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  1. Freelancers

Oleksandr Holomozyi

Offer Oleksandr work on your next project.

Ukraine Dnepr, Ukraine
7 months 14 days back
Available for hire available for hire
age 31 years
on the service 11 years
  • ruby
  • jquery
  • erlang
  • lodash
  • rspec
  • babel
  • elixir
  • phoenix
  • webpack 3
  • nova
  • javascript
  • TypeScript
  • Ruby on Rails
  • ExUnit
  • Ecto
Freelancer Oleksandr H. — Ukraine, Dnepr. Core skill — Web Programming, Javascript and Typescript

Rating

Successful projects
No data
Average rating
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Rating
112
Web Programming
4252 place out of 6431
Javascript and Typescript
2161 place out of 3455

Language proficiency level

Українська Українська: fluent
Русский Русский: advanced
Polski Polski: upper-intermediate
English English: pre-intermediate

Skills and abilities

Programming

Services

Administration

Portfolio


  • Elixir/Erlang/Ruby/TypeScript Backend Developer

    Web Programming
    Senior Back-End developer with over 7 years of experience in creating distributed systems with high load. Specializes in performance optimization, system integration, and scalable backend solutions.

    Successfully scaled platforms for video streaming, e-commerce, electric vehicle charging management systems, and landing page builders to serve tens of thousands of users.

    … Comprehensive expertise in SDLC, including requirements analysis, system design, decomposition, development, testing, deployment, and support.

    Main skills:
    √ Languages & Frameworks: Elixir, Erlang, Phoenix, Ecto, Ruby, Ruby on Rails, PHP, TypeScript, JavaScript, React
    √ Databases: PostgreSQL, MySQL, Cassandra, RedShift
    √ Infrastructure: AWS, Kubernetes, Docker, CI/CD
    √ Messaging systems and APIs: RabbitMQ, Redis, GraphQL, gRPC, Protobuf
    √ Monitoring and logging: Prometheus, Loki, Grafana, Helm Charts