Назар

NAZAR YARKULOV .NET developer
Telegram: @Hymares email: [open contact info](look above in the "contact info" section)
I am a .Net dev with 5 years of commercial experience and a desire to make products more convenient. I love coding and
making the user experience more positive.

Work experience
Stargazer, .NET developer Aug 2024 - Present
Description: At Stargazer, I have been developing Almagest, a distributed AI-powered ecosystem built on .NET Aspire that
integrates Blazor frontend, GraphQL API, and microservices communicating through containers and event pipelines. The
platform connects data from multiple external APIs, performs real-time processing, and stores analytics in ClickHouse
and Azure SQL. My key responsibilities included:

• Designing and implementing scalable Blazor components with modern UI/UX and responsive layout.

• Building and orchestrating microservices using .NET Aspire with secure configuration via Azure Key Vault and
containerized environments.

• Developing GraphQL APIs with authentication and authorization through custom middleware and API-key validation.

• Implementing high-performance data pipelines for collecting, transforming, and storing data in ClickHouse and
external APIs.

• Integrating AI-driven features using Azure OpenAI, Semantic Kernel (MCP) functions, and prompt-based workflows.

• Collaborating on application architecture, diagnostics, and optimization of distributed components.

• Writing clean, maintainable code following SOLID, CQRS, and best DevOps practices for continuous delivery.

Stack:C#, .NET 8, Blazor, Aspire, GraphQL, Entity Framework, ClickHouse, Azure OpenAI, Semantic Kernel (MCP), Docker,
REST API, Git.

Suplery, .NET developer Aug 2023 - Sept 2024
Description: this is a b2b product startup for the US beauty industry.

The project is built using a modular monolith architecture that provides api for React frontend, uses MySQL db.

My Achievements/Tasks:

Integrating external APIs: Amplitude, Sentry, OpenAI, Google search;

Implementing logging and it`s storing in db with possibility of analyse performance of queries and find bottle necks in
API productivity;

Implementing business logic and bug fixing of core functionality of project;

Implementing custom deploy app with github and slack integration for fast automatic deployment of different API
branches versions;

Massive refactoring work in order to optimise and structuring existing code base;

Close work with frontend for real time debug-fixing fresh implemented functionality

Participating in discussions and contributing to decisions regarding architecture and methods for implementing
functionality.

Transferring project from .NET 5 to .NET 7.

Doing some small work or fixes on frontend side.

Stack:Entity framework, Git, MySql, Azure, .NET 5 - .NET 7., React

Quipu, .NET Developer Jun 2021 - Aug 2023
Description:It was a fintech product. The application consisted of one large monolith and a dozen microservices based on
.Net 3.5 - .Net 4.8.

Our team was responsible for the customer support, bug fixing, implement functionality that bank needed in and several
batch jobs. I mainly worked several exact countries, and my main responsibilities included: adding new functionality, fixing
bugs, code refactoring, investigating the process functionality of the system, and correcting the problems, interacting
with the bank's staff to quickly identify problems that arose.

Achievements: I created and configured batch job, I fixed tricky bugs, I performed big refactoring on API that helped
noticeably improve performance.

Stack: Entity framework, TFS, Sql Server, Win forms, WPF, .NET

IT enterprise, .NET Developer Aug 2020 - Jun 2021
Description: It was an enterprise CRM product for Ukrainian enterprises. The application consisted of one large monolith,
some of specific methods were added by Python and C# scripts.

I have been working in the domain of Internet of Things.

Experience working with custom wrapper of ADO.NET and expanding this wrapper.

Achievements:I wrote a functional for predicting electricity consumption, worked with real data from an office building.

Stack: custom wrapper of ADO.NET, Sql Server, Mongo db, IoT, .NET

skills
Asp Net Core/ Web API/ MVC, GOF, Principles(DRY, SOLID), TDD, DDD, Python, Sql Server, Mongo Db, Unit Tests,
Branching Strategies, GIT, TFS, Swagger, Entity framework, JavaScript, React

Education
Automation and computer-integrated technologies, NTUU “KPI”, 2016-2020
Studying of automation processes in production, programming of controllers and also C#, SQL.

Languages
English Fluent Ukrainian Native