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Stefan Andrei

@stefanandrei1

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Full-stack engineer specializing in React (Next.js, TypeScript), building type-safe, high-performance web applications.

Romania

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What I'm looking for

I want to build type-safe React/Next.js products end-to-end—owning features, optimizing performance, and delivering pixel-perfect, mobile-responsive UX with robust Node.js/NestJS backend APIs.

I’m a Frontend & Full-Stack Engineer with 4+ years of experience specializing in the React ecosystem (Next.js, TypeScript). I deliver type-safe, scalable web applications, optimizing dashboard performance and managing complex global states with Redux and Zustand.

Most recently, I worked as a Software Engineer Contractor for Aurora Agency (Remote), where I designed and implemented the AffiliateModule from scratch using NestJS backend logic and a high-performance Next.js frontend. I also built security and auth features like a Login Backup Code, created an Admin CRM with complex datatables/filtering/CRUD, and polished UI/UX and mobile responsiveness using TailwindCSS.

Earlier, I built and shipped React-based products as an Independent Contractor, acting as a technical consultant for local businesses and handling full-cycle delivery from UI/UX wireframing to deployment and maintenance. At Flowerwork, I reduced dashboard load time by ~30% with Next.js and TailwindCSS, integrated Rust-based backend APIs to cut auth issues by 40%, and improved delivery by standardizing the GitHub PR process.

Before that, I supported small-to-medium React landing pages and personal/client-driven projects as a Freelancer (2017–2024). I also bring an attention to reliability from QA work at Ubisoft (150+ bugs logged), and I continue strengthening my foundation through Full Stack Web Development (The Odin Project) and CS50X/Computer Science coursework.

Experience

Work history, roles, and key accomplishments

Software Engineer

Aurora Agency

Sep 2025 - Jan 2026 (4 months)

Designed and implemented an AffiliateModule from scratch, building backend logic with NestJS and integrating it with a high-performance Next.js frontend. Developed a LoginBackupCode security feature, managed complex dashboard state with Redux, and delivered admin CRM functionality with Next.js and Redux.

NestJS Next.js Redux Authentication Security State Management UI UX

Software Developer

Independent Contractor

Jan 2025 - Sep 2025 (8 months)

Built and deployed scalable web applications and landing pages using React, following modern front-end practices including hooks and component-driven architecture. Served as a technical consultant for local businesses and managed full-cycle delivery from UI/UX wireframing to deployment and maintenance.

React React Hooks Frontend Architecture State Management Responsive Design Performance Optimization Technical Consulting

Fullstack Developer

Flowerwork

Sep 2024 - Dec 2024 (3 months)

Built high-performance dashboards with Next.js and Tailwind CSS, reducing load time by ~30%. Integrated Rust-based backend APIs to optimize signup/login and reduced auth issues by ~40%, while improving the GitHub PR process to decrease merge conflicts by ~25%.

Next.js Tailwind Rust Backend Authentication Performance Optimization

Freelancer

Jan 2017 - Jan 2024 (7 years)

Built small-to-medium landing pages for local businesses and personal projects using React, focusing on responsive layouts and cross-device performance. Provided support and iterative updates for client-driven work, leading to positive feedback and continued collaboration.

React Landing Pages Responsive Design Frontend Development

QA Game Tester

Ubisoft

Jan 2016 - Jan 2017 (1 year)

Logged 150+ bugs and collaborated with the development team to improve software stability. Participated in testing workflows to help ensure product reliability.

Bug Reporting QA Testing Teamwork