Simera Professional Key (SPK)

Santiago E

Paraguay

Freelance Product Designer & Front-End Developer

10+ yrs exp

Skills

  • Front-End Development
  • Git
  • HTML
  • HTML5
  • Integration Architecture
  • Integration Testing
  • Interaction Design
  • jQuery
  • Mobile Design
  • SAS
  • User Experience (UX)
  • User Interface Design (UI)
  • Adobe XD
  • Front End Developer
  • Instructional Design
  • Language Design
  • Mobile App Design
  • Responsive Design
  • SASS
  • User Flows
  • User Research
  • Visual Design
  • Wireframing
  • User Experience (UX) Design
  • Responsive Web Design
  • Research
  • User Interface (UI) Design
  • Frontend Development
  • Information Architecture
  • Prototyping
  • Usability Testing
  • Mobile testing
  • Landing Pages
  • user-centered design
  • Illustration Design
  • User Experience Design
  • Adobe PDF
  • Design Systems
  • Learning Experience Design
  • Landing Page Design
  • User Interface Design

Santiago E

Paraguay

Freelance Product Designer & Front-End Developer

10+ yrs exp

Skills

  • Front-End Development
  • Git
  • HTML
  • HTML5
  • Integration Architecture
  • Integration Testing
  • Interaction Design
  • jQuery
  • Mobile Design
  • SAS
  • User Experience (UX)
  • User Interface Design (UI)
  • Adobe XD
  • Front End Developer
  • Instructional Design
  • Language Design
  • Mobile App Design
  • Responsive Design
  • SASS
  • User Flows
  • User Research
  • Visual Design
  • Wireframing
  • User Experience (UX) Design
  • Responsive Web Design
  • Research
  • User Interface (UI) Design
  • Frontend Development
  • Information Architecture
  • Prototyping
  • Usability Testing
  • Mobile testing
  • Landing Pages
  • user-centered design
  • Illustration Design
  • User Experience Design
  • Adobe PDF
  • Design Systems
  • Learning Experience Design
  • Landing Page Design
  • User Interface Design

Freelance Product Designer & Front-End Developer

Santiago Echague Estudio
July 2015 - present

Led end-to-end design and front-end development for 60+ digital products, including marketing websites, landing pages, eCommerce platforms, and dashboards. Designed and optimized landing pages and marketing websites focused on lead generation and conversion performance. IDESA Digital Platform Redesign – Led the UX/UI redesign for the client area and online payment system, resulting in a +77% increase in online payments (2023–2024) and a projected +167% cumulative growth by 2025. Improved usability and flow structure based on user research and interaction data. Redesigned Hendyla.com marketplace, enhancing product discovery and driving an estimated 20–25% increase in user conversions based on UX benchmark projections. Designed the self-order kiosk interface for Burger King Paraguay, improving menu navigation and order flow in physical retail environments. Bristol Mobile App / Desktop app (Credit & Payments) – Designed the end-to-end UX/UI for Bristol’s mobile app, enabling customers to apply for a credit line, track expenses, make payments, and complete a guided onboarding process. Collaborated with product and tech teams to refine usability and ensure regulatory compliance for financial data (In development — expected launch Nov 2025). Developed Pagopar’s checkout and onboarding experience, optimizing usability and mobile responsiveness across devices. Pacto Global Paraguay Website – Figma to WordPress institutional site for partner engagement and CSR communication. CEAMSO – Fiscal General Selection Website – Designed and coded the digital platform for Paraguay’s Attorney General selection process, ensuring transparent and accessible information display for public users. Created and maintained scalable design systems in Figma, ensuring consistent UI components across client projects. Built responsive layouts using HTML5, SASS, Bootstrap, and jQuery, bridging design and development for faster, pixel-perfect delivery. Collaborated with business owners, marketing teams, and developers to align design decisions with brand strategy, user experience, and conversion goals. Additional freelance projects include dashboards, mobile apps, and brand websites for local startups and organizations across retail, finance, and education sectors.

UX/UI Designer & Frontend Developer

Grupo Puntopy
March 2011 - July 2015

Designed and developed responsive websites and eCommerce solutions for national retail and corporate clients. Collaborated with cross-functional teams to define user flows, wireframes, and front-end components. Supported the Creative Director in establishing UI standards and mentoring junior designers.

UX/UI Designer, Frontend Developer & Graphic Designer

Team Estudio Agency
June 2010 - March 2011

Designed and built corporate websites in collaboration with backend developers. Participated in branding projects, digital campaigns, and marketing materials.

Smart Scores

Communication
80
Role Fit
95
Adaptability
90
Problem-solving
90

Smart Skills

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