Andriy Mazur

858-***-****

ad1id0@r.postjobfree.com

https://www.linkedin.com/in/andriymazur

PROFESSIONAL SUMMARY

As a Senior Software Engineer, I have a proven track record of successfully developing new projects and extending existing solutions. Solid experience with building enterprise-level solutions - stable, scalable, and maintainable. Experienced with an Agile Development Process, including all Solution Development Life Cycle aspects. Solid knowledge of C# .NET, Azure, AWS, Angular, MS SQL, Git, Unit Testing, CI\CD. Effective communicator with team and product owners in analyzing requirements and developing solutions. Excellent database skills, including SQL and database maintenance, troubleshooting, and optimization.

Languages: C# .NET Core, MS SQL Server, JavaScript, Typescript, Angular, HTML, CSS.

Methodology: .NET, ASP.NET Core, MVC, Azure, AWS, Moq, Entity Framework, NUnit, Multithreading, and Asynchronous programming.

Software: Git, GitLab, GitHub, AWS, Azure DevOps, RabbitMQ, Octopus, TeamCity, Harness.

PROFESSIONAL EXPERIENCE

Experian -- Houston, TX

Senior Software Engineer

04/2022 – 10/2023

As part of a team, designed and implemented multiple microservices for Experian BillFixer – a solution specialized in negotiating with various service providers, such as cable and internet companies, cell phone carriers, and insurance providers, in lowering client’s monthly bills while maintaining and improving their services. This involved analyzing billing statements and identifying areas for potential savings to secure favorable terms.

I was involved with the Core Team, where a major architectural decision were made. Designed and implemented all tiers of the solution backend part: Database design, Data Access Layer, Authentication/Authorization, microservices structure, defined Unit/Integration Testing requirements, CI/CD pipelines, and Delivery. I used industry best practices and design patterns to build a solid, stable, scalable, and maintainable Solution.

Duties:

Technical architecture and design based on business requirements.

C# .NET Core Developer.

Code Review, Tech Leadership, Deployment, and Production Support.

Technical Environment:

C# .NET Core, Microservices, REST API, Multithreading, Asynchronous programming.

AWS - API Gateway, Lambda, Fargate, S3, DynamoDB, SNS, SQS, CodeBuild.

Git, NUnit, xUnit, Moq, MS Build.

GitLab, Harness Deployment, Splunk, DataDog.

LPL Financial -- San Diego, CA

Senior Software Engineer

06/2021 – 04/2022

I have worked in two teams developing and refactoring existing .NET Core microservices, performance improvement, bug fixing, applying thread-safe fixes, performance testing, database development (stored procedures, view, scripts, optimizing indexes), etc. I have also worked on converting existing AngularJS applications to the newest Angular version 12.

Together with the second team, working on POC of fully cloud-based new software architecture based on AWS Lambda, Amazon API Gateway, Message bus using SNS and SQS, working with DynamoDB, CI/CD support, and many other features.

Duties:

C# .NET developer, Full stack, ASP.NET Core, Typescript, Angular, Microservices, Docker, REST API, MS SQL (Stored Procedures, Scripts, Optimization, and Performance improvement)

Technical Environment:

C# .NET (Standard and Core), ASP.NET Core, Multithreading, Asynchronous programming, AngularJS, and Angular 12.

MS SQL Server, Git, GitHub, GitLab, TeamCity, Octopus, Splunk.

Entity Framework, NUnit, xUnit, Moq, MS Build.

AWS: Lambda, API Gateway, DynamoDB, SNS, SQS, Deployment.

CoStar Group -- San Diego, CA

Senior Software Engineer

04/2019 – 06/2021

Worked in Analytic Report Team: developing .NET Core services to collect and aggregate data from various sources and create web-based and PDF reports. Because of the high number of incoming requests, the services use multi-tier execution, load balancing, caching, and other performance improvement patterns.

Because of legacy monolith solution architecture, one of my responsibilities is to create and implement .NET Core microservices and move parts of monolith functionality to the microservices.

I am also taking the role of Scrum Master: sprint planning, health check, and other related duties.

Duties:

Technical architecture and design based on business requirements.

C# .NET developer, Backend, SQL, microservice, Docker, REST API.

Scrum master.

Technical Environment:

C# .NET (Standard and Core), ASP .NET, MVC, Multithreading, Asynchronous programming.

MS SQL Server, TFS, Azure, Git, AWS.

Entity Framework, NUnit, Moq, MS Build.

American Specialty Health -- San Diego, CA

Senior Software Engineer

01/2017 –04/2019

Developed solutions for corporate needs: internal and external sites (.NET, ASP, MVC, Angular), web services (REST API, RabbitMQ), tools, and reporting (SSRS). High-loaded, multithreading, asynchronous microservice.

Duties:

Technical architecture and design based on business requirements.

C# .NET developer, Frontend, Backend, REST API, Azure, RabbitMQ.

Technical Environment:

C# .NET, ASP .NET, MVC, JavaScript, HTML5, CSS3, Angular.

MS SQL Server, TFS, Git, VSTS; Azure.

Entity Framework, Service Stack, RabbitMQ, SSRS.

NUnit, Moq, jQuery, Bootstrap, MS Build.

Expon -- Kyiv, Ukraine

Senior Software Developer

04/2014 – 11/2016

Project - Wonga V3: Provides real-time services for risk analysis of online short-term loan management system applications. Wonga helps people manage their short-term cash flow in South Africa, Canada, Poland, and Spain. The system reinvented short-term, unsecured loans by allowing applicants to choose how much cash they want to borrow and then showing a precise price based on the time the money is needed.

Duties:

C# .NET developer- Front End, Back End, REST API, Microsoft BizTalk Server, XSLT.

Technical Environment:

C# .NET, ASP .NET, MVC, Azure, JavaScript, HTML5, CSS3, MS SSRS.

MS SQL Server 2014, Octopus Deploy, TFS, Git, Jira,

Entity Framework, Selenium, NUnit, Moq, Angular, jQuery, Bootstrap, Ember.js.

PREVIOUS EXPERIENCE

Astound-Commerce -- Hamburg, Germany.

Senior Software Developer

08/2007–04/2014

Editec Ltd – Paris, France

Software Engineer

12/1999 – 08/2007

EDUCATION

Master’s Degree in Computer Science – Taras Shevchenko National University of Kyiv (1993 - 1999)

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