Hire the Best Asterisk Experts
in Ukraine

👋 Hi, I’m Oleksii - a Twilio expert with over 7 years of hands-on experience building scalable, real-time communication systems using the full Twilio stack: 📞 Programmable Voice / SMS, 🧠 TaskRouter & Flex, 🎛️ Studio, Functions, Conversations, Sync, Webhooks and more. I’ve successfully completed 120+ Twilio projects on Upwork, including: • Eliminating latency issues in phone calls 🔧 • Creating SMS marketing automation pipelines 📲 • Developing full-scale Flex dashboards with custom workflows 🧩 Clients describe me as: “Very skilled, excellent communicator, smart guy and a pleasure to deal with.” “Oleksii was very helpful and available :) We no longer have problems with latency during our phone calls.” 🛠 Whether you need help with: • Twilio Studio call flows • Complex webhook-based automation • TwiML, IVR, call forwarding setups • Integrating Twilio with CRMs or internal systems • Building voice/SMS logic in Node.js, Laravel, or Firebase environments …I’ve got you covered. Let’s bring your Twilio-powered solution to life 🚀 Feel free to invite me to your job or message me with questions.

I am a Senior DevOps Engineer with 9 years of experience in System Administration, Networking and DevOps areas. Have hands-on experience with migration and building infrastructure in clouds (Azure, AWS, GCP). Can help in providing micro-services based on Kubernetes and Docker. If you are looking for a DevOps to deploy your code or maintain the infrastructure you can count on me. Certification: - Certified Kubernetes Administrator (CKA) - Cisco Certified Network Associate (CCNA) Core Qualifications: - Clouds: Amazon Web Services (AWS), Azure, GCP - Containers: Kubernetes, CoreOS, Docker - CI/CD: Jenkins, VSTS, FluxCD, AgroCD - Networking: Routing, switching, VoIP, virtual networking - Hypervisors: VMware, Hyper-V - Automation: Ansible, AWS CloudFormation, Terraform - Databases: Mysql (Galera), PostgreSQL - Logging: Fluentd, Logstash, Elasticsearch, Kibana - Monitoring: Zabbix, Grafana, Prometheus - VPN: OpenVPN, IPsec. - Web: LAMP, Nginx

I am system/network administrator for over 14 years. Main specialization: * AWS/AmazonWebServices * Linux (Debian/CentOS) * LAMP/LEMP, PLESK, WHM/CPanel, VestaCP hosting panels * Websites/appalications/servers migration * Virtualization (KVM/LXC) * VoIP - Asterisk(IVR, DialPlan), Grandstream VoIP Phones(provisioning), Cisco VoIP Phones * Monitoring (Sensu+Grafana, Nagios, Zabbix, Cacti) * Networking * Cisco/Juniper/DLink/ZyXEL Switches/Router * VPN solutions - openvpn/ipsec/IPoE Good knowledge of CMS WordPress Basic knowledge of HTML, CSS, PHP, Perl, Ruby

System Administration: I have extensive experience working with Linux/Unix systems, including CentOS, Debian, Ubuntu, AlpineLinux, FreeBSD, as well as Windows Server. I have configured and maintained servers from various manufacturers such as HPE, DELL, IBM, Supermicro. Familiar with various hosting control panels: DirectAdmin, cPanel, Plesk, VestaCP/HestiaCP, CWP. Integration and Automation: I have deep knowledge of protocols on hosting servers: HTTP(S), DNS, FTP, SFTP, SSH, SMTP, IMAP. Developed and implemented integrations for optimizing and automating server infrastructure processes. Virtualization and Cloud Technologies: Significant experience with virtualization, including KVM (Proxmox, Libvirt), VirtualBox, OpenVZ, LXC, VMWare. Configured and managed virtual environments, aiming for maximum flexibility and efficiency. Networking Solutions: Proficient in maintaining networks on equipment from Juniper, Cisco, Mikrotik. Confidently configured VLANs and BGP, as well as controlled the operation of the network firewall to ensure security and stability. Telephony: I have experience working with SIP telephony systems, such as Asterisk, for setting up and supporting VoIP communication, ensuring reliability and quality of communication. Worked with FreePBX, including developing various integrations through its API. Programming and Scripting: Proficient in programming with PHP and JavaScript, successfully developed various modules and integrations for the WHMCS billing system. Familiar with Python and its use for task automation and script development to enhance work efficiency.

Hello, my name is Anton. I'm a PHP developer with several years of experience in the industry, and I have over 15 years experience of software development. I was working with many programs and technologies. I'm searching for an opportunity to expand experience, and learn something new. I want to work on challenging and interesting projects. I also have gained considerable experience in the following: — Web Core: XML, JSON, HTML/CSS, JavaScript, AJAX; — IDE: PhpStorm, NetBeans, VSCode, IntelliJ IDEA, Eclipse; — Script Programming Language: PHP, BASH, Perl; — Frameworks: Yii2, Symfony, Laravel, Kohana, CodeIgniter, Phalcon, OpenCart, ocStore; — MemCached, Redis; — Database Core: SQL, MariaDB, MySQL, PostgreSQL, SQLite, OracleSQL, MSSQL; — OS: Unix, Linux, CentOS, Ubuntu, Debian, FreeBSD, Windows, Mac OS X; — VCS: GitLab, GitHub, Git, SVN, Bazaar, Mercurial; — Bug/Issue trackers: Jira, Redmine, Assembla; — UML, OOP;

Hi! 👋 I’m a VoIP & Systems Engineer focused on building reliable IT infrastructure, cloud environments, and business telephony systems for companies that need stability, scalability, and performance. I design and deploy turnkey solutions including FreePBX/Asterisk PBX systems, Linux server infrastructure, private cloud platforms (Proxmox/KVM), networking, monitoring, and secure VoIP architecture. My work combines system administration, DevOps practices, and telecom engineering to create fully integrated environments. Core expertise includes: • Asterisk / FreePBX deployment and integration • SIP architecture, IP telephony and business communications • Linux servers (Debian, Ubuntu, RedHat, FreeBSD) • Cloud infrastructure, virtualization, and containerization • Proxmox VE, HA clusters, storage and backup solutions • Networking, VPN, BGP, and infrastructure security • Monitoring (Zabbix, Prometheus, Grafana) I help businesses launch, migrate, optimize and maintain infrastructure that runs smoothly, securely and efficiently. Let’s build scalable and high-performing systems for your business 🚀