Даніл

DANIL SVETAYLO
.NET BACKEND & INTEGRATION ENGINEER
Lviv, Ukraine | Open to Remote / International Opportunities | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
github.com/dellancelod | [open contact info](look above in the "contact info" section)

PROFESSIONAL SUMMARY
Software Engineer with 5+ years of hands-on development experience across web, desktop, embedded, and mobile
applications. Strong background in C#, .NET, ASP.NET Core, Web API, Entity Framework, SQL, and system
integration, with additional experience in C++, Linux, Qt, hardware communication protocols, and IoT-related
development. Experienced in developing internal business systems, CRM solutions, web applications, desktop
software, and integrations between software and external systems. Comfortable working across the full development
lifecycle, from requirements analysis and architecture to implementation, debugging, deployment, and maintenance.
Looking for a .NET Backend, Integration, or Full Stack Engineer position in a remote international team.

CORE SKILLS
Backend: C#, .NET, ASP.NET Core, ASP.NET, Web API, Entity Framework, REST APIs
Databases: MS SQL, PostgreSQL, SQLite, Oracle
Frontend: JavaScript, Angular, HTML, CSS
Desktop Development: WPF, MVVM, Qt / C++
Integration & Hardware: Asterisk, Raspberry Pi, Arduino, CAN, UART, I2C, GPIO
Development & DevOps: Git, Docker, CMake, GCC, Linux, TDD, application deployment
Engineering Practices: OOP, SOLID, design patterns, Dependency Injection / IoC, debugging

PROFESSIONAL EXPERIENCE
Sumy City Council | Chief Specialist, Transport and Communication Department / .NET Developer
November 2025 - June 2026
- Developed an intelligent request-processing system for call-centre operators.
- Designed and developed an internal CRM system using ASP.NET.
- Implemented an Asterisk-based call reception and processing solution.
- Developed and integrated software supporting day-to-day transport department workflows.
Freelance | Full Stack .NET Developer
February 2023 - Present
- Developed and deployed ASP.NET-based turnkey web applications for real clients.
- Built e-commerce websites, backend functionality, and web interfaces using ASP.NET and JavaScript.
- Handled application deployment, production publishing, debugging, maintenance, and feature implementation.
- Selected client projects: Teivaz Clothing Brand (teivaz.com.ua) and GiftsBakery (giftsbakery.com.ua).
Advantiss | Full Stack Developer
August 2022 - January 2023
- Worked with ASP.NET Core and Angular.
- Applied object-oriented programming principles and common software design patterns.
- Worked with PostgreSQL and Git.
- Practiced Test-Driven Development and Dependency Injection / IoC.
- Used Docker for application containerization and collaborated in a team development environment.

Company Confidential | Embedded Developer / Qt Developer
March 2024 - May 2025
- Developed interconnected Raspberry Pi and Arduino systems using the CAN communication protocol.
- Built desktop applications for Raspberry Pi using Qt and C++.
- Implemented communication with external hardware through UART, I2C, GPIO, and CAN.
- Designed and implemented a custom library for an IMU sensor.
- Worked in Linux-based development environments using OpenCV, Caffe, CMake, and GCC.
IT School "Logika" | Python Teacher
September 2021 - February 2022
- Taught programming fundamentals in Python and Scratch to students aged 8-17.
- Managed four groups of up to 12 students and guided students in developing Python-based games.
Freelance | Android Developer
August 2017 - May 2021
- Developed Android application user interfaces, backend-related functionality, and basic widgets.
- Integrated Google Maps API and native advertising functionality.

SELECTED PROJECTS
VideoConductor WPF App
Desktop application for IP camera viewing and passenger registration designed for private transport businesses.
Technologies: C#, WPF, SQLite, MVVM, SOLID
Teivaz Clothing Brand | teivaz.com.ua
E-commerce website developed for a clothing brand.
GiftsBakery | giftsbakery.com.ua
E-commerce website for a gifts and souvenirs brand.
SightFriend | gois.sumy.ua | github.com/dellancelod/SightFriend
Media resource developed for visually impaired users.
Snappy | github.com/dellancelod/Snappy
Screenshot utility designed to simplify capturing, extracting, and manipulating content from screenshots.
MPU-9255 Raspberry Pi | github.com/dellancelod/MPU9255-RaspberryPi
Custom Raspberry Pi library for working with the MPU-9255 IMU sensor.

EDUCATION
Master's Degree in Computer Science | Sumy State University, Faculty of Electronics and Information Technology
September 2024 - June 2026
Bachelor's Degree in Computer Science | Sumy State University, Faculty of Electronics and Information Technology
September 2020 - May 2024

LANGUAGES
Ukrainian: Fluent | English: Professional Working Proficiency