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Roman – ASP.NET, .NET, React, experts in Lemon.io

Roman

From Ukraine (GMT+3)

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Back-end Web DeveloperSenior
Front-end Web DeveloperMiddle-to-senior
Hire developer
10 years of commercial experience
Analytics
Banking
Consulting services
Data analytics
Fintech
Marketing
Simulation software
Lemon.io stats
1
projects done
608
hours worked
Open
to new offers

Roman – ASP.NET, .NET, React

Software engineer with over 5 years of experience developing robust code for high-volume businesses. Proficiency in solving hard tasks, great communication skills.

Main technologies
ASP.NET
10 years
.NET
10 years
React
4 years
Additional skills
Angular
Vue.js
Python
Node.js
Angular JS
GCP
SQL Server
WCF
ASP.NET CORE
MongoDB
Firestore
Microsoft Azure
Docker
Kafka
Jenkins
Datadog
AWS
Rewards and achievements
Tech interviewer
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior Full Stack Software Engineer
Feb 2022 - Mar 20242 years 1 month
Project Overview

JustAnswer is an online expert question-and-answer platform that connects visitors with verified experts in different categories. JustAnswer offers a one-on-one online conversation with a verified professional to get the peace of mind you need. It helps customers save time and money on doctor’s visits, trips to the mechanic, tech support, and more.

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Responsibilities:
  • designed and developed an automated bonus system for the platform
  • developed ChatGPT plugin
  • designed and developed solution for quality assessment using ChatGPT models, Whisper, and Twillio
  • developed microservices with .NET 8
  • developed SPA using React
  • developed features for Android, IOS applications using React Native
  • worked with Azure, RabbitMQ, Docker, Kubernetes, LightStreamer
Project Tech stack:
ASP.NET
SQL Server
RabbitMQ
.NET
Azure DevOps
React
React Native
Docker
Kubernetes
Python
LLM
Senior Back End Engineer
Jul 2021 - Feb 20227 months
Project Overview

The platform offers social media marketing, advertising, analytics, data visualization, and brand management services.

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Responsibilities:
  • designed and developed a system for data aggregation from about 15 different sources using Azure Functions
  • designed and implemented ETL solution for multi-tenant application using Azure Data Factory
  • designed and implemented solution for data processing and transforming using Azure Databricks
  • worked on multi-tenant application with ASP.NET Core
Project Tech stack:
Azure DevOps
Azure Functions
Azure SQL
Azure Service Bus
Google Ads
Google Analytics
Instagram API
Facebook SDK
Twitter API
ASP.NET CORE
Senior Back End Software Engineer
May 2020 - Sep 20211 year 3 months
Project Overview

A Canadian online brokerage firm and wealth management firm. It is Canada's largest discount broker. It also offers banking services such as mortgages. With this new product, customers can get a mortgage more quickly and easily by bringing the mortgage application and approval process online.

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Responsibilities:
  • developed REST APIs using Node.js, ASP.NET Core
  • developed POS solution for Mortgage Product
  • designed and developed a solution for a Card Management System
  • worked with Jenkins, Datadog, Google Cloud Platform, Docker, Kubernetes
Project Tech stack:
ASP.NET CORE
SQL Server
Node.js
Docker
Kubernetes
MongoDB
GCP
Middle Full Stack Software Engineer
Jul 2019 - May 202010 months
Project Overview

A British challenger bank and prepaid card operator providing business bank accounts and contactless Mastercard cards in the UK. Business banking products are tailored for microbusinesses, self-employed, and start-ups.

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Responsibilities:
  • implemented 2FA with Entrust IdentityGuard
  • implemented complex log system with ELK stack
  • designed Deep Linking solution
  • worked on REST APIs, MVC with ASP.NET, ASP.NET Core
  • worked on SPA application using KnockoutJS, React
  • worked with Jenkins, Octopus, CCNet
Project Tech stack:
React
Knockout.js
ASP.NET
ASP.NET CORE
ElasticSearch
Kibana
Logstash
Jenkins
Middle Full Stack Software Engineer
Dec 2017 - Aug 20191 year 8 months
Project Overview

Internal Software in oil & gas domain. The main goal was analysing different scenarios for optimal resources usage.

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Responsibilities:
  • developed an efficient tool for reports with complex composite structures generation, projected reports in Excel
  • developed SPA using Angular and Kendo UI
  • migrated single-tenant application to multi-tenant
  • migrated .NET Framework to .NET Core
  • migrated AngularJs to Angular
  • performed communication with management and end users
  • managed the day-to-day activities of the team
  • developed and implemented a timeline to achieve targets
Project Tech stack:
ASP.NET
ASP.NET CORE
SQL Server
Angular JS
Angular

Education

2018
Faculty of Applied Mathematics and Informatics
Master's
2018
Faculty of Applied Mathematics and Informatics
Master's

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