Sergey Middle PHP/Blockchain Developer | Programming:

Sergey K.

Last update: 04 Jun 2019

MIDDLE

PHP/Blockchain Developer

Hi, there, my name is Serhii and I'm from Ukraine, Kiev.

I'm able to build an entire system from a scratch, both back-end and front-end, starting from a project specification in schemas and design finishing ready server application with all necessary maintenance and further upgrades.

I provide scalable and reliable code using top-notch web technologies: PHP7, MySQL, JS, CSS, HTML, Bootstrap and jQuery. I provide organized and well-documented sources with quality and performance control. Able to do fine database optimization using indexes and full-text search (MySQL/Postgresql) to scan any documents in a second.

I have different online API experience - payments, cryptocurrency and many other API's.

Also I have proven experience working with blockchain smart contracts based on Solidity.

All rates are indicative, annual rate includes 20% discount

20% discount on yearly basis

GMT West Europe

Kyiv/Ukraine

Works

‹ › ×

TECH STACK

Back End DLT

Programming Languages:

JavaScript PHP Ethereum

RDBMS:

MySQL PostgreSQL

Operating Systems:

Linux Windows Mac OSX Administration

Development Tools:

Composer

Other skills:

Solidity Blockchain

Libraries/Frameworks/Tools:

Laravel Framework Yii2 PHP Framework Web3.js

EXPERIENCE

Industry Experience

Blockchain & Cryptocurrency

Product Experience

Cryptocurrency Website, Smart contract

PORTFOLIO HIGHLIGHTS

Jan `18 – Present

1 year

CRYPTO INVESTMENT PLATFORM

Backend Developer

Salix

Salix is the modern web application for people eager to invest and make a profit from cryptocurrency including Bitcoin and Etherium. It allows you not only to put your funds on a platform but to see how its profitability and then make payouts if necessary as well. Salix Application includes: - secure account protection - referral system - crypto portfolios management - activity, volume and performance reporting and charts visualizations - crypto payment system and withdrawal

Technologies Stack:

API MySQL PHP Laravel Framework

Industry:

Blockchain & Cryptocurrency

Product:

Cryptocurrency Website

Works:

Jan `18 – Feb `18

1 month

SMART CONTRACT & WEB3 DEMO

Blockchain Developer

As most of all our Ethereum projects are under NDA we decided to create own springs smart contract and deployed it to Rinkeby network. So you may check functionality we can implement based on web3 and Ethereum smart contracts. You can play around with our smart contract, buy tokens with ether and invest in fields in Rinkeby network. Please use Metamask Chrome Extension or mist browser to interact with Web3

Technologies Stack:

Node.js Ethereum Solidity Blockchain Web3.js

Industry:

Blockchain & Cryptocurrency

Product:

Smart contract

Works:

Web & mobile development agency #265

10-50

Kyiv/Ukraine

GMT

Core Expertise

Amazon API AngularJS API AWS JavaScript Node.js PHP React.js React Native Yii Laravel Framework REST API Vue.js Smart Contracts Blockchain

Industries

Business & Productivity, Information services & Technologies, Advertising & Marketing, Social Media & Communication

We are a team of highly experienced professionals who are successfully delivering various web and mobile projects to clients all over the world. Our team is helping companies to empower business and improve KPIs to make business more profitable and successful. We also perform business analysis and consulting to find the best software solution that fits our clients’ needs.

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