VoIP / Telecom Engineer
with strong development and operations
Focus: carrier telephony (SIP, E1/T1, lawful intercept), routing and quality, CDR and analytics, automation, Linux/networks/virtualization.
High work capacity, teamwork, finding effective solutions and focus on results. Personal: high stress resistance, persistence, friendliness, ability to build good relationships. Non-smoker, curious mind keeps my hands busy.
SIP / RTP / E1/T1
Asterisk / ARI
Linux / Networks / VMware
16+ years
telecom, carrier operations
Nizhny Novgorod
will consider relocation
Portal / CRM / Automation
Yii2/PHP, Python/Perl, Telegram
Troubleshooting
tcpdump/Wireshark, production incidents
Skills by area
By area
VoIP / Telecom
- Support and development of fixed telephony: SIP, E1/T1, interconnects/carriers, capacity expansion
- Routing configuration: rules, priorities, route failover, numbering plans
- Quality control: one-way audio, NAT, loss/jitter, latency; SIP and RTP correlation
- Integration and support of lawful intercept requirements (call/event identification, exports/metadata)
SIPRTPSRTPPJSIPWebSocketE1/T1LIAsterisk/ARIEltex SMGCiscoGrandstreamPanasonic
Provider services development
- Development and support of customer portal: routing management, CDR, reports, statistics
- Deployment and customization of Userside CRM: custom modules, integrations, UI tweaks
- Telegram bot development for CRM account creation automation
- Portal/LK development for bundle provider (PHP/Yii2)
- Integration with billing systems via REST API: balance, tariffs, usage, multi-vendor
- LK integrations with various payment systems, including native (Flutter/Kotlin)
- Development of an in-house analogue of the commercial product Sipuni (cloud PBX / SIP platform)
PHPYii2RESTAPICRMKotlin
Hotspot / Public Wi‑Fi
- Development and deployment of turnkey Hotspot
- DHCP, web app, SMS auth
- Logs, session accounting, basic operations
PythonMySQL
Mobile
- App development with Flutter
- Android customization: launcher for provider tasks
FlutterAndroid
Reverse engineering
- Reverse engineering and analysis of C/Java
- Logic/protocol/error cause analysis
CJava
Systems and operations
Infra and ops
Infrastructure / administration
- Administration of Linux/Unix servers: services, security, monitoring, incidents
- Administration of VPS and physical servers
- Web server: apache2, nginx
- Databases: MySQL, PostgreSQL, MongoDB
- RPM packaging: build packages for CentOS/EL (e.g. PostgreSQL)
Linuxnginxapache2MySQLPostgreSQLMongoDBRPM
Network / virtualization / backups
- Router administration across vendors, including MikroTik and OpenWrt (VLAN/NAT/VPN/QoS)
- Deployment and support of highly available VMware: ESXi/vSphere/vSAN
- Development and support of backup systems (backup/restore, procedures)
MikroTikOpenWrtEOIPLuCIVMwareESXivSpherevSANVeeam
Telematics, security, media
- Deployment and support of 1C cluster (Windows/Linux + PostgreSQL)
- System development for IP intercom
- Deployment and support of Kaspersky security products
- Deployment/support/customization of Forpost (video surveillance)
- Deployment and support of Wowza / Flussonic streaming
- IP cameras: integration, vendor APIs (Dahua, NetSurveillance), scripting
1С ClusterKasperskyForpostWowzaFlussonicDahua
Hardware automation
- Development and deployment of automation in telecom cabinets
- Development of centralized IP alert systems
AutomationIP Alerts
Tools and technologies
Stack and tools
Tools
tcpdump
Wireshark
Docker
Bash
Git
Linux / FreeBSD
SIP/RTP traces
sipp
PJSIP
Jira
Kayako
Languages and stacks
PHP
Yii2
Python
Perl
Lua
JavaScript
jQuery
SQL
Flutter
Bash
apache2
nginx
Node.js
Ruby
TR-069
Contact
Reach out