Hey there! My name is

Lucas Couto

Full Stack Developer

Crafting exceptional digital experiences with modern technologies and creative solutions.

Lucas Couto

About Me

I’m a software engineer with more than ten years of experience designing and building mobile and web applications. My background spans everything from system architecture to user experience, giving me a holistic understanding of how to turn ideas into dependable, scalable products. I’ve led teams, guided technical direction, and shipped solutions that improved both performance and usability.

What drives me is creating software that feels effortless — technology that quietly empowers people rather than getting in their way. I care deeply about the craft behind great user experiences, the clarity of a well-structured system, and the satisfaction of seeing a product come to life from the first line of code to the final release.

Technical Skills

Technologies I love working with

React
Flutter
React Native (Expo)
TypeScript
PostgreSQL
RESTful APIs
Laravel
Firebase
Convex
UI/UX Design
Python
Tailwind CSS
Java
Next.js
Svelte
GraphQL
WordPress
Express.js
Product Management
Git
Supabase

Projects

A showcase of my recent work and personal projects

Blendwise

Blendwise

Blendwise takes messy, cumbersome pricing grids and turns them into a single, reliable source of truth.

The project was a challenge from the start — the data models and architecture were extremely complex — which made the work even more rewarding. I focused on building a foundation that could scale confidently, remain easy to maintain, and support the product’s long-term evolution.

Tech Stack
ReactConvexTanstackMobX
Links
TurtleOS

TurtleOS

A platform designed for developers and teams to collaborate with clients fractionally — from anywhere.

When I joined, the product was already live, but there was room to refine key experiences. I completely rebuilt the time tracker, making it faster, more intuitive, and reliable.

I also integrated additional payment methods through Stripe, making transactions easier and expanding support for more clients worldwide.

Tech Stack
FlutterGraphQLRiverpodReactStripe
Links
Postcards for Parents

Postcards for Parents

Postcards for Parents turns complex developmental science into simple weekly guidance for parents.


I rebuilt the platform from a monolithic Laravel app into a modular API + React architecture, improving performance, reliability, and laying a much stronger foundation for faster development and better user experience.

Tech Stack
ReactLaravelMySQLMailchimpResend
Links
MAHC

MAHC

Maine Affordable Housing Coalition's website is a central resource for housing policy, advocacy, and community partners in Maine. Its companion landing page, YesToHousing.me, introduces the mission in a clear, focused, and action-driven way.

I built both using WordPress with extensive custom code — creating custom components and pages, with scalable structures tailored to each site’s goals. The main site supports rich, frequently updated content, while the landing page is optimized for clarity, speed, and conversion.

Tech Stack
WordPressPHPMembershipWorksMailchimp
Links
Activite Personal

Activite Personal

A complete physical assessment platform that helps personal trainers track client progress and build safer, more effective workout plans.

This project defined a major chapter of my career. I began as an intern and, almost ten years later, left as a part owner. Over that time, I shaped the product end to end — UI/UX, architecture, features, marketing, you name it.

Despite being a niche solution, it grew to over 5,000 registered users and a solid base of paying subscribers. Unfortunately it was discontinued some time after my departure.

Tech Stack
FlutterBLoCJavaPostgreSQLAndroidKotlinPHP

Work Experience

My professional journey and key accomplishments

Lead Developer

New Lion

Mar 2024 - Present

Lead Developer (Current Role)
• Leading the architecture and development of a new product from the ground up, defining technical foundations and long-term scalability.
• Collaborating closely with designers and stakeholders to align technical solutions with business goals.
• Overseeing code quality, mentoring developers, and ensuring consistent delivery standards across the team.

Product Manager (Initial Role)
• Led a team of developers to deliver product features effectively and according to strategy.
• Created product designs, wireframes, and roadmaps to guide development priorities.

Technologies Used
ReactConvexClerkFly.ioC#ElixirFlutter

Full Stack Developer

Postcards for Parents

Sep 2023 - Present

• Rebuilt a monolithic Laravel app into a modular architecture with a React (TypeScript) frontend and Laravel API backend.
• Improved performance and maintainability by introducing a scalable API structure and better frontend organization.
• Resulted in faster development cycles, higher reliability, and an improved user experience.

Technologies Used
ReactLaravelPHPContentfulMySQLGraphQL

Frontend Developer

Turtle

Jan 2022 - Feb - 2024

• Designed and prototyped new products and product features, collaborating closely with designers and stakeholders.
• Built production-ready web and mobile apps using Flutter, React and React Native (Expo).
• Conducted user interviews and usability testing, transforming feedback into actionable roadmap items.
• Helped structure product roadmaps and team workflows.

Technologies Used
FlutterReactRiverpodGraphQL

Full Stack Developer

iDevel

Feb 2014 - Oct 2022

• Released the first production version of Activite Personal, a fitness assessment app for personal trainers, along with a marketing website I designed and built.
• Rebuilt the entire app from the ground up using Flutter, making it faster, more responsive, and available on both Android and iOS.
• Migrated our middleware to a fully featured RESTful API, improving security through HTTPS and enabling a more scalable architecture.
• Integrated BLE (Bluetooth Low Energy) device support and added new assessment features to expand product capabilities.
• Conducted multiple usability testing sessions to understand user behavior and improve the app’s UX.
• Collaborated with marketing teams and agencies to create campaigns and product positioning strategies that boosted user engagement.
• Managed the full product lifecycle — from design and prototyping to backend architecture, frontend implementation, and post-launch maintenance.

Technologies Used
FlutterJavaAndroidPostgreSQLPHP