Ziad D.
Senior R&D Engineer
I’m a Software Engineer with 5+ years of experience building scalable, production-ready web systems — from backend architecture and APIs to high-quality frontend applications. I’ve worked professionally on real-world products outside Upwork, contributing to long-term systems where reliability, performance, and maintainability matter. My experience includes designing backend services, implementing secure authentication flows, building microservice-based systems, and integrating third-party platforms — all while keeping the codebase clean and easy to evolve. My focus is not only delivering features, but delivering well-designed systems: structured, scalable, and built using best practices. I’m comfortable taking ownership of a project, understanding requirements deeply, and translating them into stable solutions that can grow with the business. Core skills: System Design, Node.js, Go, TypeScript, React, Next.js, PostgreSQL, MongoDB, Redis, Docker, Microservices, REST APIs, Security. If you’re looking for a reliable engineer who can build and improve real production systems, I’d be happy to work with you.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $5.8k
Billed in all: $36,808$37k
$1.9k in the last 6 months
Across 47 contracts
Earnings, last 30 days
Skill rankings: Top 8% in Reactive Programming
Ranked by MRR among everyone on Upwork with the skill.
- #8Reactive Programming95 freelancers · 🇪🇬 #1Top 8%🇪🇬#1 of 1
- #12Sequelize132 freelancers · 🇪🇬 #1Top 9%🇪🇬#1 of 5
- #203Software Architecture964 freelancers · 🇪🇬 #6Top 21%🇪🇬#6 of 25
- #373MERN Stack3,086 freelancers · 🇪🇬 #5Top 12%🇪🇬#5 of 27
- #790ChatGPT5,588 freelancers · 🇪🇬 #5Top 14%🇪🇬#5 of 49
- #1,236MongoDB10,865 freelancers · 🇪🇬 #24Top 11%🇪🇬#24 of 228
- #2,074PostgreSQL12,850 freelancers · 🇪🇬 #35Top 16%🇪🇬#35 of 262
- #2,415Next.js15,954 freelancers · 🇪🇬 #35Top 15%🇪🇬#35 of 302