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Dionicio
From Dominican Republic (UTC-4)
8 years of commercial experience
Lemon.io stats
1
projects done664
hours worked1
offers now 🔥Dionicio – React, JavaScript, Typescript
Dionicio is a seasoned front-end developer with six years of expertise in React. He has comprehensive experience in creating applications from concept to support phases. Dionicio is adaptable in communication, ensuring clear interactions, even when faced with unfamiliar topics. This flexibility makes him adept at working with end customers to deliver successful projects.
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Let’s get started today!Experience Highlights
Senior Front-end Developer
The world's #1 self-improvement system and community. The products help keep people on there ir A-game and more focused, confident, resilient, and driven to win life!
GrowthDay aims to inspire personal growth by helping users set and achieve goals, track habits, and engage in continuous self-improvement with tools like:
- Daily Growth Streaks: Encourages consistency through daily journaling, checklists, and habit tracking.
- Journaling & Goal Setting: Built-in tools for reflection, planning, and tracking personal progress.
- Community Engagement: Users can view each other’s achievements, fostering motivation and accountability.
- Redesigned the existing front end into Next.js;
- Wrote unit tests with Jest, integration, and e2e in GitHub actions;
- Implemented a new video player for media visualization;
- Refactor all GraphQL queries on AWS Amplify and Cognito
Senior Web Developer
This platform delivers unique local content and network programming to inform and entertain viewers while providing premium, scalable local advertising opportunities for advertisers and brands across all screens and devices.
- Created beautiful interfaces based on UI/UX designs;
- Developed fully functional web applications by writing clean code;
- Created and executed unit and UI tests to identify malfunctions;
- Supported the entire application lifecycle, including concept, design, test, release, and support phases;
- Retrieved specific requirements and suggested solutions to improve user experience;
- Evaluated and debugged mobile applications to optimize their performance;
- Found and suggested new web products, applications, and protocols.
FullStack Javascript Engineer (Frontend Specialist)
An ever-growing set of (decentralized) apps where the client can create, share & discover content; mint, buy, & store NFTs; store & manage all their cryptocurrencies and more. But all the revenue goes to the client only.
- Created a Crypto Currency wallet with JavaScript-related technologies;
- Built software products, including tooling, web services, and desktop applications;
- redesigned the existing desktop application into a new Electron + React platform with Next.js;
- Architected the Auto Update desktop feature for different desktop operating systems;
- Researched, developed, and implemented software based on analyzed requirements and understanding of industry technical standards;
Senior Developer (Frontend Focus)
Genius Plaza provides access to quality education for all students as a gateway to power and opportunity.
The project aimed to create the Genius village Ecosystem based on multiple products that help leaders protect, track and improve the health, education, and data privacy of their loved ones.
During my time at Genius Plaza, I worked on projects that adhered to both HIPAA and PCI compliance standards. This experience has given me a strong understanding of the importance of data privacy, security protocols, and regulatory requirements in software development.
- Developed fully functional web applications writing clean code;
- Created and executed unit and UI tests to identify malfunctions;
- Supported the entire application lifecycle, including concept, design, test, release, and support phases;
- Retrieved specific requirements and suggested solutions to improve user experience;
- Evaluated and debugged mobile applications to optimize their performance;
- Found and suggested new web products, applications, and protocols;
- Contributed to and followed our workflow process alongside the rest of the Frontend Engineers;
- Designed, installed, and tested the website's user interface elements;
- Focused on the website's functionality and look of a website;
- Understood the various information a website has and created a plan for structuring the website and how best to present the information on the website or web application.
Front-End Developer
The Hibooks project was a personalized audiobook platform originally designed to transform how users experience spoken content. Founded in 2014 and formerly known as Otto Radio, Hibooks offered a mobile and web application that allowed users to stream or download audiobooks, podcasts, and news content across various genres, including crime, romance, sci-fi, and non-fiction.
The company emphasized a user-centric design and robust backend infrastructure to support secure content delivery and analytics.
- Built and maintained dynamic user interfaces using Vue.js and React Native, ensuring a responsive and intuitive user experience across web and mobile platforms.
- Replicated Native Functionality such as an audio Player on React Native;
- Monitored and reported bugs with Sentry and DataDog;
- Integrated Stripe for secure and reliable payment processing, including subscription management and billing workflows.
- Created the initial MVP of Hibooks React Native Application and Web Platform.
- Contributed to the brainstorming of the product;
Front-End Developer
Creation of an app like Audiobooks.com. The team managed to build the Web APP in 3 months. After the Web App was built, the team saw an increase from 6000 to 38000 annual subscriptions. The client was very happy as 92% of those 32000 subscriptions were made from the Web app.
- Developed new features and user interfaces from wireframe models;
- Created beautiful interfaces based on UI/UX designs;
- Ensured the best performance and user experience of the application;
- Created code for the website and tested it to ensure its functionality;
- Monitored websites to ensure they continued to run properly and made modifications as needed;
- Ensured that web design was smartphone capable;
- Streamlined and optimized loading speed.