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RED 80s

RED 80s

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Crafting accessible, performant experiences with modern web technologies.

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LocationAthens, Greece

Phone+30 6976080812

Emailnikosmastragelis@gmail.com

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© 2026 Nikos Mastrangelis - Full-Stack Engineer

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I buildweb applications

Passionate full-stack engineer with 7+ years of experience building scalable web applications and AI-powered solutions. Specialized in React, Node.js, Next.js, and modern web technologies.

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Nikos Mastrangelis
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About Me

Get to know me better

I'm a full-stack developer with 7+ years of experience building production-grade web applications and AI-powered solutions. My expertise spans the entire development lifecycle—from architecting scalable systems to implementing seamless user experiences. My journey in tech began with a fascination for how things work, which led me to pursue Computer Science and eventually specialize in web development.

My Approach: I prioritize clean, maintainable code with continuous integration. My experience ranges from early-stage startups to enterprise environments, giving me perspective on agile methodologies and scalable architecture patterns.

“Truth can only be found in one place: the code.“
-
Robert C. Martin, Clean Code: A Handbook of Agile Software Craftsmanship

What I Do: I specialize in full-stack development using React, Next.js, and Node.js ecosystems. Currently, I focus on integrating AI capabilities into web applications, leveraging OpenAI's GPT models and building intelligent agents. I'm also experienced in cloud infrastructure and modern DevOps practices including CI/CD pipelines and containerization.

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Projects Completed
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Client Satisfaction
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Years Experience
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Technologies Mastered

Skills & Expertise

A comprehensive overview of my technical proficiencies and tools I work with daily

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Featured Projects

Scroll to explore my best work

Screenshot of GTA Landing Page project

GTA Landing Page

A modern, responsive site that brings high-impact motion design to life on the web

  • GSAP
  • Three.js
  • JavaScript
  • Vite
Screenshot of AI Stock Market project

AI Stock Market

AI-powered modern stock market app built with Next.js, Better Auth, and Inngest.

  • Next.js
  • Inngest
  • Gemini
  • Tailwind CSS
  • Better Auth
  • Node.js
Screenshot of The AI Podcast project

The AI Podcast

A cutting-edge AI SaaS platform that enables users to create, discover, and enjoy podcasts with advanced AI features.

  • Next.js
  • TypeScript
  • Tailwind CSS
  • OpenAI
Screenshot of Devstack Overflow project

Devstack Overflow

Devstack Overflow is a complex Q&A platform for developers to ask questions, share knowledge, and learn from each other.

  • Next.js
  • Tailwind CSS
  • MongoDB
  • TypeScript
  • OpenAI
Screenshot of iPhone 15 Pro website project

iPhone 15 Pro website

Apple's iphone 15 website highlighting the use of GSAP and Three.js for displaying iPhone 15 Pro models shapes.

  • Three.js
  • React
  • Tailwind CSS
  • GSAP
  • Vite
  • Node.js
Screenshot of Gaming Landing Page project

Gaming Landing Page

A visually captivating website, featuring scroll-triggered animations, geometric transitions, and engaging video storytelling.

  • React
  • Node.js
  • JavaScript
  • GSAP
  • Tailwind CSS
  • Vite

Services

What I can do for you

Full-Stack Web Applications

End-to-end development of scalable, modern web applications using industry-leading technologies, tools and AI.

  • Frontend development with Next.js and React.js
  • Cross platform mobile development with React Native or Capacitor
  • Robust backend API design (REST & GraphQL)
  • Secure authentication and role-based access control
  • Database architecture and optimization (SQL & NoSQL)
  • Cloud deployment and CI/CD pipeline setup
  • Mobile-first responsive design

Performance, Accessibility & SEO

Optimize your digital presence for speed, inclusivity, and visibility. I ensure your site is fast, accessible to all users, and ranks well.

  • Core Web Vitals optimization (LCP, CLS, INP)
  • WCAG 2.1/2.2 accessibility compliance audits
  • Technical SEO and structured data implementation for better ranking
  • Code splitting, lazy loading, and asset optimization
  • SSR, ISR and SSG strategies
  • Keyboard navigation and screen reader compatibility
  • Lighthouse score improvement

AI, 3rd party and CMS integration

Connect your business tools and manage content with ease. I specialize in Stripe, Shopify, and Headless CMS integrations.

  • Stripe payment gateway integration (Subscriptions, Checkout)
  • Shopify Storefront API development
  • Headless CMS setup (Sanity, Contentful, Strapi)
  • Third-party API integrations (CRM, Email, Analytics)
  • AI Chatbots and Agentic workflows
  • Webhook handling and event-driven architecture
  • Custom dashboard development for data visualization

Latest Blog Posts

Thoughts, tutorials, and insights

Exploring the Benefits of shadcn/ui
Web Development

Exploring the Benefits of shadcn/ui

Discover how shadcn/ui offers a new approach to component libraries, prioritizing developer control and customization.

December 15, 2025
7 min read
Read MoreRead More about Exploring the Benefits of shadcn/ui
Comparing Biome and ESLint: A Comprehensive Guide
Tools

Comparing Biome and ESLint: A Comprehensive Guide

Explore the strengths of Biome and ESLint, two powerful tools for code quality and linting.

December 8, 2025
8 min read
Read MoreRead More about Comparing Biome and ESLint: A Comprehensive Guide
Revolutionizing Code Quality with AI-Powered Code Review Tools
Tools

Revolutionizing Code Quality with AI-Powered Code Review Tools

Explore how AI-powered code review tools are transforming code maintenance, enhancing quality when paired with human expertise.

December 3, 2025
7 min read
Read MoreRead More about Revolutionizing Code Quality with AI-Powered Code Review Tools
React 19.2: Transforming Application Development
Web Development

React 19.2: Transforming Application Development

Explore the powerful features introduced in React 19.2, including the Compiler, Activity Component, and useEffectEvent, which enhance performance and code quality.

November 28, 2025
5 min read
Read MoreRead More about React 19.2: Transforming Application Development
Exploring the New Features of Next.js 16
Web Development

Exploring the New Features of Next.js 16

Discover the major improvements in Next.js 16 with Turbopack, async APIs, and PPR for faster web applications.

November 25, 2025
8 min read
Read MoreRead More about Exploring the New Features of Next.js 16
Exploring the New Features of Storybook 10
Web Development

Exploring the New Features of Storybook 10

Discover the enhancements in Storybook 10, focusing on performance, testing capabilities, and developer experience.

November 20, 2025
7 min read
Read MoreRead More about Exploring the New Features of Storybook 10
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Get In Touch

Wherever you are in the world, let's work together on your next project.

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