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Sergei K.
Last update: 06 Aug 2019
MIDDLE
Ruby/Angular/Vue Full-stack Developer
I'm a professional full-stack developer with a high technical skill level and over 4 years of web development experience focused on backend and use Rails as a primary framework. I've worked on high traffic websites and numerous projects in various areas like internet banking, payment and shopping aggregators, medical software, site parsers to form the best deals. I have been working as a full-stack developer for 4 years (Ruby on Rails + Angular/jQuery/Vue). I'm experienced with RESTful APIs and able to design and structure a Rails-based backend architecture. When working on a new project, I like to speak with my clients so I can have a clear understanding of their needs and vision of the project.
All rates are indicative, annual rate includes 3% discount
3% discount on yearly basis
Usually responds within 1 hour
GMT+4 Russia Europian Region
Rostov-on-Don/Russia

EXPERIENCE

Industry Experience

E-Commerce & Retail, Banking & Finance, Advertising & Marketing, Booking & Rent, Automotive, Healthcare & Medicine

PORTFOLIO HIGHLIGHTS

Jun `18 – Oct `18

4 months

Deal Central

Full-stack Developer

I maintained the project, fixed bugs, added new features, conducted full-stack development.

Deals and coupons aggregator that allows managing deals, stores, coupons and prize drawings. In order to submit a deal, a user needs to paste the link to this product on an e-commerce website. This platform helps users buy products on e-commerce websites at more competitive prices. All the product information is uploaded automatically with an option of manual data entry. The purpose of submitting a deal is to help users buy products on e-commerce websites at more competitive prices.

Technologies Stack:

API PostgreSQL Ruby Vue.js

Industry:

E-Commerce & Retail

Works:

Feb `18 – Jun `18

4 months

Onpay

Full-stack Developer

I integrated payment APIs, adjusted databases with the help of AWS encryption, implemented credit cards encryption according to Payment Card Industry Data Security Standard (PCI DSS). Besides, I marked up the landing page and forms.

Billing aggregator Onpay.ru offers the services for conduction the reception of electronic payments on site by means of all the most common methods of payment in RuNet (Visa, MasterCard etc). Assembled electronic money can be automatically converted and output in other dates of a user’s electronic payment systems or displayed in a bank account. Onpay combines projects for entrepreneurs, users and a large number of support services.

Technologies Stack:

jQuery MySQL Ruby on Rails Sinatra Ubuntu Angular 2x

Industry:

Banking & Finance

Works:

Nov `17 – Jan `18

2 months

Riders Family

Full-stack Developer

I fixed bugs, added a number of new features and conducted deployment.

The website of the Riders Family hotel, the main advantage of this website is the flexible configuration of the entire UI via the admin page. It’s possible to create new pages and fill in various information and components like carousels, photo albums, articles, showcases, and others.

Technologies Stack:

jQuery PostgreSQL Ruby on Rails Ubuntu

Industry:

Advertising & Marketing

Works:

Aug `17 – Nov `17

3 months

Domofon

Full-stack Developer

I performed deploy, fixed bugs, built a parser for websites and documents. I also worked with Google Maps.

a web application to combine all the ads for the sale/lease of various real estates. It helps create ads, specify the coordinates of an advertised real estate, as well as pars other websites of the city and various documents prepared by realtors to automatically create actual ads. The application possesses the flexible Admin page with the project metrics performed by means of graphs and statistics.

Technologies Stack:

Google Maps jQuery PostgreSQL Ruby on Rails Ubuntu

Industry:

Booking & Rent, Automotive

Apr `17 – Aug `17

4 months

My Patients

Full-stack Developer

I marked up and implemented various complex forms, worked on such features as employees accounting, appointment system, patient records creation, a doctor’s workplace, and introduced Agile as well.

Web application for medical organizations. It performs accounting of employees/patients, controls all analyzes checking and automation of work with the laboratory. It also conducts work with cash and fiscal devices, makes an appointment with the full control of the patient at all stages of treatment with the introduction of agile.

Technologies Stack:

ASP.NET MySQL TypeScript Windows Angular 2x

Industry:

Healthcare & Medicine

Works:

EDUCATION

Southern Federal University

Bachelor in Applied Mathematics and Computer Science

Southern Federal University

Master in Applied Mathematics and Computer Science

Web development, CRMs and ERPs agency #874

50-100
Rostov-on-Don/Russia
GMT+4

Industries

Banking & Finance, Human Resources & Career, Advertising & Marketing, Law & Government, Automotive

Web solutions for startups, corporations, and governments. We are advocates of transparent Agile processes and looking for customers with competence is as high as ours. At the moment we have 60+ in-house developers working at WIS. Our team is experienced in timely delivery of MVPs, start-ups, fully loaded banking systems, gambling engines, government projects, SaaS and online games. Our favorite technology stack includes Python/Django and Angular, responsive and adaptive layout. We build high-loaded and complex systems taking full advantage of this stack. We have a great amount of ready-to-use solutions that allow us to reduce solving time in most of the tasks. Moreover, if you need a platform or a framework that’s not on the list of our expertise we can discuss the possibility of creating a hand-picked team in the shortest time possible to deliver that project to you in case we see potential in it.

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