Sergiy L.
Private message
Offer work
Kyiv,
Ukraine
available for hire
Rating
CV
My experience in programming is 20 years.
At the beginning of my career in programming, I spent 5 years studying C++. During this time, I developed programs for simulating processes in space and software for processing the results of astrophysical research. I became interested in SmartHouse technology – "smart homes" – and studied Verilog, a language used for programming logic circuits. In essence, the logic of a programmable logic circuit is not predetermined during manufacturing; it is programmed. This means that the same circuit can perform different functions if programmed differently.
Afterward, I delved into Web 2.0 technologies and began developing websites, modules, online stores, portals, and platforms for travel agencies. Currently, I specialize in designing and creating complex, high-performance systems and services. I create CRM and ERP systems, APIs for web and mobile applications, e-learning platforms, and much more. I focus on tasks that are interesting, challenging, and demand substantial intellectual resources.
For collaboration proposals via a Personal Contract (lower commission):
Skills and abilities
Programming
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Bot Development
from 68 USD for hour
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Databases & SQL
from 56 USD for hour
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HTML & CSS
from 34 USD for hour
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Javascript and Typescript
from 41 USD for hour
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PHP
from 68 USD for hour
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Testing & QA
from 36 USD for hour
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Web Programming
from 38 USD for hour
Design & art
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Interface Design (UI/UX)
from 43 USD for hour
Services
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Customer Support
from 68 USD for hour
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Cybersecurity & Data Protection
from 81 USD for hour
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Data Processing
from 72 USD for hour
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Information Gathering
from 68 USD for hour
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Online Stores & E-commerce
from 41 USD for hour
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Payment Systems Integration
from 45 USD for hour
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Website Development
from 37 USD for hour
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Website Maintenance
from 90 USD for month
Photo, Audio & Video
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Audio & Video Editing
from 38 USD for hour
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Audio Processing
from 38 USD for hour
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Music
from 41 USD for hour
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Speaker & Voice Services
from 68 USD for hour
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Transcribing
from 61 USD for hour
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Video Processing
from 56 USD for hour
Promotion
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Marketing Research
from 68 USD for hour
Administration
Outsourcing & consulting
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Client Management & CRM
from 68 USD for hour
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Consulting
from 338 USD for hour
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Project Management
from 902 USD for unit
Translation
Writing
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Technical Documentation
from 68 USD for hour
Portfolio
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25 000 USD Online shop Sostless Sarpet (2018)
Web Programming
Store for a large American company https://www.costlesscarpet.com/, presented in many states. The design owner of the company encouraged exactly this (something Americans are so long-standing - most of them do not accept and do not use the trending things in design). But in this store, the main thing is not the design - but the high traffic and a large base of goods., which must be released quickly.
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7000 USD Valswedding - Wedding Agency
Web Programming
Vimeo: https://vimeo.com/valswedding
Instagram: https://www.instagram.com/valswedding/
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8000 USD Shop with printed pockets
Web Programming
The online store with the printer designer for the basement and the adminka. You can use photos from the PC or social media albums that are uploaded to the site through the social media API.
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8000 USD The Wildjam Media Network (2015)
Web Programming
The Wildjam Media Network is a platform to unite bloggers and advertisers. For each blogger and advertiser there is a profile where according to the information provided using the API graphs and diagrams are built to give advertisers the opportunity to see the popularity indicators and to assess the advertising campaign budget for that blogger. Also, Wildjam is an information field that reflects events and campaigns.
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80 000 USD Repeatmobile
Web Programming
Repeatmobile – a platform for learning and professional development.
The functionality of this site is very broad. There are teachers and students. Teachers can create courses with the teaching material - video, questions and tests. This is a very flexible system in which, in addition to a variety of material for learning, the teacher decides himself when the courses and tests from the next level are available to one or another student. Students can take courses and increase the rating by studying the material. Also present games (duels) is a test of several people, created in the form of a game. The winner is the one who gives the most correct answers.
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Wedding agency in Greece
Web Programming
I have developed a CMS for the site.
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Plastic Surgery - Clinic's Website (2015)
Web Programming
The site of the clinic of plastic surgery with the possibility of registration for the session.
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Online Shop of Elite Clocks (2015)
Web Programming
He developed a functional online store with filters, possibility of purchase, admin and CMS.
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The Fitness Studio INSPIRATION (2015)
Web Programming
Site, personal office for the client studio, CMS, admin. The Panel.
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The Detective Agency (2015)
Web Programming
A simple website with a lot of services. Developed by admin and CMS.
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Landing Page of Office Furniture (2015)
Web Programming
I have developed a website and CMS with admin.
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Manufacturing of Advertising Designs (2015)
Web Programming
I have created a website, CMS, and admin.
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Sales of trademarks (2015)
Web Programming
I have created a website, CMS, and admin.
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Women's and Children's Clothing Online Shop (2015)
Web Programming
I have developed a store, CMS, and a CRM manager.
Reviews and compliments on completed projects 21
24 January 2024
451 USD
Screenshot for fixing the visitors' actions of the site
Sergey is completely satisfied. I performed quickly, quality and even a little more than it was in the initial TZ. In addition, Sergey recorded a detailed video instructions for the service, which removed a lot of questions. Soon I’m going to go back to the project.
19 July 2022
41 USD
Create a video download page with Vimeo (JS include)
Everything is wonderful. very fast. thank you
9 July 2022
27 USD
Dynamic title catalogue - site on yii2
In the process of solving the assigned task, we found the shortcomings of the existing code, which did not prevent Sergei from realizing my request. Thank you for the responsible approach to the matter.
9 July 2022
41 USD
Обновление title после утверждения фильтров
This project was an upgrade to the previous task, from which the surprises left by the early developers "go" out. Thank you Sergey for the systematic approach to finding a solution. The task is carried out in full volume and quickly, in constant communication with me.
29 June 2022
158 USD
Course of
He has done his job, he knows his job.
29 June 2022
56 USD
Create a project
The work was done very well. He was always in touch and responded to my comments.
18 June 2022
34 USD
Preparation of a graduate work (mobile translation "Culinary Book")
The project is done clearly and in time, work satisfied
11 June 2022
5 USD
Change logo and text to "Futcrk" on Laraval v8
Thank you ! We will deal with new tasks!
| Response review
10 June 2022
86 USD
Search search, integrate player plyr.io into quiz
Everything is great, always in contact, quickly responds to requests, the task has been done quite quickly ) Thank you for help
8 June 2022
29 USD
It's a search video (YouTube).
Everything is fast and quality, no problem, I advise, reliable as Swiss clock, thank you for work
4 June 2022
68 USD
Diplomacy Project
The developer has developed a good accurate website. pleasant communication, was always on the link everything was great
3 June 2022
23 USD
Editing of the Laravil site
Excellent work, always pleasant to work with professionals. Always in connection, to the rights to be treated with understanding. I recommend it.
3 June 2022
8 USD
Help to finish the site.
Thank you ! )
Sergey a lot, spent a little more time as he had and proposed an alternative way to solve the problem. He knows what he’s doing, thank you very much, I’m going to do it in the future.
1 June 2022
11 USD
Add site. Deploy
Thanks to the Great!
Everyone is 100%
The pleasure!
10 April 2019
27 USD
Make a website with a key
Everything was done quality and well! to improve tz, picked the hosting, placed the site on it, everything clearly and easily.
8 April 2019
2 USD
Repair Js on the pope
Great work. Sergey fulfilled a task that others could not fulfill. I have launched the same project three times. Fast, quality and professionally. What to say, what a specialist is that and the result. thank you. I recommend it.
3 April 2019
10 USD
Posts on the site written on yii2
Sergey quickly completed the task, fix the site and I want to continue working with him on this site. And in the future, it can not only do so. Thank you for work!
2 April 2019
1 USD
It is necessary to change the elementary part of the website code.
The work is done quality, quickly and without instructions. I strongly recommend!
14 August 2018
51 USD
The online store
The execution was rewarding.
Until now the line has been completed. I hope the rest will be done as agreed. I also hope for further cooperation.
The project is implemented. Everything is very good. We continue the work. 10 / 10 .
| Safe
| Response review
19 April 2018
7 USD
Small links on the sites
I am very pleased with Sergey’s work:
- reversible
Competent
Consciously
Responsible
These are the qualities I appreciate in the performers. Thank you very much Sergey for your work. I will be contacting again!
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Need to remove the block from Instagram.
45 USD
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A website for displaying user visits to sites in real time.
451 USD
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Programmer for a custom-built website
113 USD
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Instagram clone page
226 USD
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Project: Analysis and simulation of fake conversions in Scaleo (CPA tracker)
158 USD
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Development of the website on Laravel
226 USD
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Improvements on the website for the frontend. The website is on Laravel
151 USD
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Laravel correction of comments based on SAST analysis results (DerScanner)
97 USD
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Need a man 35+ for video shooting
23 USD
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Freelance project
23 USD
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