Kevin B.
Full-Stack Engineer- AI Products - Fintech & Blockchain Infrastructure
I build production-grade software at the intersection of AI, fintech, and blockchain. My work spans the full stack — from backend architecture and API design to polished React frontends — with a focus on systems that handle real money, real data, and real users. Past and current work includes an AI-powered personal health platform with food analysis and a token reward economy; and a custodial crypto trading platform integrating Cobo WaaS 2.0 for a funded fintech startup. What I deliver for clients: AI-integrated applications — Gemini, OpenAI, and Claude APIs wired into production products Crypto exchange infrastructure — Trading platform with rest API & websocket order execution, Cobo WaaS 2.0 MPC custody, KYC integration, VARA licensing support Algorithmic trading systems — MQL4/MQL5 EAs, Python ML pipelines, live deployment on IC Markets and similar brokers Full-stack web and desktop applications — React/Vite frontends, Node.js/Express backends, Supabase (PostgreSQL), deployed on Vercel, Railway, and AWS Smart contracts and dApps — Solidity, Rust, Web3.js, ethers.js across EVM chains and Solana I work independently, communicate clearly, and ship. 100% Job Success · Top Rated Plus. Stack: TypeScript · Node.js · React · Python · MQL5 · Solidity · Supabase · AWS · Cobo & Fireblocks WaaS · Vite · Vercel · Railway
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $3.4k
Billed in all: $97,165$97k
$1.1k in the last 6 months
Across 151 contracts
Earnings, last 30 days
Skill rankings: Top 9% in Bitcoin
Ranked by MRR among everyone on Upwork with the skill.
- #23Bitcoin267 freelancers · 🇯🇵 #1Top 9%🇯🇵#1 of 2
- #28MQL 4241 freelancers · 🇯🇵 #1Top 12%🇯🇵#1 of 1
- #35MQL 5240 freelancers · 🇯🇵 #1Top 15%🇯🇵#1 of 1
- #51Financial Trading259 freelancers · 🇯🇵 #1Top 20%🇯🇵#1 of 2
- #91Trading Automation467 freelancers · 🇯🇵 #2Top 19%🇯🇵#2 of 2
- #102Websockets613 freelancers · 🇯🇵 #1Top 17%🇯🇵#1 of 3
- #124Bot Development927 freelancers · 🇯🇵 #2Top 13%🇯🇵#2 of 4
- #192Blockchain1,753 freelancers · 🇯🇵 #4Top 11%🇯🇵#4 of 7