Monitoring, optimization, security, troubleshooting, network configuration, and automation of infrastructure processes.
Yevhenii Kolesnyk
DevOps Engineer
System Engineer
Computer engineer
Software developer
Web developer
Yevhenii Kolesnyk
DevOps Engineer
System Engineer
Computer engineer
Software developer
Web developer
About Me
hey, there 
I have more than 13 years of experience in administering systems under Linux and Windows OS, experience in web development (more backend) and experience application development in different languages for various operating systems.
- Age: 32
- Residence: NL
- Freelance: Available
- Address: Amsterdam, NL
My Services
Server and Network Configuration
Setting up servers and network equipment, installing and configuring operating systems and software.
Monitoring and analytics
Round-the-clock monitoring, metric collection, and analysis of network, software, and hardware performance.
Cyber Security
Protection against DDoS attacks, vulnerability scanning and remediation, server and network updates and maintenance.
Development and automation
Web development and application development, implementation of their automatic deployment on servers and virtual machines.
Resume
Experience
2025 - now
Systems Engineer
Fishfacts B.V.
2017 - 2025
Technical Operations Engineer
Namecheap Inc.
Monitoring, optimization, protection, and troubleshooting of the current
infrastructure: DNS, VPS hosting, Mail and Shared hosting.
2013 - 2025
Linux System Administrator
MIRhosting B.V.
Monitoring and troubleshooting infrastructure servers: Cloud platform, VPS hosting, Shared hosting. Technical support and administration servers for clients.
2010 - Present
Freelancing
Freelance exchanges and own clients
Developing applications and Web development based on client requests. Server administration services. Design and installation of computer networks and equipment.
Skills
PROGRAMMING AND SCRIPTING
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Python
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Bash
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PHP
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Go, Java, C#
Languages
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Russian
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Ukrainian
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English
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Dutch
Operating systems
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Linux90%
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Windows75%
Knowledge
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Administration of Linux and Windows operating systems
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Administering networks
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Infrastructure as Code (IaC)
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Writing Bash and Python Scripts
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Experience in web development (PHP, JS, HTML CSS)
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Experience in containerization and virtualization (docker, openvz, kvm)
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Deep knowledge of DBMS (PostgreSQL, MySQL, MongoDB)
Works
Blog
June 7, 2026
Building Blinkbound — Fast Endless Platformer for iOS
Blinkbound is a fast endless platformer I developed for iOS, built around precise movement, blink dashes, slam attacks, procedural runs, upgrades, quests, achievements, and quick mobile gameplay sessions.
May 24, 2026
Building NetPulse Diagnostics — iOS Network Troubleshooting Toolkit
NetPulse Diagnostics is my published iOS network troubleshooting toolkit for checking DNS, TCP, UDP, HTTP/HTTPS, SSL certificates, public IP, LAN devices, speed tests, local interfaces and exportable diagnostic reports.
May 17, 2026
Building RouteKeep Cam — iPhone Video and GPS Route Recorder
RouteKeep Cam is my published iOS application for recording video clips with GPS tracks, reviewing routes on a map, exporting local files, and optionally transferring recordings to RouteKeep Cloud.
May 3, 2026
Lantern RTSP Cam — iPhone RTSP Server and Client App
Lantern RTSP Cam is an iOS application I developed to turn an iPhone into a local RTSP H.264 camera source and a practical RTSP client for compatible IP camera streams.
Get in Touch
- Address: Amsterdam, NL
- Email: [email protected]
- Phone: +31 6 85 49 85 99
- Freelance: Available
Contact Form