Sergei S.
iOS developer
The last five years I spent working for Upwork itself as Sr. iOS Developer, developing its iOS app. I’ve been writing iOS applications for more than 10 years. I enjoy creating great software with user friendly UI. At every project I pay special attention on design, architecture, code support. I have professional knowledge of development in most of iOS Frameworks in all iOS layers. I’m responsible and focused on goals. Always trying to finish every project I work on. I graduated from Moscow State University of Economics Statistics and Informatics in 2009 as a mathematician and programmer. Several years I spent working in J2EE field, after that I started working as iOS developer. Several finished projects on the AppStore: Upwork, BoardMaps, Plain flashcards, Avtodor, QTickets. The first three are written in swift. I always try to find time to learn something new, I follow several projects on Github (my github profile - sidslog). Sometimes I participate in discussion on StackOverflow. I try to visit as many conference as I can or watch videos from this conference (WWDC is my favorite).
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $56k
$28k in the last 6 months
Across 33 contracts
Earnings, last 30 days
Skill rankings: Top 0.70% in Objective-C
Top 1% in 2 of 5 skills, ranked by MRR among everyone on Upwork with the skill.
- #5Unit Testing669 freelancers · 🇷🇸 #1Top 0.75%🇷🇸#1 of 11
- #9Objective-C1,282 freelancers · 🇷🇸 #1Top 0.70%🇷🇸#1 of 14
- #12iPad App Development446 freelancers · 🇷🇸 #1Top 3%🇷🇸#1 of 5
- #39Swift3,634 freelancers · 🇷🇸 #1Top 1%🇷🇸#1 of 18
- #70iOS Development6,533 freelancers · 🇷🇸 #1Top 1%🇷🇸#1 of 28