Carlos Lastres

MBA, Senior Product Designer + Software Engineer


Recent projects stories

My work

I've been helping people to improve their Product Design skills and ace their product design interview. Also I have been helping companies to increase their revenue with design. Let’s work together to achieve your goals.

SaaS Product Design

Text-to-Speech Mac Application

Speechify Mac App

Speechify is the #1 text-to-speech in the world. For this project, I created a whole new UI for the Mac app that led to an increase in retention and a trial-to-paid rate

App Product Design

AI Audio App

AI Audio App

Discover an AI Audio Listening App bursting with vibrant colors and AI-Generated media

UI/UX Design

Speechify Website


Speechify is the #1 rated text-to-speech app in its category, with over 150,000 5-star reviews.

Web Development

peaq Network

peaq Network

peaq is the blockchain for real-world applications. The peaq layer-1 blockchain enables anyone to build decentralized applications (dApps) and Decentralized Physical Infrastructure Networks (DePINs) for car-sharing, street-mapping, Web access, and more, creating real-world value as part of the Economy of Things

UI/UX Design

Blockchain Digital Credentials


Convergence is a technology & consulting company based in Toronto & Melbourne using blockchain to change businesses. My primary goal is to provide top-notch user experiences for all their clients.

Web Development

Vaping Company


Gippro, founded in Tokyo, Japan, is a technology company focusing on the health industry. Our team members include designers, engineers, experts in the industry chain, marketing, customer service, etc., are committed to providing customers with healthy changes and joys.

Web Development

Aao Projector Manufacturing

Aao Projectors

Aao is a projector manufacturing company. I needed to create the brand guidelines and online presence and develop their new website. After the project, their sales increased 3x within six months.

App Product Design

Electric Bicycle App

Tenways App

Tenways is an e-bike manufacturing company with operations in the Netherlands. They have excellent bikes but need a better user experience with their app. I improved the UI and UX for the flow of bike registration, recharge locations, and user interaction.