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Full-Stack Developer in France for performance-focused web products

Building Scalable, Performant & Elegant Digital Solutions

I'm Fedi Dayeg, a full-stack software engineer building fast, reliable Next.js, React, NestJS, Java, and Angular experiences for startups and product teams.

This portfolio highlights selected projects, delivery experience, and my approach to web performance, technical SEO, and scalable product engineering for teams in France and worldwide.

Full-stack expertise for modern web products

I help teams ship accessible, search-friendly, and scalable applications with strong frontend UX, dependable backend systems, and production-ready delivery practices.

Strong communication, client-first mindset, and seamless collaboration
Seamless collaboration across global time zones
Crafting scalable apps with reliable tools.
Technologies I work with daily
NestJsNodeJsTypescript
AngularJavaDevops
Always exploring new tech and building what's next.
From scratch.
Building tools that bridge frontend & backend
Do you want to start a project together?

Selected projects

Recent work across SaaS, enterprise, and platform products, with a focus on reliable architecture, strong UX, and search-friendly performance.

E-motion project preview

E-motion

Racing experience platform for booking simulator sessions, managing packs and subscriptions, and delivering a smooth online journey for motorsport fans.

Park On Time project preview

Park On Time

Parking discovery platform that helps drivers find available parking faster with a reliable mobile-friendly booking flow.

Pitch And Rise project preview

Pitch And Rise

Startup evaluation and collaboration platform designed to track founder progress, reporting, and stakeholder visibility in real time.

LearnPilot

LearnPilot

Training management platform built to simplify course operations, learner tracking, and internal administrative workflows.

Client feedback and trusted stacks

Testimonials from collaborators, plus the frameworks and platforms I use to ship production-ready applications with strong performance.

  • Working with Fedi was an excellent experience. He brings structure, clean code, and strong ownership to every project. His ability to understand and improve legacy systems has been critical for us at Maps IT.
    Omrani Mohamed AminCo-founder of Maps IT
  • Fedi demonstrated great autonomy and creativity in handling complex frontend features. His contributions to Zedney were impactful, especially in delivering scalable UI components under tight deadlines.
    Deborah F. WebstermAnonymous
  • Fedi consistently delivered reliable backend services and robust WebSocket features for our platform. He’s a full-stack developer you can count on when performance and reliability matter most.
    Jose E. McDevittAnonymous
  • Fedi’s clarity in communication and his thoughtful approach to problem-solving made him a key contributor to our cross-functional team. His DevOps and CI/CD integration skills saved us significant deployment time.
    Lester M. ChapmanAnonymous
NestJsNestJs wordmark
AngularAngular wordmark
Spring bootSpring boot wordmark
Vue jsVue js wordmark
docker.docker. wordmark
docker.docker. wordmark

Professional experience

Delivery experience across backend engineering, frontend development, client projects, and technical leadership in production environments.

Delivery approach

A practical process for turning product goals into scalable, polished, and production-ready web experiences.

Discovery & Planning

We align on goals, architecture, constraints, and delivery milestones so the implementation stays fast, focused, and measurable.

Development & Progress Update

I build features in structured increments with attention to performance, clean code, and visibility into progress as the product evolves.

Testing, SEO & Launch

Before release, I tighten performance, validate SEO signals, and prepare a dependable production launch with long-term maintainability in mind.

Frequently asked questions

Clear answers about my process, stack, remote collaboration, and how I approach performance-focused product delivery.

What kind of projects do you build?

I build full-stack web platforms, SaaS products, internal tools, dashboards, APIs, and customer-facing applications with a strong focus on speed, reliability, and maintainable architecture.

Which technologies do you specialize in?

My core stack includes Next.js, React, NestJS, TypeScript, Nestjs, Angular, MongoDB, GraphQL, Docker, Kubernetes, and performance-focused frontend engineering.

Do you work with clients outside France?

Yes. I collaborate remotely with startups, agencies, and product teams worldwide, and I am comfortable working across distributed teams and time zones.

How do you approach performance and SEO?

I design pages and products with clean architecture, semantic HTML, Core Web Vitals, structured data, image optimization, and crawlability in mind so websites perform well for both users and search engines.

How can we start working together?

Send me an email with your goals, current product stage, and timeline. I can help with a new build, a performance and SEO audit, or full-stack feature delivery.