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  1. Freelancers

Serhii K.

Offer Serhii work on your next project.

Ukraine Zaporizhzhia, Ukraine
6 months 21 days back
Very busy very busy
2 Safes completed
9 years back
6 clients
age 49 years
on the service 16 years
  • sylius
Freelancer Serhii K. — Ukraine, Zaporizhzhia. Core skill — Web Programming, C#

Rating

Successful projects
No data
Average rating
No data
Rating
482
Web Programming
990 place out of 6421
C#
81 place out of 1197

CV

I have been working in the IT field since the 1990s and I have a profile higher education.


I have experience in working with different databases (Oracle, MySQL, Postgresql, SQLite, Interbase, MongoDb), CMS and Frameworks (Symfony, Laravel, Yii,  Joomla, Opencart).


For the last 10 years, I have been a backend web developer and specializing in Symfony and Laravel. From time to time, I join the front development: Reactjs (Nextjs), Vuejs (NUXT) and a little Angular. I can create projects from scratch or change existing ones.


I know how to create your own RESTful or GraphQL API and how to use the existing one.


I have experience in working with AWS: S3, Cloudfront, RDS, Lambda, SNS, SQS, Cognito e.t.c.


I start working on the project only when I am sure that I can complete it.

Skills and abilities

Programming

Services

Portfolio


  • 11 USD

    WordPress PageSpeed Optimization

    Web Programming
    WordPress PageSpeed Optimization — example of freelancer's portfolio work in category Web Programming
    Optimize your website on WordPress.

  • The UpClub

    Payment Systems Integration
    The UpClub — example of freelancer's portfolio work in category Payment Systems Integration
    Develop your own simplified script on PHP to integrate the Platon.UA payment system into a WordPress resource.

  • The Internet Shop of Shoes "ModnoVse"

    Search Engine Optimization (SEO)
    The Internet Shop of Shoes
    Google Analytics on Electronic Commerce.

  • by IVOLONTER

    PHP
    by IVOLONTER — example of freelancer's portfolio work in category PHP
    Full programming of the website IVolonter.com.ua:
    - Forms of login, registration, sending requests, etc.
    Personal cabinets of 3 different types of users and administrator cabins
    Download data in Excel
    … and the other

    I used CodeIgniter 3.0.1.

  • The BestWebCloudHosting

    Web Programming
    The BestWebCloudHosting — example of freelancer's portfolio work in category Web Programming
    The site is a platform for choosing a hosting service provider. It contains a base of existing on the market proposed with the possibility of their comparison and the choice of an optimal hosting plan.
    It is performed on the Symfony 2.0. As a database, MongoDB is used. Access to the base is made through RESTful Web Serviceb performed using node.js.

  • Development of websites in the team "Horoshka"

    Web Programming
    Participated actively in the development of websites:
    www.funktionevents.co.uk, www.serlimited.com, www.totallywicked-wholesale.com, www.totallywicked-wholesale.co.uk, www.magpiewholesale.com, www.seecv.com, www.twistfix.ie, dbifurnituresolutions.co.uk, www.thepetwarehouse.co.uk, tenura.us, www.designersofas4u.co.uk.

  • Calendar of May

    Web Programming
    Calculation of the May calendar.

    completed by:
    1 . Library for the calculation of three May calendars: Tsolkin, Haab, Long Account.
    … The 2nd Information for external pages.
    3 . Googles for Google.
    and 4. Macro for OpenOffice.
    and 5. Plugin for CMS TikiWiki.

    You can find everything on the site http://yamaya.ru/maya1320/ and use it completely free.

    It is used by PHP, AJAX, JavaScript, MySQL.

  • Graber of the Rambler Horoscope

    Web Programming
    Graber of the Rambler Horoscope — example of freelancer's portfolio work in category Web Programming
    A simple form of registration of a new user. Date of birth is an obligatory parameter. This is the sign of the zodiac of man. When entering the system, we run to http://horoscopes.rambler.ru/ , we "rap" (from the word grabber) the horoscope of this sign on the current day and we show it to the user.

    Languages and technologies: MySQL, PHP, JQuery, cURL, RegExp.

  • Programming and analytical complex “STRB”

    The programming and analytical complex “STRB” consists of two parts. The first part is a program for the preparation of the output data on a personal computer (PC), their processing and download in the results files for the following download in a carrier personal computer (PC). The second part, implemented on the CPC under the management of the Palm OS, allows to read from the screen of the CPC introduced data, process them according to the algorithm and form the resolved mass. This structure of the complex allows to apply it in the number and in field conditions.
    For the development of the first part, the Delphi 6.0 development medium, as well as the PDBDataManager component, was used to create, read and record files in PDB format.
    For the development of the program for the PCC, the development environment of PocketStudio 1.1.

  • The Bar “999”

    Desktop Apps
    The Bar “999” — example of freelancer's portfolio work in category Desktop Apps
    Programming complex for goods and cash in the bar/cafe.
    It consists of two modules:
    The officer’s module. Set of orders from the client, seal orders to the bar/ kitchen for execution, calculate the order, seal the account.
    The master’s module. Conducting the calculation of the dishes, recipes, expenses on the basis of the executed accounts in the officer's module, the maintenance of the remains, the composition of the menu, the account of the barmen and officers.
    …
    Methods used: Delphi, SUBD Interbase.

  • Printing of

    Desktop Apps
    Printing of — example of freelancer's portfolio work in category Desktop Apps
    Local software for automation of the set and printing: tax, trade, account.

    Management of the customer base, goods, bills, discount cards, discounts.

    … Instruments of Delphi.

  • The website of the shop “Beltwear”

    Web Programming
    The shop of bed clothing.
    The Joomla CMS. Settings of the template "under itself", preparation of the finished design, layer.

Reviews and compliments on completed projects 7

19 January 2017 11 USD
Packing template on Yii2

Quality
Professionalism
Cost
Contactability
Deadlines

Sergey was pleasant in communication, responded quickly and I was easily able to find a common language with him. The task was fulfilled quickly. Literally immediately after I gave the full requirements - Sergey began to fulfill and did it in less than an hour. The speed of work and adequacy in communication gave a good impression. Professionalism at the level. There were also different solutions for the task.

Roman Shevchenko | Response review

6 October 2016 2 USD
Working with FPDF on WP

Quality
Professionalism
Cost
Contactability
Deadlines

A good specialist. I quickly broke down the code and.
I recommend

Dmytro Shevchenko | Response review

12 September 2016 31 USD
Updating and adding a shareholder for currencies and bank departments

Quality
Professionalism
Cost
Contactability
Deadlines

He managed the task well. I hope for further cooperation.

Zhandos Baydildenov | Safe Safe | Response review

28 October 2015 50 USD
Finish the settings of catalog synchronization by xml file

Quality
Professionalism
Cost
Contactability
Deadlines

Sergey was perfectly dealt with the task, showed patience and perseverance by eliminating all the difficulties arising during the project.

Sergey Y. | Response review

9 October 2015 30 USD
Adding the link to form through admin. Panel and full description

Quality
Professionalism
Cost
Contactability
Deadlines

Everything is great. Everyone is satisfied. I hope for further cooperation.

Zhandos Baydildenov | Safe Safe | Response review

18 September 2015 10 USD
Repair of the open cart store

Quality
Professionalism
Cost
Contactability
Deadlines

I am satisfied with the work in general.
Quick and efficiently solved the problem on the site.
I recommend cooperation

Andrei S. | Response review

1 July 2015 113 USD
Advertising Panels on Symphony2

Quality
Professionalism
Cost
Contactability
Deadlines

The task is performed with quality and in a slurry.

Kirill Medvednykov | Response review

Activity

  Latest proposals 10
Исправить регулярку PHP
2 USD
Settings for mailing via mailgun for Laravel
11 USD
Доработка сайта на Perl plasthlado.ru
102 USD
Back end разработчик на Ларавел
158 USD
Ищу symfony разработчика для доработки проекта
113 USD
Консультация по shopify
2 USD
Обновить базу актуальных отделений перевозчика "Нова Пошта"
11 USD
Внести изменения в шаблоне Shopify
11 USD
Оптимизация кода сайта
9 USD
Packing template on Yii2
11 USD