Євгеній

Evgen Poshtarenko
Ruby on Rails Developer
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Kyiv, Ukraine

Ruby on Rails developer with 4 years of experience. Professional in creating API, working with
databases, setting up infrastructure, refactoring, testing, and fixing bugs. Collaborated effectively
with international teams. Passionate about self-development and a fast learner.

Professional skills

Languages: Ruby, Python, JavaScript
Frameworks: Ruby on Rails, Django, React
Databases: PostgreSQL, MySQL, SQLite
Infrastructure: Linux, AWS, Docker, CI/CD,
CircleCI
Testing: TDD, Rspec, UnitTest, Cucumber,
Selenium
Web technologies: RESTful API, HTTPS
Paradigms: OOP, SOLID, KISS, DRY, YAGNI,
Design Patterns
Gems: Devise JWT, Rubocop, Bullet, Simplecov,
Active model serializer, Swagger, Cancancan,
Rolify, Factory bot, Faker, Byebug, Carrierwave,
Prawn, bcrypt, Xmlhasher
Remote work: Scrum, Jira
Code Management: Git, GitHub, Gitflow
Data Science: NumPy, Pandos
Telegram: Telebot, Aiogram, Telethon

Work experience

Hygge
March 2023 – current time

The platform for selling tech Responsibilities:
March 2023 – current time  developed a logic of offer that depends
Depending on the user's role, the product on the user’s role;
simplifies selling and buying tech using  worked with third party API;
different dashboards.  created the API for offers and orders
Stack of technologies: Ruby on Rails,  maintained existing code and fixed bugs;
PostgreSQL, Redis, Rspec, Rolify, AWS,  worked with AWS and Docker;
Docker, JavaScript, Vue.js, HTML, CSS.  covered code by unit tests.
 Evowill
February 2021 – March 2023

Application for purchase deals Responsibilities:
December 2022 – March 2023  developed the API and worked with
The main idea of the product is that companies third-party APIs;
or resellers could create purchasing contracts  maintaining existing code;
with public educational institutions in Britain.  worked with the database and made
Stack of technologies: Ruby on Rails, functionality for it;
PostgreSQL, React, Rspec, Swagger, Bullet,  fixed bugs and created tests by Rspec.
SimpleCov, Faker, AWS S3, Docker.

Application for managing Telegram bots Responsibilities:
February 2021 – October 2022  created the admin panel, including
The product allows the creation of Telegram Front-end and design;
bots that an administrator can manage using a  designed the database structure;
phone.  developed premium subscription logic
Stack of technologies: Ruby on Rails, Devise, and the functionality for collecting
telegram-bot-ruby gem, PostgreSQL, statistics;
JavaScript, HTML, CSS.  was responsible for developing API;
 fixed bugs on Back-end and Front-end
parts;
 set up Devise JWT.

Polytech Software
September 2019 – December 2020

The storage inventory control application Responsibilities:
March 2020 – December 2020  as a sole Back-end developer, created a
The application provides the ability to control database structure and API from scratch;
storage that contains private cells that small  implemented categories and
entrepreneurs use. subcategories logic as a tree;
Stack of technologies: Ruby on Rails,  separated roles for admin and customers;
JavaScript, React, MySQL, Redis, Pundit,  developed an admin panel;
Docker, Circle CI, Rspec.  worked with Rspec tests and Circle CI.

The app for managing personal finances Responsibilities:
January 2020 – March 2020  created a service for displaying graphs
The main idea of the product was the ability to for statistics logic;
track spending.  developed new features and maintained
Stack of technologies: Ruby on Rails, existing code;
PostgreSQL, JavaScript, React, HTML, CSS,  set up CircleCI;
Devise, AWS, Ajax, Circle CI, Rspec.  fixed bugs in the Back-end and Front-
end;
 covered 100% of the code by tests.
The sailors' application Responsibilities:
September 2019 – January 2020  took part in maintaining and bug-fixing;
The product allows the calculation of  refactored SQL queries;
coordinates and routes necessary for sailing and  creating API endpoints;
sea trucking.  covered the code by unit tests;
Stack of technologies: Ruby on Rails, MySQL,  participated in Scrum events and code
Geocoder, AWS, Rspec. reviews.

Education
The National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute."
Department of Computer Science.

Languages
Ukrainian — native, English — Upper-Intermediate.