Михайло

Contact
[open contact info](look above in the "contact info" section) (Mobile)
Mykhailo Mykhalov
[open contact info](look above in the "contact info" section) Ruby on Rails Developer
Ukraine
[open contact info](look above in the "contact info" section)
mikhaliov (LinkedIn)
github.com/legiar (Personal) Summary
I'm a Ruby on Rails developer with more that 6 years extensive
Top Skills
experience in commercial development.
CSS
Ruby on Rails
I have good knowledge and experience with many Rails-related
Ruby
technologies, that allow to building high quality products.

Languages
Fully participate in the each project and invest in it the whole soul. I
Английский (Limited Working)
follow generally accepted coding style and best practices.
Русский (Native or Bilingual)
Украинский (Native or Bilingual)

Experience
Blackbird Lab
Ruby on Rails Engineer
March 2020 - July 2023 (3 years 5 months)
Kyiv, Ukraine

Project that helps shoppers to provide for their families by making life more
affordable. The product is built to work with over 90% of retailers in North
America. Retailers use a digital shopping marketplace to connect with millions
of shoppers to deliver a personalized experience.
Backend: RoR 3.2, 5.1, 6.0. MySQL, PostgreSQL, Redis. AWS Ec2 and
Kubernetes. AWS Kafka.

Verbit.ai
Rails Developer
June 2018 - November 2019 (1 year 6 months)
Kiev Region, Ukraine

Verbit is a leading transcription and captioning solution that fuses artificial and
human intelligence to provide 99.9% accuracy at a rate 10 times faster than
the industry standard.
Built on self-learning algorithms, Verbit is the only platform that leverages
contextual data, specific acoustic models and current events to provide each
customer with a tailored model that keeps improving with time.

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Technologies: Rails 5, Postgresql, Redis, Sidekiq, Resque, Heroku, AWS,
Google API
Develop new feature, create architecture for some features. Fix production
issues. Refactor obsolete code.

Mootha Corp
Ruby on Rails Developer
September 2016 - December 2017 (1 year 4 months)
Kiev Region, Ukraine

New innovation system for aggregate web services (such as VPS, CDN, DNS
etc.) from different IT services providers. Also include solution to build own
services, based on own hardware stack.

Multi services (based on business units) , Rails 5/Python, PostgreSQL,
Sidekiq, RabbitMQ, Gnocchi (time series db), OpenStack (keystone, glance,
swift)

Create solution, architecture of those system, implement DNS,CDN,Storage
and VPS services. Develop some milestones of services. Grow team and start
these services on own hardware stack on beta production.

AgileEngine
Ruby on Rails Developer
March 2016 - August 2016 (6 months)
Ukraine, Kyv

Marketing product that has tight integration with major social networks and
allows sending of messages, analytics, answers and comments.
• Translate business and functional requirements into technical approach,
solution, and technical design specifications
• Estimate project workload and resource availability to create resource plans.
• Develop Project Plan and schedule for software development and delivery.
• Collaborate with software developers to implement product requirements and
problem solve any issues that would impact scheduled delivery.
• Development of Back-End features

Technologies used: Rails 4, MySql, Redis, MemCache, MongoDB, Sidekiq.

Star
Ruby Engineer
February 2014 - March 2016 (2 years 2 months)
Kyiv, Ukraine
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Work on different outsourcing projects, such as:
1. Web application for providing software update service for embedded
devices. Contains public and private parts, management area.
- Started from scratch.
- Send download/query metrics to Graphite.
- Management parts with role-based access permissions.
- Technologies used: Rails 4, Postgres, Redis, RSpec/Cucumber, Resque,
TwitterBootstrap, Slim, Sass, CoffeeScript

2. Service that provides digital data rooms for simple and secure sharing of
confidential documents. The product provides companies with the ability to
store, flexible access electronic documents that require high security.
- Create next version of product.
- SOA. Implement more that 15 different services.
- Complex messaging bus, that support flexible rules to delivery event
messages to different services.
- Complexity integration testing all services
- Gems (library) creation.
- Technologies used: Rails 4, Postgres (with ltree), Redis, RSpec/Cucumber,
Resque, RabbitMQ, EventMachine (Goliath), Websockets, Own gems.

3. Internet radio and personalized media delivery platform. An innovative
product that allows you to deliver media content to the user based on his
preferences, geographical location, time of day and many other parameters.
Apart from the application has hardware support for several types of vehicles,
and physical devices.
- Migration of existing monolithic application to SOA.
- Design the new data model.
- Implement new functionality for delivery content directly from providers
partners.
- Technologies used: Rails 4, MySQL, AWS, RSpec, Resque.

Svitla Systems, Inc.
Ruby on Rails Developer
April 2013 - January 2014 (10 months)
Kiev, Ukraine

Work on different outsourcing projects, such as:
1. Telecommunication platform. Work on client area (rich application, based on
Backbone) and next version of backend side (based on Sinatra, multi-thread
(fiber), and use different api as datasources)

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2. Philanthropic platform, which makes it easy for you to give to the charities
you are passionate about, just by shopping online for your favorite brands
and without spending extra time or money. Work on speed optimization, using
ElasticSearch as caching and search engine to provide very fast selecting
products from million rows.

3. Financial service for American market. Work on fast exporting large data to
exretnal mailer system. Also work on speed optimization. Work on migration
one of the service from Rails 2 to Rails 3.

4. Service oriented platform for forward-thinking entertainment companies,
that help fund, design, launch, operate and grow his bussines. Work on
different services (based on Sinatra and NodeJS), such as user accounting,
rule system (for game actions) and commerce system (for virtual and real
currencies, game items etc.)

Education
Kharkiv National University of Radioelectronics
· (1997 - 2002)

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