Candidates 82
$3000 / mo
≈ $36000 / year net
Ruby on Rails Developer
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published today
Ukraine · Kyiv · 5 years of experience · Upper-Intermediate ·Published today
In my previous roles, I worked extensively with microservices architecture, primarily using ROR and Grape frameworks. My responsibilities included designing the database structure, implementing new features, and creating Swagger documentation for APIs. Additionally, I actively participated in Agile methodologies such as SCRUM and SAFE, which allowed me to contribute to project management and team coordination.
One notable aspect of my experience was that I had the opportunity to partially replace the team leader, which gave me exposure to leadership and management responsibilities.
Looking ahead, I am eager to further develop my skills in project management and leadership roles. I aspire to take on more significant responsibilities in guiding and coordinating teams, as well as contributing to the strategic aspects of software development projects. My goal is to continue growing in my career and making a meaningful impact on the success of software development initiatives.
$5000 / mo
≈ $60000 / year net
Senior Ruby On Rails Developer
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published yesterday
Javascript (HTML5, Node.js, Backbone, Jquery, Angular.js (1.6), Vue, Phonegap/Cordova, ReactJS,
Python (Django, Zope),
Shell, Perl,
Apache, Nginx,
AWS, Heroku, Docker
MySQL / PostgreSQL,
Linux (Ubuntu/Debian, CentOS, Redhat),
Rspec, Minitest, Cucumber, Selenium
Feel comfortable developing both backend/frontend sides of SPA.
$1000 / mo
≈ $12000 / year net
Ruby on Rails Developer
Ukraine · Kyiv · 1.5 years of experience · Upper-Intermediate ·Published 2 May
Ukraine · Kyiv · 1.5 years of experience · Upper-Intermediate ·Published 2 May
Experienced Ruby/Ruby on Rails back-end developer with a year and a half of commercial experience in web development. I collaborated with a small team of dedicated enthusiasts on a project that has been developing for 4 years. The project was constantly enriched with new features according to the client's requests.
Performed:
- extending existing functionality
- developing new features
- writing tests
- bug fixing
- deployment processes
- communicating with stakeholders
- collaborating with a team: PM, Team Lead, Senior BE dev, FE dev, and CEO.
Technologies I've worked with: Ruby, Ruby on Rails, PostgreSQL, MySQL, Redis, Sidekiq, Devise, Slim, ActiveAdmin, RSpec, Capybara, Git
Education: Bachelor's and Master's degrees in Computer Engineering, with a specialization in Computer Systems and Networks, earned 2017 - 2023.
I'm seeking new opportunities to expand my skill set, tackle challenging tasks, and bring innovative ideas to life.
$6000 / mo
≈ $72000 / year net
Ruby on Rails Full-stack Developer
Ukraine · 8 years of experience · Upper-Intermediate ·Published 2 May
Ukraine · 8 years of experience · Upper-Intermediate ·Published 2 May
6+ years of experience with vanilla JavaScript
5+ years of experience writing React applications
~9 month of experience with Vue.js
Experience with PostgreSQL, ElasticSearch, AlgoliaSearch, Redis, Sidekiq.
I'm a full-stack developer, and I like switching between backend and frontend tasks often. Have experience with SASS and various fontend frameworks, such as Bootstrap 3/5, bulma, spectre.css, Vuetify, Blueprint.js. A fan of Ramda.
Before that I worked for internx for more than three years as lead developer/architect and during that time I had:
- completely rewrote react app, which reduced codebase 3 times;
- optimized heroku stack which decreased expenses 6 times;
- got rid of all the memory leaks;
- integrated background jobs;
$4000 / mo
≈ $48000 / year net
Ruby on Rails Developer
Ukraine · 4 years of experience · Intermediate ·Published 1 May · In passive search
Ukraine · 4 years of experience · Intermediate ·Published 1 May · In passive search
4 years of work as a RoR developer.
$500 / mo
≈ $6000 / year net
Junior Ruby
Ukraine · Kyiv · No experience · Intermediate ·Published 1 May
Ukraine · Kyiv · No experience · Intermediate ·Published 1 May
Command line chess written in ruby:
-Designed and coded command line chess game where two players can play against each other.
-Adheres to allrules of original chess, such as preventing illegalmoves, checking checkmate or stalemate, etc.
-Developed unittests for key functionalities to ensure game quality.
Command line guessing game written in ruby:
- Designed and coded command line guessing game .
- The game was developed using Test-DrivenDevelopment(TDD).
«Software Testing Foundations: Test Techniques», 2023
«Understanding Manual Testing», 2023
«Programming Foundations: Software Testing/QA», 2023
«Learning Jira Software», 2023
«Planning and Releasing Software with Jira», 2023
$3500 / mo
≈ $42000 / year net
Full stack Ruby / Node.js / React.js developer
Ukraine · Kyiv · 8 years of experience · Upper-Intermediate ·Published 1 May
Ukraine · Kyiv · 8 years of experience · Upper-Intermediate ·Published 1 May
$6000 / mo
≈ $72000 / year net
Ruby/Ruby on Rails Developer, Team Lead
Ukraine · 7 years of experience · Upper-Intermediate ·Published 1 May
Ukraine · 7 years of experience · Upper-Intermediate ·Published 1 May
I'm a software engineer with more than 7 years of commercial experience.
I've worked in different business areas - such as eHealth, employees insurance, travel (tickets management), HR (automated tests for soft skills, IQ level), real estate, energy management, marketing and B2B (for travel tickets managing system), logistics, etc.
I know how to work with external APIs and a service-oriented architecture. Also have experience in mentoring team members and providing technical interviews as an interviewer. I know how to build applications from scratch and how to lead a team.
Some technologies I've worked with:
Ruby, Ruby on Rails, MySQL, SQLite, PostgreSQL, Mongoid (MongoDB), RSpec, Rswag (RSpec + Swagger), HTML/CSS, Bootstrap, JavaScript (+ some JS libraries), Slim, HAML, work with some servers (Heroku, Capistrano), payment systems (Stripe, Mollie), etc.
Want to spend more time with backend Ruby tasks (near 70% of working time).
$4800 / mo
≈ $57600 / year net
Ruby on Rails Developer
Ukraine · 10 years of experience · Upper-Intermediate ·Published 30 April
Ukraine · 10 years of experience · Upper-Intermediate ·Published 30 April
Ruby, Ruby on Rails, GraphQL, Redis, Sidekiq, Docker, SQL, PostgreSQL, MySQL, Redis, ElasticSearch, JavaScript, Angular, HTML, CSS
Objective: placement in company in long term relationships for full-time, preferably backend only
Responsibilities as Senior backend engineer at my last workplace:
- Building back-end REST and GraphQL APIs for frontend applications;
- Conducting refactoring, debugging, and SQL query optimization for backend
APIs;
- Researching and recommending cost-effective tools/technologies/solutions to
expedite feature implementation;
- Covering code with tests;
- Participation in weekly backend team meetings, engaging in discussions and
research for improvements in backend development.
$6000 / mo
≈ $72000 / year net
CTO / Solution Architect
Ukraine · Kyiv · More than 10 years of experience · Upper-Intermediate ·Published 30 April
Ukraine · Kyiv · More than 10 years of experience · Upper-Intermediate ·Published 30 April
Soft skills:
- Emotional intellect
- Critical thinking
- Work in the mode of uncertainty
- Introspection
- Mentoring
- Psychology
- Creativity / Developed sense of beauty
Hard skills:
- Ruby, Rust, JS, TS
- PostgreSQL, MS SQL, Cassandra, Hadoop, Elastic Search
- React(Nextjs), Vue(Nuxtjs)
- Microservices, event-driven architecture (EDA), SOA
- Terraform, AWS, Kubernetes, GitOps, CI/CD (GitHub Actions, Jenkins, Gitlab CI/CD)
- Bitcoin Core rewrote the language into Ruby in order to develop an explorer without nodes - that is, I know to the smallest detail how bitcoin is tripled
Work Experience:
March 2021 — March 2024: CTO in Marketplace NFT.
May 2020 — September 2021: CTO/COO/Developer in Blockchain, Defi Tools.
April 2019 — January 2020: CTO/Developer in Cryptocurrency exchanger.
August 2015 — April 2019: CTO/CoFounder in Blockchains explorer.
February 2016 — April 2017: CTO in Blockchain, cryptocurrency company.
January 2009 — July 2015: CTO/CoFounder in Telecom company with client ONO/Vodafone.
I am most interested in FinTech, Blockchain, EdTech projects.