Ivan Machulskyi
Rating
Language proficiency level
CV
Hello! I help businesses optimize their operations, develop custom software, and build resilient IT infrastructure. I am the right fit when you need more than just a task-executor — you need an engineer who truly understands how code interacts with hardware.
How I can bring value to your business:
💻 Backend & Automation:
— Custom CRM/ERP system development and tailormade modifications (PHP).
— Business process automation, Telegram bot development, and seamless third-party API integrations.
— Legacy code refactoring, optimization, and database performance tuning.
🌐 Networks & Systems Administration:
— Deployment, configuration, and migration of enterprise-grade network hardware (MikroTik RouterOS, Cisco).
— Building secure corporate VPN tunnels (WireGuard, L2TP, IPsec) for remote teams.
— Server administration and optimization (Ubuntu Server), setting up monitoring tools and automated backup solutions.
— Deployment and tuning of professional Video Management Systems (VMS Nx Meta/Witness), and optimizing RTSP streams for Dahua/Hikvision cameras to ensure low CPU load.
I deliver results, maintain clear communication, and respect deadlines. Let's discuss your project!
Skills and abilities
Programming
Design & art
Photo, Audio & Video
Promotion
Outsourcing & consulting
Portfolio
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4510 USD Development of a custom CRM system and server optimization
Web ProgrammingA comprehensive project for the development of web modules for an internal CRM system (PHP) and the setup of a fault-tolerant server environment for its operation.
What was implemented:
• backend logic: writing and customizing task automation modules, client cards, and integration with APIs (including Telegram bots for notifications).
… • Optimization: refactoring legacy code, rewriting complex database queries to speed up system response.
• Infrastructure: deployment and administration of a web server based on Ubuntu Server. Setting up automatic backups and monitoring systems.
The project has been successfully launched, allowing the client to automate routine processes and ensure stable system availability 24/7.
#PHP #CRM #Ubuntu #Backend #Automation #SysAdmin #API