Saif Eddine Marsit is a full-stack engineer and freelancer
5 years of Engineering. Tunisian. Working worldwide.
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I’ll audit your site for free before you invest a cent.
Most agencies pitch first and deliver later. I do it the other way around. Drop your URL and I’ll send you a detailed audit report on performance, SEO, UX, and conversion gaps, with concrete fixes you can act on immediately.
“His technical expertise, attention to detail, and ability to troubleshoot challenges on the fly were impressive.”
- Hamza B., CEO @ZenithTech
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30 seconds to fill out. Your report lands in your inbox within 48 hours.
No spam. No sales pitch. Just a genuine audit of your site.
I don’t just write code. I solve business problems with software.
Building since my teens: graphic design and video first, then engineering. I freelanced through university, shipped real client work, and kept every delivery remote and production-grade.
Today I’m a Frontend Engineer at a French company and consult for clients in Tunisia, France, and Dubai. 5+ years, 20+ clients, and most came back or referred someone. This isn’t a career I picked: it’s what I’ve always done.
What pulls me in: projects that must scale. Heavy traffic, distributed systems, business logic most developers sidestep. The harder the problem, the better the work.
Recent work. Real clients, live products
MediConnect
Medical management platform integrating YOLOv5 signature verification and an AI diagnostic chat module. Docker-deployed with CI/CD pipeline.
GhostProd
Showcase website for an audiovisual production brand. Designed to highlight creative work through cinematic visuals and smooth interactions.
TrustGym
70-screen enterprise gym management application built from Figma specs in Next.js. Delivered production-ready within a 2-week sprint.
Technologies I ship with daily.
Engineering that ships
Platform Engineering · Performance Engineering · Data & Backend Systems · Interactive 3D & Web Experiences · DevOps & Cloud Infrastructure · Security & Hardening
Frontend
Backend
Database & Cloud
AI-Powered Workflow
Other
Don’t take my word for it.
“Saif did an incredible job developing our new website. He took our complex requirements and turned them into a seamless, high-performing platform. His technical expertise, attention to detail, and ability to troubleshoot challenges on the fly were impressive. I highly recommend Saif for any web development project.”
CEO & Founder @ZenithTech
“I had the pleasure of working with Saif on our website, tunisiacaccia.com, over the past months, and it’s been a great experience. He is incredibly responsive and has a real talent for understanding exactly what the client wants, which is the best part. He was extremely helpful throughout the process, and his expertise truly shows, the booking system works flawlessly, and the website functions smoothly. On top of that, he’s a fun and approachable person to work with, which makes the collaboration even more enjoyable. If you’re looking for someone who knows what they’re doing, is easy to work with, and delivers results, I highly recommend Saif.”
CEO @Tunisia Caccia Travel
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Average response time: under 4 hours