Вадим

Vadym Korsakov
.NET Developer
 [open contact info](look above in the "contact info" section)  [open contact info](look above in the "contact info" section)  Kyiv, Ukraine

Education
Donetsk National Technical Master's degree in Software Engineering
University, Donetsk
1991 - 1996 Gained advanced knowledge and skills in software development, computing
systems, and engineering principles, with a focus on designing and implementing
high-quality software solutions.

Certi icates
2019 K2 Five: Core - K2 training course
2016 M20487 DEVELOPING WINDOWS AZURE AND WEB SERVICES - Education center
«Networking Technologies»
2014 Patterns of Design - CyberBionic Systematics

Professional Skills
C# .Net Core EF Core
ADO.Net SQL RabbitMQ
Redis Docker REST API
OOP Git .Net Framework

Pro ile
I'm a Senior Developer with 28 years of experience in software engineering and backend development. Experienced in
leading development teams and mentoring junior developers, I'm great at taking innovative ideas and bringing them to
life through fully implemented solutions. I’m committed to writing code that’s not just effective but also clean and
maintainable. I’m always looking for ways to improve and stay on top of the latest industry trends.

Work experience
Globaldev Group, Kyiv Developed and deployed robust backend systems for managing payment
Senior backend developer work lows and facilitating loan issuance in a dynamic intech environment.
Additionally, led the development team by managing project timelines, mentoring
09/2024 - present
team members, conducting code reviews, and ensuring the delivery of high-quality,
scalable solutions.

Technologies: C#, Postgres, Docker, .Net Core, EF Core, Re it, RabbitMQ, AWS S3,
Firebase, Design Patterns, Agile, Scrum, Web API, RESTful API, pgAdmin, Swagger,
Rider, Postman.
 Work experience
Guru Software, Kyiv Developed and maintained the backend infrastructure for an e-commerce
Senior backend developer website, ensuring high performance and scalability.
Designed and implemented a customer loyalty system to enhance user
08/2022 - 09/2024
engagement and retention.
Successfully integrated with multiple payment gateways, including JSS, PayPal,
Lunu, and Viva Wallet, ensuring secure and seamless transactions.
Conducted comprehensive code refactoring to improve code quality, reduce
technical debt, and enhance system maintainability.
Optimized complex database queries, resulting in faster response times and
improved overall system ef iciency.
Collaborated with frontend developers to ensure seamless integration and a
consistent user experience across the platform.

Technologies: C#, SQL Azure, MSSQL, Docker, .Net Core, EF Core, Redis, RabbitMQ,
Azure Storage, Azure DevOps, Design Patterns, Agile, Scrum, Web API, RESTful
API, Swagger, Rider, SQL Server Management Studio, Azure Data Studio, Postman.

Payment systems: JSS, PayPal, Lunu, Viva Wallet.
FOZZY GROUP, Kyiv Developed and maintained the "Loyalty" system.
Senior backend developer Developed backend for a mobile application.
Developed backend for the bank's mobile application.
06/2012 - 08/2022
Created microservices for integration with third-party services.
Developed a high-load service for generating and distributing noti ications.
Developed a service for decoding QR codes.
Designed database architecture.
Conducted code refactoring.
Optimized database queries.

Technologies: C#, MSSQL, ADO.Net, .Net Core, .NET Framework, Docker, RabbitMQ,
Web API, TeamCity, Git, Design Patterns, Agile, Scrum, RESTful API, Swagger, Visual
Studio, SQL Server Management Studio, Postman.
Prominvestbank, Mariupol Developed software solutions for various bank departments.
Senior software engineer, head of Implemented a reporting system based on the "Retail Banking Services" data
the sector of the computer complex.
technology department Created a client-server application for online plastic card orders.
Developed a contract management system based on the "Retail Banking
04/1996 - 06/2012
Services" data complex.
Developed software to automate accounting processes, providing enhanced
analysis and management capabilities.
Maintained and supported money transfer systems ("MoneyGram/Contact")
including administration and technical support.
Provided software con iguration and support for the ATM network.

Technologies: C#, MSSQL, C++ Builder, FoxPro 2.6, SQL Sybase AnyWhere.