Hi, I'm

Nicole
Illera.

Full-stack engineer building mobile apps
with the people who use them in mind.

Currently working withReactNext.jsReact NativeExpoTypeScriptAWSConvexTailwind

About

I build full-stack products end-to-end —
from backend systems to polished interfaces.

I'm Nicole — a full-stack engineer focused on turning messy product requirements into usable, reliable software. I work mostly in React, Next.js, React Native and Expo, with TypeScript, AWS, PostgreSQL and Express on the backend.

At Parfour, I built across the web, mobile, and cloud stack: internal admin tooling, the Next.js web app, real-time streaming experiences, digital scorecards, social features, and AWS-backed services for auth, storage, and processing.

Before moving into full-stack product engineering, I worked in QA across mobile and web apps. That background still shapes how I build: I care about edge cases, clear feedback, accessibility, and interfaces that hold up outside the happy path.

Nicole Duchitanga-Illera

Full Stack Engineer

Based in

Queens, NY

Focus

Mobile and AI

Experience

Where I've built, tested, and improved products.

2025 — 2026

Remote

Full Stack Founding Engineer

Parfour

Built across Parfour's full stack — web, mobile, admin, and cloud — to support real-time sports features and internal tooling.

Built an internal React/TypeScript admin platform for content moderation and site operations
Architected the Next.js web app — streaming features, digital scorecards, and infinite-scroll social feeds
Built Expo/React Native mobile features to keep mobile on par with web
Maintained AWS services — DynamoDB, Cognito, API Gateway, and Lambda

ReactNext.jsReact NativeExpoTypeScriptAWS

2022 — 2025

Remote

Quality Assurance Tester

UserTesting

Tested mobile and web apps across industries, focusing on usability, performance, and edge-case reporting.

Ran manual QA across mobile and web workflows to surface bugs, usability issues, and performance bottlenecks
Evaluated UI/UX for design consistency, responsiveness, and intuitive interactions
Delivered structured bug and edge-case reports to product and engineering teams

Manual QAMobileWebUI/UX

Projects