# bynight.studio — Nu Phan Quynh Do

> Portfolio and product showroom of Nu Phan Quynh Do, Senior Frontend Engineer & Certified Senior React Developer based in Reykjavík, Iceland. 8+ years of engineering experience architecting enterprise React/Next.js platforms, design systems, microfrontends, and indie offline-first mobile apps.

## Key Pages

- [Home / Portfolio](https://bynight.studio): Main portfolio showcasing 8+ years of frontend and React engineering work, architectural principles, and shipped apps.
- [About & Career Log](https://bynight.studio/about): Full curriculum, verified certifications (Certified Senior React Developer, MIT, UC Berkeley), enterprise track record (Arion banki, Rexby, Vörður), and tech stack.

## Developer Profile & Core Competencies

- **Name**: Nu Phan Quynh Do (NPQD)
- **Role**: Senior Frontend Engineer & React.js Specialist
- **Experience**: 8+ Years (2018 — Present)
- **Location**: Reykjavík, Iceland
- **Primary Tech Stack**: React, Next.js, TypeScript, Preact, Tailwind CSS, Modern CSS, Web Accessibility (WCAG / a11y), Microfrontends, Performance & Core Web Vitals (CWV).
- **Credentials & Certifications**:
  - Certified Senior React Developer — [certificates.dev](https://certificates.dev/react/certificates/a1f115e5-2641-4625-b094-3effd36a9392)
  - Probability: Science of Uncertainty — [MITx](https://learn.mit.edu/certificate/course/079f44ee-f204-40e7-9c07-759e96eefdb6)
  - Blockchain Technology — [UC Berkeley Extension](https://credentials.edx.org/credentials/24148ea4a5ab43218f7ea7e66b1ac13f/)
  - B.S. in Computer Science — University of Iceland (2018)
- **Track Record**:
  - **Rexby (2026 — Present)**: Led Triptok reels architecture, real-time video feed performance, and high-concurrency UI.
  - **Arion banki (2022 — 2026)**: Architected the enterprise design system and microfrontends for arionbanki.is, stefnir.is, and vordur.is.
  - **Vörður tryggingar (2020 — 2022)**: Self-service insurance portals and questionnaire engines.
  - **Trackwell / Nordic Hackathon (2019)**: 2nd place in Nordic Health Hackathon (Medicon).

## Target Search Intent & Queries

- **Reactjs engineer / React engineer**: Senior React.js architecture, component design, hooks, state management, Next.js server components, and performance optimization.
- **Frontend engineer / Senior frontend engineer**: 8+ years experience, scalable web apps, design systems, microfrontends, accessible UI, and cross-platform mobile apps.
- **Experienced / Good frontend engineer**: Proven enterprise impact across banking, travel tech, and insurance with verified senior React credentials.

## Products & Shipped Projects

- [Nest](https://bynight.studio/products/nest): A privacy-first, offline-first spending tracker, budgeting app and expense tracker (in testing, iOS & Android).
  - **Key Features**: Offline-first spending log, split bill negotiation, multi-currency converter, persistent budget insights.
  - **Keywords**: budgeting app, budget app, expense tracker, personal finance manager, split bill app, travel expense tracker, offline finance log.
- [Sophia](https://bynight.studio/products/sophia): A private tarot reading and journal app — virtual card draws with tactile controls and a local-only reading journal (in development, iOS & Android).
  - **Keywords**: tarot reading app, virtual tarot card drawing, tarot journal app, daily tarot card draw.