Team Lead & Lead DevOps
5 years
Develop web apps and utilities on Ruby on Rails.
Responsibilities:
- Development web apps and utilities on Ruby on Rails;
- Optimize system performance;
- Memory leaks detection and fixies, speedUp, and full refactoring applications;
- Implement performance and architecture best practices.
Technologies: AWS, RoR, Azure DevOps & Portal Resources, Sidekiq, Heroku, Google Cloud Services, Solaris, Haml/Sass/CoffeeScript, React, Cucumber & Rspec & Capybara, PostgreSQL, ElasticSearch & PostgreSQL search, Redis, Mina, Git, Monit, God, gRPC, Websockets.
Senior Full stack developer
2 years
Development of web apps and utilities.
Responsibilities:
- Development web apps and utilities on Ruby on Rails;
- Optimize system performance;
- Memory leaks detection and fixies, speedUp, and full refactoring applications;
- Implement performance and architecture best practices.
Technologies: Neo4j (Aura) & Cypher, AWS, Ansible, Terraform, Sidekiq, React, Redux, ReactRails, Haml/Sass/CoffeeScript, Rspec, PostgreSQL, Git, gRPC, Websockets.
Senior performance engineer
2 years
Applications development.
Responsibilities:
- Optimize system performance;
- Build and Establish performance engineering tools and framework;
- Scale product performance by optimizing application code, platform, and infrastructure;
- Scale product performance to support multi-tenant deployments, and very large single-tenant deployments in SAAS;
- Establish system performance benchmarks, performance dashboards;
- Proactively identify performance bottlenecks in product prerelease and customer environments;
- Implement performance best practices.
Technologies: Go, Rust, Ruby, JRuby, Scala(Gatling), Java, Javascript(NodeJS), RoR 3-5, MySQL, Cassandra, Sphinx, Redis, AWS, Chef, Git, God, Haml/Sass/CoffeeScript, JQuery, Angular, Jenkins, TeamCity, Jmeter, Gatling, Rspec, Capybara.
Full stack developer
13 months
Development tickets management system.
Responsibilities:
- Development web apps and utilities;
- Optimize system performance;
- Memory leaks detection and fixies, speedUp, and full refactoring applications;
- Implement performance best practices.
Technologies: Ruby, Go, RoR, Sinatra, Gin-gonic, Used technologies - RoR, AWS, Sidekiq, Heroku, Google Cloud Services, Haml/Sass/CoffeeScript, JQuery, AngularJS, VueJS, Cucumber & Rspec & Capybara, PostgreSQL, ElasticSearch & PostgreSQL search, Redis, Mina, Git, Monit, God.
Full stack developer
2 years
Development of web apps and utilities on Rust, Ruby, and jRuby.
Responsibilities:
- Implement performance best practices;
- AWS (EC2 for a single instance, Lamba for croned tasks, AWS Push Notification Service, Route 53 for setting DNS records, S3 for backup and assets, Elastic IPs, SES for the mailer, SQS for service messaging, IAM for identity and access management, Elastic Beanstalk with autoscaling);
- Optimize system performance;
- Memory leaks detection and fixies, speedUp, and full refactoring applications.
Technologies: RoR, Sinatra, Gin-gonic, Gorilla, Iron, GrapeAPI, Heroku, AWS, Haml/Sass/CoffeeScript, JQuery, Webpack, Microservices, Cucumber & Rspec, PostgreSQL, Sidekiq, ElasticSearch, Redis, Capistrano, Git, Monit, RoR 3-5, MySQL, Cassandra, Sphinx, Redis, RabbitMQ, AWS, Chef, Git, God.
Full stack developer
15 months
Development of web apps and utilities on Go, Rust, Ruby, and jRuby.
Responsibilities:
- Development web apps and utilities;
- Implement performance best practices;
- AWS (EC2 for a single instance, Lamba for croned tasks, AWS Push Notification Service, Route 53 for setting DNS records, S3 for backup and assets, Elastic IPs, SES for the mailer, SQS for service messaging, IAM for identity and access management, Elastic Beanstalk with autoscaling).
Technologies: Go, Rust, Ruby, jRuby, Used technologies - RoR, Sinatra, GrapeAPI, Heroku, AWS, Haml/Sass/CoffeeScript, Jquery, Cucumber & Rspec, PostgreSQL, Sidekiq, ElasticSearch, Redis, Capistrano, Git, Monit, RoR 3-5, MySQL, Cassandra, Sphinx, Redis, AWS, Chef, Git, God.
Full stack developer
13 months
Development of web apps and utilities on Rust, Ruby, and jRuby.
Responsibilities:
- Development web apps and utilities;
- Implement performance best practices;
- Optimize system performance;
- Memory leaks detection and fixies, speedUp, and full refactoring applications.
Technologies: RoR, Sinatra, GrapeAPI, AWS, Haml/Sass/CoffeeScript, JQuery, Microservices, Cucumber & Rspec, MySQL, Sidekiq, ElasticSearch, Redis, Capistrano, Git, Monit, RoR 3, MySQL, Sphinx, Redis, RabbitMQ, AWS, Chef, Git, God.
Full stack developer
14 months
Development and support communication management system.
Responsibilities:
- Development web apps and utilities on Ruby.
Technologies: RoR, Sinatra, GrapeAPI, AWS, Haml/Sass/CoffeeScript, Jquery, Cucumber & Rspec, PostgreSQL, Sidekiq, ElasticSearch, Redis, Capistrano, Perforce, Monit.
Senior Ruby developer
10 months
Development of an online freight auction.
Responsibilities:
- Development an online auction web-app with using the ROR framework (2 and 3 versions);
- Creating and servicing hosting on Centos for created app.
Technologies: Haml/Sass/CoffeeScript, Cucumber & Rspec, MySQL, MongoDB, rescue/resque-scheduler, Redis, Capistrano, Git, Monit, RoR.
Team lead, CTO
17 months
Development online medicine appointment system.
Responsibilities:
- Build a development team;
- Duties management;
- Creation of build processes with Agile, Scrum;
- Development web application from a scratch (architecture);
- Development test infrastructure;
- Development and support production environments (dedicated servers).
Technologies: Haml/Sass/CoffeeScript, Cucumber & Rspec, MySQL, MongoDB, rescue/resque-scheduler, Redis, Capistrano, Git, Monit.
Software Developer
10 months
Creating RoR.
Responsibilities:
- Development of apps for Unix systems on ruby (statistic systems and process analyzer, log analyzer);
- Development of web apps with RoR 2,3 versions;
- FreeBSD instance deployment.
Technologies: Haml/Sass/CoffeeScript, Cucumber & Rspec, MySQL, MongoDB, rescue/resque-scheduler, Redis, Capistrano, Git.
PHP developer
4 years
Creating small web applications, Unix systems (live-streaming video, statistics collector, etc.), and technical support hosting of Unix-based applications.
Responsibilities:
- Support of FreeBSD instance;
- Development of web-applications;
- Video broadcast systems support.
Technologies: firewall, postfix, nat, bind9, tomcat, LAMP, PostgreSQL, red5, LAMP, RoR, javascript, jQuery, MySQL, Git.
Upstaffer since September, 2022
