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Carla J.

Carla J.

Network & Perimeter Security Engineer | Banking-Grade Firewall & WAF

Perimeter Security Specialist | 10+ Years | Regulated Banking & Critical Infrastructure. I secure network perimeters for banks and critical infrastructure operators, and keep them audit-ready for regulators and HQ. 3 years in a BCRA-supervised bank (Argentina's central bank — comparable oversight to the Bank of Spain/EBA): control evidence for regulator and HQ audits, change management with prior risk assessment. Before that, 7 years in 24/7 ops for Argentina's state telecom (ARSAT), where I built my perimeter specialty. *Core skills:* 🔹 Check Point & Fortinet firewall admin, policy optimization with AlgoSec 🔹 F5 WAF — 85%+ coverage of exposed inventory 🔹 TLS/PKI lifecycle (DigiCert) — 95%+ certificate SLA 🔹 VPN & network segmentation 🔹 Anti-DDoS (Arbor) 🔹 SIEM triage & detection engineering — Elastic SIEM, QRadar, MITRE ATT&CK 🔹 Regulated environments — audit evidence, compliance documentation Italian (EU) citizen based in Valencia, Spain. Available immediately, remote or hybrid.

🇪🇸Valencia, Spain$15/hr90% JSS5.00 (1)Since Aug 2022

Earnings and projects

MRR
$364

Last 6 months ÷ 2.7 months active (since Aug 2026)

World#90,707 / 412k
🇪🇸Country#819 / 4,023
Revenue, last 30 days
$0

Last 6 months: $992

Total earnings
$1k

Billed in all: $1.1k

World#394,363 / 412k
🇪🇸Country#3,931 / 4,023
Per project
$1k

$992 in the last 6 months

World#123,744 / 412k
🇪🇸Country#1,223 / 4,023
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇪🇸Country#1,171 / 4,023
Projects in all
1
0% fixed100% hourly
World#360,671 / 412k
🇪🇸Country#3,513 / 4,023

Earnings, last 30 days

$1.1kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,040$1,060$1,080$1,100Oct 8Oct 23Nov 7

Skill rankings: Top 24% in Network Engineering

Ranked by MRR among everyone on Upwork with the skill.

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  3. #184Network Engineering770 freelancers · 🇪🇸 #2Top 24%
  4. #237Computer Network930 freelancers · 🇪🇸 #3Top 25%
  5. #307Information Security1,158 freelancers · 🇪🇸 #4Top 27%
  6. #465System Administration1,828 freelancers · 🇪🇸 #4Top 25%