Pavel is available for hire
Hire PavelPavel Pachkovsky
Verified Expert in Engineering
Software Developer
Location
Bialystok, Poland
Toptal Member Since
January 29, 2016
Pavel is a full-stack engineer with more than 13 years of experience developing web applications with Ruby on Rails and JavaScript. He can build responsive and functional front ends, secure scalable back ends, and set up automated deployment processes. Pavel can both manage a team of developers and work under direction.
Portfolio
Broker Buddha
AngularJS, Ruby on Rails (RoR), GraphQL, MongoDB, Angular, NgRx, Terraform...
Azati Corporation
Docker, AngularJS, Ruby on Rails (RoR), Ruby
Snapdocs, Inc.
AngularJS, Ruby on Rails (RoR), Ruby
Experience
Availability
Part-time
Preferred Environment
Jira, Git, RubyMine, OS X, Ruby on Rails (RoR), Amazon Web Services (AWS)
The most amazing...
...project I've worked on is a top 60 Y Combinator company for the mortgage industry, with a complicated architecture and sophisticated business processes.
Work Experience
Full-stack Software Engineer
2017 - 2019
Broker Buddha
- Led the development of a high-performance, reliable, and secure Rails-based back end.
- Participated actively in building and maintaining a SPA front end with dozens of pages full of complex business logic.
- Automated the deployment with Elastic Beanstalk and Terraform.
- Bootstrapped a new GraphQL API that allowed making a majority of server requests run in less than 0.2ms.
- Established E2E testing with Capybara, which reduced the number of bugs to almost zero.
- Contributed actively to setting up a CI/CD pipeline.
Technologies: AngularJS, Ruby on Rails (RoR), GraphQL, MongoDB, Angular, NgRx, Terraform, CircleCI, Docker
Software Developer
2015 - 2017
Azati Corporation
- Created the back-end for a mobile application and managed the complete project cycle.
- Worked on a marketplace for used car parts in Germany.
Technologies: Docker, AngularJS, Ruby on Rails (RoR), Ruby
Software Developer
2012 - 2015
Snapdocs, Inc.
- Built a massive project with sophisticated business logic used by thousands of enterprise users daily.
- Developed accounting functionality integrated with QuickBooks Online.
- Worked on a multi-tier architecture of the project.
- Implemented project billing.
Technologies: AngularJS, Ruby on Rails (RoR), Ruby
Software Developer
2013 - 2013
Altoros
- Built software for a home automation (powered by Z-Wave) hub based on Raspberry Pi.
- Created a JuJu charm for deploying Rails applications in collaboration with a team from Canonical.
- Worked on a web education platform for a Belgian university.
Technologies: Chef, Ruby on Rails (RoR), Ruby
Software Developer
2009 - 2012
Itibo
- Worked on a control panel for deploying and managing popular software stacks in AWS.
- Built an online tool for searching and analyzing genome sequence data.
- Created a plugin for Sublime Text with thousands of installations.
Technologies: Ruby on Rails (RoR), Ruby
Experience
Broker Buddha
Broker Buddha helps insurance brokers and agents win more business by moving the application and renewal process into an interactive, customer-friendly online experience.
I led the software development process and handled back- and front-end development and deployment automation.
I led the software development process and handled back- and front-end development and deployment automation.
SnapDocs
http://www.snapdocs.com/SnapDocs simplifies mortgages by moving the process online. I was the first developer here and for a long time the only one. To a certain point, I built every single piece of its functionality.
Some of the challenging things: billing, integration with Quickbooks, Google, Mixpanel and other APIs, responsive email layout, zero-downtime deployment, etc.
Technologies used include Ruby on Rails, a slice of the AWS stack, Opscode Chef, and AngularJS.
Some of the challenging things: billing, integration with Quickbooks, Google, Mixpanel and other APIs, responsive email layout, zero-downtime deployment, etc.
Technologies used include Ruby on Rails, a slice of the AWS stack, Opscode Chef, and AngularJS.
Social Media Link
Social Media Link (SML) is the leading advocacy activation company that amplifies social media conversation for brands. SML makes it easy for brands to activate impactful and trusted reviews and recommendations across social media, triggering action and leading consumers through the path to purchase.
Mercer Financial Wellness
Custom-designed user-friendly financial solutions to simplify people's life and give them personalized insights to make smart money moves today, for a brighter tomorrow.
FundRx
FundRx connects physicians with early stage healthcare companies in the fields they know best.
Beeper
A mobile application with a modern approach for receiving urgent, contextual messages on mobile devices. I came up with the idea and controlled the whole development process, personally working on the back end, developing integrations with Parse PUSH and Amazon SQS, and building the website.
Technologies used include Ruby on Rails, AngularJS, Docker, SQS, Parse, and MongoDB.
Technologies used include Ruby on Rails, AngularJS, Docker, SQS, Parse, and MongoDB.
nCube Home
nCube is a smart home system that lets tailor a money-saving solution to suit ones needs. I built a Ruby library to communicate to a Z-Wave devices and invented a network architecture two-way communication between nCube hubs and back-end servers.
Technologies used include Ruby on Rails, OpenVPN, and Z-Wave library.
Technologies used include Ruby on Rails, OpenVPN, and Z-Wave library.
SequenceBase
https://usgene.sequencebase.com/The SequenceBase Research Portal is a web-based access point for comprehensive patent sequence searching. I developed a scalable architecture for performing searches on a database of biological patents.
Technologies used include Ruby on Rails, RabbitMQ, Google Wallet, NCBI Blast, and Sphinx.
Technologies used include Ruby on Rails, RabbitMQ, Google Wallet, NCBI Blast, and Sphinx.
Skills
Languages
Ruby, SQL, GraphQL, CSS, HTML, JavaScript, SAML, Go
Frameworks
AngularJS, Ruby on Rails (RoR), Bootstrap, Capybara, Juju, Ember.js, Angular
Libraries/APIs
Mixpanel API, Twilio API, Stripe API, QuickBooks API, jQuery, HelloSign API, Google API, Backbone.js, Prawn, NgRx, NgRx/store
Tools
wkhtmltopdf, Capistrano, RSpec, RabbitMQ, Chef, Terraform, RubyMine, Git, Jira, Ansible, CircleCI
Platforms
AWS Elastic Beanstalk, Amazon Web Services (AWS), Linux, Docker, Mailgun, OS X
Storage
MySQL, PostgreSQL, Redis, MongoDB, CouchDB
Other
PDF, APIs, RESTful Web Services, HexaPDF, SAML-auth, Apache Cassandra, Workflow
Education
2008 - 2013
Bachelor's Degree in Computer Science
Yanka Kupala (Grodno State University) - Grodno, Belarus