Saad

Full Stack AI Engineer

Rayon Studios • Temps plein

Dec 2025 - Present • 8 mos

● Design, develop, and maintain scalable full-stack applications using modern JavaScript technologies ● Build responsive, performant, and intuitive user interfaces using React, TypeScript, and related frontend tooling ● Develop secure, well-structured backend services using Node.js, Express, and PostgreSQL ● Design and implement OpenAPI 3.0–compliant APIs with strongly typed data contracts across the stack ● Collaborate closely with designers, product managers, and other engineers to deliver high-quality features ● Write clean, maintainable, and well-tested code following best practices and secure coding standards ● Optimize application performance, database queries, and overall system reliability ● Participate in code reviews to ensure code quality, consistency, and knowledge sharing ● Contribute to CI/CD pipelines and cloud deployments, primarily on Google Cloud Platform ● Troubleshoot, debug, and resolve issues across frontend and backend systems ● Stay up to date with emerging technologies and proactively suggest improvements to existing systems

Full Stack Software Engineer

Fiverr • Freelance

May 2023 - Present • 3 yrs 3 mos

● Delivered 70+ production-ready web and mobile applications for 30+ international clients across the Globe. ● Architected a multi-tenant, role-based SaaS platform with real-time WebSocket and live location tracking. ● Built three React Native apps (drivers, parents, staff) sharing a unified backend architecture. ● Implemented secure REST APIs with JWT auth, RBAC, caching, and rate limiting across client projects. ● Shipped an e-commerce platform with Stripe payments, checkout flow, and order management. ● Converted 20+ Figma designs into responsive, production React applications; earned Fiverr Level Two Seller status.