Summary:Over 20 years of experience in IT industry, specializing in VoIP/UCaaS solutions, software development, backend/API integration. AWS, Go, Kubernetes, Cisco.Key certifications:- AWS Certified DevOps Engineer - Professional- Cisco Certified Network Engineer: CCIE R&S 43911- Kubernetes CKA/CKAD- Cisco Certified DevNet Professional- 3CX Advanced Certified Engineer- Asterisk Certified Engineer: dCAAProfessional Experience:DevOps Engineer: Specialized in Backend/API/integration software development.Networking Specialist: Proficient with Cisco and Meraki equipment configuration, troubleshooting, and support.Custom Development for VoIP Systems: Complex VoIP integrations with third-party API and CRM.AWS Voice/AI Services: Experience with Connect, Lex, Chime, Polly.VoIP System Engineer: Expertise in SIP, SCCP, Asterisk/Elastix/Trixbox/Thirdlane, Kamailio, Sysmaster, Tekelec.Technical Skills:Programming Languages: Go (advanced), Bash (advanced), PHP (average), Python (beginner)Frameworks: Laravel, SmartyCloud/Virtualization: Kubernetes, Docker, AWS, VMWare, OpenVZFrontend: jQuery, DataTables, Bootstrap, JSON, REST API, LaravelOperating Systems: Linux (CentOS, Debian) installation and maintenance, including services such as mail, DNS, and webDatabases: Postgres, MySql, Sybase, MSSQL, MongoNetworking: Cisco equipment expertise, with skills in switching and routingCMS: Drupal - installation, configuration, and custom module developmentIDE/Tools: Intellij Idea, Netbeans, VIM, Atom, Jira, GitHub, apiari.io, Salesforce, Wireshark, tcpdump, GitHubSpecialties:VoIP solutions configuration, maintenance, and troubleshooting.Custom development and integration.Backend/API development.Telecom billing development.Network design and configuration.Training and consulting.Git:https://github.com/olegromanchukhttps://github.com/git-improcomPublications: