Software Engineer with six years of expertise, particularly in Ruby and Ruby on Rails, and a strong command of Python, JavaScript, AWS, and Google Cloud. Demonstrates extensive experience with SaaS systems across varying scales. Career roles encompass Developer, CloudOps, and Product Engineer, highlighting versatility and adaptability. Possesses in-depth knowledge within the Fintech, EdTech, and ConstruTech domains. Expert in Test-Driven Development (TDD) and Behavior-Driven Development (BDD) methodologies. Renowned for exceptional communication skills and a commitment to mentorship and professional networking. Exhibits a perpetual enthusiasm for acquiring new skills and knowledge.

Front-end developer located in Natal, RN, specializing in ReactJS, HTML, and CSS with additional experience in Java, TypeScript, JavaScript, and Dart from academic projects. Dedicated to applying technical skills to develop distinctive user interfaces for innovative projects.

Software Developer with over nine years of experience in system development, with a specialization in PHP, Python, Laravel, Vue.js, JavaScript, and SQL (including MariaDB, Firebird, and MySQL). Expertise encompasses the development of ERP, CRM, and SaaS solutions, with a focus on enhancing usability, efficiency, and simplifying intricate processes. Proficient in data analysis, data modeling, database creation and structuring, as well as system deployment and maintenance. Dedicated to designing intelligent and intuitive solutions aimed at improving user experience and productivity.

Python Developer specializing in web development, with a particular focus on utilizing the Django framework. Demonstrates substantial expertise in PostgreSQL database management and proficiency in GraphQL for efficient data querying and manipulation.

A full-stack developer with one year and three months of experience in web development, specializing in financial management and scheduling applications using CakePHP. As a technical lead on two professional projects, responsibilities included overseeing development and ensuring technical accuracy. In addition to project work, independent studies have been conducted in Spring Boot, Kotlin, and React to deepen understanding of various technologies. The goal is to expand knowledge, improve adaptability, and pursue complex and challenging opportunities in web, mobile, or software development.

Software Developer with over three years of experience specializing in Java, JavaScript, HTML, and SQL within the supply chain sector. Possesses a Bachelor's degree in Information Systems and is actively engaged in postgraduate studies in Software Engineering. Demonstrates expertise in both backend and frontend development, with a robust skill set that includes Java EE (EJB, CDI, JSF, JSP), Spring framework, Apache POI, JQuery, Jenkins, Hibernate technology stack, and unit testing with Mockito. Proficiencies extend to a passion for games, books, sports, and coffee.

Graduated in Control and Automation Engineering with a master's degree in Electrical Engineering, specializing in Computational Intelligence. Academic research emphasizes machine learning and computer vision. With three years of experience as a full-stack developer, current efforts include expanding expertise in data science through courses and project development. Key accomplishments include completion of a Natural Language Processing Nanodegree, a Deep Learning specialization, and a Big Data Real-Time Analytics course with Python and Spark.

Active in web development since January 2009, currently occupying the position of Front-end Tech Lead. Proficient in technologies such as HTML5, CSS3, SASS, JavaScript, ReactJS, NodeJS, GraphQL, and GIT, with substantial knowledge and experience in the VTEX platform. Significant challenges addressed include designing the architecture for a scalable, automated, and fully plug-and-play D2C operation, ensuring swift and secure launches across various countries within the VTEX IO platform.


Fact is a declarative, logic-based programming language designed for writing and verifying formal proofs. It allows users to define logical assertions and relationships, enabling automated reasoning and verification within specified domains.

A Fact expert must possess strong skills in formal logic, automated reasoning, and proof verification. They should be proficient in writing and interpreting logical assertions and have a deep understanding of declarative programming principles. Knowledge of related tools and languages like Coq, Isabelle, or HOL is also beneficial.

How to hire a Fact expert

Fact was a declarative, logic-based programming language developed for formal proof verification. It emerged in the early 2000s as part of efforts to enhance automated reasoning and ensure the correctness of logical assertions within specific domains. The language aimed to streamline the process of writing and verifying formal proofs through a structured, logic-driven approach.

About Fact

Fact's strengths included its declarative nature, which facilitated clear and concise formal proof definitions, and its strong support for automated reasoning. Its weaknesses were limited adoption and a steep learning curve for new users. Competitors included other formal proof languages like 

Fact

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About Fact

How to hire a Fact expert

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