About me

My name is Firas Melliti and I am a Senior Software Engineer with expertise in building scalable SaaS platforms and enterprise applications. I specialize in Full-Stack Development using React, Node.js, TypeScript, and cloud technologies. I have led engineering teams to deliver multi-tenant microservice ecosystems that have secured millions in funding.

With experience across diverse industries including healthcare, marketing automation, and e-learning, I bring a proven track record of building platforms that handle millions of users and high-scale operations. I am also a TOP RATED PLUS freelancer on Upwork (TOP 3%) and passionate about teaching and mentoring.

C o n t a c t m e R e s u m e

Portfolio

A selection of enterprise-scale platforms and applications I've engineered, serving millions of users across different industries.

  • All Categories
  • SaaS Platforms
  • Enterprise
  • E-Learning
Affiliaide Platform

Affiliaide

Multi-tenant SaaS Ecosystem
Single Sign-On for Aide Products

SSO System for Aide Products

Single Sign-On Integration
Sales Aide Canvassing Project

Sales Aide Canvassing

Canvassing Management System
E-Learning Platform

E-Learning Platform

Educational Technology

Job Experience

Senior Software Engineer

Black Label Solutions, Remote

Led engineering for multiple SaaS platforms securing millions in funding. Built multi-tenant microservice ecosystem using NestJS, React, Prisma, Docker, GCP.

Software Engineer

Leadshook, Remote

Redeveloped LeadsHook's core platform (v3) handling up to 200,000 daily leads. Modernized frontend from AngularJS to Angular, improved backend with NestJS, MySQL, Docker.

Software Engineer

Gyoom, Remote

Designed and developed microservice platform with 2,000,000+ active users. Built scalable backend handling 250+ requests per second using React, Express, TypeScript, MongoDB.

Software Engineer

Tutosh, Tunisia

Developed robust e-learning platform with seven microservices. Implemented using TypeScript, PostgreSQL, NestJS, GraphQL, and Angular.

Skills

Technologies and expertise I've mastered throughout my career building enterprise-scale applications.

Full-Stack Development

React, Node.js, TypeScript, Express, NestJS, GraphQL, Redux, NextJS - building scalable web applications.

Cloud & DevOps

AWS, Docker, Kubernetes, CI/CD, Serverless Architecture - deploying and scaling applications in the cloud.

Database & Backend

MySQL, PostgreSQL, MongoDB, NoSQL, Microservices, REST APIs - handling millions of users at scale.

Testing & Security

Jest, TDD, OAuth, Web App Security, Penetration Testing - ensuring robust and secure applications.

Contact Me