Thinkfully Development

Learning deeply · Building deliberately

Thoughtful interfaces, built from strong foundations.

Junior Web Developer · Full-Stack JavaScript Path

I’m Clebson Costa. I build responsive JavaScript applications using modular architecture, modern tooling, APIs, testing, and thoughtful interface design, supported by a professional background in operations, economics, and data.

Explore my work Explore services
Current path
The Odin Project
Current focus
JavaScript · Data Structures
Workflow
Build · Test · Refactor

01 · About

Technical curiosity, grounded in professional experience.

I am building toward full-stack JavaScript development through The Odin Project, with hands-on experience creating modular applications, working with APIs, managing application state, testing behaviour, and structuring maintainable front-end code.

My development practice now goes beyond isolated exercises: I use modern tooling such as Webpack, npm, ESLint, Prettier, Jest, and Git to build, test, refactor, and deploy complete projects. Recent work has also strengthened my understanding of asynchronous JavaScript, data structures, code organisation, and application architecture.

Before transitioning into development, I built a multidisciplinary background across economics, data analysis, training administration, business operations, and process coordination. That experience helps me approach software with both technical structure and practical business context in mind.

I use AI intentionally as a learning, debugging, and problem-solving partner while keeping ownership of the concepts, architecture, and code I build. My goal is to develop useful digital products with clarity, maintainability, and real-world purpose.

02 · Services

Digital presence built with clarity and purpose.

Practical web solutions for independent professionals, small businesses, and people who need a stronger presence online.

03 · Skills

Current toolkit

The tools and concepts I currently use to build, structure, test, and maintain modern JavaScript projects.

  • HTML5 Semantic structure · Accessibility
  • CSS3 Responsive design · Grid · Flexbox
  • JavaScript ES6+ · DOM · Modules · Application logic
  • Webpack Bundling · Assets · Development workflow
  • npm Dependencies · Scripts · Project tooling
  • Jest Behaviour testing · DOM testing
  • Code Quality ESLint · Prettier · Refactoring
  • Git Version control · Branching · Commits
  • GitHub Repositories · Pages · Project delivery

04 · Selected work

Projects built to make concepts click.

View all on GitHub

Technical practice

Computer science foundations behind the interfaces.

Smaller code-focused projects where I practise algorithms, data structures, testing, and implementation details without a visual application layer.

Data Structures · JavaScript

Linked Lists

A singly linked list implementation built to practise node-based data structures, traversal, insertion, removal, searching, and automated testing.

  • JavaScript
  • Linked Lists
  • Algorithms
  • Jest
  • ES Modules
View source

05 · Learning journey

Progressing from foundations toward full-stack development.

A project-driven path focused on understanding how applications are structured, tested, maintained, and eventually connected across the full stack.

  1. 01 Completed

    Web foundations

    Semantic HTML, responsive CSS, JavaScript fundamentals, Git, GitHub, accessibility, and browser-based application development.

  2. 02 Completed

    Modern JavaScript workflow

    ES modules, npm, Webpack, asynchronous JavaScript, APIs, local storage, linting, formatting, testing, and modular application architecture.

  3. 03 Current focus

    Computer science foundations

    Data structures, algorithms, complexity, recursion, linked lists, problem-solving, and deeper reasoning about how data is organised and processed.

  4. 04 Next

    Full-stack application development

    React, Node.js, Express, PostgreSQL, backend architecture, APIs, authentication, testing, and deployment of complete applications.

06 · Enquiries

Have a project in mind?

Tell me what you need, what you want to achieve, and where you are in the process. I’ll use that context to understand whether Thinkfully Development is a good fit.

Thoughtful projects start with a clear conversation.

Whether you need a landing page, a professional website, a portfolio, or improvements to an existing interface, you can start by sharing a few details below.

GitHub @progritit LinkedIn /in/clebsoncosta