Graduated in Systems Analysis and Development from the Federal University of Technology - Paraná (UTFPR), Campos Medianeira in 2012, followed by a Master's degree in Computational Technologies for Agribusiness (2018) from the same institution with a dissertation focused on "Web Application for Milk Collection Logistics". Currently occupying the position of System Analyst at Parque Tecnológico Itaipu. Possesses more than seven years of comprehensive experience as both a back-end and front-end developer, with significant specialization in web application development. Demonstrates extensive proficiency in web programming utilizing Java, JavaScript, Spring Boot, Angular, and PostgreSQL.

Fullstack Game Programmer with six years of experience in Unity3D (C#), specializing in multiplayer games. Prioritizes software quality, adherence to versioning standards, and best development practices to ensure product maintainability and resilience. Demonstrates a broad range of web knowledge, alongside skills in 2D/3D design, animation, and video/image editing, reflecting a strong capacity for learning across diverse domains. Portfolio available at [jovdev.com/joveem](https://jovdev.com/joveem).

Celso is a self-taught developer with a strong dedication to continuous learning and professional growth. His passion for coding extends beyond his career and into his personal interests. He operates under the belief that there is always room for improvement and strives to better himself both professionally and individually.

Currently, he seeks new opportunities to join a team of high-caliber experts, aiming to enhance his skills and experience. He aspires to advance to a Senior Developer role and eventually to a Tech Lead position in a prominent organization.

Graphic Designer with six years of experience, specializing in the development of innovative and strategic design solutions aimed at improving organizational performance.

Front End Developer with five years of experience in web development, specializing in technologies such as React.js, JavaScript, Vue.js, HTML, and CSS. Proficient in Typescript for two years and extensive experience with Node.js. Demonstrates consistent expertise in version control utilizing Git, complemented by a practical understanding of DevOps methodologies over a two-year period. Additionally experienced with Salesforce Lightning and possesses skills in Angular 3 developed over three years. Maintains a strong commitment to continuous learning and collaboration, consistently contributing to organizational growth while upholding excellent team performance and professional standards.

Neuroscientist leveraging over eight years of expertise in digital product management, with a focus on user-centered strategies and data-driven insights. Demonstrates a consistent history of delivering comprehensive solutions encompassing research, launch, optimization, and management of various products, solutions, and services. Currently oversees data services/products and spearheads new product initiatives, leading multidisciplinary teams skilled in product management, research, design, data engineering, analytics, and software development. Possesses diverse experience across multiple sectors, including marketing technology, advertising technology, e-commerce, beauty technology, retail technology, education technology, financial technology/payment systems, and Software as a Service (SaaS). Engages in research on cognitive processes within gaming and other digital experiences.

Front-end developer with three years of experience in web application development. Specializes in utilizing technologies including Angular, Typescript, Bootstrap, and Git. Skilled in consuming Rest APIs for practical application development.

Front-end Developer with over seven years of experience in web development, demonstrating a comprehensive skill set in React.js/React Native, Vue, Javascript/Typescript, HTML, and various styling technologies such as CSS, SASS, Less, SCSS, and CSS in JS. Proficient in back-end technologies, including NestJs and PostgreSQL, as well as server-side development with Node.js. Adept in containerization using Docker and skilled in constructing scalable architectures via Microservices and Micro frontend strategies. Expertise in testing frameworks such as Jest, Enzyme, and Testing Library, coupled with experience in module bundling through Webpack. Employs Github for version control and follows Agile methodologies for effective project management. Familiar with CI/CD practices for seamless deployment processes and possesses a strong understanding of UX/UI design principles. Additionally, holds a basic knowledge of Ruby/Rails, Python, and Java, which underscores a well-rounded grasp of diverse programming paradigms.

Square is a financial technology product that facilitates payment processing for businesses. It provides point-of-sale solutions, allowing merchants to accept credit card payments through mobile devices and tablets. Square also offers additional services like invoicing, inventory management, and analytics to streamline business operations.

A Square expert must possess skills in payment processing systems, data analysis, and point-of-sale technology. Proficiency in using Square's software and hardware, understanding of integration with other business tools, and the ability to troubleshoot technical issues are essential. Familiarity with financial regulations and security protocols related to payment processing is also important.

How to hire a Square expert

Square was created in 2009 by Jack Dorsey and Jim McKelvey to address the need for small businesses to accept credit card payments easily. The product emerged from the idea of enabling anyone to process transactions using a mobile device, thus democratizing access to payment systems traditionally reserved for larger businesses.

About Square

 included its user-friendly interface, ease of setup, and comprehensive ecosystem offering various business tools. Weaknesses involved higher transaction fees for some users and limited customer support options. Competitors included PayPal, Stripe, and 

, which also provided payment processing solutions with varying features and pricing models.

Square

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About Square

How to hire a Square expert

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