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Serhii S.

Serhii S.

Mobile apps development / Backend development / Web development

✅ Mobile apps development ✅ Backend development ✅ Web development 👋 Hello! I’m software engineer focused on mobile applications development. I have around 11 years of total experience in this area. Nowadays I work with modern cross-platform development frameworks like ReactNative and Flutter, but also have experience in native iOS development. My skills are not limited to mobile development only. I also can work on backend component or websites based on Node.js platform. I'm very serious about code quality to provide only flexible and reliable solutions for my clients. ⚙️ I always try to be committed and reliable partner for you at every stage of your project - from initial discussions to launch and beyond. I will prioritise your requirements and give my advice, if necessary. To achieve the best outcomes I’ll keep you informed on all stages of development. 🟡🔵 You may be worried, that war in my country has negative effect on my work performance. But I assure you that I have all means to be autonomous and protect projects of my clients. Despite the war I always do the work reliably and in time. Starting contract with me you can help Ukraine in its fight for freedom. ✅ General skills ▷ TypeScript ▷ JavaScript ▷ Node.js ▷ Dart ▷ Swift ▷ Objective-C ▷ Java ▷ Git ▷ SVN ✅ Mobile (iOS/Android) development ▷ ReactNative ▷ Flutter ▷ User authentication ▷ Geolocation ▷ PUSH-notifications ▷ In-App Purchases ▷ Photo and video capture ▷ 2D drawing ✅ Backend development ▷ Parse sever ▷ Koa framework ▷ REST API ▷ MongoDB ▷ mongoose ▷ Firebase ✅ Web development ▷ React ▷ Next.js ▷ Bootstrap ▷ HTML ▷ CSS 🔝 Here are some feedbacks from my clients (you can check those in my Upwork profile): “Best iOS developer I've ever worked with, great communication skills and adherence to deadlines. Will definitely work with him again!” “Serhiy is an excellent software developer. It was a pleasure working with him. He is reliable, hardworking, and intelligent. I look forward to working with him in the future.” “Incredible work done and goes far above and beyond the task and adds a lot of real value to the project”

🇺🇦Kremenchuk, Ukraine$40/hr100% JSS5.00 (13)Since May 2010

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#22,341 / 412k
🇺🇦Country#1,675 / 14.3k
Revenue, last 30 days
$0
Total earnings
$156k

Billed in all: $158k

World#22,341 / 412k
🇺🇦Country#1,675 / 14.3k
Per project
$8.2k
Projects, last 6 months
0
World#209,850 / 412k
🇺🇦Country#7,324 / 14.3k
Projects in all
19

Across 20 contracts

20% fixed80% hourly
World#138,388 / 412k
🇺🇦Country#5,834 / 14.3k

Earnings, last 30 days

$158kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$154k$156k$158k$160kOct 8Oct 23Nov 7

Skills