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$50 USD / hour
Flag of UKRAINE
kiev, ukraine
$50 USD / hour
It's currently 10:42 AM here
Joined November 30, 2019
3 Recommendations

Serhii B.

@balynskyiserhii

monthly-level-three.svg
5.0 (44 reviews)
6.2
6.2
$50 USD / hour
Flag of UKRAINE
kiev, ukraine
$50 USD / hour
98%
Jobs Completed
92%
On Budget
92%
On Time
17%
Repeat Hire Rate

Full Stack Web Developer & Blockchain Engineer

Professional full stack developer with 6+ years in software engineering. I have a degree in Computer Science and Mathematics, and a long history in software development. As a full stack developer, I have experience in a variety of areas such as websites, desktop apps, and hybrid mobile apps. Mainly focused on web development, but in recent years I have dived in the Blockchain field and worked on some projects of smart contracts and Dapps. I pride myself on being an extraordinarily fast developer while still maintaining high-quality standards and being easy to work with. Also as a fast learner, I'm open to picking up new technologies, programming languages, and frameworks. Enjoy teamwork and is good at collaborating with stakeholders and fellow software engineers. My service includes: -> Blockchain, Ethereum, Solana, Smart Contract, Solidity, ERC-20/721/1155 tokens, Defi/DEX/NFT projects, and more. -> JavaScript/TypeScript, Python, Rust, Go -> React.js, Vue.js, Laravel -> Django, Node.js -> AWS (Lambda | Amplify | Cognito | S3) & Docker, Firebase -> CI/CD: Travis CI, CircleCI, Azure, Jenkins, Github actions I stand with my clients through thick and thin and strive to build long-term relationships. Look forward to working with you and bringing it to life!
Freelancer Javascript Developers Ukraine

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Portfolio Items

HTML + CSS + Bootstrap + jQuery
Drewnogrod Kindergarten Equipment Website
HTML + CSS + Bootstrap + jQuery
Drewnogrod Kindergarten Equipment Website
HTML + CSS + Bootstrap + jQuery
Drewnogrod Kindergarten Equipment Website
HTML/CSS/Bootstrap/jQuery
Aktren Online Tutor Website
HTML/CSS/Bootstrap/jQuery
Aktren Online Tutor Website
HTML/CSS/Bootstrap/jQuery
Aktren Online Tutor Website
HTML + CSS + Bootstrap + jQuery
Kess Board Game Website
HTML + CSS + Bootstrap + jQuery
Kess Board Game Website
React + Bootsrap
Finsana Financial Website
React + Bootsrap
Finsana Financial Website
React + Bootsrap
Finsana Financial Website
Next.js + Bootstrap
RentBarker Real Estate Website
Next.js + Bootstrap
RentBarker Real Estate Website
Next.js + Bootstrap
RentBarker Real Estate Website
Vue.js + Laravel
Jewerly Website

Reviews

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Showing 1 - 5 out of 44 reviews
Filter reviews by: 5.0
$45.00 USD
Excellent freelancer.
JavaScript Website Design HTML5 Node.js
+1 more
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Flag of Sergio A. @sergioes
17 hours ago
5.0
$400.00 USD
Excellent work will use again and again
PHP JavaScript
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Flag of Jay K. @josssk
21 days ago
5.0
$300.00 USD
Great to work with Serhii recommend A+++
JavaScript NoSQL Couch & Mongo Node.js AngularJS React.js
User Avatar
Flag of Jose Wilber C. @alexshadav13
2 months ago
5.0
$300.00 USD
I highly recommend. Quick contact, full professionalism. I'm happy!
JavaScript React.js MongoDB React.js Framework
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Flag of Jose Wilber C. @alexshadav13
2 months ago
5.0
$450.00 USD
Serhii is a great developer to work with, good attention to detail
JavaScript Website Design HTML5 Node.js
+1 more
User Avatar
Flag of Alexander Thomas C. @alexcvitanovic
2 months ago

Experience

Senior Developer

Orion Dev Group
Apr 2018 - Jul 2020 (2 years, 3 months)
As a senior developer, I took part in several projects. Especially I developed many web sites using React/Node/MongoDB and mobile apps using Flutter/React Native/Ionic/Firebase. Meanwhile I have gained rich experience in web/app development.

Junior Developer

Orion Dev Group
Sep 2016 - Mar 2018 (1 year, 6 months)
As a junior developer, I learned lots of programming languages and coding habits for senior developer. Also I gained plenty of developing experience in this group.

Education

Bachelor of computer programming

Sevastopol State Technical University, Ukraine 2012 - 2016
(4 years)

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Top Skills

JavaScript 34 HTML5 21 HTML 20 Node.js 16 Python 14

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