IM
Ukraine
UTC+02:00 (Europe/Kiev)
Iaroslav M.
Senior RoR Engineer /React.js engineer
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£74,300£59,400/YEAR
20% discount on yearly basis
All rates are indicative, annual rate includes 20% discount
£5,600/MONTH
£37/HOUR

Expertise

Other technologies

Agile
CSS
Kubernetes
Git
HTML
Sidekiq

Portfolio Highlights

May `19 – May `19
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Sofie Blackstad, Advisor Stockholm Fintech Lab/ Advisor Nordea Bank

Hive Online – is the financial trust platform for small businesses based in Nordic countries. Since launching, Sofie Blakstad has been invited to the World Economic Forum, the G7 and G20 groups and World Bank/IMF Summit.

Lead Backend Engineer

Designed and developed core features; - Move project to microservices architecture; - Build and Maintained AWS environment using Kubernetes and Docker; - Proposed and developed feature;

Kubernetes
PostgreSQL
Ruby on Rails
RSpec
Docker
Jul `16 – Jun `17
11 months

Carlos Puig Sagi-Vela

Seller Nexus — Feedback Software & Email Automation Tool for Amazon Sellers

Lead Backend Engineer

Jan 2016 – June 2017Designed and developed core features (email system, multi-accounting); - Maintained AWS environment; - Proposed and developed feature and usability improvements;

AWS
PostgreSQL
Ruby on Rails
RSpec
Capybara
May `19 – Present
9 months

NEOINIT CORP (USA)

Project core information: Although two freestanding apps, WhosThis and Woices are largely similar from a technical standpoint, which is why we consider it one project. The core functionality of both apps is associated with the anonymous communication capabilities available for both Android and iOS platforms and managed from an admin web extension in case of Woices - the business-oriented version of the software.

Lead Backend

Full version released, ongoing technical support

Kubernetes
Ruby on Rails
Redis
CoreData
VIPER

About me

+5 years in Ruby on Rails development, participated on long-term fintech projects as Senior backend engineer on solid fintech products.

App/Blockchain Development agency #246

10-50
Kyiv/Ukraine
GMT+2
Core Expertise
AngularJS
Bitcoin
Java
JavaScript
Kotlin
Node.js
PHP
React.js
React Native
Ruby on Rails
Machine learning Engineer
Payment Gateway Integration
Swift
Ethereum
Solidity
Cryptocurrency
Smart Contracts
Blockchain
Industries
Business & Productivity, Logistics & Transportation, E-Commerce & Retail, Banking & Finance, Booking & Rent
We're using blockchain, mobile, web and machine learning for decentralization, process optimization and better service. Our team at 4ire Labs specializes in custom development on the most popular blockchains – Bitcoin, Ethereum, Hyperledger. The main goal of 4ire Labs is developing web, mobile, Ðapps for improving economies and make a transparent, reliable and secure system for governance and management. Providing such services: - Сustom development on popular blockchains - Smart Contracts Development & Audit - App Development - Consulting