Skip to content
BackNov 8
Sergei S.
Upwork badge

Sergei S.

Expert Android Developer (Kotlin)

A dedicated Software Developer with over twenty years of experience professionally deploying full-cycle solutions. My latest experience is developing complex, market-oriented Android applications, converting Swift code to Kotlin, and troubleshooting bugs in Android applications. With expertise in Android engineering, I will resolve your app development needs while achieving the results expected from a senior professional. I am reliable in working with minimal supervision and always conduct thorough research before reaching out with questions.

🇺🇸Sarasota, United States$25/hr100% JSS5.00 (8)Since Apr 2020

Earnings and projects

MRR
$172

Last 6 months ÷ 6

World#118,685 / 412k
🇺🇸Country#16,427 / 62.1k
Revenue, last 30 days
$0

Last 6 months: $1k

Total earnings
$21k

Billed in all: $22k

World#135,653 / 412k
🇺🇸Country#22,614 / 62.1k
Per project
$852

$343 in the last 6 months

World#136,413 / 412k
🇺🇸Country#23,210 / 62.1k
Projects, last 6 months
3
67% fixed33% hourly
World#66,482 / 412k
🇺🇸Country#8,998 / 62.1k
Projects in all
25
76% fixed24% hourly
World#113,044 / 412k
🇺🇸Country#16,598 / 62.1k

Earnings, last 30 days

$21.7kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$21,250$21,500$21,750$22,000Oct 9Oct 24Nov 8

Skill rankings: #1 in 1 skill of 15

Rarest: top 12% in Realm Database, of 120. Ranked by MRR among everyone on Upwork with the skill.

  1. 1Servoy1 freelancers · 🇺🇸 #1Top 100%
  2. 3Tcl/Tk16 freelancers · 🇺🇸 #2Top 19%
  3. #14Realm Database120 freelancers · 🇺🇸 #2Top 12%
  4. #70Transact-SQL326 freelancers · 🇺🇸 #19Top 21%
  5. #72Electron358 freelancers · 🇺🇸 #6Top 20%
  6. #100Bluetooth244 freelancers · 🇺🇸 #17Top 41%
  7. #151Android Studio805 freelancers · 🇺🇸 #5Top 19%
  8. #390UI Animation1,090 freelancers · 🇺🇸 #35Top 36%