Маркіян

MARKIIAN PYTEL
.NET ENGINEER

PROFILE
Motivated and detail-oriented .NET Developer with 3 years of
commercial experience in backend and full-cycle software
development. Strong foundation in software engineering
principles and hands-on experience building, maintaining, and
modernizing applications using the .NET ecosystem.

CONTACT Started programming in C++ (procedural and functional
paradigms) in 2021–2022, then transitioned to C#/.NET in 2022
[відкрити контакти](див. вище в блоці «контактна інформація») and have been working professionally in the field since then.
[відкрити контакти](див. вище в блоці «контактна інформація») Experienced in both legacy and modern architectures, including
ASP.NET MVC, WinForms, Minimal APIs, and service-oriented
Latvia, Riga
approaches.

HARD SKILLS Graduated with a Junior Specialist degree in Computer
Engineering (Specialty 123) from Lviv Polytechnic College (2018–
Programming Languages & 2022) and currently pursuing a Bachelor’s degree in Information
Systems and Technologies (Specialty 126) at Lviv University of
Frameworks Internal Affairs (2022–2025).
C# / .NET – strong knowledge
Additionally, completed a .NET Developer professional course at
JavaScript – middle knowledge
CyberBionic Systematics, gaining practical experience in building
Angular – middle knowledge modern applications with C# and .NET technologies.
C++ – basic knowledge Passionate about backend development, clean architecture, and
writing maintainable, efficient code.
Web & Backend Development
EXPERIENCE
ASP.NET Core (MVC, REST API,
**.NET Developer (Outsourced to Acclamare)**
Minimal API) – strong knowledge Insiders, Remote / Ukraine
gRPC – middle knowledge
May 2023 – November 2023

Entity Framework Core – strong - Developed and maintained a legacy desktop ERP system using
knowledge WinForms (DevExpress) and .NET Framework.
- Monolithic MVC architecture with ADO.NET/Dapper; 80% of
ADO.NET / Dapper – strong
business logic implemented in the database.
knowledge - Automated business processes: emails, tax calculation, payment
ASP.NET Identity / JWT – strong document generation, bank integrations.
- Refactored to gRPC-based inter-service communication for
knowledge
modernization.
Database Technologies - Active use of Azure DevOps for CI/CD, task boards, and
deployments.
MS SQL Server – strong knowledge
- Participated in task estimation, Scrum ceremonies, and direct
PostgreSQL – middle knowledge client communication.
MongoDB – middle knowledge
Technologies: WinForms, DevExpress, .NET Framework,
ADO.NET, Dapper, SQL Server, gRPC, Azure DevOps, MVC.
 DevOps & Tools
EXPERIENCE
Git – strong knowledge
**.NET Backend Developer**
Azure DevOps – middle Polarix Data & Sping – Healthcare Project “Zaffire” (Remote)
knowledge
December 2023 – July 2024
Docker – middle knowledge
- Co-developed a healthcare web app backend using .NET 8 from
GitHub Actions – middle scratch with one other developer.
knowledge - Used Minimal API, Vertical Slice Architecture, and CQRS with
MediatR.
Architecture & Patterns - Integrated Azure Cognitive Services (Speech-to-Text), GPT-
SOLID, OOP principles – strong based logic, and handled voice-to-text workflows.
- Implemented Identity, FluentValidation, Serilog, AutoMapper,
knowledge and EF Core for Azure SQL.
Repository Pattern, CQRS - Managed backend independently; collaborated with frontend
developers.
(MediatR) – strong knowledge
- Project management via Jira; designs in Figma; handled story
Vertical Slice Architecture – point estimation.
middle knowledge
Technologies: .NET 8, Minimal API, Vertical Slice, CQRS, MediatR,
Microservices fundamentals –
Azure Cognitive Services, EF Core, FluentValidation, Identity,
middle knowledge AutoMapper, Serilog, Azure SQL, Jira, Figma.

Libraries & Frameworks
AutoMapper – strong knowledge
FluentValidation – strong
**.NET Engineer** (Outsourced to Propelhealth)
knowledge GeekGroupllc (Remote)
Serilog – strong knowledge
August 2024 – September 2025
Testing & AI/ML - Working on a legacy and actively maintained ASP.NET MVC
xUnit – middle knowledge application based on .NET Framework.
- Developing and supporting backend functionality using MVC
ML.NET – basic knowledge
architecture and Dapper for data access.
OpenAI API integration – middle - Implementing frontend behavior using JavaScript and Razor
knowledge
views.
- Maintaining and extending existing business logic related to
healthcare workflows.
SOFT SKILLS - Writing and optimizing SQL queries and stored procedures.
- Fixing bugs, improving performance, and participating in
Problem-solving ongoing refactoring.
- Collaborating with distributed team members and following
Attention to detail established development processes.
Communication skills
Technologies:
Teamwork
ASP.NET MVC, .NET Framework, Dapper, JavaScript, SQL Server,
Adaptability Razor, HTML/CSS.
Time management
Self-motivation EXPERIENCE
Critical thinking
**.NET Engineer** (Product)
Willingness to learn Shop-Express (Remote)
Responsibility
September 2025 - Present
Collaboration
- Contributed to the development and modernization of a high-
Patience and persistence load product platform.
- Designed and implemented microservice-based features using
.NET 10.
- Built asynchronous communication with gRPC and message-
LANGUAGES
driven architecture using MassTransit with RabbitMQ.
Developed data access layers using LINQ, PostgreSQL, and
Ukrainian (Native)
MongoDB.
English (B2 - Upper- - Integrated and actively worked with OpenAI API, implementing
Intermediate) AI-driven features and business logic automation.
- Collaborated closely on AI-related functionality, including
prompt engineering, optimization, and production integration.
- Improved system scalability, performance, and reliability
through architectural enhancements.

Technologies:
.NET 10, gRPC, MassTransit, RabbitMQ, LINQ, PostgreSQL,
MongoDB, OpenAI API, ASP.NET MVC, .NET Framework.

A BIT ABOUT ME

Outside of programming, I enjoy activities that challenge both my
mind and body. I'm passionate about speedcubing, often solving
Rubik's Cubes to sharpen my focus and problem-solving speed. I
also enjoy playing board games with friends, which helps me
develop strategic thinking and collaboration. To stay active and
maintain a healthy balance, I regularly go to the gym.

In addition, I enjoy helping friends who are learning programming
— sharing advice, explaining concepts, and supporting their
growth. These hobbies and interactions keep me motivated,
disciplined, and always striving to improve — both as a developer
and as a person.