Viktor S.
Penetration Tester | Cybersecurity Expert | Ethical Hacker |
Hi there 👋 I'm Viktor, a penetration tester and cybersecurity consultant with 8 years of experience. I help clients find and fix vulnerabilities before attackers do, across web apps, APIs, cloud, and internal networks, and get them audit-ready for SOC 2, ISO 27001, and PCI DSS. I have been recognized as a Top Rated Plus with a 100% job success score across 50+ projects. Take a look at my full profile to discover how I've helped clients secure their products and meet business goals by leveraging security. If you're looking to identify vulnerabilities before attackers do, strengthen your security posture, or meet compliance requirements, you're in the right place. Here's how I help businesses stay secure: 🛡️ Penetration Testing. End-to-end security testing for Web applications, APIs, Mobile apps, and Infrastructure. You'll receive a comprehensive report with not just a list of findings, but clear remediation guidance your team can actually use. 🛡️ Microsoft 365 / Google Workspace Security. A holistic assessment and hardening of your Microsoft 365 or Google Workspace environment, covering identity, access controls, email security, and data sharing settings, so your team can collaborate confidently without exposing common misconfigurations that put your data at risk. 🛡️ Cloud Security & Compliance Readiness. I review and harden your cloud infrastructure to help you confidently meet industry standards including ISO 27001, SOC 2, PCI DSS, HIPAA, and more, without the guesswork.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $44k
Billed in all: $119,030$119k
$2.8k in the last 6 months
Across 39 contracts
Earnings, last 30 days
Skill rankings: #1 in 2 skills of 20
Rarest: top 0.33% in Mobile App Testing, of 1,834. Ranked by MRR among everyone on Upwork with the skill.
- Web App Penetration Testing235 freelancers · 🇵🇹 #1Top 0.43%🇵🇹#1 of 1
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- Website Security529 freelancers · 🇵🇹 #1Top 0.38%🇵🇹#1 of 3
- Static Testing146 freelancers · 🇵🇹 #1Top 1%🇵🇹#1 of 1
- Penetration Testing623 freelancers · 🇵🇹 #1Top 0.48%🇵🇹#1 of 1
- Ethical Hacking320 freelancers · 🇵🇹 #1Top 0.94%🇵🇹#1 of 1
- Alpha Testing265 freelancers · 🇵🇹 #1Top 1%🇵🇹#1 of 2
- Network Penetration Testing212 freelancers · 🇵🇹 #1Top 1%🇵🇹#1 of 1