Zakaria Kasmi

Hello, I'm Zakaria Kasmi.
I'm a full-stack developer.

A full-stack web developer based in Morocco. I love building things and helping people.

My Background

A bit about my journey, experience, and what drives me as a developer.

I'm a full-stack developer with over 5 years of experience specializing in React.js, React Native, Next.js, and Nest.js. I build high-performance, scalable applications using TypeScript, JavaScript, Python, C/C++, Expo, Docker, and PostgreSQL.

My expertise lies in developing intuitive front-end experiences, optimizing back-end architectures, and integrating modern tools to create fast, reliable, and innovative solutions. I have a strong problem-solving mindset and a passion for crafting seamless user experiences while maintaining clean, maintainable code.

Whether it's developing mobile apps, web platforms, or backend services, I focus on delivering efficient, scalable, and user-centric applications. I'm currently available for full-time/part-time work and love collaborating on challenging projects.

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

Dec 2024 - Present

ZenithBlox

ZenithBlox is a comprehensive blockchain security and compliance platform that provides enterprise-grade solutions for DeFi protocols, smart contract auditing, and real-time threat detection across multiple blockchain networks.

ReactTypeScriptNode.jsBlockchain+4 more
Jan 2025 - Present

FrontierBlox Engine

FrontierBlox Engine is ZenithBlox's cutting-edge real-time blockchain security and compliance platform. It provides advanced monitoring, threat detection, and automated compliance reporting for blockchain networks and DeFi protocols.

ReactTypeScriptNode.jsBlockchain+3 more
Nov 2024 - Jan 2025

Sosympl

Sosympl is a Swiss company that offers business management solutions for small and medium-sized enterprises, helping them streamline operations and improve efficiency through powerful web applications.

AngularBootstrapNestJsREST APIs+3 more
Jun 2023 - Jul 2024

Animatrix AI

Animatrix AI is a US-based startup that provides cutting-edge AI solutions for designers, enabling them to generate high-quality images and videos with minimal effort using advanced machine learning models.

ReactNestJsPythonPostgreSQL+3 more

Technologies I work with

I've developed expertise in a variety of technologies and frameworks to build robust and scalable applications.

Node.js
React
JavaScript
TypeScript
Next.js
Express.js
MongoDB
PostgreSQL
Docker
React Native
Git
Python
Java
PHP

Where I've worked

My professional journey has equipped me with diverse skills and experiences in developing impactful solutions.

Apr 2025 - Present

Software Engineer

ZenithBlox

Working as a Software Engineer at ZenithBlox, a blockchain infrastructure company that bridges traditional finance with decentralized technology. Contributing to the development of solutions like BloxBlueprint (blockchain business process modeling), Universal Adapters (legacy system integration), and FrontierBlox Engine (real-time blockchain security and compliance).

2022 - Present

Freelance Developer

Fiverr

Providing professional freelance development services on Fiverr, specializing in AI web applications, mobile app development with React Native, and custom AI integrations. Delivered 7 professional gigs with a 4.7-star rating, including AI-powered applications like Leonardo AI clones, stable diffusion implementations, and full-stack solutions using React, Node.js, and modern AI technologies.

2022 - Present

Freelance Developer

Upwork

Senior Full Stack Developer on Upwork offering comprehensive development services at $20/hr. Specialized in React, Next.js, Node.js, TypeScript, AI integrations, and blockchain development. Successfully completed 3 jobs with predefined project catalog including responsive websites, ChatGPT integrations, AI music generation, and video AI applications. Expertise in MongoDB, PostgreSQL, API integrations, and mobile development with React Native.

Nov 2024 - Jan 2025

Full-Stack Developer

SleekSyntax Agency

Developed and maintained scalable web applications using Angular and NestJS. Implemented authentication and authorization mechanisms to enhance application security. Collaborated in an Agile Scrum environment, participating in daily stand-ups, sprint planning, and code reviews.

Jun 2023 - Jul 2024

Full-Stack Developer

Animatrix Inc

Led full-stack development using React.js and NestJS to build an AI-powered web application. Designed and optimized API architecture while implementing authentication and data encryption for security. Integrated AWS S3 for secure storage and managed access control using IAM policies.

Get In Touch

I am currently available for full-time / part-time work. If you have a project that you want to get started, think you need my help with something or just fancy saying hey, then get in touch.

Let's talk about your project

I'm always interested in new opportunities and challenging projects. Whether you're a startup looking to build your first product or an established company wanting to improve your digital presence, I'd love to hear from you.