Oleg K.
Senior VoIP Software Engineer
Hi, I am a Senior VoIP Software Engineer (dCAP & ITIL certified). I do have experience and offer my services in these areas: VoIP: Asterisk, FreePBX, Elastix, A2billing VoIP Security & Tuning VoIP Integration Network Administration: Cisco, HP System Administration: Linux (expert), BSD*(proficient) Network Monitoring & Management: Zabbix, Cacti, NOC Mail services: Postfix, Exim, Dovecot, Cyrus, Spamassassin Virtualization: Qemu/KVM, OpenVZ, Proxmox High availability: VRRP, CARP, DRBD, GFS2, GlusterFS, cman, Pacemaker Common services: DNS, DHCP, File Sharing, NAT, iptables, ipfw Scripting: Bash, Python Web servers: Apache Database servers: MySQL, PostgreSQL Etc…
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $45k
Billed in all: $844,269$844k
$45k in the last 6 months
Across 87 contracts
Earnings, last 30 days
Skill rankings: #1 in 1 skill of 10
Rarest: top 0.92% in VoIP Administration, of 218. Ranked by MRR among everyone on Upwork with the skill.
- Kamailio45 freelancers · 🇨🇷 #1Top 2%🇨🇷#1 of 1
- VoIP Administration218 freelancers · 🇨🇷 #1Top 0.92%🇨🇷#1 of 4
- Session Initiation Protocol106 freelancers · 🇨🇷 #1Top 2%🇨🇷#1 of 2
- Asterisk211 freelancers · 🇨🇷 #1Top 1%🇨🇷#1 of 1
- VoIP Software176 freelancers · 🇨🇷 #1Top 2%🇨🇷#1 of 3
- #6Websockets613 freelancers · 🇨🇷 #1Top 0.98%🇨🇷#1 of 2
- #13WebRTC468 freelancers · 🇨🇷 #1Top 3%🇨🇷#1 of 1
- #39Linux System Administration2,578 freelancers · 🇨🇷 #1Top 2%🇨🇷#1 of 3