Serhii Reznychenko - .NET Developer

Q: Where is Serhii based?

Serhii is based in Odesa, Ukraine .

Q: What languages does Serhii speak?

Serhii speaks the following languages: Russian (Native), English (Advanced) .

Q: How many years of experience does Serhii have?

Serhii has at least 20 years of experience. During this time, Serhii has worked in at least 2 different roles and for 4 different companies . The average length of individual experience is 5 years and 1 month . Note that Serhii may not have shared all experience and actually has more experience.

Q: What is Serhii's latest experience?

Serhii's most recent position is .NET Developer at SoftServe .

Q: What companies has Serhii worked for in recent years?

In recent years, Serhii has worked for SoftServe .

Q: Which industries is Serhii most experienced in?

Serhii is most experienced in industries like Government and Public Administration , Information Technology (IT) , and Banking and Finance . Serhii also has some experience in Retail .

Q: Which business areas is Serhii most experienced in?

Serhii is most experienced in business areas like Information Technology (IT) , Accounting , and Finance . Serhii also has some experience in Product Development .

Q: Which industries has Serhii worked in recently?

Serhii has recently worked in industries like Information Technology (IT) .

Q: Which business areas has Serhii worked in recently?

Serhii has recently worked in business areas like Information Technology (IT) and Product Development .

Recommended expert

Odesa, Ukraine

Experience

Feb 2021 - Oct 2025

4 years 9 months

Ukraine

.NET Developer

SoftServe

Development and supporting of ASP.NET Core WebAPI services
Database development, database queries optimization
Creation of metrics graphs in Grafana
Working with stakeholders, setting tasks, writing documentation
Technologies: C#, T-SQL, LINQ, JavaScript/TypeScript, ASP.NET Core (MVC/WebAPI), RESTful and WCF services, Entity Framework Core, unit and integration testing, Microsoft SQL Server, PostgreSQL, RabbitMQ, AWS (RDS, S3, DynamoDB, Redis, CloudWatch), Grafana

Oct 2020 - Feb 2021

5 months

Kyiv, Ukraine

Software Developer

TEMABIT Software Development

Development of the server part of a mobile application for a large hypermarket chain
Development of cloud solutions based on AWS CDK
Development and optimization of microservices
Development and integration of push notification services for mobile applications (Android/Huawei)
Development and maintenance of databases
Writing technical documentation
Technologies: C#, T-SQL, LINQ, JavaScript, ASP.NET Core (MVC/WebAPI), RESTful services, Entity Framework Core, unit and integration testing, Microsoft SQL Server, RabbitMQ, AWS CDK

Aug 2015 - Aug 2020

5 years 1 month

Odesa, Ukraine

Software Developer

Syndikat-Plus, Gylcov and Company

Design, improvement and support of company software
Database administration
Analysis, design, development and implementation of an accounting system for main company activities (lending, trade, inventory accounting)
Technologies: C#, T-SQL, LINQ, WinForms, ASP.NET Core WebAPI, ADO.NET, Microsoft SQL Server

Apr 2005 - Aug 2015

10 years 5 months

Odesa, Ukraine

Software Developer

Foreign Intelligence Service of Ukraine

Design, support and optimization of company systems
Database development, administration and support
Design, development and maintenance of database systems; diagnosing and troubleshooting applications and database-related issues
Development and implementation of a system for linguistic analysis of textual information
Technologies: C#, T-SQL, LINQ, WinForms, Windows Services, Lucene.NET, ADO.NET, Microsoft SQL Server

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Government and Administration (10.5 years), Information Technology (5 years), Banking and Finance (5 years), and Retail (0.5 years).

Government and Administration

Information Technology

Banking and Finance

Retail

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (20.5 years), Accounting (5 years), Finance (5 years), and Product Development (4.5 years).

Information Technology

Accounting

Finance

Product Development

Summary

More than 8 years of practical experience in: designing, developing, analyzing and implementing desktop applications, web services; designing, testing and administration database.

Skills

Experience In Languages: C#, T-sql, Linq, Js
Knowledge Of Application Technologies: Asp.net Core, Webapi, Ef Core, Aws Cdk
Ide: Visual Studio 2022, Vs Code
Highly Experienced With Mssql Server
Familiar With Aws/azure Cloud Infrastructure
Good Communication, Analytical And Interpersonal Skills; Ability To Perform As Part Of A Team As Well As An Individual Contributor.
Motivated, Positive, Disciplined, Attentive To Details, Responsible, Hard Worker, Team Player.

Languages

Russian

Native

English

Advanced

Education

Sep 2001 - Jun 2007

Kharkov University of Air Force

Specialist, Systems Analyst · Systems Analyst · Kharkiv, Ukraine

Sep 1998 - Jun 2003

Kharkov Military University

Specialist, Engineer of Computer Systems, Automation and Control · Engineer of Computer Systems, Automation and Control · Kharkiv, Ukraine

Certifications & licenses

Microsoft Certified: Azure Fundamentals

AWS Certified Cloud Practitioner

Profile

Created

December 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Serhii based?

Serhii is based in Odesa, Ukraine.

What languages does Serhii speak?

Serhii speaks the following languages: Russian (Native), English (Advanced).

How many years of experience does Serhii have?

Serhii has at least 20 years of experience. During this time, Serhii has worked in at least 2 different roles and for 4 different companies. The average length of individual experience is 5 years and 1 month. Note that Serhii may not have shared all experience and actually has more experience.

What roles would Serhii be best suited for?

Based on recent experience, Serhii would be well-suited for roles such as: .NET Developer, Software Developer.

What is Serhii's latest experience?

Serhii's most recent position is .NET Developer at SoftServe.

What companies has Serhii worked for in recent years?

In recent years, Serhii has worked for SoftServe.

Which industries is Serhii most experienced in?

Serhii is most experienced in industries like Government and Public Administration, Information Technology (IT), and Banking and Finance. Serhii also has some experience in Retail.

Which business areas is Serhii most experienced in?

Serhii is most experienced in business areas like Information Technology (IT), Accounting, and Finance. Serhii also has some experience in Product Development.

Which industries has Serhii worked in recently?

Serhii has recently worked in industries like Information Technology (IT).

Which business areas has Serhii worked in recently?

Serhii has recently worked in business areas like Information Technology (IT) and Product Development.

What is Serhii's education?

Serhii attended Kharkov University of Air Force for Systems Analyst.

Does Serhii have any certificates?

Serhii has 2 certificates. These include: Microsoft Certified: Azure Fundamentals and AWS Certified Cloud Practitioner.

What is the availability of Serhii?

Serhii is immediately available for suitable projects.

What is the rate of Serhii?

Serhii's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.