Anton Kachan

• Collaborated with cross-functional teams to design innovative software solutions
• Developing Ruby-on-Rails backend
• Focused on B2B integrations and liaising with third-party services, collaborating extensively internally and externally. Led architecture design, task delegation, and ensured seamless integration across application domains.
• Worked on domain decoupling across multiple domains, meticulously tracking dependencies to enhance system flexibility.
• Substantially increased test coverage
• Optimized code performance for improved user experience and system efficiency.

Ruby on Rails, PostgreSQL, Redis, Sidekiq, TDD, DDD, SOLID, Rspec, Sentry, Datadog, SCRUM

• Worked with product managers, developers, quality assurance and customers to resolve technical issues.
• Delivered several epics as Team Leader
• Developing Ruby-on-Rails backend and React frontend
• Worked as production support (monitor system using Datadog, Sentry)
• Improved system performance by making proactive adjustments and resolving bugs.
• Designed and created engineering specifications.

Ruby on Rails, React, TypeScript, PostgreSQL, Redis, Sidekiq, Cypress, Rspec, Sentry, Datadog, CircleCI, SCRUM, Jira, gRPC, Amplitude, SOLID

Project: ROE (Retirement Outcome Evaluator)

The developed solution is a huge retirement calculator that helps companies to estimate how much saving they need to retire their employees.

• Reviewed and discussed project requirements and designed technology solutions that met or exceeded performance expectations.
• Developed full architecture of system from scratch
• Completed deep research into concurrent computing
• Accelerated speed of calculations hundreds of times
• Developed backend using Ruby on Rails and frontend using AngularJS and then Vue
• Configured project environments, databases, CI/CD
• Worked closely with Amazon Web Services (Lambda, RDS, RDS Proxy, Elasticache, EC2, S3, Cloudfront)

Ruby On Rails, Vue, PostgreSQL, Redis, Rspec, AWS, Bitbucket CI/CD, JWT, Angular, SOLID

• Worked with software development and testing team members to design and develop robust solutions to meet client requirements for functionality, scalability and performance.
• Installed and configured software applications and tested solutions for functionality.
• Reviewed project specifications and designed technology solutions that met or exceeded performance expectations.
• Coordinated with other engineers to evaluate and improve software and hardware interfaces.

Projects:

1. Hey wine (The delivered application is a wine shop and online sommelier)
- Developing the Ruby-on-Rails API for the mobile application from scratch
- Coding the front-end UI for the webpage

2. Statement (The developed solution is an application for generating PDF documents)
- Developing Ruby-on-Rails backend and writing specifications (from scratch)
- Coding the front-end UI using AngularJS

3. Molly (The system consists of several modules for analyzing and managing business)
- Advising the client on selecting which technology stack to be used
- Developing the entire Ruby on Rails backend and writing specs (from scratch)
- Coding the frontend UI while receiving feedback and guidance from the client's Lead Designer

4. Hauz (The developed solution is an internet shop for household goods)
- Developing the Ruby-on-Rails backend and writing tests
- Coding the front-end UI

Skills: Ruby on Rails, MySQL, Ruby Grape, Rails API, JWT, HTML, CSS, OOP, Sidekiq, Redis, CoffeeScript, Javascript