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Zen K.

Zen K.

Infrastructure Security Engineer & Support Specialist

I am an IT Security Engineer and Support Specialist with hands-on experience supporting, securing, and maintaining modern IT environments across cloud and on-prem infrastructure. I help organizations reduce risk, improve system reliability, and support end users through secure, well-documented, and business-aligned IT solutions. My background spans IT security, cloud platforms (AWS and Microsoft Azure), endpoint management, and day-to-day IT operations. I focus on practical security, clear communication, and solutions that support business goals rather than overcomplicating environments. Core Expertise: ☁️ Cloud Platforms (AWS & Microsoft Azure) Secure cloud environment setup and access control Identity and role-based access management (IAM) Monitoring, logging, and cloud security best practices Hybrid cloud and on-prem integration support 🔐 IT Security & Compliance Endpoint security, firewall configuration, MFA, and access policies System hardening, patch management, and vulnerability remediation Security best practices for small and mid-size enterprises Incident response support and security documentation 🖥 IT Support & Systems Administration Windows environments and Microsoft 365 administration User onboarding/offboarding, device management, and permissions Tier 2/3 troubleshooting for hardware, software, and OS issues Remote and on-site IT support 🌐 Networking & Infrastructure Network configuration, VPNs, and secure remote access Connectivity troubleshooting and performance optimization Support for cloud-based and on-prem infrastructure 📊 Operational Excellence Clear technical documentation and SOP creation Proactive system monitoring and preventative maintenance Strong communication with technical and non-technical stakeholders Why Work With Me? Hands-on experience with PKI and PAM teams at Schneider Electric. Strong foundation in networking, cybersecurity, and cloud fundamentals. Ability to deliver end-to-end solutions — from building your website to securing the infrastructure it runs on.

🇪🇸Barcelona, Spain$50/hr95% JSS5.00 (3)Since Feb 2023

Earnings and projects

MRR
$287

Last 6 months ÷ 6

World#100,089 / 412k
🇪🇸Country#934 / 4,023
Revenue, last 30 days
$0

Last 6 months: $1.7k

Total earnings
$19k

Billed in all: $20k

World#144,744 / 412k
🇪🇸Country#1,408 / 4,023
Per project
$2.1k

$574 in the last 6 months

World#74,086 / 412k
🇪🇸Country#694 / 4,023
Projects, last 6 months
3

Across 4 contracts

25% fixed75% hourly
World#66,479 / 412k
🇪🇸Country#598 / 4,023
Projects in all
9

Across 16 contracts

19% fixed81% hourly
World#212,268 / 412k
🇪🇸Country#1,978 / 4,023

Earnings, last 30 days

$20.2kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$19,750$20,000$20,250$20,500Oct 8Oct 23Nov 7

Skill rankings: Top 19% in Linux

Ranked by MRR among everyone on Upwork with the skill.

  1. #46Security Engineering229 freelancers · 🇪🇸 #2Top 20%
  2. #49IT Infrastructure222 freelancers · 🇪🇸 #2Top 22%
  3. #57AWS Systems Manager290 freelancers · 🇪🇸 #2Top 20%
  4. #61Security Infrastructure187 freelancers · 🇪🇸 #1Top 33%
  5. #75Email Security243 freelancers · 🇪🇸 #2Top 31%
  6. #203Cloudflare636 freelancers · 🇪🇸 #5Top 32%
  7. #318IT Support978 freelancers · 🇪🇸 #1Top 33%
  8. #339Microsoft SharePoint1,122 freelancers · 🇪🇸 #2Top 30%