I am open to long-term remote and onsite jobs.
Work 12 years on server security, cloud, AWS, OpenStack, VoIP, Asterisk, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, OpenStack, Mysql, Redhat, Python, PHP scriptwriter for IVR and AGI implementation on asterisk, have a good team for support and further development. Puppy Linux customization.
• Linux - Hosting Systems Administration & Monitoring
• Design and implement High Performace SIP SBC
• DevOps CI/CD
• Services Optimization
• Security Hardening
• VoIP, Asterisk, SMS, Dongle, FreePBX install, configure, maintain
• WebRTC SIP Phone
• Infrastructure Planning
• Disaster Recovery
• Shell Scripting
• Capacity planning, application delivery planning
• Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP IGRP, MPLS
• SAN Troubleshoot
• GlusterFS, CEPH
• NFS, SMB, ISCSI, SMTP
• Linux performance tuning
• MySQL, Oracle DB performance tuning
• Laravel web application development
• Web Security, Web benchmark, best practice
• IPTV, Live streaming, VOD, FFmpeg
• Raspberry Pi
The project was challenging to deploy with docker, MsSQL, MySQL, PHPMyAdmin, and Drupal containers. The complexity of restoring the MsSQL databases took some quality time. The freelancer was patient enough to solve all the errors and debugged the setup successfully, and we have it running locally.
I am working as an Engineer in Telecommunications, in Cloud telephony service provider with Linux, SIP, Asterisk, Networking, and AWS.
Reduce customer complaints by 60%, with improved infra design.
Removed bottleneck, Removed Single point of failure.
Implemented Monitoring system,
Automated server and service provisioning.
Integration with Zendesk as voice channel provider,
Design and Deployed WebRTC phone,
Rearchitected AWS infra for cost optimisations.
gru 2012 - cze 2017 (4 lata, 6 miesięcy)
Dealing with VoIP, Web development, vtiger integration, Call Center, And asterisk PBX, VoIP billing solution, a2billing install, customization, Server Rent and Commercial VoIP software like voipswitch, VOS3000, Mor-12, MVTS, install, configure and, support.