Samx

Hey, I'm SAMI

Passionate about Cybersecurity & software,

I build secure, scalable,

and user-focused software using

Next.js

Who I am

About Me

Sami Sellal
B.Sc Software EngineeringUSTHB
M.Sc CybersecurityUSTHB — In progress
Based in AlgiersAlgeria
Open to workRemote & On-site

Sellal Sami Yasser

Full-Stack Developer · Security Enthusiast

I hold a Bachelor's in Software Engineering from USTHB and I'm currently pursuing a Master's in Cybersecurity, deepening my expertise in information security, network security, and secure system design.

I build full-stack web apps with Next.js, Express.js, Spring Boot, PostgreSQL, and MongoDB, and cross-platform mobile apps with React Native — always with security in mind from the ground up.

Strong foundation in software architecture, database design, and networking. Passionate about application security, system hardening, and building reliable, user-focused solutions.

Always eager to learn and grow at the intersection of software development and cybersecurity — whether that's a scalable backend, a polished UI, or a hardened infrastructure.

What I've built

Selected Work

What I know

Skills & Technologies

⬡Frontend
React.jsNext.jsTailwind CSSShadcn/uiAceternity UIDjango templatesAny UI library
⬡Backend
Node.jsExpress.jsDjango RESTSpring BootPHPAuth & SecurityClean Design
⬡Database
PostgreSQLMongoDBMongooseRedis
⬡Mobile
React NativeExpoCross-platform
⬡Architecture
Clean ArchitectureSystem DesignConceptionMicro-services
⬡DevOps & Tools
DockerDocker ComposeGitHub CI/CDNginxReverse ProxyLoad BalancingMonitoring
⬡Security
OWASPApp Security AuditingPen TestingSecure Design

What I offer

What I Can Do

01
Full‑Stack Web Development
End-to-end web apps from pixel-perfect frontends to solid backends — React, Next.js, Django, Spring Boot, and more. Built to ship, designed to last.
02
API & Backend Engineering
RESTful and secure APIs with Node.js, Express, Django REST, and Spring Boot. Authentication, business logic, database design — all done right.
03
Mobile Development
Cross-platform mobile apps using React Native with Expo. One codebase, seamless experience across iOS and Android.
04
System Architecture & Design
Clean architecture, micro-services, system conception and modeling. I make sure your codebase stays maintainable as it grows.
05
DevOps & Infrastructure
Docker, CI/CD pipelines, Nginx reverse proxy, load balancing, and monitoring. I'll help you deploy fast and reliably.
06
Security & Hardening
Secure-by-design development using OWASP best practices. I audit, analyze, and harden applications so you can ship with confidence.

Always learning

Certifications & Credentials

React.js Workshop — Speaker & Instructor
Tatweer Hackathon — Organizer & Project Manager

IT Department, English Speakers Club

React.js Workshop — Speaker & Instructor

2024

Certificate of appreciation for leading a React.js workshop — guiding participants through the fundamentals of React, from building dynamic UIs to mastering state management, component architecture, Hooks, and React Router DOM. 

Academic journey

Education Timeline

Juin 2022

Baccalauréat Scientifique

Lycée Abdelhafid Boussouf

Algiers, Algeria

Scientific baccalaureate diploma — the foundation that sparked my passion for technology and problem solving.

Juin 2025

Licence en Ingénierie des Systèmes d'Information et des Logiciels (ISIL) — Bac +3

Université des Sciences et de la Technologie Houari Boumediene (USTHB)

Algiers, Algeria

Three-year software engineering degree covering system design, databases, algorithms, full-stack development, and software architecture.

En coursIn Progress

Master 1 en Sécurité des Systèmes d'Information (SSI)

Université des Sciences et de la Technologie Houari Boumediene (USTHB)

Algiers, Algeria

Specializing in information security, network security, secure system design, and risk management — building on my engineering background to ship software that is secure from the ground up.

Let's talk

Contact Me

Have a project in mind?

I'm open to freelance work, full-time positions, and interesting collaborations. Whether it's a web app, mobile project, or a security audit — feel free to reach out and let's build something great together.

Email

yassersellal14@gmail.com

LinkedIn

linkedin.com/in/sami-sellal

GitHub

github.com/SamiSelx

Available for new opportunities