Zlatko D.
Senior Full-Stack Engineer | Next.js, TypeScript & Node.js Specialist
Building high-performance, scalable web applications, dashboards, and enterprise platforms that are pixel-perfect and optimized for speed. I specialize in modern JavaScript/TypeScript architectures and robust backend integrations. Core Technical Expertise: Frontend: Next.js (App Router), React.js, Tailwind CSS, TypeScript, Redux Backend & Database: Node.js, Express, Supabase (Auth, RLS, Edge Functions), PostgreSQL, FastAPI E-Commerce & Specialized Systems: Headless WordPress (ACF Pro), WooCommerce custom integrations, Stripe API AI & LLM Integrations: Anthropic Claude API, Google Gemini API, OpenAI integrations, automated parsing & agent workflows Whether you need to scale an existing product from scratch or engineer a complex dashboard, I deliver clean, production-ready code with guaranteed speed and reliability. Let's build something exceptional.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $23k
Billed in all: $458,165$458k
$7.7k in the last 6 months
Across 900 contracts
Earnings, last 30 days
Skill rankings: Top 2% in WordPress
Ranked by MRR among everyone on Upwork with the skill.
- #117ExpressJS5,651 freelancers · 🇲🇰 #2Top 2%🇲🇰#2 of 18
- #214FastAPI4,337 freelancers · 🇲🇰 #1Top 5%🇲🇰#1 of 9
- #375Machine Learning8,972 freelancers · 🇲🇰 #2Top 4%🇲🇰#2 of 18
- #412React Native10,486 freelancers · 🇲🇰 #1Top 4%🇲🇰#1 of 20
- #646PHP24,835 freelancers · 🇲🇰 #2Top 3%🇲🇰#2 of 86
- #648AI Agent Development11,048 freelancers · 🇲🇰 #1Top 6%🇲🇰#1 of 18
- #651Next.js15,954 freelancers · 🇲🇰 #3Top 4%🇲🇰#3 of 45
- #724TypeScript15,967 freelancers · 🇲🇰 #4Top 5%🇲🇰#4 of 61