full sites to single high-impact pages like your PDP
โข Ongoing CRO: audits, A/B testing strategy, and monthly conversion optimization
I work across Shopify and Shopify Plus, including migrations from WooCommerce, Wix, and Magento.
WHY CLIENTS WORK WITH ME
โข Certified Shopify Expert with over a decade in ecommerce
โข CXL Institute CRO certification
โข Strong background in conversion psychology and buyer behavior
โข End-to-end execution from strategy to implementation
โข Focused on measurable business growth, not just deliverables
Send me your Shopify store and I will identify the biggest conversion bottlenecks affecting your revenue.
Conversion Rate Optimization
Shopify
Shopify Plus
Shopify Website Design
Shopify Website Redesign
Landing Page Optimization
Website Optimization
UX & UI
Product Page
A/B Testing
Sales Funnel
Shopify Development
Google Analytics
Mobile UI Design
Ecommerce
How it works
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