Incident response
Structured troubleshooting, clear escalation, and practical handover notes.
NETWORK ENGINEERING & NOC OPERATIONS
Sina Zangeneh
Network Engineer
MikroTik · Zabbix · VoIP
More than ten years of hands-on experience in network infrastructure, monitoring, and IP telephony. I work across routing, service troubleshooting, and automation to support day-to-day network operations.
View technical workContact meENGINEERING IN FOCUS
Network infrastructureRouting · Connectivity · Automation
10+Years of experience
MScIT · Computer Networks
EN / FAEnglish & native Persian
01
Professional profile
Infrastructure experience with an operational focus.
Network infrastructure.
Operational discipline.
My background combines MikroTik and Cisco networking, Linux administration, VoIP platforms, and service monitoring. I hold an MSc in Information Technology with a focus on computer networks.
My professional direction is NOC supervision: structured incident investigation, clear escalation, shift coordination, and useful operational reporting. My automation work focuses on repeatable tasks and consistent configuration.
Team & shift coordination
Planning round-the-clock coverage and making responsibilities visible.
Service visibility
Monitoring, alert review, and reports that support operational decisions.
Continuous improvement
Documented procedures, configuration backups, and workflow automation.
02
Core technical expertise
Routing, observability, and communications.
NETWORK INFRASTRUCTURE
MikroTik / RouterOS
Routing, secure connectivity, and traffic management across RouterOS v6 and v7.
- OSPF, BGP policies, recursive routing & failover
- WireGuard, OpenVPN, L2TP, GRE & IPIP
- Firewall, NAT, queues & troubleshooting
MONITORING & OPERATIONS
Zabbix / Cacti
Host and link visibility, alert investigation, and reports that support NOC operations.
- ICMP availability & interface traffic monitoring
- Triggers, event review & operational dashboards
- API-based host onboarding & reporting
VOICE & COMMUNICATIONS
FreePBX / Issabel
Administration and troubleshooting of Asterisk-based telephony and call-center workflows.
- SIP / PJSIP trunks & call routing
- Queues, IVR, voicemail & follow-me
- CDR, recordings & call-flow troubleshooting
Technology illustrations are conceptual; they are not product photographs or production dashboards.
03
Selected technical work
Practical experience and defined project scopes.
These examples describe my areas of work and automation projects. Each entry sets out its technical scope and tools.
Practical experience
FreePBX & Issabel operations
PBX configuration and troubleshooting across call routing, SIP trunks, queues, voicemail, and call records.
Asterisk · FreePBX · Issabel
Technical scope
Scope: SIP/PJSIP trunks, queue behavior, voicemail, call routing, and CDR troubleshooting.
Project scope
Zabbix host onboarding
A project to bring spreadsheet-based host lists into Zabbix, apply consistent tags, and organize ICMP graphs in a shared dashboard.
Zabbix API · ICMP · Dashboards
Technical scope
Scope: spreadsheet-based host import, consistent tagging, ICMP monitoring, and shared dashboards.
Project scope
MikroTik backup automation
An automation project for collecting binary backups and configuration exports, organized by each router’s identity.
RouterOS · SSH · Configuration backup
Technical scope
Scope: collecting RouterOS binary backups and readable configuration exports, organized by device identity.
Practical experience
Connected operational reporting
Using n8n and APIs to connect monitoring events, spreadsheet checks, scheduled tasks, and email reports.
n8n · REST APIs · Google Sheets
Technical scope
Scope: scheduled spreadsheet checks, monitoring events, API integrations, and formatted email reports.
Project scope
NOC performance & shift planning
A portal project bringing together shift schedules, Jira activity, and telephony metrics to support performance reporting and pay calculations.
Jira · PBX metrics · Shift scheduling
Technical scope
Scope: shift calendars, Jira activity, telephony metrics, and rules for performance and pay calculations.
Project scope
VPS network provisioning
An API automation project for coordinating VPS IP assignments, RouterOS configuration, and source-address connectivity checks.
Cloud APIs · MikroTik · Connectivity checks
Technical scope
Scope: cloud IP assignment, RouterOS configuration, and connectivity validation using each source address.
04
Technical toolkit
The technologies behind the work.
Routing & switching
MikroTik · Cisco · OSPF · BGP · VLAN · NAT
VPN & secure access
WireGuard · OpenVPN · L2TP · GRE / IPIP · Firewall policies
Voice & collaboration
Asterisk · FreePBX · Issabel · SIP / PJSIP · Zimbra
Monitoring & operations
Zabbix · Cacti · ICMP · Jira · Incident investigation
Systems & virtualization
Linux · Bash · VMware ESXi · Docker · Nginx
Automation & integration
n8n · REST APIs · Scheduled workflows · Google Sheets
PROFESSIONAL CONTACT
Discuss a role or
an infrastructure project.
For NOC opportunities, network engineering, monitoring, VoIP, or infrastructure automation, contact me by email.
Get in touch↗