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Denis Zemlianoy
Ruby/JS developer
Ruby/JS developer with Upper-Intermediate English level and strong soft skills
Rubygarage
Dnipropetrovs'kij Nacional'nij Universitet
Dnipro, Dnipropetrovsk Oblast, Ukraine
Professional Background
- Current statusEmployed
- ProfessionFull Stack Development
- Fields
- Work experience6-10 years (4-6 years relevant)
- Management
- Skills
- LanguagesEnglish・Professional
- Highest level of education
Job search preferences
- Desired job typePart-time・Interested in working remotely
- Desired positionsRuby/JS developer
- Desired work locations
- FreelancePart-time freelancer
Work Experience
Backend Tech Lead
Managing of 15 teams.50 developers.
Responsibilities:
- Improving KPI's for developers
- Improve the process of development
- Technical consulting of clients
- Technical consulting of developers
- Code Review of team's projects
- Perform an interview's with backend candidates
- Code Audit the projects
- Implement technical part of SCRUM / Agile processes
Also technologies known
- Trailblazer
- Optimizing databases (Indexes, Database Views, Functions, e.t.c)
- GraphQL approach
- Payment providers approach
- Delivery providers approach
- Terraform
Ruby Courses Mentor/Organizer
Responsibilities:
Tutoring the courses and organization the process of the course
Materials - rubygarage.github.io
Ruby / JS developer
The platform to connect car renters and car owners in Dublin(Ireland)
- Backend development using Ruby / Ruby on Rails
- Small front-end tasks based on React / Redux
- Managing of a team (4 Ruby developers)
Additional knowledge:
- AWS stack - (RDS, ECS, ECR, Elastic Cache, Cloudfront, Cloudwatch, e.t.c)
- Management skills
- Team KPI set-up
- Canary deployment
- Refactoring skills
Ruby / JS developer
It's a b2c soft that allows movers to connect with drivers and schedule the movement the stuff from place A to place B
- Backend development using Ruby / Ruby on Rails
- Small front-end tasks based on React / Redux
- Managing of a team (3 full-stack developers)
Additional knowledge:
- Docker / Docker-Compose
- Business logic - Trailblazer stack
- Continuous integration / delivery /deployment
- Capybara & PageObjects approach
- Pair programming
Ruby / JS developer
(via RubyGarage)
It's a HIPPA health care support soft for managing internal operations
- Backend development using Ruby / Ruby on Rails
- Small front-end tasks based on React / Redux
- Everyday communication with the development team from the USA
Additional knowledge:
- Web sockets(Faye, Action Cable)
- Business logic - Active Interactions
- Exception tooling (Sentry)
- Monitoring tool(New Relic)
- Postgresql (Partitioning, Replication, Backup)
- Background jobs (Sidekiq)
Ruby developer
- Backend development using Ruby / Ruby on Rails
- Small front-end tasks based on Pure Javascript / JQuery
- DevOps tasks, based on Chef / Capistrano and AWS stack
Team Lead
- Team lead a team with 3 full-stack developers.
- Full-stack development based on PHP/Laravel and JQuery
- Support DevOps