Nycollas.dev
Frontend • React Native • React • TypeScript
Nycollas Duarte
I build modern, high-performance interfaces for web and mobile, with a strong focus on user experience. I've developed complete applications — from design to deployment — delivering fast, reliable solutions for companies in Brazil, the United States, and Israel.
Projects
Dinzo
Dinzo is a personal finance management app that consolidates accounts, cards, and expenses into a modern and intuitive platform. Focused on simplicity and automation, it enables users to track transactions, set goals, and visualize smart insights to maintain full control over their finances.
DOD Questões
Custom quiz and mock test app for law students, featuring interactive and traditional modes focused on learning reinforcement and performance tracking.
Cargill Bioenergia
Corporate mobile app for employees of Cargill Bioenergia that provides streamlined access to payslips, scheduled vacations, time-clock history, hours bank, internal communications, and institutional content — all in a modern, user-friendly mobile interface.
Shareitt
Global platform for sharing and exchanging goods and skills within communities, featuring a point-based system, notifications, and user engagement tools.
Ziptime
Intuitive CRM platform designed for sales teams and freelancers. Ziptime allows you to streamline your sales pipeline, register and track prospects, get timely follow-up notifications, and monitor performance in real time so you can focus on what matters most.
Caule App
An employee-centric mobile platform streamlining HR and staff communication by offering instant access to payslips, vacation statements, time bank, and real-time notifications. Trusted by over 30k users.
Your Project Here
How about seeing your app, startup, or digital idea become the next highlight on this list? Let’s build something amazing together.
Get in touch ✉️Experience
Codex Remote🇧🇷
2 years 11 months - The moment
Porto Alegre, Brasil
I developed an application that combines accident reports and real-time location data. This application aims to provide crucial information for a rapid and effective tracking response, contributing to improved management of emergency situations.
Shareitt🇮🇱
5 months
Israel
At Shareitt (an item-exchange app), I developed the event creation feature — both online and in-person — used by thousands of users. Contributed to refactoring legacy code (React Native 2019 → 2023), resulting in better readability and performance.
Capped Out Media🇺🇸
5 months
Utah, United States
Worked on the GGC app, integrating maps, social networking, and marketplace into a single platform. Responsible for API integrations with geolocation and social authentication. Delivered ahead of schedule while maintaining full cross-platform compatibility.
Nano Incub🇧🇷
2 years 11 months
São Paulo, Brazil
Developed and maintained 8 mobile and web applications across education, government, media, and HR sectors. Led the full development of two apps published on the stores — DOD Questões and SJC Bioenergia — totaling thousands of downloads.
About
I'm a frontend developer specialized in mobile experiences, building complete applications that merge performance, design, and usability. With 5 years of experience, I've worked on projects for companies in Brazil, the US, and Israel.