Lei Z.
Mobile, Web & Micro Service
A passionate software architect, team leader, and software developer based on a solid software engineering background with 19 years of computing industry experience. Result-oriented and having: 1. Hands-on experience in distributed system/application architecture design 2. Execution of high-performance application development in n-tier architecture 3. On time delivery of enterprise solutions for various business domains in automobile manufacturing, enterprise remote support technologies, and enterprise e-commerce 4. Proficient skills in Java, ASP.NET, HTML5, OPC UA, XML, My SQL, Oracle PL/SQL and SQL Server 5. Successive application cutovers and deployment experience in very demanding real-time environments 6. Excellent English verbal and written communication skills 7. Rich onsite working experience in the United States
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $62k
Billed in all: $813,423$813k
Across 6 contracts
Earnings, last 30 days
Skill rankings: Top 0.45% in Web Application
Top 1% in 10 of 10 skills, ranked by MRR among everyone on Upwork with the skill.
- #12Spring Boot2,150 freelancers · 🇨🇳 #1Top 0.56%🇨🇳#1 of 31
- #15Golang2,195 freelancers · 🇨🇳 #2Top 0.68%🇨🇳#2 of 37
- #17Microservice2,217 freelancers · 🇨🇳 #1Top 0.77%🇨🇳#1 of 4
- #38Java8,313 freelancers · 🇨🇳 #1Top 0.46%🇨🇳#1 of 80
- #42Web Application9,341 freelancers · 🇨🇳 #1Top 0.45%🇨🇳#1 of 32
- #42Flutter7,550 freelancers · 🇨🇳 #1Top 0.56%🇨🇳#1 of 17
- #48Docker8,761 freelancers · 🇨🇳 #2Top 0.55%🇨🇳#2 of 39
- #76React Native10,486 freelancers · 🇨🇳 #1Top 0.72%🇨🇳#1 of 29