Pavel Razboynikov. Portfolio
Senior Backend Engineer with 17+ years of experience, including 9+ years in C#/.NET and 3+ years in Go. Specialized in backend systems design, legacy modernization, and microservices architecture. Proven ability to enter complex, under-documented codebases and ship meaningful improvements fast. Built production-grade systems across fintech, real estate, construction, and industrial automation. Capable of operating as both a hands-on engineer and a technical lead — designing architecture, mentoring, managing client communication, and driving delivery end-to-end.
I dance Argentinian tango, kizomba, contemporary, bachata.
I'm a tango teacher, and write articles and tales. I have a musical education, and play piano and ukulele.
I've traveled around the world.
English (B2), Spanish (B1), Russian (native)
C#, Go, JavaScript, TypeScript,
.NET Core, Blazor, React.js,
EF, Dapper,
REST API, gRPC, CQRS, JWT,
MSSQL, PostgreSQL, MySQL, MariaDB, MongoDB, Kafka, Redis, RabbitMQ,
NUnit, xUnit, Unit Testing, Integration Testing, Benchmarks,
Kibana, Grafana, TeamCity, AWS, Docker,
Telegram API, OpenAI API,
Git, Jira, GitLab,
Raspberry Pi, CoDeSys, PLC, Asterisk
I Wanna Dance (https://iwd.today)
This website was developed for social dancers to find places to dance anywhere in the world.
It also allows teachers, dance schools, DJs, performers, dance shows organizers, dance halls owners to showcase themselves and their services.
It's perfect for those who travel and want to find a place to dance in a new city.
In short: it's Airbnb for social dancers.
Available in English, Spanish, Turkish, and Russian.
C#, .NET Core, MSSQL, Blazor, Grafana
GymStats (https://gymstats.info)
A web service that helps track gym workouts and shows progress.
It allows you to select exercises based on the muscle groups you want to train, track your progress, and analyze your workouts.
You can also add your own exercises.
Available in English, Spanish, and Russian. It has black and white themes.
You can view it without registration.
I also have a copy of this website developed using Go, React.js with TypeScript, and MongoDB.
C#, .NET Core, MSSQL, Blazor
CodeShot (https://github.com/Mansiper/CodeShot)
An open-source service that turns a code or a plain text into a beautiful screenshot using more than 15 parameters.
HTML, CSS, JavaScript
Shopping List (https://t.me/SmartShoppingListBot)
It's a Telegram bot designed to manage shopping lists using AI.
Users can interact with it via text or voice messages and choose from 10 different languages for the interface.
C#, MSSQL, Telegram API, OpenAI API, Grafana
Task List (https://t.me/SmartTaskListBot)
It's a Telegram bot designed to manage task lists using AI.
Users can interact with it via text or voice messages and choose from 10 different languages for the interface.
C#, MSSQL, Telegram API, OpenAI API, Grafana
ArgsToConfig (https://github.com/Mansiper/ArgsToConfig)
A .NET library designed to simplify configuration management.
Developers can use it to easily convert command-line arguments into configuration settings.
C#, .NET