On shift · Network & NOC · CCNA · Craiova

I keep networks running, and build for the datacenter, your wrist, your Mac, the campus, the road, the web.

CCNA-certified, on the Helpdesk & NOC team at Prysmian, preparing for CCNP and studying Automation & Applied Informatics. I monitor, troubleshoot and automate networks by day, and turn what I learn into products. Most of what you see below is running live, not a screenshot.

On shift at a global NOC since 202316,000+ PCs run Device Info750+ downloads of Subtitles Fixer300+ players on PadelGod1,285 checks passing in NOVAAirFliq live on the Mac App StoreCCNA certified · CCNP in progress10 years in IT

On shift

The day job: keeping a global network healthy and the people on it working. Everything else on this page started here.

Helpdesk & NOC OperatorPrysmian · since Jul 2023

  • On shift
  • Craiova
  • All systems nominal

Monitoring

Network and service monitoring, alert triage and fast escalation.

NOC · dashboards

Incident response

L1 and L2 troubleshooting, from the first ticket to the root cause.

ServiceNow · incidents

Switching & routing

Configuration, verification and clean handovers on Cisco gear.

IOS · VLAN · STP · OSPF

Access & wireless

Access point and switch provisioning for new and changing sites.

AP · switch provisioning

VPN & remote access

Keeping remote users and sites connected, securely.

VPN · IPsec

Change windows

Planned maintenance, done carefully and rolled back cleanly.

change control

Runbooks

I own the L1 and L2 runbooks the team works from.

runbooks · knowledge base

Automation

Small tools that remove repetitive work. One lifted a team KPI by 15%.

PowerShell · internal tools

Panels run on sample data. Clock and edge RTT are live.

Built from the NOC

The tools I wished existed on shift, so I built them: a full network lab, a diagnostics engine and a readiness check that runs on 16,000+ PCs.

FavouritePrivate preview · v0.7Windows · macOS · 2026

NOVA Network Lab.
A datacenter on your desktop.

Reproduce a real network, from the WAN down to the cable. NOVA boots real Cisco, FortiGate and Linux systems on its own engine, runs several sites at once and links them over WAN circuits with real delay, jitter, loss and fibre distance. Around them it simulates power, UPS, cooling and cabling. Cut a cable or a WAN link and the ping really fails.

Try it. Click a conductor to cut it.T568B
Link up · ping 10.0.0.2 !!!!! 5/5
Explore NOVA Or just play with the app. It answers.
R13 tabs
Connected Cisco IOSv · serial console
R1>show ip interface brief
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet0/0     10.0.12.1       YES NVRAM  up                    up
GigabitEthernet0/1     10.99.77.254    YES NVRAM  up                    up
GigabitEthernet0/2     unassigned      YES NVRAM  administratively down down
GigabitEthernet0/3     unassigned      YES NVRAM  administratively down down
Loopback0              1.1.1.1         YES NVRAM  up                    up
R1>ping 10.0.12.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.12.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
R1>
Welcome to Virtual PC Simulator, version 0.8.3

Press '?' to get help.

PC1>
Interactive demo · scripted replies

WAN-A ping 10.0.0.2 Live traffic · sample lab
90.2ms RTT
avg 90.3 msloss 0%
84 bytes from 10.0.0.2 icmp_seq=24 ttl=64 time=90.180 ms
WAN behaviourWAN-A eth0 ⇄ WAN-B eth0
Actual route length, separate from the patch cable.
Modeled one-way delay 43 to 47 ms

Includes 5 ms of fibre propagation. Queueing and guest processing add time.

Forwarded48 frames
Dropped0 frames
Waiting0 frames
Buffered0.0 KiB

FW1Firewall
Powered on3 interfaces
R1Router
Powered on4 interfaces
SW1Switch
Powered on4 interfaces
PC1Host
Powered on1 interface
KaliHost
Powered on2 interfaces
100%

Estimated air
21.2°intake/28.2°return
2820 W heat · 2693 W removed
124m 50s · 10× time
WAN-A running WAN-B running R1 running
Estimated air
21.2°intake/28.2°return
2820 W heat · 2693 W removed
4m 21s · 10× time
Cable workbenchWAN-A eth0 ⇄ WAN-B eth0 · Cat6 · 3 m
Fault training
End A · T568B draft Crimped
End B · T568B draft Crimped
Run the wiremap testerThe remote indicator follows the conductor to its actual pin.
Split pair · pins 3/6 and 4/5Continuity passes, but pins 3 and 6 are not a twisted pair. Swap pins 4 and 6 at both ends.
Wiring blocks the link Link downping .....
01/06Real consolesClick the console and type, or let it run Open project
1,285
automated checks, all passing
64
real PCI NICs on a single guest
20
server and network equipment profiles
2D ⇄ 3D
the same devices, ports and cables in both views

Six live demos. Tap one to play it in the app above.

Built with
ElectronReactThree.jsQEMUxterm.jsnoVNCNode.js

Beyond the network

Products for padel players, anglers, students, first-time builders and Mac users, designed and shipped end to end.

300+ players

PadelGod

Book a court in seconds, find a match and score it live from your Apple Watch.

E2E messages

Fish Trophy

Records, a map of fishing waters, a forum and end-to-end encrypted messages for Romanian anglers.

indoor routes

UniMap

Directions to any room, floor by floor, inside your university’s buildings.

22 levels

TinkIT

From your first prompt to your first real product, with hands-on simulators.

$4.99 lifetime

AirFliq

AirDrop in one move: a global shortcut, a right-click in Finder or a drag.

750+ downloads

Subtitles Fixer

Repairs broken Romanian diacritics in subtitles, checking every word against a dictionary.

Kotlin + Swift

Motorcade

A shared live map for friends travelling in several cars: who leads, who fell behind, when to regroup.

≈500M seeds/s

Collatz Lab

Custom CPU and GPU kernels testing the Collatz conjecture: evidence, not proof.

10 years, in parallel

Most of it overlapped. Support desks, game QA, client work, the network, and now university.

  1. Prysmian Helpdesk & NOC Operator Jul 2023 – now3+ yrs

    Support and network monitoring for global teams: alert triage, incidents, maintenance windows, AP and switch provisioning, and the L1/L2 runbooks. One tool I built lifted a team KPI by 15%.

  2. TRK Web Design Founder 2022 – now4+ yrs

    My web and e-commerce studio. Shopify and WordPress builds with real payment integrations, from the first call to launch.

  3. Ubisoft Video Game Tester 2020 – 20222 yrs

    QA on shipping titles: detailed test plans, precise and reproducible bug reports, and onboarding new testers.

  4. Exclusive Streaming IT Team Leader 2016 – 20204 yrs

    Ran IT support and led a small team of technicians. Reworked the support workflow to cut response times.

Use the left and right arrow keys to move through time and hear which roles ran in parallel. Escape clears.

Education

University · Craiova

Automation & Applied Informatics

University of CraiovaFaculty of Automation, Computers and Electronics

In progress
High school · Craiova

Mathematics & Computer Science

Colegiul Național Pedagogic „Ștefan Velovan”

2012–2014

Certified, still studying

One certification, a CCNP training track and the Cisco courses underneath, drawn as the routes they took. Every badge links to its proof.

Certification · Cisco

CCNA

Cisco Certified Network Associate

CCNA badge

CCNP track

In progress

Authorised ENCOR training done. Studying for the CCNP now.

  1. ENCOR 1.3Training. ENCOR 1.3: CCNP Enterprise core. View proof (opens in a new tab)
  2. CCNPStudying now. CCNP Enterprise, in progress

10 Cisco courses and trainings in total.

Let’s build something
worth shipping.

Network and NOC roles, or a product that needs building end to end.

cosmin# show version

Cosmin Trică Software (NOC-K9), Version 2026, RELEASE SOFTWARE (fc1)

Technical Support: cosmin.trica@outlook.com

Compiled in Craiova, Romania

 

ROM: first boot 2016, IT support

cosmin uptime is 10 years

System image file is "flash:/noc-universalk9.ccna.bin"

Last reload reason: curiosity

 

Helpdesk & NOC Operator, Prysmian · CCNA · studying for CCNP

11 projects on board: 3 network tools, 8 apps

 

InterfaceStatusDescription
NOCupMonitoring, incidents, change windows
RoutingupCisco IOS · OSPF · VPN & IPsec
SwitchingupVLAN · STP · AP provisioning
AppsupSwift & SwiftUI · Next.js & React · Supabase & PostgreSQL

 

Configuration register is 0x2102

Esc to exit