Summary

Expertise

Project Highlights

Agency

OB

English:

Upper Intermediate

Oleg B.

vetted by Youteam

Vetted by YouTeam

Ukraine

UTC +02:00

Ukraine/Kyiv

English:

Upper Intermediate

My expertise extends to several programming languages and frameworks, with a particular focus on building robust and scalable back-end systems.

As an experienced back-end engineer, I can cover a wide range of development tasks. My expertise extends to several programming languages and frameworks, with a particular focus on building robust and scalable back-end systems. I have experience working not only with Ruby on Rails but also with PORO, Hanami, Sinatra & Trailblazer. My experience in designing and implementing RESTful APIs, working with databases, and integrating third-party systems has equipped me with the necessary knowledge and skills to ensure seamless integration of back-end and front-end systems. On my current project, I am working in the fintech domain. I mainly work as a back-end developer. My duties include calls with stakeholders every day. On the project, I am working not only with the new features but also with the legacy part of the application to profile & speed up execution. Also, I have been working with the database layer directly: on optimizing SQL queries, and working with materialized views and foreign tables. With a proven track record of designing and developing complex web applications, I am eager to apply my skills and experience to develop robust and scalable backend systems.

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Check if Oleg is available

Expertise

Years of commercial development experience

5 years of experience

Core technologies

Ruby on Rails 5 years
PostgreSQL 4 years
JavaScript 4 years
RSpec 3 years
Sinatra 2 years

Other technologies

PostgreSQL
Ruby
Sinatra
Twilio
Redis
RSpec
RabbitMQ
RESTful API
Sidekiq
WebSockets
Docker
GitLab

Project Highlights

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Senior Ruby Back-End Engineer

Data exchange platform for BCGateways

Apr `22 - Present

3 years

BCGateways (Iress Blockchain now) is a blockchain-enabled fund data distribution platform that lowers the risks, costs, and complexities associated with the sharing of data. It provides SaaS and hybrid blockchain solutions that simplify data exchange and cover different areas, from funds pricing data exchange to Design and Delivery Obligation.

Responsibilities & achievements

• Communicated with team & stakeholders. • Created initial PoC for the web version from scratch. • Configured all CI/CD pipelines and deployment processes. • Worked with GraphQL API to build and refine features. • Worked with third-party APIs like VGS & Onfido to securely store customers data. • Created admin dashboard for moderators/admins. • Conducted bug fixing/debugging.

AWS
PostgreSQL
Ruby
Ruby on Rails
Twilio
RSpec
RabbitMQ
Docker
Ethereum
Hyperledger
GitLab
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Senior Ruby Back-End Engineer

JoinReflect

May `21 - Mar `22

10 months

Reflect connects clients with independent therapists who partner with them, and provide tools such as scheduling/billing/feedback to simplify and support the process.

Responsibilities & achievements

• Communicated with team. • Investigated and implemented new features and refined features. • Created dashboards for members and therapists. • Worked with third-party APIs like Mailchimp. • Conducted bug fixing/debugging.

AWS
CSS
JavaScript
MailChimp
PostgreSQL
Ruby on Rails
Sinatra
Twilio
HTML
RSpec
WebSockets

Agency

Development agency #31

400+

GMT-11

Remote

Want to hire this engineer?

Check if Oleg is available