Simon D.
Senior Full-Stack Developer | Next.js, SaaS & AI Automation
I build web apps, SaaS products and AI automations that actually ship - and I take over projects other developers left half-finished. Senior full-stack developer from Austria (alloq.digital), working with founders and businesses across Europe. Recent work: • A voice-AI phone app for kids - real-time conversations with an AI character, built from prototype to App Store release • An all-in-one SaaS for Swiss trade businesses: offers, Swiss QR invoicing, banking and an offline-first mobile app for field workers • A fully automated video pipeline (n8n + AWS Lambda) that rendered thousands of personalized videos at ~$0.05 each - zero manual steps between customer order and finished video • Hotel websites and direct-booking systems with Vioma, Seekda and IBE integrations What I build: • React / Next.js / TypeScript web applications - fast, SEO-optimized, built to scale • SaaS MVPs with clean architecture you won't need to rewrite in 6 months • Mobile apps with React Native and Expo • AI automation workflows (n8n, LLM APIs) that eliminate repetitive processes • Rescue projects: stalled builds, broken code, missed deadlines — I step in and ship How I work: • Proactive updates in your timezone - you'll never have to chase me • Scope changes get discussed before they cost money, not invoiced as surprises • Tech chosen for your goals, not my resume: Next.js, Node, Supabase, Stripe, AWS If your project is stuck - or you want it built right the first time - send me your scope and timeline, and I'll tell you honestly what it takes.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $1.2k
Billed in all: $6,724$6.7k
$1.2k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 18% in FFmpeg
Ranked by MRR among everyone on Upwork with the skill.
- #7EDIFACT24 freelancers · 🇦🇹 #1Top 29%🇦🇹#1 of 1
- #38FFmpeg217 freelancers · 🇦🇹 #1Top 18%🇦🇹#1 of 1
- #597AWS Lambda2,947 freelancers · 🇦🇹 #1Top 20%🇦🇹#1 of 1
- #770MERN Stack3,086 freelancers · 🇦🇹 #1Top 25%🇦🇹#1 of 1
- #1,710Supabase4,116 freelancers · 🇦🇹 #1Top 42%🇦🇹#1 of 4
- #2,057SaaS Development5,201 freelancers · 🇦🇹 #2Top 40%🇦🇹#2 of 3
- #2,061Docker8,761 freelancers · 🇦🇹 #5Top 24%🇦🇹#5 of 15
- #2,259SaaS6,440 freelancers · 🇦🇹 #1Top 35%🇦🇹#1 of 6