Zarttash Z.
Fractional CTO & Product Engineer | MVPs, Mobile, AI & IoT
Hands-on fractional CTO for founders going from 0 to 1. I scope the MVP, decide what ships now and what waits, then build it myself: mobile, web, AI, and apps that talk to hardware. 10 years, 100+ apps shipped. I built the code generation engine inside Locofy.ai, the Figma design-to-code plugin, and authored @locofy/cli, used by thousands of developers including engineering teams at Amazon, Toyota and Al Jazeera. Alongside that, I have spent a decade taking products from a founder's idea to the App Store, Google Play and production servers, then staying on to scale them. Most MVPs fail on scope, not code. I start with a discovery call and a written scope with hours per module, so you know exactly what ships in version one and what waits. Then I build in milestones, with a working build you can test every time. Store submission, monitoring and the first real-user fixes are part of the job. You own the code, the accounts and the infrastructure from day one. I also take over apps someone else started and make them production-ready: code audits, performance, security and scaling. ◆ Proof • LocumForce: healthcare marketplace, Stripe Connect • DineHome: food delivery apps, startup cut 78% • Akto Space: IoT wellness rooms, firmware to AWS • The Bravo Life: my team's app, 10,000 paying users • Locofy: Figma design-to-code engine, React Native ◆ What I build • Mobile apps: React Native, Expo, iOS, Android • Web and SaaS: Next.js, React, Node.js, Python • Data and payments: PostgreSQL, Supabase, Stripe • AI features: agents, OpenAI, LLMs, Whisper, voice • Hardware: IoT, BLE, firmware, kiosk, POS printers • Infrastructure: AWS, Docker, CI/CD, OTA updates Also experienced with TypeScript, FastAPI, Laravel, Angular, MongoDB, Firebase, Redis, GCP, LangChain, Twilio, WebRTC, Socket io, background GPS, custom native modules, ESC/POS thermal printing, Nets and Vipps payments, and multi-brand white-label app builds. If you have an idea, a prototype, or an app someone else started, send me what you have. I will tell you what to build first, what can wait, and what it will really take.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $9.7k
Billed in all: $57,973$58k
$2.4k in the last 6 months
Across 5 contracts
Across 40 contracts
Earnings, last 30 days
Skill rankings: Top 9% in Product Management
Ranked by MRR among everyone on Upwork with the skill.
- #28Code Review218 freelancers · 🇵🇰 #4Top 13%🇵🇰#4 of 30
- #45Bluetooth LE293 freelancers · 🇵🇰 #8Top 15%🇵🇰#8 of 42
- #86Minimum Viable Product546 freelancers · 🇵🇰 #26Top 16%🇵🇰#26 of 161
- #87Internet of Things718 freelancers · 🇵🇰 #14Top 12%🇵🇰#14 of 131
- #147Software Architecture964 freelancers · 🇵🇰 #21Top 15%🇵🇰#21 of 146
- #246Product Management2,632 freelancers · 🇵🇰 #15Top 9%🇵🇰#15 of 279
- #440Stripe3,151 freelancers · 🇵🇰 #107Top 14%🇵🇰#107 of 829
- #638Supabase4,116 freelancers · 🇵🇰 #178Top 16%🇵🇰#178 of 1,141