Denys

Kyiv, Ukraine

Senior Software Engineer & DevOps Specialist

About Me

Senior Software Engineer and DevOps specialist with extensive experience in building and deploying scalable applications. Passionate about cloud architecture, automation, and implementing efficient CI/CD pipelines. Proven track record in leading teams and delivering high-performance solutions across multiple technology stacks.

Featured Projects

v2RayTun | iOS VPN Client

A sophisticated iOS application developed using SwiftUI, leveraging the XRay Core library (Golang) for secure VPN connections. This client offers seamless proxy functionality through an intuitive user interface.

SwiftUI

Golang

Xray Core

NashVPN | Cross-Platform VPN Service

A comprehensive VPN solution available across multiple platforms (iOS, Android, Windows). Built with modern technologies to ensure optimal performance and security.

SwiftUI

Java/Kotlin

Flutter/Dart

Golang

Xray Core

Aeza Security | VPN Solution

A robust VPN service by aeza.net, offering cross-platform support with advanced security features and seamless connectivity.

SwiftUI

Java/Kotlin

Flutter/Dart

Golang

Singbox

Technical Skills

Languages

Java

Python

Swift

Objective-C

Golang

TypeScript

JavaScript

C++

PHP

Kotlin

Dart

Technologies

Spring

PostgreSQL

Docker

Kubernetes

AWS

Azure

CI/CD

Git

Linux

Next.js

React.js

Tailwind CSS

SwiftUI

UIKit

FastAPI

Flask

Express.js

Laravel

Cloud

AWS

GCP

Azure

Terraform

CloudFormation

Google Cloud Storage

AWS Lambda

Azure Functions

Google Kubernetes Engine (GKE)

Databases

PostgreSQL

MongoDB

Redis

Elasticsearch

MySQL

ClickHouse

SQLite

MariaDB

Firebase

Tools

Jenkins

GitLab CI

GitHub Actions

Ansible

Prometheus

Grafana

Jira

VS Code

IntelliJ IDEA

Docker Compose

Frameworks

Angular

Vue.js

ASP.NET

Spring Boot

Flutter

React Native

Electron

Frontend

HTML5

CSS3

SASS/SCSS

Bootstrap

Material UI

Tailwind CSS

Shadcn

Webpack

Babel

TypeScript

Responsive Design

Next.js

React

Vue

Svelte

Backend

Spring

FastAPI

ASP.NET Core

GraphQL

SocksJS

Mobile Development

SwiftUI

UIKit

Security

OWASP

JWT

OAuth

SSL/TLS

Firewalls

Penetration Testing

SIEM

IDS/IPS

Encryption

Vulnerability Assessment

Version Control

Git

Bitbucket

GitHub

GitLab

Server Administration

Linux Administration

Windows Server

Shell Scripting

PowerShell

Nginx

Apache

HAProxy

Load Balancing

Monitoring

VPN Development

OpenVPN

WireGuard

Xray Core

Singbox

3x-ui

Marzban

Server-Side Scripting

Node.js

Python Scripts

Bash Scripting

PowerShell

Status Monitoring

Prometheus

Grafana

ELK Stack

Desktop Applications

Electron

WPF

Flutter