Dev Lucas Lima

<Full Stack Developer|/>

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About

My journey began in administrative and financial operations, moved through design, and led me to software development. Curiosity and the desire to turn ideas into useful solutions connect every step.

Today, I work as a Full Stack Developer at WeFit, building frontend applications, backend services, and reactive APIs. I combine engineering, product thinking, and user experience to build software for users, businesses, and the people maintaining it.

I also build my own products. I am the sole developer of Suna, an MVP in development for the sand sports community, and handle product definition, design, implementation, and delivery. I am also creating Kaizen to organize and improve my training, nutrition, and routine.

I value clear code, maintainable systems, and decisions that reduce complexity. I want to work with people who share the desire to make the world a better place.

Outside work, you will usually find me at the beach, playing footvolley, or learning new recipes on YouTube.

Anime-style illustration of Lucas Lima wearing a black hoodie at sunset

Dev Lucas Lima

Full Stack Developer

Product Engineer

Projects

Suna

MVP in development

Sole Full Stack Developer · Product Engineer

Jan 2026 – present

A product for the sand sports community. I handle product definition, business rules, design, architecture, implementation, and delivery. The MVP is in active development and uses Fradelli Design System. Suna means sand in Japanese and also evokes the English word sun. Its visual identity represents colorful sand grains seen at a microscopic scale.

  • TypeScript
  • React
  • Next.js
  • NestJS
  • PostgreSQL
  • Prisma
  • Docker
  • Vercel

Design System

Catalog published

Creator and developer

I built Fradelli Design System, a React component library and visual tokens to bring consistency to my projects, with glass and solid surfaces, typography, spacing, and accessible states. The public Storybook catalog lets you explore the components and their variations.

  • React
  • TypeScript
  • CSS
  • Tailwind CSS
  • Storybook
  • Vitest

Professional experience

  1. Sep 2025 – present

    WeFit — Digital Service Design

    Tech Designer | Full Stack Developer

    At WeFit, I work on React and Next.js applications, Node.js and NestJS services, and reactive Java APIs. On Porto GO, I contributed to the product's evolution alongside engineering, product, and design.

    My contributions
    • Delivered features end to end across Porto GO's frontend, BFFs, and APIs with Spring Boot and WebFlux.
    • Improved endpoint observability through structured logs, request tracing, consistent error handling, and sensitive data sanitization.
    • Standardized shared Redis cache keys and refactored code to reduce technical debt and make maintenance easier.
  2. May 2025 – Sep 2025

    Chãozão

    Full Stack Developer

    I redesigned and implemented the signup and subscription purchase flows for a rural real estate platform, aiming to simplify the experience and improve conversion.

    My contributions
    • Rebuilt the login and signup flow, including Google Login and One Tap, to reduce steps and make account creation easier.
    • Reworked the subscription purchase flow from design through implementation, making it easier to choose and subscribe to a plan.
    • Built a database-backed plans model so commercial settings could change without rewriting the frontend.
    • Refactored large components and addressed slow or unresponsive pages with React, Next.js, Node.js, and NestJS.
  3. Sep 2024 – Feb 2025

    StartU

    Full Stack Developer

    I helped improve application performance and code organization by separating responsibilities and building a dedicated NestJS backend to support the product's evolution.

    My contributions
    • Planned the architecture and created a NestJS backend repository to separate server logic previously handled within Next.js, with a focus on performance, scalability, and readability.
    • Refactored data models and queries with PostgreSQL and Prisma to improve performance and data organization, and used AWS SQS for bulk write processing.
    • Automated tests, lint, and deployment with GitHub Actions and implemented JWT and refresh tokens in HttpOnly cookies.
    • Coordinated technical activities and organized sprints with Scrum/Kanban and Azure DevOps.
    Visit website · StartU
  4. Jun 2024 – Apr 2025

    Visite AI

    Frontend Developer

    I designed the interfaces and was the sole frontend developer of a B2B SaaS platform connecting clients, agents, and real estate agencies through QR Code experiences.

    My contributions
    • Planned and designed interfaces with the people responsible for the product, carrying the work through to frontend implementation.
    • Built dashboards and chatbot interfaces with Vue.js and TypeScript.
    • Created responsive property forms, image upload flows, and validation with Zod.
    • Integrated with AWS EC2 and S3 infrastructure and applied web accessibility and SEO practices.
    Visit website · Visite AI
  5. May 2023 – May 2024

    Full Stack Java Developer | Android

    I modernized native Android interfaces and legacy Java code, combining user experience improvements with infrastructure migration.

    My contributions
    • Refactored Java code and migrated the environment from JBoss to WildFly.
    • Worked with Docker and Nginx for containerization and configuration.
    • Used pair programming to resolve critical problems with the team.
    Visit website · Declink
  6. Jul 2022 – Jul 2023

    SantaGroup

    Frontend Developer

    I turned Figma designs into responsive game interfaces and micro frontends with React and TypeScript, focusing on visual fidelity and usability.

    My contributions
    • Built HUDs, avatar customization, and settings menus.
    • Worked with CSS-in-JS, Styled Components, and Motion for styling and animation.
    Visit website · SantaGroup
  7. Oct 2019 – Jan 2023

    Freelancer

    Freelance Designer | UX/UI & Visual Identity

    I created digital interfaces, visual identities, illustrations, and communication materials for different brands.

    My contributions
    • Worked independently with Figma, Adobe Photoshop, Adobe Illustrator, and CorelDRAW.
    Visit website · Freelancer
  8. Jun 2015 – Mar 2022

    Rota Sul

    Administrative and Financial Manager

    I managed administrative and financial routines, organized operational processes, and supported decision-making. This experience informs my approach to digital products today.

  9. Mar 2015 – Jun 2015

    RZ Arquitetura

    AutoCAD Designer

    An earlier step in my professional journey, working as an AutoCAD Designer.

    Visit website · RZ Arquitetura
  10. Jan 2012 – Mar 2015

    Sierra Móveis

    Production Planning Analyst

    My professional journey began in production planning, before moving into administrative and financial operations.

    Visit website · Sierra Móveis

Engineering, product, and experience

Software engineering

Frontend applications, backend services, and reactive APIs with clear responsibilities and maintainable code.

  • TypeScript
  • React
  • Next.js
  • Vue.js
  • Node.js
  • NestJS
  • Java
  • Spring Boot
  • WebFlux

Quality and operations

Data modeling, caching, automated tests, CI/CD, and observability in the context of real products.

  • PostgreSQL
  • Prisma
  • Redis
  • Docker
  • GitHub Actions
  • Vitest
  • Supertest
  • Dynatrace
  • Grafana
  • Prometheus

Product and design

MVP definition, business rules, UX/UI, and accessibility. Experience in operations and design informs my product decisions.

  • Figma
  • UX/UI
  • Adobe Photoshop
  • Adobe Illustrator
  • Digital illustration

Education

Systems Analysis and Development

Descomplica Faculdade Digital

Completed in 2025

Explore the degree program

Additional training — Rocketseat

Visit Rocketseat
  • Backend development with Node.js — Completed in 2024
  • Frontend development with Next.js — Completed in 2024
  • Backend fundamentals with Java — Completed in 2024
  • Go fundamentals — Completed in 2024
  • AWS fundamentals — Completed in 2025

Languages

  • Portuguese — native
  • English — B1 (self-assessed)

EF SET · 66/100 · C1 Advanced

Reading and listening assessment.

Issued in Aug 2024

View EF SET certificate

Philosophy

Kaizen

Continuous, incremental improvement in every aspect of life and work.
改善

Ikigai

Where passion, mission, vocation, and profession converge to give life meaning.
生き甲斐

Omoiyari

Genuine empathy and proactive care for others, foster harmony, respect, and deeper connections.
思いやり

Shikata ga nai

Embraces the inevitable flow of time and the acceptance of circumstances that cannot be changed.
仕方がない

Space Communication

Let’s talk about products, problems, and opportunities. Use the form to share what you have in mind.

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