Олександр

Tkachenko, Oleksandr
Role: Software Developer
Specialization: C#
Location: Kyiv

SUMMARY
My objective is to secure a long-term C# developer position where I can collaborate with fellow developers
and team members to deliver high-quality software solutions that contribute to enhanced customer
satisfaction. I am passionate about continuously improving my engineering skills by working on challenging
and intriguing projects. I am looking for an opportunity where I can grow professionally, apply and expand
my skills on a daily basis, and make a meaningful impact within the team and organization.

Experience in IT
4 years

SKILLS
Tools and Technologies
C#, ASP.NET Core, Entity Framework (EF Core), Dapper, Microsoft Azure Functions, Azure Service
Bus, Microsoft SQL Server, Serilog, Application Insights, Git, Web API, HTML, JSON, Microsoft
Azure development, Microsoft Azure Storage, Microsoft Teams, Microsoft Visual Studio, Postman,
SQL, Swagger, XML, Azure DevOps, Cascading Style Sheets (CSS), REST (Representational state
transfer), API testing in Postman, Test case execution (manually) - functional/solution/regression
testing, XML Schema, Podman

Analytical Skills and Methodologies
Unit Testing, Mobile Testing, Smoke Testing, Integration tests

WORK EXPERIENCE
Luxoft
Sept 2023 – Present, C# Developer
ORES (Power grid operators and services) manages the electricity and gas distribution networks in over
75% of the communes in Wallonia.

Customer: ORES
Responsibilities:

Developed backend services using C# / .NET following Clean Architecture and SOLID principles.
Designed and maintained RESTful APIs with ASP.NET Core, focusing on scalability,
performance, and reliability.
Implemented asynchronous and event-driven processing using Azure Functions (Timer, Blob,
Queue triggers).
Built message-based communication between services using Azure Service Bus (queues /
topics).
Designed serverless workflows for background processing and data pipelines.
Monitored and troubleshooted production systems using Azure Application Insights (logs,
metrics, traces).
Investigated performance issues and improved system stability and reliability . Interacted with
Designed and optimized database interactions using SQL Server, Entity Framework Core, and
Dapper.
Improved query performance using indexing, query tuning, and stored procedures.
Implemented middleware, custom event handling, and background processing logic.
Integrated external systems via REST APIs, JSON/XML serialization, and SFTP (SSH.NET).
Applied structured logging using Serilog and ensured observability across services.
Developed integration tests using BDD (Gherkin / Reqnroll) to validate end-to-end business
scenarios and ensure correctness of distributed workflows.
Participated in code reviews, technical discussions, and feature design within Agile team.
Focused on clean code, error handling, and production stability in distributed environment. 1
 knowledge across the team.
Technology and Skills:
ASP.NET Core, Azure devops board, C#, Entity Framework (EF Core), Git, Microsoft Azure
development, Microsoft Azure Functions, Microsoft Azure Storage, Microsoft SQL Server, Microsoft
Teams, Microsoft Visual Studio, REST (Representational state transfer), Service Bus, SQL, Swagger,
Unit Testing, XML

May 2023 – Aug 2023, C# Developer
SKF Group is a Swedish multinational company specializing in the manufacturing of bearings and other
products for industrial and transportation applications.
Customer: SKF Group
Responsibilities:

Writing unit tests (Arrange-Act-Assert / NUnit / FakeItEasy)
Performed bug fixes, addressing software issues through debugging.
Working with JSON and XML data formats
Database Interaction:
Executed SQL queries and utilized Entity Framework for database operations.
Contributed to schema design and optimized queries for data retrieval.
Involved in developing stored procedures and supporting data migration tasks.
Work closely with cross-functional teams to diagnose and resolve intricate issues, fostering a culture
of shared knowledge and continual improvement.
Technology and Skills:
Azure devops board, Entity Framework (EF Core), Git, Microsoft SQL Server, Microsoft Teams,
Microsoft Visual Studio, Postman, REST (Representational state transfer), SQL, Swagger, Unit
Testing, XML

Zakaz.ua
Sept 2021 – May 2023, QA Engineer
Kyiv, Ukraine
Zakaz Global is an international group of companies that includes grocery delivery services such as
Zakaz.ua and Zakaz.md. The company provides services for ordering, picking, and delivering goods
from popular grocery chains.
Responsibilities:

WEB site testing
Mobile App Testing
Test documentation creation (Test Cases, Bug Reports, Checklist,Test Plan)
Requirements testing
Exploratory testing
Cross browser testing
Regression testing
Smoke testing
User interface testing
Checking and analyzing automation test suite run failures
Testing API
Technology and Skills:
API testing in Postman, ASP.NET Core, C#, JSON, Mobile Testing, Smoke Testing, Swagger, Test
case execution (manually) - functional/solution/regression testing, Web API, XML Schema

LANGUAGES
Russian – Fluent
Ukrainian – Native
English – Upper Intermediate

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