Clean code. Products that matter.

Front-end and mobile engineering focused on fast, accessible, well-architected experiences, from the interface down to how it feels to use.

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About

From the first line of code to a product in someone's hands.

Photo of Nikollas Ohta, front-end developer

A software developer passionate about building for the Web, turning ideas and problems into fast, accessible, well-thought-out experiences, with code I'm also proud to maintain.

I'm Nikollas, a Front-End Developer at E/Code Digital since May 2024, working daily with React, TypeScript, Next.js, TailwindCSS, and TanStack Query, always aiming for solid, well-tested interfaces (Playwright for E2E).

I hold a degree in Information Systems from UNIPAR. Before moving into development, I was an IT intern at the Umuarama Municipal Health Department, an experience that taught me to apply technology to real problems, outside the coding bubble.

I like going beyond the day job: I maintain RFinance, a personal finance project built from scratch (TanStack frontend on Vercel, NestJS backend with Drizzle ORM/PostgreSQL on Render), my space to experiment with architecture and ideas.

  • React
  • TypeScript
  • Next.js
  • Node.js
  • NestJS

Open-source projects

Projects on GitHub

My repositories with public description and metadata:

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Experience

Professional experience

  1. Front-End Developer · E/Code Digital

    May 2024 – Present

    Front-end development for more than ten systems, back-office platforms and landing pages, focusing on WCAG accessibility and performance (Web Vitals, Lighthouse). Unit and automated test coverage, component-based architecture, RESTful API integration, and agile SCRUM development.

    • Git
    • GitHub
    • Docker
    • TypeScript
    • React
    • TailwindCSS
    • Figma
    • Playwright/Jest
    • Next.js

  2. IT Intern · Secretaria Municipal de Saúde de Umuarama

    August 2022 – May 2024

    Help desk support for the Gestor Saúde (DB1 Group) and e-SUS APS (Brazilian Ministry of Health) systems, training more than 80 users. Developed the front end of an integrative solution for the National Dengue Control Program.

    • TypeScript
    • React
    • TailwindCSS

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