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Sergei Z.
Expert-Vetted

Sergei Z.

Lead Browser Extension Developer

I have been developing browser extensions since 2015. I have over 9000 hours on Upwork mostly working with Chrome extensions. Sometimes I also develop a web app (nowadays I prefer Vue) accompanying the extension. I know what to expect from the Chrome Web Store and other browser stores: their best practices and guidelines, how to publish an extension, and what an extension can be banned for. I try to stick to one employer as long as possible. But despite that, over the years I've been fortunate to work in companies of various sizes, on small and large projects, and by now I believe I know some common pitfalls in the architecture of browser extensions and, more importantly, in the management of the teams developing them.

🇹🇭Bang Lamung, Thailand$87/hr100% JSS4.10 (4)Since Mar 2016

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#6,298 / 412k
🇹🇭Country#36 / 1,118
Revenue, last 30 days
$0
Total earnings
$334k

Billed in all: $344k

World#6,298 / 412k
🇹🇭Country#36 / 1,118
Per project
$37k
Projects, last 6 months
0
World#209,857 / 412k
🇹🇭Country#573 / 1,118
Projects in all
9

Across 11 contracts

45% fixed55% hourly
World#212,272 / 412k
🇹🇭Country#583 / 1,118

Earnings, last 30 days

$344kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$335k$340k$345k$350kOct 9Oct 24Nov 8

Skills