Sergey R.
Technically challenging systems development.
Why should you hire me instead of cheaper alternatives? Because you get what you pay for. Who am I? I am a software developer, team lead, and project manager with over 25 years in the industry. My strong sides are: problem-solving, optimization, reverse-engineering skills, focus on client needs, attention to quality and economics of the decisions, deep understanding of computer systems and software architecture. I worked on various projects for different industries like marine transportation, web application for computer-aided learning, mobile applications; security: iClass, RFID, reverse-engineering.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $58k
Billed in all: $739,480$739k
$19k in the last 6 months
Across 41 contracts
Earnings, last 30 days
Skill rankings: Top 0.39% in AngularJS
Top 1% in 6 of 10 skills, ranked by MRR among everyone on Upwork with the skill.
- Bitcoin267 freelancers · 🇺🇦 #1Top 0.75%🇺🇦#1 of 8
- #4Database Programming363 freelancers · 🇺🇦 #1Top 1%🇺🇦#1 of 16
- #12AngularJS3,100 freelancers · 🇺🇦 #2Top 0.39%🇺🇦#2 of 170
- #13Performance Optimization1,100 freelancers · 🇺🇦 #4Top 1%🇺🇦#4 of 103
- #19Scrum1,840 freelancers · 🇺🇦 #1Top 1%🇺🇦#1 of 116
- #33Software Architecture & Design1,465 freelancers · 🇺🇦 #6Top 2%🇺🇦#6 of 131
- #81Project Management18,568 freelancers · 🇺🇦 #4Top 0.44%🇺🇦#4 of 285
- #119PHP24,835 freelancers · 🇺🇦 #18Top 0.48%🇺🇦#18 of 1,645