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Oleg L.
Last update: 06 Dec 2018
ARCHITECT /team lead
JavaScript Ninja (React, Node.js, Angular)
Hi,

My name is Oleg Lytvynenko, I'm a Full stack Developer & Аrchitect from Ukraine with 6+ years of job experience. During this time I have been working with JavaScript, Angular, Vue.js on front-end side, Node.js, Express, Python, PHP (Yii) on back-end side and with MongoDB, MySQL, PostgreSQL databases. I also have extensive experience in using Agile Scrum methodology.

I was involved in projects as a Team Lead and Architect, worked with API, designed independent frontend/backend applications with roles and ACLs that communicates via REST API. Have an experience in designing and developing of international web-application with a complicated rating system, featured with animations and dynamics effects. Also I have 2+ year experience in development of payment gateway solutions and crypto banking applications.
GMT+2 East Europe
Kiev/Ukraine

Works

EXPERIENCE

Industry Experience

Business & Productivity, Information services & Technologies

Product Experience

data collection tools

PORTFOLIO HIGHLIGHTS

Jul `17 – Present

1 year

Beta Bank

Back-end Developer

- Designing back-end and database architecture - Developing the project's features based on the client's requirements - 3d part services API integration - Technical leading and codereview

Crypto banking application.

Technologies Stack:

Express.js Node.js Redis Google Cloud Platform

Aug `17 – Sep `18

1 year

Trastra

Back-end Developer

- Designing back-end and DB architecture - 3d part services API integration - Codereview - Communication with a remote team

Crypto banking application.

Technologies Stack:

Express.js JavaScript Node.js Google Cloud Platform

Jul `16 – Jul `17

1 year

Payment System

Full stack Developer

- Designing the DB and architecture - Integration with international payment systems using API (MasterCard, Visa, AMEX, Discover) - Developing the SOAP API to be used by e-commerce merchants for on-line payments

Advanced payment gateway solution to process secure and safe payments with tools to accept credit cards and alternate payments using mobile, eCommerce, Point of Sale, and telephone/mail order (MOTO) solutions.

Technologies Stack:

AngularJS HTML5 JavaScript MySQL Node.js CSS3 ECMAScript REST API Vue.js

May `16 – Jun `17

1 year

ProspectLinked

Full stack Developer & Team Lead

- Design of DB - Develop auto-learning system to improve accuracy of emails guessing - Implement the parser that monthly downloads DB-archives from external service. Script processes terabytes of information and determines validity of emails by coincidence of a predetermined templates - Develop auto-reallocating priorities of e-mails templates system based on the successful/unsuccessful responses - Integration with external scraper into the system to get more information about a person

Innovative application to help salesmen to get person's emails basing on first and last name, company. http://prospectlinked.com

Technologies Stack:

AngularJS HTML5 JavaScript MongoDB Node.js PostgreSQL Python Socket.IO Chrome Extension CSS3 REST API

Industry:

Business & Productivity, Information services & Technologies

Product:

data collection tools

Works:

Jan `16 – May `16

4 months

Optimization service for HR department

Architect & Full stack Developer

- Designing of the project architecture with 5 roles and different permissions and functionality in the system - Implemented functional of multilevel survey - Developed of real-teme constructing of charts based on data analytics

Service that allows to collect and process information about employees of certain industry.

Technologies Stack:

AngularJS HTML5 MySQL PHP Yii 2 Bootstrap CSS3 Sass

Mar `15 – Jan `16

10 months

On-line battle application

Architect & Full stack Developer

- Designing of project architecture - Developed system of the roles and permissions - Developed admin panel based on material design theme - Implemented the system of levels, rates and results of the game - Developed high-load animation - Integrated Google Analytics & Yandex.Metrica

Contest web-application introducing online battles among IT sysadmins. Complicated rating system.Featured with animation and dynamics effects.

Technologies Stack:

Apache HTML5 JavaScript jQuery MySQL PHP Yii

Oct `13 – Sep `15

1 year

Service to create a signature (personal account)

Architect & Back-end Developer

- Designing of the project architecture - Developed CRM system in admin area - Integrated social networks - Developed real-time signature constructor - Technical support

Innovative service that helps you create outstanding signatures for your favorite email services. You can choose colors, pictures, links to social networks, contact information, etc.

Technologies Stack:

MySQL Yii Bootstrap Sass REST API

Jul `13 – Aug `13

1 month

Jason

Back-end Developer

- Implemented of a parser for an input file - Developed functionality of calculations based on parsed information and inserting the results into the final outcome documents - Optimization of the speed of parsing

Automatization of working with documents for international shipments.

Technologies Stack:

HTML5 JavaScript jQuery MySQL PHP Yii 2

Apr `13 – Jun `13

2 months

SunInBev Facebook application

Full stack Developer

- Implemented registration functionality - Developed downloading of projects (form filling and loading of documents), - Implemented a voting system - Implemented the system of automatic winner determining

Facebook web app, created for the competition of social projects.

Technologies Stack:

PHP Bootstrap

Jan `13 – Mar `13

2 months

IgiMED

Architect

- Taking part in preparation of technical documentation and prototypes - Designing of the project architecture

Web application that simplifies reporting, optimize the process of filling medical forms. The system provides a variety of roles and levels of access to filling and editing of patients data.

Technologies Stack:

JavaScript

Sep `12 – Dec `12

3 months

Stream-telecom

Back-end Developer

- Technical support

Web site, representing a personal account for the user IP-telephony services. It provides users with a complete statistics for all calls within its company, with the ability to listen to the recording of conversations.

Technologies Stack:

Ajax HTML5 JavaScript jQuery MySQL PHP Yii 2 Bootstrap CSS3 Redis

Apr `12 – Sep `12

5 months

Megaringer

Back-end Developer

- Taking part in designing of project architecture - Developed the system of dynamic call tracking linking the call to a specific Client who visited the site. - Integrated Google Analytics & Yandex.Metrica

Effective call tracking service to help analyze offline conversions.

Technologies Stack:

Google Analytics JavaScript MySQL PHP Bootstrap Google Analytics API

Jan `12 – Mar `12

2 months

Coffee-man E-commerce

Back-end Developer

- Designed of project architecture - Implemented analytic system

Modern e-commerce site selling coffeemakers, coffee and related accessories with high conversion.

Technologies Stack:

JavaScript MongoDB MySQL Chrome Extension

EDUCATION

Police Academy Ukraine

Bachelor of Commerce, Finance

Web development agency #235

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