Vitor Cremonez

As the visionary and lead full-stack developer behind neoSVG, a Software-as-a-Service (SaaS) platform, I was responsible for the end-to-end development cycle, from conceptualization to deployment.

Key Accomplishments:

• Architected a robust, Serverless backend utilizing NextJS and NodeJS, ensuring high scalability and cost-efficiency.
• Developed a dynamic front-end interface using React and TypeScript, resulting in an intuitive user experience.
• Engineered high-performance optimizations that significantly enhanced website responsiveness and visual output quality.

Link Here: https://neosvg.com

Scopio is a US-based company that boasts a vibrant and dynamic community of artists.

As the main frontend developer at Scopio, I played a pivotal role in bringing the Scopio app to life. I worked closely with the backend team to optimize API interfaces and collaborated with the design team to ensure the app met all requirements. I put in full-time effort, working mornings, evenings, and nights to bring the app to the life.

After months of dedicated work, including multiple performance improvements and feature reviews, the app was launched publicy on the Apple Store and Google Play.

Another important part of my job was to create the new artist portal. Starting the transition of the company frontend to the NextJS technology.

• Founded meAgendei, a SaaS platform that allows barbers to receive appointments through it online calendar.
• Successfully created a SaaS service from scratch.
• Implemented the full backend features.
• Developed the entire dashboard using NextJS.

• Developed an amazing dashboard using NextJS technology with good SEO and performance.
• Designed the UI/UX interface.
• Implemented simple features such as sign-in, sign-up, account recovery, two-factor authentication, account management, and more.
• Created a multi-time zone calendar interface for easy appointment scheduling.
• Developed an earnings explorer with a visually appealing chart.
• Built a comprehensive company management system.

• Designed and developed all the necessary endpoints that the service required.
• Covered almost 100% of the endpoints with intergration tests.

• Configured all necessary settings for the Postgres database.
• Designed the database tables and relationships.
• Wrote scripts to periodically backup the encrypted database.
• Managed the database using backend migrations for better version control of the tables.

• Deployed the backend on a private server.
• Implemented security configurations including a firewall, SSH authentication, SSL, and more.

• Code faster. Code precise. Code as a machine.
• Create code snippets compatible with your favorite code editor easily.
• Manage and store them in the cloud. Use codessnippet cli to pull at once all updated snippets.

• Created NPM global package. Available at https://www.npmjs.com/package/codessnippet.
• Developed commands to pull cloud snippets into local users machines.
• Integrated and add support to macOS and Windows.
• Published NPM package on NPMJS official registry.
• Added obfuscator to the build final release, getting hard to steal public CLI code base.

• Created ReactJS dashboard to manage and create custom code snippets in the cloud.
• Integrated code editor component to edit code snippet online, with lexical and syntatical problems detection based on selected programming language.
• Available at https://codessnippet.com.

• Created AdonisJS backend to manage code snippets service.
• Managed data using PostgreSQL.

• Deployed the application backend / dashboard in a private server adding all the necessary configuration: Nginx, SSL, Docker, Database, PM2, and more.
• Received 7 stars on github for the contribution to the community. Available at https://github.com/vitorcremonez/codessnippet.

Played a crucial role in developing part of the backend system, adding numerous features along the way. I created a delivery system that can manage multiple timezones and connect with various projects, stores, and servers. I also helped develop various CRUD operations and designed backend database tables and connections. Additionally, I integrated third-party APIs into the system.

Built a giant dashboard in ReactJS from scratch, equipped with a variety of features to help company users manage delivery and sales. I developed the delivery system to manage orders, the system to manage companies, and the upload image system with an image and file editor. I also created a system to manage companies, payment gateway brands, and acquirers, and I ensured that users could choose the payment configuration that their company needed. I also implemented security measures to protect public forms from attacks, as well as an OAuth system to allow users to create their own acquirer system.

Built part of the super app in React Native that works on both iOS and Android. Created the delivery bag system, which allows users to add products to their bag based on their store location. I was involved in developing the navigation system, the delivery home screen, and fluid and performant component rendering. I also built a search engine interface to retrieve general results from the delivery system.

• Launched my first SaaS project with a monthly subscription model, conceptualizing a platform that utilized bots to gather critical information from the marketplace.
• Executed this project from scratch with expertise in the development of the backend, frontend, database, bots, microservices, deployment, landing page, SMS and email configurations, among others.
• Achieved immediate success, with the first subscription being secured within the first hour of launch. The project continues to grow, currently boasting over 500 users with a steady increase in daily growth.

• Created Bots and Crawlers to scan marketplace pages on the internet, trying to extract strategic data from products and sellers.
• Created subscription system to register product and receive daily news about it.
• Created microservice in CakePHP 3.x to act as bot and manage in separated proxy server temporary data.

• Created all backend system in CakePHP 3.x.
• Designed relational database with framework migration system to manage data in PostgreSQL.
• Developed CRUD for users, products, payments, sells, visits and much more.
• Developed communication between servers syncing new bot server/microservice data with main server.

• Created home landing page.
• Created all frontend system using React and Redux.
• Developed style classes with SCSS.

• Configured authorization layers and SSL crypto layer.
• Created massive send email system using AWS SNS.
• Managed all data using PostgreSQL in Docker.
• Launched the application on seller community on the internet.
• Available at https://oanalisador.com.br.

• Created a front end web application 100% Open Source in ReactJS.
• Official repository on GitHub.
• Official demo on GitHub Pages.
• Official release announcement Reddit Post.
• Developed main feature to generate custom NANO Wallet with specific public address prefix.
• Created a high performance C++ virtual wallets generation system, making it possible to find a wallet with a personalized prefix in an ocean of generated wallets.
• Created a multi thread system with web workers process allowing massive wallet generation system for indeterminate time without interrupt browser processes.
• Received 22 stars at the moment on GitHub official repository.
• The Nano Official Twitter account recommended the project to the massive public with over +150k followers Nano Tweet.

Developed a fully open-source React web application that generates a virtual wallet for the cryptocurrency NANO. The application is designed to generate both secret and public key addresses utilizing advanced cryptographic algorithms. The paper wallet design features unique artwork and QR codes for easy and secure offline storage.

• Created a web application 100% open source in React allowing user to generate virtual wallet to cryptocoin NANO.
• Official repository https://github.com/vitorcremonez/nano-paper-wallet
• Official demo https://vitorcremonez.github.io/nano-paper-wallet/
• Official release announcement reddit post.
• Developed the web application to generate a secret and public key wallet addresses based on advanced crypto algorithms.
• Designed the paper wallet with unique art and QR Codes to print and store NANOS out of internet.
• Received 25 stars at the moment on GitHub official repository.
• Received over $400,00 USD of donation from community by the contribution.

• Worked together with another member, a great computer scientist (Pedro Tanaka). Rebuilding from scratch with tons of new features to grow in another cities and universities.
• Pedro was a great mentor at that time, which helps me to improve quickly in many areas.
• After 2 years of hard and intense work. Unfortunately this version never came to life and became huge to deal with many things at same time.

• Helped to design high scalable system with horizontal scalable system.
• Designed to have best technologies and patterns.
• Helped to develop backend in CakePHP 3.x with tons of new features.
• Developed CRUD for generic reactions, users, posts, groups, profiles, photos, messages, chats and much more.

• ** Cancelled after meet ReactJS 🤣 **
• Helped to develop frontend from scratch.
• Developed web chat system.
• Developed post system to create anonymous posts, read comment and much more in univerities groups.
• Created a generic reactions system, allowing users to react, posts, messages, comments, matches, meets, groups and much more.
• Created group and subgroup system, allowing users to participate on groups or your subgroups. Like university group and course subgroup.

• Helped to develop frontend in ReactJS.
• Developed from scratch ReactJS version with all features from angular version.
• Developed a smart chat system with pulling system, embed links, anonymous messages and more.
• Developed hundreds of components.

• Developed iOS and Android apps in React Native.
• Developed the global state system with Redux to save important user data.
• Developed the chat system to deal with thousands of screen messages with high efficiency performance.
• Developed the infinite scroll posts system to deal with high complex components on screen and avoid low performance and app crashes due many stack screens and simultaneous posts lists.
• Created the match system, like tinder, to allow users meet each other based on anonymous likes swiping from left and right.
• Developed many optimizations do deal with thousands of posts, comments, messages, groups and subgroups on limited smartphones specs.
• Created the new chat system with anonymous messages and meetusers function.
• Allowed that users to meet another through anonymous posts.

Spearheaded the full lifecycle development of a successful social network platform, including project planning, UI/UX design, backend and frontend development, marketing videos, deployment, and beyond. Managed all aspects of the project, from concept to launch, resulting in a highly functional and user-friendly platform with a strong user base.

Developed a comprehensive social network platform featuring a range of user-friendly features, including universities groups, universities feed, instant messaging, account management, a Tinder-like match feature, the ability to create anonymous and non-anonymous posts, and the ability to connect with the owners of posts. Contributed to all aspects of the project, resulting in a well-rounded and feature-rich platform.

Launched a successful social network that saw explosive growth, attracting over 400 users within the first 24 hours of its launch.

• Implemented a university group feature with a seamless infinite scrolling experience for posts.
• Designed and developed a responsive web chat system that works seamlessly on both desktops with multiple chat windows, and on mobile devices with a single window.
• Built an efficient pulling system to synchronize messages between users in real-time.
• Created a MEET feature that enables users to connect with each other through anonymous chats initiated from anonymous posts.
• Developed a MATCH feature that allows users to Like each other, and receive notifications when there is a mutual match.

• The social network saw rapid growth, attracting over 400 users within the first 24 hours of its launch and experiencing high levels of usage.
• Within the first 24 hours after launch, the platform received over 20,000 page views, demonstrating strong user engagement.
• Adroitly handled multiple security threats and vulnerabilities, deploying dozens of hotfixes in the first week following the launch to ensure the platform's stability.
• Upgraded the application from a shared server to a Virtual Private Server (VPS) to better handle heavy traffic and improve scalability.
• Enhanced security measures to safeguard against persistent attacks and improve overall platform security.
• Developed a bait page to capture essential information such as IP address, browser, operating system, and software versions from potential attackers, thereby providing valuable insights for security improvements.

• Graduated from Londrina State University, consistently ranked among the top 4 state universities in Brazil by authoritative sources such as topuniversities.com and uel.br.
• Secured admission to the highly competitive Computer Science program at Londrina State University through a rigorous entrance exam.
• Completed a 4-year full-time Computer Science degree program.
• Developed a social network as a curricular project, demonstrating technical proficiency and project management skills.
• Concluded the program with a final paper that presented an algorithm to measure the compatibility of users on MeetU by analyzing their interests.

This was my first significant project, taking care of the project from ideation, to deployment. Actively involved in every aspect of the project, including conceptualization, backend development, UI/UX design, marketing, deployment, and maintance.

Developed and maintained a YouTube-like social network and game platform that featured a collection of flash games, complete with user interaction elements such as a commenting section, likes, and other features. Contributed to the full lifecycle of the project, from planning to deployment.

• Created comment section feature for each game page.
• Created like and dislike games feature, similar to youtube.
• Created views feature to measure game popularity.
• Created favorite game feature.
• Developed dynamic website front end with HTML and CSS generating directly from PHP backend improving SEO.
• Managed user data with MySQL database.

• Developed script to download massive Flash games from another similar websites.

• Deployed application in shared server via FTP.