Oleg Kleyman
Location 🇺🇸 United States
On Platform since 2024-09-12
Statistics 0 0
Oleg Kleyman
- About
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Inspirato, Denver, CO - Remote 05/2021-08/2024
Senior Software Engineer
• Worked on domain driven macro services to facilitate the member booking experience. Using .NET 6-8, various Azure services; Cosmos DB, SQL, Azure Functions/Orchestrations.
• Integrated with the Zuora payment processor to process payments and refunds leveraging the Zuora REST API using .NET and various Azure services. Using C# .NET 4.7-8
• Created and contributed to Azure DevOps pipelines to facilitate continuous integration and continuous delivery of applications at all stages from pull request, test environment, QA environment, and finally production. Using Azure DevOps, YAML, BICEP / terraform.
• Worked on legacy applications from a monolith .NET 4.7 web application to console jobs running as windows scheduled tasks using .NET 6-8, React. AngularJs, SQL, internal REST services, NServiceBus, EntityFramework, NHibernate, Zuora SOAP and REST APIs, Escapia API.
• Maintained a customer facing React front end by creating new components and updating existing ones.
• The vast majority of applications built were highly covered with unit and integration tests.
Katz Media, New York, NY 02/2020-05/2021
Senior Software Engineer
• Worked on a service bus transport for front end websites and other long running processes using .NET Core, NServicebus, AWS SQS, SNS, DynamoDB, and S3.
• Worked on maintaining and furthering features of many applications ranging from legacy to modern. Technologies included .NET Core 3.0, 3.1 and Frameworks 2.0-4.7, .NET MVC and WebForms, Console and WinForms, SQL, Classic ASP, and VB6
• Supported applications by communicating with internal users and fixing application bugs or runtime issues such as config or IIS configuration.
• Migrated applications from on prem servers to AWS EC2 Windows Server instances.
Axispoint, New York, NY - Contract 10/2019-12/2019
Senior Developer
• Worked on web service integrating with several third party and internal providers to route data to and from other providers to calculate risk and acquire investors for them. Utilizing .NET framework 4.5, C#, and MVC.
• Worked on a console application to finalize loans that investors were successfully acquired by notifying third party services utilizing .NET framework 4.5 and C#.
• Created SQL database backend for the project.
Allied World, New York, NY - Contract 7/2019-9/2019
Backend Developer
• Created a time triggered Azure function for restructuring XML data into a database utilizing .NET Core, C#, entity framework.
• Created web services to serve a client side web application utilizing .NET Core, WebAPI, C#, and entity framework.
• Implemented integration tests and near 100% unit test code coverage utilizing the TDD and outside in methodology.
Viventium, New York, NY 5/2018-5/2019
Backend Developer
• Created and maintained a host of customer facing services for customers to interact and manipulate their data utilizing C#, WCF, EntityFramework, and WebAPI.
• Maintained and added features to third party integrations for business continuity using C#, WCF, WebAPI, GetHired, and TimeClock Plus.
• Maintained and added to in-house frameworks utilized for database operations and general programming for developer productivity utilizing C# and entity framework.
• Deployed to staging environment for testing by the QA team.
• Presented an introduction to integration and unit testing.
Springer Nature, New York, NY 1/2010-4/2018
Senior Developer
• Collaborate in a team of three-six in an Agile environment spanning the US and UK
• Develop features autonomously and through pair programming
• Create website for configuring the general ledger application using MongoDB, MongoDB C# driver, MVC, and bootstrap.
• Ported XML file containing general ledger data to a flattened MongoDB collection.
• Codified coding standards for new development projects.
• Migrated CI server from a VM to a more efficient physical machine.
• Implemented continuous deployment of web projects and Nuget packages.
• Created testing library for integration testing.
• Created and maintained various data migration tools for a large scale data migration project to move subscription and fulfillment data.
• Created various REST services to retrieve and aggregate data from various sources which include SQL databases, web services, and native environments.
• Maintained and modified legacy ecommerce and fulfillment applications.
• Added functionality to existing e-commerce project to support automatic payments using the WorldPay payment gateway API.
• Added functionality to support the vertex tax engine to process global tax rules in existing ecommerce and financial applications.
• Refactored legacy website used for journal sales management to a newer platform using MVVM and MVC WebAPI
• Upgraded all team projects to .NET 4 from 3.5
• Integrate the majority of applications to work with Think Subscription Enterprise, a fulfillment application heavily used by the company, through the web API with exposed REST and SOAP endpoints
• Maintain, develop, and heavily re-factor features for the Sales Ledger and General Ledger including porting them from a legacy DTS package to a modern .NET application which process over 250 million pounds a year in revenue
• Develop a suite of e-commerce XML REST services to handle customer entitlements, payments, orders, personal details, and confirmation e-mails
• Develop for numerous windows services that handle customer fulfillment orders not processed through the customer facing e-commerce website
• Utilize the test driven development methodology through unit testing with Nunit and integration testing with Specflow for the vast majority of development
• Handle bugs, live issues, deployment to test environments, and ensure a seamless continuous integration process for the team through a rotating build master role
• Lead scrums, organize sprint demos, and liaise between the development team, product owner, and stakeholders through a rotating scrum master role
CHARTER BROKERAGE, New York, NY 5/2008-11/2009
Developer and Technician
• Worked mostly autonomously under the IT Manager on applications for company needs
• Automated excel and word documents using VBA
• Created websites and web services using ASP.NET, C#, VB.NET
• Exported data using Spreadsheetgear through a ASMX web service
• Created several WinForms applications for data management and retrieval
• Created SSRS reports and utilized the SSRS web service to export reports to PDF
• Assisted users with troubleshooting computer issues and virus removal
• Repaired malfunctioning workstations, printers, and assisted with server deployment
EDUCATION:
New York City College of Technology 5/2009
Bachelor of Technology degree specializing in software development
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