Senior Full-Stack & Infrastructure Engineer

Worked remotely on enterprise security products and RDP solutions for worldwide clients, including Ericom. Delivered a real-time Electron frontend that mirrored cloud-browser DOM content in the client-rendered DOM, with pixel-perfect rendering, WebRTC screen capture, bitmap streaming, cookie and localStorage interception, and browser-native JavaScript overrides.

Designed REST and WebSocket APIs using Node.js, Express, and Swagger, deployed on Docker and Kubernetes environments with Consul. Built a reusable React framework using JSON-driven layouts, modernized a large Material UI and Webpack application to reduce production build time from 15 minutes to 5 minutes, and supported Azure Application Gateway WAF compliance.

Contributed to client engagements including XM Cyber, CyberReason, CellWize/Qualcomm, and Radcom. Led code reviews, technical planning, task coordination, and Scrum Master coverage while maintaining Linux infrastructure and CI/CD pipelines.

Built a web crawler for major search engines using PHP, Erlang, and RabbitMQ. Developed data-management capabilities including partitioned tables, caching, custom reports, and client-facing administration functionality.

Created live charts and data-visualization tools for the client portal. Worked with PostgreSQL, MySQL, Magento, HTML5, JavaScript, and WebSocket technologies.

Managed and maintained features for a high-traffic tourism portal with millions of unique visitors per year, including online booking capabilities for hotels and flights. Built and maintained more than 100 websites and tourism portals.

Improved high-traffic delivery through Varnish caching, MySQL indexing, and Apache/Nginx tuning. Managed server infrastructure including backups, DNS, firewalls, cPanel, and Virtualmin using PHP and MySQL.